Demo Patrol excavator on a Sacramento demolition site
Sacramento, CA CA Contractor #1117491 OSHA-10 Certified

Garage Demolition to Clear Your ADU Lot.

We clear the garage or outbuilding, cap the utilities, and hand you a clean lot. Your builder takes it from there. Here is where our scope starts and ends.

Reviewed by Spencer Farman, licensed California demolition contractor (CA Contractor #1117491). Updated August 18, 2026.

See the process

Key takeaways

  • Demo Patrol clears the garage or outbuilding and preps the lot. We do not design, permit, or build the ADU that goes up after.
  • Permits still run through the same jurisdiction path as any Sacramento demolition: County around $250, City $300 and up.
  • The slab is a keep-or-remove decision for your ADU builder or engineer, not us. We remove it when asked, or protect it if the plan is to build on it.
  • Rough grading after demolition runs $3,500 a day. Engineered, compaction-tested, build-ready pad prep is the builder’s scope, not ours.

Garage-to-ADU-Lot Prep, Step by Step

Five steps get you from an existing garage to a clear footprint. We handle the demolition side; your builder handles everything that goes up after.

1. Confirm the Permit Path

A detached garage or outbuilding demolition in Sacramento goes through the same permit process as a house teardown. Sacramento County runs a permit and waste management plan for around $250. The City of Sacramento runs heavier, with notarized documents and department sign-offs, budgeted at $300 and up.

Your ADU permit is a separate application handled by your builder or designer. We only pull the demolition permit for the structure coming down.

The full jurisdiction breakdown, county versus city, is in our Sacramento demolition permit guide.

2. Cap the Utilities

Most garages carry at least an electrical run, and some carry gas or water for a workshop or laundry setup. Those get capped and disconnected as part of the demolition scope before the structure comes down.

811 utility locating marks anything underground on the lot before equipment moves.

3. Decide the Slab: Remove or Protect

This is a decision for your ADU builder or engineer to make, not us. Tell us whether the slab comes out or stays before demo day.

We remove concrete at $4 to $5 per square foot when it is the primary scope, or we work around a slab you want to keep in place.

4. Clear the Structure

Once permits, utility caps, and the slab decision are set, the garage or outbuilding comes down. This is straight structural demolition, framing, roofing, siding, and slab if it is going, sorted and hauled as it comes down.

Concrete goes to crushing and recycling, metal goes to scrap, and Green Halo tracks the diversion records the jurisdiction wants on the waste management plan.

5. Hand the Lot to Your Builder

Our scope ends at lot prep: debris gone, slab handled the way you specified, and the footprint clear. If you want the lot rough graded before your builder mobilizes, that runs $3,500 a day.

Engineered pad prep, compaction testing, and soils work for the ADU foundation are your builder’s or engineer’s scope. We do cleanup, sifting, and rough grade only, and we say so up front so nobody is surprised at handoff.

Demo Patrol Kubota excavator working a debris pile on a rural teardown site

Structure down, footprint clear.

Real Demo Patrol teardown, debris sorted on site.

Where Our Scope Ends

We are a demolition contractor, not an ADU builder. We do not design your unit, pull your ADU permit, or price out construction.

What we hand off is a clear lot: structure gone, slab handled the way your builder specified, utilities capped, and debris hauled with diversion records on file.

If your project also involves a full house teardown instead of just the garage, see our Sacramento residential demolition page. If the job is concrete-heavy, like a large slab or driveway, see Sacramento concrete demolition.

One Crew, One Scope: Demolition

Demo Patrol is a licensed Sacramento demolition contractor. CA Contractor #1117491, OSHA-10 Certified, A+ BBB Accredited.

Written quote within 24 hours of the site walk, and work typically starts about a week out once permits allow. Full checklist of what to line up before demo day is in our pre-demolition checklist.

Aerial view of a graded residential lot after a Demo Patrol demolition

Lot ready for your builder.

Graded and cleared, hand-off point for your ADU project.

Garage Demolition for ADU Lot Prep FAQs

Does Demo Patrol build the ADU after the garage comes down?

No. We clear the garage or outbuilding and prep the lot. Design, permitting, and construction of the ADU itself is your builder’s scope, not ours.

How much does garage demolition cost for an ADU project in Sacramento?

Structure demolition is priced like any residential teardown based on size and access. If concrete removal (the slab) is the primary scope, that runs $4 to $5 per square foot. Get a written quote within 24 hours of a site walk for exact numbers.

Can you keep the garage slab for the ADU foundation?

Yes, if your builder or engineer confirms the slab works for the new footprint. Tell us before demo day and we work around it instead of removing it.

Do I need a separate permit for the garage demolition?

Yes. The demolition permit for the existing structure is separate from your ADU building permit. We pull the demolition permit; your builder handles the ADU permit.

Will you grade the lot for the new foundation?

We do rough grading at $3,500 a day, which is cleanup, sifting, and leveling. Engineered, compaction-tested pad prep for the ADU foundation is your builder’s scope, not ours.

About the reviewer

Spencer Farman is the owner and lead operator of Demo Patrol, a licensed California demolition contractor (CA Contractor #1117491). He quotes and runs every job himself, including garage and outbuilding demolition ahead of ADU projects across Sacramento.

BBB A plus accredited business Sacramento Metro Chamber member

Last updated August 18, 2026. Pricing and permit costs reflect Sacramento County and City of Sacramento processes as of this date. ADU permitting, design, and construction are handled by your builder, not Demo Patrol.

Clear the Lot for Your ADU

Written quote within 24 hours. We handle the garage demolition and lot prep so your builder can start on schedule.

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