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Question DetailsAsked on 5/14/2014

What is a fair price for adding a bedroom with bathroom to a townhouse on the 1st floor thru dining room.

Want a window bedroom with walk in closet, bathroo, including a place for washer & dryer. Dining room window will become a door to bedroom.

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2 Answers


This will be a bit of a swag, since we don't know where you live. But you are probably looking at something like $30K - 45K. $30K is probably low, unless you are allowed to GC it yourself and I doubt you will be allowed to do so since it's a townhouse. The bathroom alone can EASILY cost $7500-10K - and that assumes access from your site to tie-into the sewer main. Yikes!

Thing is that you need to have a foundation ... most townhouses don't have basements but some do. We don't know if you have that or a slab?

Note: your association may have very specific requirements about what contractors can work there or get vetted, etc. Please look into that. It's been a long time since I've had a townhouse but I seem to recall that we had to use a certain window contractor when we replaced 2 windows a long time ago.

I've heard of people adding decks to a townhouse but never an addition. I would honestly be surprised if you are allowed but since you are asking maybe others have already done it where you live?

By the way, additions like these are usually not good investments. So before going too far down that road you may wish to think about selling your current place and buying a new one. Rates are very good. Why go through the hassle of a major construction project?

It's one thing to redo a bathroom. Redoing a kitchen is even that much more of a pain. Adding an entire room and bathroom may add SOME value but I would hope that you are only thinking of this because you wish to be there for another 10 years.

Good luck!

Answered 6 years ago by Jefferson


Like other comment said, you need some serious research into Planning and Zoning regs, covenants in your subdivision, condo association rules if a condo, etc. Expansion like his is usually not allowed on condos and townhouses, both on general principles of wanting all properties to look alike, and also because townhouses are usually built to minimal allowed lot lines, so you have no spare land to build onto.

Also, doing this may not have a good return on investment when you sell, as it will be an odd house out and above the normal price range for your area, so moving to a new larger house instead is probably the more economic solution - especially in this market with so many houses available at decent prices.

If allowed, then you will definitely need an architect to do plans and help get P&Z approval and reviews and public notice, and building permits - so start there. He/she can also help locates a General Contractor to do the construction, and with construction inspection.

As for cost - I would say $150/SF is a likely range for cost for normal range construction - more like $200-250 in large cities and with fancier architecture or interiors.

Answered 6 years ago by LCD

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