Free ADU planning estimate • Los Angeles County

See what your property could become.Start with real planning numbers.

Get a ballpark ADU cost, project timeline, and rental range in about 60 seconds. Then request a free property review from a licensed Los Angeles contractor.

Talk to a specialist
No obligation CSLB #1124836 About 60 seconds
Your free planning snapshot

Know the numbers before the sales call

Ballpark construction range
Based on ADU type and approximate size
Planning timeline
Design, permits, and construction combined
Rental-income range
A starting range for long-term planning
Free property review
A specialist checks the lot details you provide
You see your preliminary range before entering your name, phone number, or email.
A better first conversation

Useful answers—not a vague “we’ll call you” form

The calculator gives you a transparent starting range. The property review then focuses on the details that actually change ADU feasibility and cost.

Budget range first

See a preliminary cost range before sharing contact information.

Property-specific follow-up

Your address and goals give the specialist a useful starting point.

A clear next step

Qualified homeowners can immediately request a no-obligation site visit.

How it works

From curiosity to a buildable plan

01

Get your planning range

Choose an ADU type, approximate size, goal, and timeline. You’ll see a ballpark range before entering contact information.

02

We review the property

A specialist checks the address and asks about setbacks, access, utilities, existing structures, and the approval path for your city.

03

Choose the right next step

If the project is a fit, schedule a site visit and receive a clearer scope for design, permits, and construction.

Project photo archive

Real construction details, not just renderings

Selected examples of finish work and in-progress construction. Some photos show renovation work and construction phases rather than completed ADUs.

View all project photos
White kitchen cabinets, stone counters, tile backsplash, and stainless range hood

Kitchen finish work

Cabinetry, stone surfaces, tile, lighting, and appliance coordination.

Finished living room with restored wood floors, fireplace, and decorative windows

Finished interior

Wood floors, wall finishes, trim, windows, and fireplace detailing.

Interior wood framing with electrical rough-in and ceiling reinforcement

Framing phase

Wall layout, ceiling reinforcement, and rough-system coordination.

Why estimates vary

The lot matters as much as the floor plan

That is why the calculator is a planning range and the property review is the valuable next step.

Lot and access

Slope, easements, driveway width, staging room, and distance from the street can change the scope.

Size and layout

Bedrooms, bathrooms, structural spans, and custom design decisions affect cost more than square footage alone.

Existing conditions

Garage foundations, electrical service, sewer location, trees, and soil conditions need to be reviewed.

City and permit path

Plan-check requirements, utility coordination, and local review times vary by jurisdiction.

Los Angeles planning ranges

Start with a realistic range

These broad planning ranges can include design, permitting, and construction assumptions, but every property needs its own scope. Utility upgrades, grading, demolition, premium finishes, and unusual site work can increase cost and time.

Garage conversion
$95K–$190K+
6–10+ months
Detached ADU
$175K–$400K+
10–18+ months
Attached ADU
$155K–$360K+
9–15+ months
Financing may be available through third-party lenders, including home-equity and construction-loan products. Terms, approval, rates, and availability depend on the lender and homeowner. Build Construction is not a lender.
Common questions

What homeowners ask first

Service area

ADU planning across Los Angeles County

City rules and plan-check procedures vary. Submit your property ZIP and our team will confirm whether the address is inside the current service area.

Los Angeles Burbank Pasadena Inglewood Downey
Free • No obligation • CSLB #1124836

Find out what your property could support

Start with a transparent planning range, then request a property review when you are ready.

(323) 479-1859