How small is too small for full-time living?

[Clarion8]

I spent a weekend in a 120 sq ft tiny house before committing and came away with a much more realistic picture than I had from watching YouTube videos. The clever storage and the loft sleeping space are impressive but what you don't feel on a video is how different it is when it's actually raining and you can't step outside for three days. It is not a dealbreake, just something to think through. My honest floor is around 180-200 sq ft with a proper bathroom. Under that and you're making real compromises on daily function that not everyone is prepared for. What's your minimum and have you actually lived at it?

 

[Liz1]

I think you’re pretty close on that range. Under ~150 sq ft gets tight fast for anything long-term, once weather keeps you inside. Around 180–250 sq ft with a real bathroom feels like the practical minimum for most people.

 

[The Man_The Legend]

I could probably do 200 square feet if the layout was smart and there was decent outdoor space. Below that, it starts feeling less like simplifying and more like constantly managing compromises.

 

[sdbpost]

200 sq ft would be doable for me alone. But not with my wife. Biggest issue is the need for separate bedrooms, and I really prefer a separate space for my home office. A 5x10' space within that is large enough to have a full size tub or walk-in shower, an all-in-on washer/dryer and decent storage. I'd have to be very intentional designing in storage and other functional space though, and would rather have 200 for me and another 200 for my car and workshop. Basically a two car garage. I've been getting ideas from watching van life and narrowboating videos for years, and have set up my minivan (Sienna) as a camper. My home base has gone from 2500 to 3000 to 1600, all with 3 car garages and we're about to downsize to 1200. Here in San Diego a small shaded patio would really make 200 sq ft of interior space comfortable, especially if it were screened and used as a 3 season living room. Having the screened walls mentally turns it into 'space' even if it is outside.

 

[Alan]

200 sq ft would be doable for me alone. But not with my wife. Biggest issue is the need for separate bedrooms, and I really prefer a separate space for my home office. A 5x10' space within that is large enough to have a full size tub or walk-in shower, an all-in-on washer/dryer and decent storage. I'd have to be very intentional designing in storage and other functional space though, and would rather have 200 for me and another 200 for my car and workshop. Basically a two car garage. I've been getting ideas from watching van life and narrowboating videos for years, and have set up my minivan (Sienna) as a camper. My home base has gone from 2500 to 3000 to 1600, all with 3 car garages and we're about to downsize to 1200. Here in San Diego a small shaded patio would really make 200 sq ft of interior space comfortable, especially if it were screened and used as a 3 season living room. Having the screened walls mentally turns it into 'space' even if it is outside.

You’ve got a pretty practical way of thinking about space. Designing around function first, then letting the layout follow that, makes even small square footage feel workable if it’s done right.