Your Property.
More Potential.
Family-owned and building since 1986. OMNI manages every ADU project from permits to move-in — so you don’t have to.
on your lot
California law now makes ADUs faster and easier to permit than ever. OMNI has been building them long before they were trendy.
House Your Family
Keep aging parents nearby. Give adult children a start. Build the multigenerational home your family actually needs — on land you already own.
Most common useGenerate Monthly Income
SoCal ADUs rent for $2,000–$3,400/month. Long-term tenant or short-term rental — either way, your mortgage becomes someone else’s problem.
$24K–$40K/yearIncrease Property Value
ADUs typically return $1.50–$2.00 in appraised value per dollar invested. Most homeowners fully recoup the build cost at resale.
Best ROI in real estateStreamlined CA Permitting
AB 2221 eliminated discretionary review for most ADUs. Under 800 sq ft is now a ministerial approval — no hearings, no neighborhood objections.
Faster than everFlexible for Decades
Rent it now. Use it as an office next. Retire into it later. An ADU adapts to your life as your needs change — it’s not a one-use asset.
Lifelong assetFully Managed by OMNI
We manage every sub, every inspection, every submittal. You get one project manager and one phone number — the OMNI way since 1986.
Hands-off for youLet's talk about how.
Every family's financial situation is different — and that's okay. There are more ways to finance an ADU than most people realize. We work with homeowners to connect them with options that may fit their goals, including lenders like U.S. Bank.
We're builders, not lenders. So we'll always encourage you to speak with your own financial institution as well. Our job is to make sure you have the full picture — so nothing stands between you and your project.
A fast, flexible option for smaller ADU projects like garage conversions or JADUs. Funds can be available quickly — sometimes same-day. No home equity required to qualify.
- Good starting point for lower-cost builds
- Approval based on creditworthiness
- No impact on your home's title
For larger ADU projects, secured financing leverages your existing home equity to unlock higher loan amounts at competitive rates. Ideal for detached ADUs and two-story builds.
- Higher limits for larger projects
- Typically lower interest rates
- HELOC or home equity loan options
Designed specifically for new construction. Funds are disbursed in draws as your project reaches milestones — keeping capital aligned with your actual build progress.
- Built for ground-up construction
- Draw schedule tied to project phases
- Converts to mortgage upon completion
Select a type below to update the cost estimate. Every lot is different — we’ll confirm feasibility in your free consultation.
Freestanding structure in your backyard. Maximum privacy, full separation, most design freedom.
$280 – $420 / sq ftAddition or conversion sharing a wall with your main home. More cost-efficient, easier to tie utilities.
$220 – $360 / sq ftConvert your existing garage into a legal living space. Fastest permits, lowest cost, existing structure utilized.
$140 – $240 / sq ftUp to 500 sq ft carved from your existing home interior. Lowest cost, minimal site work required.
$90 – $160 / sq ftMaximize sq footage on a smaller footprint. Ideal for narrow lots. Highest finished value per lot coverage.
$320 – $480 / sq ftFactory-built, delivered, and set on your foundation. 30–50% faster timeline, factory quality control.
$200 – $340 / sq ftBase construction estimate only. Permit fees, city charges, site prep, and utilities are additional and vary by city and lot. Contact OMNI for a complete quote.
Free Consultation
Lot assessment, feasibility check, and an honest scope conversation
Design & Plans
Permitted architectural drawings tailored to your lot and goals
Permits Filed
We handle all city submissions and respond to corrections
Construction
Licensed subs, managed daily by your dedicated OMNI project manager
Move-In Ready
Final inspection passed, punch list complete, 10-year warranty issued
We'll do the rest.
We want you to feel informed before you ever call us. These are the most useful official resources for California homeowners exploring ADUs.
CA HCD ADU Resource Center
The state's official hub for ADU laws, guidelines, and homeowner information. Start here.
California ADU Handbook
Published by CA HCD — a plain-English guide covering everything from permitting to design standards.
CalHFA ADU Grant Program
Qualifying homeowners may be eligible for up to $40,000 in grant funding toward predevelopment ADU costs. Worth checking before you budget.
LA County Building & Safety
Permit applications, inspection scheduling, and code requirements for unincorporated LA County properties.
Whittier Building Division
Local permit requirements, plan check process, and contact info for City of Whittier building department.
AB 2221 & SB 897 Overview
The 2023 laws that streamlined ADU permitting statewide — eliminating most discretionary review for ADUs under 800 sq ft.
Free 30-minute assessment. No pressure. Just real answers from a family GC that’s been doing this since 1986.
