“How long does demolition take?” is the second most-asked question we get on every site walk, right after “what does it cost?”. The honest answer is that the demolition itself usually takes 1-7 days – but the permitting timeline that precedes it can stretch a project to 4-12 weeks from signed contract to keys-handed-back.
Here is the realistic timeline for every common demolition project type in the Bay Area, broken into the actual demolition phase and the permitting phase.
Whole-house demolition
Demolition phase: 3-7 days
Once permits are in hand and utilities are shut off:
- Day 1: Mobilize equipment, install dust controls and erosion fencing, asbestos abatement if needed
- Days 2-4: Structural demolition – the actual takedown of the house
- Day 5: Foundation removal (if specified)
- Day 6: Final debris haul-off and rough grading
- Day 7: Site cleanup, final inspection prep
Permitting phase: 4-12 weeks
This is where time goes:
- San Francisco: 8-12 weeks (Section 317, 311 notice, asbestos)
- San Mateo / Peninsula: 4-8 weeks
- East Bay (Oakland, Berkeley): 6-10 weeks
- Sacramento: 4-6 weeks
Total project: 5-13 weeks
Deconstruction (hand-dismantle for donation)
Demolition phase: 2-4 weeks
Hand-deconstruction takes 4-6x longer than machine demolition because materials are removed in reusable condition:
- Week 1: Interior strip-out – finishes, fixtures, cabinets, doors, windows
- Week 2: Structural deconstruction – flooring, framing, lumber recovery
- Week 3: Roof and exterior wall takedown
- Week 4: Foundation removal, site grading, donation paperwork wrap-up
Permitting + appraisal: 4-12 weeks (same as straight demo)
Total project: 6-16 weeks
The longer timeline is the trade-off for the donation receipt – typically worth a $30,000-$80,000+ tax-deductible appraisal.
Selective demolition (kitchen, bath, interior remodel)
Demolition phase: 1-3 days
- Single kitchen demo: 1-2 days
- Bathroom demo: 1 day
- Whole-floor interior strip: 3-5 days
- Two-room remodel demo: 2-3 days
Permitting: 1-4 weeks
Interior remodel demo permits issue much faster than full-structure demo. Most Bay Area cities turn them in 1-3 weeks.
Total: 2-5 weeks
Tenant improvement demolition (commercial)
Demolition phase: 3-10 days
Varies hugely by space size and finish-out:
- Small retail (under 2,000 sq ft): 3-5 days
- Restaurant interior (with hood, walk-in cooler removal): 5-7 days
- Office build-out demo (5,000-15,000 sq ft): 7-10 days
Permitting: 2-6 weeks
Total: 3-8 weeks
Pool removal
Demolition phase: 3-5 days
- Day 1: Drain water, remove equipment, deck demolition
- Days 2-3: Pool shell demolition (gunite, fiberglass, or vinyl)
- Day 4: Backfill and compact
- Day 5: Final grade and site cleanup
Permitting: 1-3 weeks
Total: 2-4 weeks
Garage, shed, or accessory structure demo
Demolition phase: 1-2 days
Permitting: 2-4 weeks
Total: 3-5 weeks
Concrete demolition (driveway, patio, slab)
Demolition phase: 1-3 days
Permitting: 0-2 weeks
Many cities do not require a permit for residential concrete removal unless the work touches the public right-of-way.
Total: 1-3 weeks
Fire damage cleanup and demolition
Demolition phase: 5-10 days (varies hugely by damage)
Permitting + insurance: 2-8 weeks
The variable here is insurance documentation and engineering review, not the city permit itself.
Total: 4-10 weeks
What can compress the timeline
- Permit pre-application: Mavco starts the permit the day you sign the contract, not after finalizing build plans. This often saves 2-4 weeks.
- Pre-cleared asbestos surveys: If you can have BAAQMD asbestos testing done while design work is finishing, you compress the critical path.
- Avoiding Section 317 (San Francisco only) by using a renovation rather than demolition permit when possible.
- Pre-disconnect utilities: PG&E and water/sewer signoffs can run in parallel with permit review.
What can extend the timeline
- Asbestos abatement if not anticipated in the original scope
- Neighbor objections in San Francisco (Section 317 hearings)
- Soil contamination discovered during excavation
- Buried oil tanks common in pre-1970 Bay Area homes
- Permit revisions if scope changes mid-project
The honest answer
For most Bay Area homeowners planning a full residential demolition, plan for 8-12 weeks from “let’s do it” to “lot is cleared and ready to build.” For selective demo as part of a remodel, plan 3-5 weeks. For concrete or pool work, plan 2-4 weeks.
Get a project-specific timeline – Mavco quotes timeline alongside cost on every estimate so you can plan your build accordingly.