Why Demolition Still Needs a Site Plan
It's easy to assume demolition permits are just paperwork — sign here, confirm the utilities are capped, haul it away. In most jurisdictions, that's only half the process. The building department also wants to see exactly what's being removed, where it sits on the lot, and what's left standing once the work is done.
This matters more than it sounds like it should. A detached garage coming down might reveal a setback violation on a structure that stays. A demolished addition might change your lot coverage numbers in a way that affects what you're allowed to build next. And if the demolition is a partial one — one wing of a house, an old sunroom, a collapsed carport — the reviewer needs the drawing to show precisely where the cut line falls, not just "the back part of the house."
Full demolitions ahead of new construction are their own category too. Most cities want the site plan to show the lot as it will sit once demolition is complete, before the next building permit even gets filed.
What the Drawing Needs to Show
| Element | Why It's Checked |
|---|---|
| Property lines with dimensions | Confirms context for the whole lot, not just the structure coming down |
| Structure(s) being demolished | Marked clearly, with footprint and dimensions |
| Structures remaining | Everything staying must be shown, not just what's leaving |
| Setbacks of remaining structures | Removal can expose a setback issue that existed all along |
| Utility disconnections | Water, sewer, gas, electric — capped points often need to be noted |
| Erosion/tree protection, if applicable | Larger demolitions can trigger separate site disturbance rules |
Where Demolition Permits Actually Get Delayed
The most common miss is treating a partial demolition like a full teardown on paper — marking "existing house" as one blended shape instead of showing exactly which portion is coming down and which portion remains. Reviewers need that line drawn clearly, the same way an addition site plan needs existing separated from proposed.
The second trap is forgetting what demolition exposes. A shed or addition that's been sitting close to a property line for years might never have been flagged — until it comes down and reveals that the remaining structure itself doesn't meet current setback rules. That's not something you caused, but it's something the site plan needs to account for once the demolition is complete.
Utility capping is the third overlooked detail. Many cities require the site plan (or an accompanying note) to confirm water, sewer, gas, and electric connections have been or will be properly disconnected before the structure comes down — not just implied by "we're tearing it out."
How SitePlans.ai Builds the Plan
- Enter your address to bring in your lot and existing structures.
- Mark which structure or portion of a Place your projectis being demolished.
- Confirm what remains on the lot once demolition is complete.
- Add setbacks for any remaining structures near property lines.
- Note utility disconnection points if required locally.
- Export a clean, permit-style PDF
This gives you a drawing that separates what's leaving from what's staying just as clearly as a reviewer expects — not a single "before" sketch that leaves the after-state to guesswork.
Coverage note: parcel accuracy varies by county. If your property lines look off, cross-check with your county GIS or assessor's office before finalizing, particularly if the demolition is happening near a boundary.
When You Need More Than a Preliminary Plan
Full-lot demolitions ahead of new construction, structures near a shared property line, or projects involving asbestos abatement or hazardous materials typically bring in additional requirements — abatement certification, engineering review, or a licensed survey — that a self-prepared site plan doesn't cover. If your demolition is part of a larger rebuild, sits close to a neighbor's structure, or your city requires a licensed professional's sign-off, SitePlans.us can prepare a human-reviewed version, or you'll need to loop in the right licensed contractor directly.
Who This Is For
- homeowners removing an old shed, garage, addition, or damaged structure
- General Contractors managing demolition ahead of a rebuild or renovation
- Small builders clearing a lot before new construction
- Remodelers removing a portion of a structure as part of a larger project
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FAQ Items
Q: Do I need a site plan to demolish a structure?
A: In most cities, yes. The site plan needs to show the structure being removed, what remains on the lot, and the setbacks of anything staying standing.
Q: What if I'm only tearing down part of a structure?
A: Partial demolitions need the drawing to clearly separate what's being removed from what remains — not one blended shape. Reviewers need that distinction to understand the resulting footprint.
Q: Can demolition expose a setback problem I didn't know about?
A: Yes. A structure that's stood close to a property line for years can surface as a setback issue once something near it comes down. The site plan should reflect the lot as it will actually sit once demolition is complete.
Q: Do I need to show utility disconnections?
A: Many cities require confirmation that water, sewer, gas, and electric connections are capped or disconnected before demolition. Check your local requirements before submitting.
Q: Can I prepare my own demolition site plan?
A: Yes, where your city accepts homeowner or contractor-prepared plans. Full-lot demolitions, hazardous materials, or structures near a shared property line often call for additional licensed review.
Q: When should I use SitePlans.us instead?
A: When the demolition is ahead of a full rebuild, involves asbestos or hazardous material abatement, or sits close enough to a neighboring structure that you want a professional to check it first.