For work-from-home, I can't emphasize enough how much of a game changer it is to have a physically separate building for your work, especially if you have a family with kids and noise and pets and things. Working from a spare bedroom, even one without a bed / outfitted as an office, is just not my thing. Even if your family "knows the rules" and let you work in peace. It subjectively still "feels like you're home". With a separate building, I can do a short walking commute and take those 10 seconds to "get into work mindset." And, once I'm out there, it can be a hermetically sealed, zero-distraction zone.
If you are lucky and fortunate enough to live in an actual house with land, and work (or are thinking about working) remotely, seriously consider investing in an actual separate building for your office.
If what you want is an office you can go to, which is not at home, it seems like it would be ever so much simpler to go live near your actual office, which your employer already pays for, than to move far enough away from everything that you can afford to buy a piece of property and build an office on it, then have to deal with all the extra driving a remote lifestyle implies.
In my opinion it's commuting to the office which sucks, and not working in the office: I had a couple years where I walked in to work every day, and that was basically ideal. (It was, ironically, a job I started while living on the opposite side of the country: I then moved to a place about a mile from the office, quite a pleasant walk through the heart of the city.)
Everyone has different opinions about this stuff, but I for one found _working_ in the office to absolutely be the worst part. And since Covid, my workplace has torn down old buildings and reduced square footage per employee, so if I went back to the office it would be even worse.
I've been WFH since Covid and, when it first happened, my office was in a finished attic that was not well conditioned. I like it warmer so I didn't mind, and the lack of comfort for others meant I enjoyed more solo time.
These days, I may as well not even have a door. I put auto-shutting hinges on it, but that failed as reminder/deterrent long ago.
We've got a 10x20 out back that was supposed to be my workshop, but it's filled with all the things most Americans put in their garages - because we don't have one. I'm seriously considering a deep purge and converting at least 1/2 of to an office; the distractions and context switching are disastrous.
Yeah the worst thing about working from within your house... bathroom, coffee, anything at all that necessitates going out of the room entails a major context switch for the most inane reasons and conversations.
We built a new garage with an upstairs ADU when I started working from home in 2018. It is indeed a game-changer, and when we no longer need the space we can use it for a rental, guest house, etc.
Yeah, second that. I made my office separated from the main house and it's incredible.
We bought an old house and did a full remodel and planned for an office and a work kitchen (my wife is a chef) separated from the main house (and each other).
Stepping back a bit, if you are working remotely that's likely a proxy for an increased likelihood of job loss due to AI.
Why start and invest in a construction project for a building that may not be staffed long term? Perhaps renting a small coworking space in town is the safer financial move. And have your employer pay for it.
One could argue this will get at least 50% ROI if you’re forced to sell your home. It’s strictly illegal in most places to room someone in one of these, but I’m sure people do it all the time. It won’t go to waste.
> In Portland, I didn’t need a permit for the building because it was under the size threshold
You still need a structural building permit, beyond any electrical or plumbing permits, if it's both heated and used either as a living space or "for a business".
The city added the "for a business" wrinkle in 2024 and is very squirrely about whether using it as a work-from-home office counts as "for a business". It _does_ include working from it without bringing employees or clients into the buildling, but the way it's written implies that it's for people running a business out of their home address and not working for someone else's business.
It's a gray-enough area that I hope you got some solid legal advice. We ended up getting the permit to cover our bases in case I had to move to freelance/consulting self-employment.
I jumped to the end and saw $2.3k for the mini split and couldn't believe it. I've installed mini splits on two homes and the quotes were always in the $15-25k range for 3-5 head units, so $2.3k for a head + outdoor condenser unit sounded implausible, but then I saw he found a surprisingly good deal:
> I got a ton of quotes for installing a mini split. They ranged from $4-$7k, which was higher than I expected after researching the cost of a quality small unit and knowing this would be a tiny job for an HVAC contractor, especially because I had my electrician prewire the electrical. I was considering installing a DIY system (Mr. Cool DIY system with pre-charged AC lines), But found an HVAC contractor who would install a system for a much lower price than the other quotes I received (and he had great reviews on Thumbtack). In the end, I got a Daikin Mini-split, a common system with many replacement parts. The installation took about 5 hours, and my tech did a great job. I am glad I researched and got a lot of quotes for this one.
I bought my first minisplit ~4 years ago since none of the contractors were available in the hot summer.
I bought the tools as well (vacuum pump, manifold, pipe cutters, etc.).
It cost me ~650$ total.
The next time I bought a minisplit (3.5kW one), I already had the tools and it cost me only 450$. A proper one meant for use during harsh winter would probably costs a bit more though, at around 1000$.
So I have set up a few of them for my family and friends so far. The units come pre-charged with gas for ~5M of ducts, there is nothing hard to set them up.
I also set up ESP32 controllers so I could attach them to Home Assistant, bypassing any Chinese cloud apps, etc.
>160 hours of education/vocational training and 2 years’ verifiable experience in the trade
To get the license to install minisplits (two years experience generally means working an apprenticeship).
It's no wonder install costs are so much in the US. And as you've experienced, they're hardly rocket science to install. The 160 hours training would be more than enough, I'm not sure why 2 years experience gets tacked on the end.
Honestly, I would recommend just doing it yourself. Especially if you have a contractor pull in the electrical connection for it. I installed a pre-charged unit in a much more complicated attic setup (condenser mounted to outside wall on second floor, 20' of refrigerant lines run with lots of angles) and the whole thing took 6-8 hours with no experience. Mounting it to a shed where you're basically just cutting a hole in a wall and the indoor unit and outdoor unit are in more or less the same location should be extremely straight forward. The unit cost me less than $1k five years ago and has been running perfectly ever since.
one thing about discount DIY mini splits: they're sometimes/often the same model, with a hodge podge of similar but not identical components. it can be very difficult to get a repair person to work on these - they stand a lot to lose if they try to operate on it and make it worse. they really prefer consistency, and - they also seem to harbor a bit of a distaste for diy systems. Actually, I was educated by one serviceperson's opinion and by the end of their complaints, the experience cost more than the cash, injury wise. But I think relaying this, has some value, because I suspect it's common.
HVAC techs are in such high demand, they can charge exorbitant rates to install/service, that its not in their interest to service them, or even install them.
It took me a while to find a company to install a mini split I purchased on my own, and I paid $$ for labor. This was only because I didn't have the time.
That said, mini splits are so cheap (sub $500) that its easier to just purchase a new one than repair.
> I jumped to the end and saw $2.3k for the mini split and couldn't believe it. I've installed mini splits on two homes and the quotes were always in the $15-25k range for 3-5 head units, so $2.3k for a head + outdoor condenser unit sounded implausible, but then I saw he found a surprisingly good deal:
It doesn’t take long to install a mini-split condenser with a single air handler. Precast pad for the condensing unit, set the condensing unit on the pad (or buy a wall mount if you need to mount it off the ground), run sealtite to the condenser from the disconnect switch and pull in wire, drill two holes for the line sets and one hole for the power/signal cable that runs from the condenser to the air handler, mount the air handler, connect the line sets, plug in the power/signal cable, install and wire the thermostat. Seal the holes with silicone and turn the mini-split on.
It’s less than a day of work, finding a mechanical contractor to install equipment you furnish for $160-175/hr shouldn’t be hard, contractors just like ripping off homeowners because they don’t know any better.
You don’t really even need a mechanical contractor with precharged line sets, just ensure the disconnect switch is off and locked out before touching any line voltage wiring, and make sure you mount anything heavy to studs and not plywood or drywall.
Minisplits install costs are the biggest scam in the US, in Japan installs regularly cost under $1000 (that includes the minisplit!).
They're literally designed to be easy to install, but in the US licensing requirements tend to be insane (in my state it's 2 years apprenticeship experience for their 'easier to get' mini-split license) and HVAC companies make more off whole home systems.
These things are regularly installed DIY by homeowners (illegally most of the time but you know), it doesn't take two years of experience to be able to install these without issue. 2 weeks, or half a dozen installs surely would be more than enough.
Thanks for taking the time to make this detailed write-up! You got a beautiful result, and I appreciate the spirit of sharing what you learned and helping people who are considering similar projects.
I'm glad you measured CO2. I've recently noticed I tend to get headaches when working or sleeping in small poorly-ventilated spaces, and I'm surprised how often I encounter new structures without ventilation. I guess tightly-sealed buildings are still a relatively new idea.
In the PNW you could probably be comfortable >90% of days with a cracked window, fan, adjustable shades, and a little electric radiator, but if I was doing this project I'd probably opt for the modern heat pump / ERV combo as well.
There isn't really any clinical evidence for CO2 levels impacting stuff beyond so called "sleep efficiency," where the effect is small (above 1000 ppm is 5% reduction in sleep efficiency) and it has the counterintuitive effect that less efficient sleep is sleeping longer, which is usually what people want. That said, placebo effects are still real.
Boy things are different in Portland where you pay people to insult sheds…
But 8x10 for $20,000 just goes to show how expensive USA is for construction. There’s a point where I would review coworking space cost (not as convenient, I know) to just living and owning property abroad.
In this day and age, where material stuff is so cheap, isn’t 20K for a tiny shed crazy? Clearly it is because it involves so much work, and work is so expensive, but I can’t help but think there should be a technical solution to this. Or buildings are just not automatable? I’m amazed.
It's probably mostly labor cost. An 8x10 shed kit starts at under $US2k but if you pay someone to assemble it, including electrical, the price will go up very quickly.
I know someone who builds horse shelters that are larger than that, but a fraction of the cost, delivered. I've actually been thinking that if I wanted an outside office, I'd ask him to custom build one with the fourth wall closed (horse shelters are 3-sided) and I'd insulate and sheetrock it myself. IIRC he did our 10x30 one for about $2k, including delivery.
Around here, the cutoff for needing a permit for a "permanent structure" is 10'x12' which is a pretty good sized outside office.
This is pretty fancy to call it a shed. Walk outside any Lowe’s or Home Depot and you will see several pre-built options that can be had for $500-$4000 with them getting increasingly elaborate.
Electrical + AC is a firm line where that goes from shed to detached office.
You could do it for less than half that cost if you do your own labour. I actually came into the article thinking that’s what they did but was disappointed.
It was about $9k for the shed and the foundation, poured and installed. The other $11k was for everything else making it a living space and not just a shed. Not so bad in that context.
Theres a baseline cost for work to be done, the OP decided to build an 8x10, but easily could cost a similar amount or a few thousand more for a shed 4x larger.
> But 8x10 for $20,000 just goes to show how expensive USA is for construction.
Labor is expensive. You could probably close to double the size for an additional $10,000, you’d need another yard and a half of concrete for the foundation (6” depth*80 sqft = 40 cubic feet) and more material for the building, but not twice as much material, or labor. Electrical service could stay the same.l and the mini-split wouldn’t have to be much bigger.
Im jealous of the Tuff Shed or prebuilt being an option. Where I live we have incredibly high snow loads, so any structure ends up needing to be custom built to meet our requirements (even out buildings). I've found plenty of pre-fab units that claim to handle "high snow loads" that will not meet code where I am.
I'm still planning on building out an office/studio, but it will be a much larger investment despite being able to DIY much of it.
well it just has to stop significant buildup over multiple days right? IDK, seems pretty effective here in tahoe where ive seen it applied on parts of peoples houses
Do people in Tahoe heat-tape their whole roof or just the edge where ice dams would otherwise form? I've only ever seen the latter, and even doing that will be noticeable on your power bill.
Cascade mountains. I've seen over 5 feet of snow in under 48 hours, then freezing rain. Its heavy! Lots of these "it'll be fine" type structures collapsed.
Building code for snow load is a factor of location and elevation here. We are around 130 lb/sq ft.
Roof pitch can help with shedding, but then you've got other problems (roof avalanches can and do kill, not to mention snow up against materials that don't want to be wet all winter).
This is a problem with the people and ideology that are concentrated in your jurisdiction and the resulting rules that come of that. Even the snootiest "Barack Obama is my neighbor" zip codes have permitting and code exemptions for various sorts of small sheds.
Structurally a wet fart will hold up plenty of snow when we're talking spans on the order of 10ft. A garden shed that can literally roll away in a tornado is only a few hundred dollars of material different from one that can't.
Of course Tuff Shed (or anyone else) isn't gonna make a special product line for one town in CO or wherever that wants to de-facto outlaw the construction of shed by people less than a certain wealth level. Those people can have their stuff built from scratch at great cost. Of the dozen lost sales they were likely some of the most problematic anyway.
Of course they wont! Plenty of people around here still use structures not built for the load or build under the square footage that requires a permit. Those can and do fail, and I'd prefer not to be in one when they do :).
My feedback is merely: boy it'd be nice to have the option to just order a pre-built.
We did this for my wife right before the Pandemic. Luckily we already had a 12 foot by 12 foot cement pad in our backyard. The building itself was 10 feet by 12 feet and cost $5000. Then we had to install insulation and drywall which was another $1500. Then I had a single 20 Amp power line installed and that cost another $1000, but I also had him do some other work and I assisted with the digging of the trench. I think we were at around $9000 all in with it. I checked with the company and that model of building we got is around $8000 now, so maybe around 60% more now?
Did similar, but went 12x16, trenched power and cat6, did rockwool insulation, did pine tongue and groove paneling and an Alaskan white cedar porch.
When we sold the house, I'm pretty sure the shed is what sealed the deal, people had all sorts of things they wanted it to be, even as a spare bedroom
i did a 24x36, with a loft. 2015, 32,000 bucks from lavalley's in newport nh, installed 80 miles away in another random town. poured slab. 6 windows, 2 garage doors. i realized, all i did was build a garage, not a work from home office.
but over the next few years i learned so many hobby art projects: insulation, electrical, sheetrock. a few inspections, a few consults. a few surprises that people in this state can just go buy the stuff at a box store!
and then eventually, my 12x6 foot office appeared, the same width as a 1960s metal tanker desk. finally!
and ... i instantly hated working out there. i didnt make it 6 weeks. it's just an office for storing crap, now: i work out of the house, where the kitchen, dogs, bathroom, are. but the journey was worth it, even if the destination was not.
Nice, I also have an office in my backyard. Although its a ~100 year old brick structure that was originally staff quarters. Had to put a new roof on it, run power, fibre and install AC. Now its my office / data centre (yes I put a rack in a room I sit in...)
Looks awesome, but I would have run single-mode fiber between the house and the office. Eliminates any issues with lightning strikes taking out equipment or other electrical gremlins, not to mention providing opportunity for expanding bandwidth in the future by just swapping out the SFP modules on each end. Pre-terminated fiber from fs.com is inexpensive and easy to work with - just measure and install.
> I wrote up my experience building a backyard office because I wish I had come across more articles like this when planning my build. I hope this post helps you on your journey.
I don't recall how technical it is[^1] because I read it years ago, but Michael Pollan wrote an entire book about building himself a writing room:
I have one problem that keeps me from doing something like this. Weather. I don't want to get wet walking out or back because it happens to be raining.
I always think about it, but then I remember I couldn't sleep knowing my tech stuff is inside a shed in the backyard. Too easy to break in and steal it.
I don't know what kind of tech stuff you have, but since you can run ethernet (or better, fiber) to the shed, you could keep most of it locked in the house and just walk out with your laptop to your workspace each day.
Monitors are relatively cheap these days, you can get a name brand 32" 4K monitor for around $300 - if someone busts in and steals it, the door/window repair will probably cost more than the monitor.
Do you have an idea of the R-value of the insulation you put in? I'm wondering what this will take to heat and cool during the peaks of summer and winter.
I've wanted to build one of these for a while just to have that "going into the office" feel even with WFH; appreciate the detail and breakdown. Also, lovely styled personal site.
$20K still seems like a lot to get some mosquito bites walking through the yard to work. Lack of plumbing, coffee, etc (some of those are fixable of course) is a bit of a turnoff but perhaps the walk is part of the charm.
I find that with kids mostly in school and knowing the rules the exterior space isn’t a requirement, but I don’t have a ton of meetings these days so YMMV. Mostly this is cope because I don’t have 20K to drop on a cool office! :)
If you're relatively handy, a lot of what OP paid for can be DIY'ed. I would have never paid a contractor to do all of that. Probably just the electrical. Especially the Tuff Shed structure. Those things are dead simple, marketed at DIYers, and can be finished in a weekend. Insulation, drywall, trim, and flooring is also child's play. OP could have easily cut the project's cost in half if he wanted to.
Yeah I had the same thoughts about what they chose to DIY vs hire out. Insulation is so simple, and trim can be done at your leisure. But thats also not likely to save much overall since the contractors also know how simple those are.
The Coffee issue is easy to solve, just bring a pitcher of water with you in the morning to pour into the coffee maker - it's what I did when my home office was in a spare room above the garage. The walk from his back yard to the indoor bathroom is probably shorter than the walk he'd have in any office.
I ran PVC between my house and shop/office with 2 sets of single-mode fiber instead of ethernet. Electrical code will require proper grounding for copper for lightning strikes.
True, things in the west tend to cost more than elsewhere (I'm in Seattle WA.)
My mother-in-law lives in rural Missouri and had her 6x10 bathroom remodeled in 2025. Full gut replacement of everything. Total cost: $5600. I got a quote for something similar in a bit larger bathroom in our house in Seattle. Quoted price: $31,000.
Labor is a good chunk of cost, and the OP presented that he simply didn't have the time available to him to do that work himself. On the other hand, I built 20-ish feet of fencing for our backyard this summer, matching an existing design we had done several years ago. Quoted price from the same company that did it the first time: $9800. I did the work myself. My total cost: $1400.
That works out great, right? I also have a significant investment in all the right tools: compound mitre saw, construction-grade table saw, nail guns, impact/hammer/regular drills, angle grinders, power sanders, every drill bit in captivity -- I don't really lack for anything. These make a huge difference in the workmanship of the final outcome.
And that was just a fence. I've considered building an external office here at our house. When I start to take into account the scope of converting an outdoor shed to an acceptable backyard office, I hit the brakes. Electrical power under proper permits, adequate security, something that holds up under our weather, potential water/sewer access, and sufficient space to work (I can't live without a whiteboard)...there is more scope than meets the eye.
All things considered, I think the OP did a pretty good job here in terms of cost control and recognizing what he could do (windows) vs. needed someone else to do (proper electrical.)
Yep. I'm adding 500sqft to my home in Silicon Valley and the cost will end up being more than I spent to buy the house 12 year ago.
Smaller jobs are more expensive per square foot because not all costs scale with size. Which is why you see all these godawful TJ Homes being built where they just rip out the house, build a 3 story structure (including basement) that takes every square inch of the lot.
A lot of that cost is labour. Look at all the spots it says "contracted" in the breakdown. If you can do a lot of the work yourself, then you can save a lot of $$$, but it's a tradeoff of course. (They also could have saved quite a bit by just having a window unit AC, but that's up to them.)
Seems about right given labor. If you do most things yourself other than electrical, can probably cut cost a fair bit. But tradespeople are expensive when you can even get them.
I considered doing this or buying a house that already had an ADU/casita when we were house shopping, but I have a very different situation with being mostly home alone during the day and a dedicated room in the house for an office. I still think this might be an ideal though, because having a physically separate space has both psychological and physical advantages. Particularly, I wish I could pre-wire a /lot/ of networking in the space and separately air condition it, because I prefer much colder temperatures and it'd be cheaper to keep a separate office at 68F and the house at 74F than try to keep the house at 68-70F.
Not a great idea for those in snowy areas of the USA. A short burst of snow storms and now to get to work you're dealing with typical access problems such as frozen doors, shoveling, ice, and cleaning up the melt or adding some small mudroom to get in and out during the day. Also, watching your kids play and build a snowman right in front of your window while you sit in a meeting would feel like torture.
I'm sure it would increase the cost of the project by many times and require more complex permits, but just think how cool it would be to access your office shed through an underground tunnel.
If you are lucky and fortunate enough to live in an actual house with land, and work (or are thinking about working) remotely, seriously consider investing in an actual separate building for your office.
In my opinion it's commuting to the office which sucks, and not working in the office: I had a couple years where I walked in to work every day, and that was basically ideal. (It was, ironically, a job I started while living on the opposite side of the country: I then moved to a place about a mile from the office, quite a pleasant walk through the heart of the city.)
These days, I may as well not even have a door. I put auto-shutting hinges on it, but that failed as reminder/deterrent long ago.
We've got a 10x20 out back that was supposed to be my workshop, but it's filled with all the things most Americans put in their garages - because we don't have one. I'm seriously considering a deep purge and converting at least 1/2 of to an office; the distractions and context switching are disastrous.
We bought an old house and did a full remodel and planned for an office and a work kitchen (my wife is a chef) separated from the main house (and each other).
It's been a game changer
Why start and invest in a construction project for a building that may not be staffed long term? Perhaps renting a small coworking space in town is the safer financial move. And have your employer pay for it.
only as likely as literally every other scenario. the difference is you can continue to use your backyard office for your new job
> I had tried coworking spaces but didn’t love the vibe or the idea of spending hours in a phone booth.
Fantastic.
You still need a structural building permit, beyond any electrical or plumbing permits, if it's both heated and used either as a living space or "for a business".
The city added the "for a business" wrinkle in 2024 and is very squirrely about whether using it as a work-from-home office counts as "for a business". It _does_ include working from it without bringing employees or clients into the buildling, but the way it's written implies that it's for people running a business out of their home address and not working for someone else's business.
It's a gray-enough area that I hope you got some solid legal advice. We ended up getting the permit to cover our bases in case I had to move to freelance/consulting self-employment.
> I got a ton of quotes for installing a mini split. They ranged from $4-$7k, which was higher than I expected after researching the cost of a quality small unit and knowing this would be a tiny job for an HVAC contractor, especially because I had my electrician prewire the electrical. I was considering installing a DIY system (Mr. Cool DIY system with pre-charged AC lines), But found an HVAC contractor who would install a system for a much lower price than the other quotes I received (and he had great reviews on Thumbtack). In the end, I got a Daikin Mini-split, a common system with many replacement parts. The installation took about 5 hours, and my tech did a great job. I am glad I researched and got a lot of quotes for this one.
It cost me ~650$ total.
The next time I bought a minisplit (3.5kW one), I already had the tools and it cost me only 450$. A proper one meant for use during harsh winter would probably costs a bit more though, at around 1000$.
So I have set up a few of them for my family and friends so far. The units come pre-charged with gas for ~5M of ducts, there is nothing hard to set them up.
I also set up ESP32 controllers so I could attach them to Home Assistant, bypassing any Chinese cloud apps, etc.
>160 hours of education/vocational training and 2 years’ verifiable experience in the trade
To get the license to install minisplits (two years experience generally means working an apprenticeship).
It's no wonder install costs are so much in the US. And as you've experienced, they're hardly rocket science to install. The 160 hours training would be more than enough, I'm not sure why 2 years experience gets tacked on the end.
And in my state, I copy pasted what was required for a 'residential' HVAC license (idk if you meant commercial HVAC or just making money on installs).
Idk for Americas, but here in rural EU no one would give a fuck. Some will ask for help.
It took me a while to find a company to install a mini split I purchased on my own, and I paid $$ for labor. This was only because I didn't have the time.
That said, mini splits are so cheap (sub $500) that its easier to just purchase a new one than repair.
It doesn’t take long to install a mini-split condenser with a single air handler. Precast pad for the condensing unit, set the condensing unit on the pad (or buy a wall mount if you need to mount it off the ground), run sealtite to the condenser from the disconnect switch and pull in wire, drill two holes for the line sets and one hole for the power/signal cable that runs from the condenser to the air handler, mount the air handler, connect the line sets, plug in the power/signal cable, install and wire the thermostat. Seal the holes with silicone and turn the mini-split on.
It’s less than a day of work, finding a mechanical contractor to install equipment you furnish for $160-175/hr shouldn’t be hard, contractors just like ripping off homeowners because they don’t know any better.
You don’t really even need a mechanical contractor with precharged line sets, just ensure the disconnect switch is off and locked out before touching any line voltage wiring, and make sure you mount anything heavy to studs and not plywood or drywall.
They're literally designed to be easy to install, but in the US licensing requirements tend to be insane (in my state it's 2 years apprenticeship experience for their 'easier to get' mini-split license) and HVAC companies make more off whole home systems.
These things are regularly installed DIY by homeowners (illegally most of the time but you know), it doesn't take two years of experience to be able to install these without issue. 2 weeks, or half a dozen installs surely would be more than enough.
I'm glad you measured CO2. I've recently noticed I tend to get headaches when working or sleeping in small poorly-ventilated spaces, and I'm surprised how often I encounter new structures without ventilation. I guess tightly-sealed buildings are still a relatively new idea.
In the PNW you could probably be comfortable >90% of days with a cracked window, fan, adjustable shades, and a little electric radiator, but if I was doing this project I'd probably opt for the modern heat pump / ERV combo as well.
If nothing else, at least a well-ventilated room exfiltrates my farts and other airborne waste products.
But 8x10 for $20,000 just goes to show how expensive USA is for construction. There’s a point where I would review coworking space cost (not as convenient, I know) to just living and owning property abroad.
I know someone who builds horse shelters that are larger than that, but a fraction of the cost, delivered. I've actually been thinking that if I wanted an outside office, I'd ask him to custom build one with the fourth wall closed (horse shelters are 3-sided) and I'd insulate and sheetrock it myself. IIRC he did our 10x30 one for about $2k, including delivery.
Around here, the cutoff for needing a permit for a "permanent structure" is 10'x12' which is a pretty good sized outside office.
Electrical + AC is a firm line where that goes from shed to detached office.
Labor is expensive. You could probably close to double the size for an additional $10,000, you’d need another yard and a half of concrete for the foundation (6” depth*80 sqft = 40 cubic feet) and more material for the building, but not twice as much material, or labor. Electrical service could stay the same.l and the mini-split wouldn’t have to be much bigger.
I'm still planning on building out an office/studio, but it will be a much larger investment despite being able to DIY much of it.
Building code for snow load is a factor of location and elevation here. We are around 130 lb/sq ft.
Roof pitch can help with shedding, but then you've got other problems (roof avalanches can and do kill, not to mention snow up against materials that don't want to be wet all winter).
Structurally a wet fart will hold up plenty of snow when we're talking spans on the order of 10ft. A garden shed that can literally roll away in a tornado is only a few hundred dollars of material different from one that can't.
Of course Tuff Shed (or anyone else) isn't gonna make a special product line for one town in CO or wherever that wants to de-facto outlaw the construction of shed by people less than a certain wealth level. Those people can have their stuff built from scratch at great cost. Of the dozen lost sales they were likely some of the most problematic anyway.
My feedback is merely: boy it'd be nice to have the option to just order a pre-built.
What did it do to you that you needed to insult it?
but over the next few years i learned so many hobby art projects: insulation, electrical, sheetrock. a few inspections, a few consults. a few surprises that people in this state can just go buy the stuff at a box store!
and then eventually, my 12x6 foot office appeared, the same width as a 1960s metal tanker desk. finally!
and ... i instantly hated working out there. i didnt make it 6 weeks. it's just an office for storing crap, now: i work out of the house, where the kitchen, dogs, bathroom, are. but the journey was worth it, even if the destination was not.
https://tuhat.net/@sbr/p/big-tech-sucks
The rack warms it in the winter so I don't need any extra cooling, and I run the AC in the summer.
https://www.youtube.com/watch?v=uFP-fU0FsF0
I don't recall how technical it is[^1] because I read it years ago, but Michael Pollan wrote an entire book about building himself a writing room:
https://michaelpollan.com/books/a-place-of-my-own/
[^1]: Being familiar with Pollan's writing, it's likely at least as much philosophical and meditative as technical and practical.
Monitors are relatively cheap these days, you can get a name brand 32" 4K monitor for around $300 - if someone busts in and steals it, the door/window repair will probably cost more than the monitor.
$20K still seems like a lot to get some mosquito bites walking through the yard to work. Lack of plumbing, coffee, etc (some of those are fixable of course) is a bit of a turnoff but perhaps the walk is part of the charm.
I find that with kids mostly in school and knowing the rules the exterior space isn’t a requirement, but I don’t have a ton of meetings these days so YMMV. Mostly this is cope because I don’t have 20K to drop on a cool office! :)
Nice work and thanks for the post!
In some parts of the world, people consider spending time outdoors to be a positive thing.
My mother-in-law lives in rural Missouri and had her 6x10 bathroom remodeled in 2025. Full gut replacement of everything. Total cost: $5600. I got a quote for something similar in a bit larger bathroom in our house in Seattle. Quoted price: $31,000.
Labor is a good chunk of cost, and the OP presented that he simply didn't have the time available to him to do that work himself. On the other hand, I built 20-ish feet of fencing for our backyard this summer, matching an existing design we had done several years ago. Quoted price from the same company that did it the first time: $9800. I did the work myself. My total cost: $1400.
That works out great, right? I also have a significant investment in all the right tools: compound mitre saw, construction-grade table saw, nail guns, impact/hammer/regular drills, angle grinders, power sanders, every drill bit in captivity -- I don't really lack for anything. These make a huge difference in the workmanship of the final outcome.
And that was just a fence. I've considered building an external office here at our house. When I start to take into account the scope of converting an outdoor shed to an acceptable backyard office, I hit the brakes. Electrical power under proper permits, adequate security, something that holds up under our weather, potential water/sewer access, and sufficient space to work (I can't live without a whiteboard)...there is more scope than meets the eye.
All things considered, I think the OP did a pretty good job here in terms of cost control and recognizing what he could do (windows) vs. needed someone else to do (proper electrical.)
Smaller jobs are more expensive per square foot because not all costs scale with size. Which is why you see all these godawful TJ Homes being built where they just rip out the house, build a 3 story structure (including basement) that takes every square inch of the lot.
You can yell at a contractor or the mirror but there's a tax.