Garage conversion and ADU permit readiness
Before you hire, design, or build, find the permit traps.
PermitCheckup gives homeowners a plain-English read on the likely permit path, zoning questions, trade permits, documents, and city sources that can make or break a garage conversion or ADU.

Hiring a contractor, paying for plans, buying materials, or starting demo.
Garage conversions, ADUs, basement units, and remodels where legal living space matters.
A sourced permit-readiness brief with risk flags and questions to ask the city.
Why this matters
The expensive mistake is assuming the permit is just paperwork.
For garage conversions and ADUs, the permit path can expose zoning, egress, parking, utilities, structural, energy, fire separation, and inspection issues. The earlier you find those, the cheaper they are.
Zoning or overlay surprise after design work starts
Garage structure not legal for habitable space
Electrical, plumbing, HVAC, or sewer scope missed up front
Unpermitted work creates inspection or resale problems
Contractor quote excludes permit-triggering requirements
Application correction cycle adds weeks or months
Free beta lead magnet
Get one free permit-readiness checkup for your project.
Send the city, address or nearest cross streets, project scope, rough dimensions, and whether electrical, plumbing, mechanical, or structural work is included. We reply with the likely permit path, source links, watch-outs, and next questions.
Paid product validation
The kit we are testing: a city-specific permit readiness packet.
If enough homeowners need more than a free checkup, the paid kit will package the repeatable work: checklists, plan-review traps, document prep, contractor handoff notes, and inspection questions.
Legal living space without avoidable permit surprises.
Especially useful before paying for drawings, signing a contractor scope, buying materials, or trying to legalize existing work.
- City-specific permit path map
- Garage/ADU feasibility checklist
- Document and plan-prep worksheet
- Contractor scope handoff sheet
Tell us your city and what would make a readiness kit worth paying for. That tells us what to build instead of guessing.
Join the kit waitlistHigh-intent city pages
Start with the permit question closest to your project.
Austin Garage Conversion Permit
Likely needs residential plan review; Austin lists garage conversion and carport/porch enclosure as a specific residential application type.
High confidenceDenver, CODenver Garage Conversion Permit
Likely needs residential construction review; converting a garage to habitable space is not a simple quick-permit item.
High confidenceRaleigh, NCRaleigh Garage Conversion Permit
Likely requires plans; Raleigh lists enclosing a garage and converting unheated to heated space as permit work requiring plans.
High confidenceAustin, TXAustin ADU Permit
Austin treats an ADU as a regulated additional dwelling unit; expect zoning verification, unique addressing, residential plan review, and trade permits where applicable.
High confidenceDenver, CODenver ADU Permit
Denver ADU feasibility is zoning-sensitive; expect zoning, building, SUDP, and trade review before an ADU can be built or occupied.
Medium confidenceRaleigh, NCRaleigh ADU Permit
Raleigh ADUs require permitting and have specific zoning, size, foundation, use, contractor, and rental restrictions to verify early.
High confidenceCalifornia, StatewideCalifornia ADU Permit
California state law creates important ADU protections, but homeowners still need local ministerial review, building permits, and site-specific compliance.
High confidenceLos Angeles, CALos Angeles ADU Permit
Los Angeles ADUs must follow zoning, building, and residential codes; standard plans can speed review but still require site-specific checks.
High confidenceSan Diego, CASan Diego ADU Permit
San Diego requires a building permit for every ADU or JADU; coastal, parking, FAR, and conversion rules can change the path.
High confidenceSeattle, WASeattle ADU Permit
Seattle ADUs are not legal unless established through a permit process; attached, detached, and existing-unit legalization all need construction permits.
High confidencePortland, ORPortland ADU Permit
Portland requires building and trade permits to convert a home or garage into an ADU or build a new ADU.
High confidenceOther homeowner permit guides