Remodel & Renovate in 94611>Question Details

Claire Wills, Real Estate Pro in Oakland, CA

What is the process to add a half bath to a home in the garage?

Asked by Claire Wills, Oakland, CA Tue Jun 19, 2012

Is this something that can be done quickly and around how much does it take? Any information would be very helpful. Thank you.



Help the community by answering this question:


Pacita Dimacali’s answer
How much does it take depends on where the garage it on the first floor of a house? Is it detached?

And what are the rules in your city. Generally, something like this will require a building permit which in turn will require plans for the project.

Before you undertake this, go to your building permit department and find out if you can even do this, what documents are required, and what are the minimum requirements to build according to the building code?
0 votes Thank Flag Link Tue Jun 19, 2012
Hi Claire,

Might be a convenient thing to have , but likely not worth it, in my opinion. When you start installing plumbing in a garage, the City building dept believes you are increasing "living space", and then you have to address their protocol and procedures: If the owner installs a half bath without City permits, they are violating the City Building dept regulations and are subject to fine, forced removal of the work etc. Also disclosure of unpermitted work is also necessary in the future sale of the property.

If the owners chooses to do the work legally,which I would advise, they have to apply for a building permit, and go through zoning approval (may be over the counter, but may take longer), and building dept approval, with a drawings. Not necessary to use an architect, but the drawings have to be to scale etc., and instructions, check list etc, from the building dept need to be followed. The City may approve this easily if they are convinced the owner is not trying to make the garage an illegal living unit or bedroom or mother in law. Even if they grant approval, this initial permit process will take a bit of time, and will cost some money. And property taxes will be adjusted slightly upwards, depending upon how the city values the improvement to the property which is passed on to the County for the Assessor's office.

Then there is the cost of the actual work by the licensed contractor. If permits are taken out, the work has to be done by a lic contractor or homeowner who needs to show they are agreeing to the liability involved. Good luck. If this is Oakland: Building Services: 510-238-3443 Best to just go down there: 250 Frank Ogawa Plaza, 2nd Floor
1 vote Thank Flag Link Wed Jun 20, 2012
Adding a half bath to a garage will not necessarily add value to your house. If the garage is mainly used for parking cars I would take the money that you would be spending on the half bath and use it for upgrades on the existing house. If the garage has already been converted to a bedroom or office, the half bath should add value and I would proceed. The cost is dependent on the size, access to existing plumbing and electrical, and the finishes.
0 votes Thank Flag Link Fri Jul 20, 2012
Do you think it would add value? Why and how much? Check first with the City zoning and permit center. Does it eliminate the garage to park a car? Etc, etc.
Not obvious it is a good idea (yet). We need more info for that.
Good luck.
0 votes Thank Flag Link Wed Jun 20, 2012
I do not feel that adding a 1/2 bath to a home in a gargage is going to be simple. First you need a plan, then permits from the city, then you need to bid the work out and if you are lucky and the sewer system, electricity, cold and hot water connections are near by, your costs will be reduced.

good luck
0 votes Thank Flag Link Tue Jun 19, 2012
Search Advice
Ask our community a question
Email me when…

Learn more

Copyright © 2016 Trulia, Inc. All rights reserved.   |  
Have a question? Visit our Help Center to find the answer