Change of use & occupancy
Converting a building from one occupancy classification to another — the permitting path with the most unbudgeted surprises.
How it compares to the other two.
Tenant improvementsFit-out of a leased spaceOpen
You’re hereChange of useOne occupancy class to another
New constructionGround-up commercialOpenYour plans start with your scope.
Every commercial space is different — bring us your scope. Which upgrades a new occupancy classification triggers is the whole question here, and it is worth scoping before you sign anything.
Rules that apply.
Limits vary by jurisdiction. These are the levers that decide what fits on your lot — we confirm every one of them against your city before design starts.
- Occupancy classificationChanges with use
- Accessibility upgradeCommonly triggered
All the rules that apply, with citations
- Fire & life safetyRe-reviewed under new class
- ParkingMay be recalculated
These are the reviews and limits that typically govern this work. Most are set by your jurisdiction and by the building, fire and accessibility codes — they are requirements, not starting points. We confirm exactly which ones apply to your address and scope before design starts. See regulations by city. Statutes reviewed 4 August 2026.
Is this you? When this is the right call

Feasibility → design → permit → build — the same four steps as every project we run. See how the process works.
Start with a free consultation.
Under an hour, no pressure — we talk through what your lot allows and give you a ballpark for your property. No charge, and no obligation to go further.