Do you remove a pool if the ADU will sit over the footprint?

Yes. When the planned ADU footprint crosses a former pool, full removal with engineered backfill and documented compaction is the safer path — typically $10,000–$20,000 for a concrete or gunite pool. A partial fill-in is rarely structurally acceptable under an ADU slab.

How long does ADU site prep take?

Most jobs run three to seven working days on site once we mobilize. Permits, heritage-tree review, and pool removal are usually the longer items on the calendar — start those before the foundation crew is booked so the build doesn't wait on prep.

Do trees affect the ADU prep timeline?

Often, yes. The City of Sacramento and several county jurisdictions require review before work on protected or heritage trees over a set trunk diameter, which can add two to four weeks. We flag protected trees during the access walk and coordinate review before any canopy or root-zone work.

Are you the general contractor for the ADU?

No. We are site prep specialists — clearing, demolition, grading, and pad readiness — and we hand the site off to your ADU builder or general contractor. The final pad spec follows your architect's and engineer's plan.

ADU Site Prep Cost & Steps | Sacramento

What does ADU site preparation include?

ADU site prep is everything between the lot you have and the pad your foundation crew needs. On most Sacramento-area parcels that means removing what's already there, shaping the ground, and proving the subgrade is compacted before the slab goes in. The scope below is what we coordinate as a single sequence so the build doesn't stall on a backyard surprise.

Detached garage, carport, or outbuilding demolition where it sits in the build envelope
Old gunite or concrete pool removal where the ADU footprint overlaps the shell
Mature tree coordination — heritage-tree review before any canopy or root-zone work
Concrete patio, walkway, and flatwork removal inside the pad area
Rough grading, cut/fill balance, and compaction to the engineer's spec
Drainage shaping so water leaves the pad in the direction the plan calls for
Utility trench prep for the builder's sub-panel, water line, and sewer lateral

How much does ADU site prep cost?

A standard ADU site prep on a flat, accessible lot runs $5,000–$15,000. Sloped sites, existing structures to demolish, or significant earthwork push the range toward $10,000–$25,000. The numbers below are the line items we quote most often — see the Sacramento demolition cost benchmarks for the full regional reference.

Scope	Typical Range	Notes
Standard-lot site prep	$5,000–$15,000	Clearing, rough grading, and access on a flat lot
Sloped or larger custom site	$10,000–$25,000	More cut/fill and earthwork volume
ADU pad preparation	$3,500–$15,000	Subgrade, compaction, and base rock for the slab
Detached garage demo (common add-on)	$2,500–$6,000	Slab removal priced separately
Pool removal inside the footprint	$10,000–$20,000	Full removal with documented compaction
Concrete patio and walkway removal	$1,500–$4,500	Flatwork inside the build envelope

What's the typical sequence before the slab?

Access walk — we confirm whether equipment runs from an alley, a side gate, or the street before quoting
Permits and tree review — grading permits and any heritage-tree review start first because they take the longest
Demolition — garage, pool, and flatwork inside the envelope come out and get hauled
Clearing and grubbing — vegetation, roots, and old footings removed to clean subgrade
Cut/fill grading — the pad is shaped and balanced to the engineer's elevations
Compaction — subgrade compacted to 90–95% relative density with documentation
Drainage and utility prep — water routed off the pad, trench paths opened for the builder
Pad-ready handoff — broom-clean site, subgrade photos, and compaction notes to your GC

How does ADU prep change by Sacramento-area city?

The work is the same; the wrinkles are local. Lot age, access type, tree rules, and pool stock shift the prep on every city. Pick your city for a page written around its housing stock and jurisdiction:

Sacramento — central infill lots, alley access, heritage trees, and midcentury pools
Roseville — newer west-side tracts and east-side mature lots, City of Roseville review
Folsom — sloped lots, granite subgrade, and historic-district constraints near Sutter Street
Citrus Heights — 1960s–70s ranch lots with detached garages and aging pools
Fair Oaks — large mature-tree lots and septic coordination on the bluffs
Carmichael — deep lots, mature canopy, and frequent pool removals
Rocklin — rock and decomposed granite that make cut/fill harder
Lincoln — newer subdivisions plus rural-edge parcels with longer access
Elk Grove — flat valley lots, clay soil, and drainage-first grading

What permits and tree rules affect ADU prep?

Most Sacramento-area jurisdictions require a grading permit once earthwork passes a volume threshold, and a demolition permit for any structure that comes down. Heritage and protected-tree ordinances are the bigger schedule risk — the City of Sacramento and several county jurisdictions require review before canopy or root-zone work on trees over a set trunk diameter, which can add two to four weeks. Sites that disturb more than one acre also need SWRCB stormwater coverage. We flag all of it during the access walk and pull the permits as part of the job. See the Sacramento County demolition permit guide for the jurisdiction-by-jurisdiction detail.

How do we hand the pad off to your builder?

Pad left rough-graded with documented compaction notes for the inspector and GC
Drainage routed off the pad in the direction the engineer's plan specifies
Utility trench paths cleared and accessible to the builder's sub crews
Debris hauled, work area broom-clean, and the access path restored
Photos of subgrade and any buried surprises — old footings, pipes, drylines — handed to the GC

Frequently asked questions

How much does ADU site preparation cost in the Sacramento area?: A standard ADU site prep on a flat, accessible lot runs $5,000–$15,000 for clearing, rough grading, and access work. Sloped lots, existing structures to demolish, or significant earthwork push the range to $10,000–$25,000. Pool removal inside the footprint and detached garage demo are priced as separate line items.
Do you remove a pool if the ADU will sit over the footprint?: Yes. When the planned ADU footprint crosses a former pool, full removal with engineered backfill and documented compaction is the safer path — typically $10,000–$20,000 for a concrete or gunite pool. A partial fill-in is rarely structurally acceptable under an ADU slab.
How long does ADU site prep take?: Most jobs run three to seven working days on site once we mobilize. Permits, heritage-tree review, and pool removal are usually the longer items on the calendar — start those before the foundation crew is booked so the build doesn't wait on prep.
Do trees affect the ADU prep timeline?: Often, yes. The City of Sacramento and several county jurisdictions require review before work on protected or heritage trees over a set trunk diameter, which can add two to four weeks. We flag protected trees during the access walk and coordinate review before any canopy or root-zone work.
Are you the general contractor for the ADU?: No. We are site prep specialists — clearing, demolition, grading, and pad readiness — and we hand the site off to your ADU builder or general contractor. The final pad spec follows your architect's and engineer's plan.

Build-Ready Site Prep

Site Prep for New Construction Sacramento

New construction starts cleaner when clearing, demolition, rough grading, drainage, access, and pad readiness are handled before the building crew arrives. The goal is not just an empty lot; it is a site ready for the next trade.

GC Site Prep Package

Site Preparation for Contractors in Sacramento, CA

General contractors do not need a dozen earthwork subs. They need one site prep partner who can deliver a build-ready site, on schedule, with a documented handoff. That is the service: a packaged demo, clearing, grading, and access scope with a single point of contact and a clear definition of done.

Builder Earthwork Sub

Builder Excavation Support in Sacramento, CA

Builders do not need a hero earthworks crew. They need predictable scheduling, clean handoffs, and a sub who can hit a footing date without drama. Footing excavation, utility trench prep, rough grading, driveway excavation, retaining wall scope — across single-lot custom homes, ADUs, and multi-lot production runs.

ADU Site Prep — Sacramento Region