Planning a room addition, second story or garage-to-living conversion and not sure what your building department expects to see? Download our free sample home addition and garage conversion permit drawing below. It is a real set we prepared for a past project, with client details removed, so you can see how the sheets are organized and what plan reviewers usually ask for.
What's in the free sample
The PDF has four sheets taken from a real permit set we drew for a past client:
- Room addition floor plan and wall section
- Room addition elevations
- Garage conversion floor plan
- Garage conversion elevations
Client names, addresses and parcel details have been removed, and every sheet is marked "Free sample – not for construction". The structural calculations, general notes and the remaining sheets are not included. This file is for reference only: it shows the level of detail a plan reviewer expects, but it cannot be submitted for a permit.
Get the free sample PDF by email
What your building department will check
- How the new foundation ties into the existing one
- Headers over new openings and any removed walls
- Insulation and vapor barrier for converted garage space
- Raising or insulating the garage slab
- Egress and ceiling height for bedrooms
How to use this sample
- Compare it with your city or county permit checklist.
- Use it to sketch your own project and gather the information you need.
- Share it with your contractor so everyone agrees on the scope.
Important: this sample is for reference only. It is not stamped, and it was drawn for a different address, code and loads. Do not submit it for your permit.
Tips before you start
- Measure the existing rooms that connect to the addition.
- Photograph the attic and crawlspace so framing directions are clear.
- For garage conversions, check parking replacement rules in your city.
When you need custom drawings
Most cities need drawings made for your exact address, size and local code, and some also require a professional engineer's stamp. We prepare permit drawings for projects in all 50 states and send a fixed quote within 24 hours. If your city requires a stamp, it comes from an independent licensed PE under a separate arrangement.
See our adu, addition & garage conversion drawings
Frequently asked questions
Can I use this free home addition and garage conversion permit drawing for my permit?
No. It is a reference sample. Your permit set must match your address, size and local code.
Is the drawing stamped by an engineer?
No. A stamp is only added to custom drawings when your city requires one, by an independent licensed PE under a separate arrangement.
What file format is the download?
A PDF you can open on any computer or phone and print.
Get a quote for your project
Tell us about the project. We'll ask any questions we need, then send a fixed price and timeline. No payment until you approve the quote.
- Send sketches, photos or old plans
- [email protected]
- Response time
- Usually within 24 hours
- Coverage
- Projects in all 50 states
- We review your projectand ask any questions, usually the same day.
- You get a fixed quotewith price and timeline. No payment until you approve.
- We draft and reviseuntil the set is ready to submit for your permit.
Plans were delivered fast and communication was excellent. Willing to do revisions as needed to make sure everything meets requirements.
Thanks, we got your project.
We'll email your fixed price and timeline, usually within 24 hours.

