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Modern backyard ADU — design inspiration
About HomeAdd

Woodland Hills contractor,
building more home across Greater LA.

We're a California design-build company obsessed with one thing: unlocking square footage on the property you already own — legally, beautifully, and without the horror stories.

Our story

Born from remodels. Rebuilt for the ADU era.

HomeAdd started with home additions for neighbors in the Valley. When California opened the door to ADUs, we saw what homeowners actually needed: not a bigger house on a bigger lot, but more usable, permitted space on the property they already loved.

So we rebuilt the company around it. We coordinated architecture and permit management under one contract. We standardized detailed design-build proposals so families weren't gambling on open allowances. And we invested in project managers who work in the neighborhoods we build in — Woodland Hills, Tarzana, Encino, Sherman Oaks, and out through the Conejo Valley.

Today we're a California design-build company delivering detached ADUs, attached ADUs, above-garage units, JADUs, garage conversions, and full home additions across Greater Los Angeles, from Ventura to Long Beach — with a 5.0 rating from 27 reviews on our Google Business Profile that we've earned by treating every project like it's next door.

How we work

Four things we refuse to compromise on.

01
Design-build, one contract

Architecture, engineering, permits, and construction under one roof. One team accountable from first sketch to final walkthrough — no finger-pointing between designer and builder.

02
Permit coordination by jurisdiction

We coordinate permits with LADBS, LA County, Ventura County and the city building departments across Los Angeles and Ventura counties, and we review local ADU ordinances, setbacks, fire zones, and coastal overlays before we quote you.

03
Defined scope, transparent price

A detailed line-item proposal after design, with itemized allowances. Any change to scope or price goes through a written change order you approve first.

04
One project manager, regular updates

Every project gets a named project manager as your point of contact, with regular progress updates through construction.

The path here

How our practice took shape.

  1. Roots
    Rooted in the Valley

    Started with room additions and remodels across Woodland Hills, Tarzana, and Encino for neighbors and referrals.

  2. Focus
    All-in on ADUs

    California's ADU reforms opened the door. We built our practice around detached, attached, and garage-conversion ADUs for infill lots.

  3. Integrate
    Design-build under one roof

    Coordinated architecture, permitting, and construction so clients get one contract, one timeline, one accountable team.

  4. Today
    Greater Los Angeles

    Serving Los Angeles and southern Ventura County from our Woodland Hills HQ, with a coordinated team of PMs, designers, and trade partners.

Expertise

Every kind of ADU. Every kind of addition.

We only build one category of thing — additive residential square footage — and we build every version of it. That focus means our projects are scoped clearly and planned around local permit rules.

ADU types
Detached · Attached · Above-Garage · Junior
Additions
Room · Full home · Second-story pop-ups
Conversions
Garage · Attic · Basement · Bonus room
Codes
CA Title 24 · CALGreen · California Building Code
Permits
LADBS · LA County · LA and Ventura County cities · Ventura County RMA
Delivery
Design-build · Detailed written proposal
Where we build

Headquartered in Woodland Hills. Building across Greater Los Angeles.

Our shop and design studio sit on Buenaventura St in Woodland Hills, and we serve Los Angeles County and southern Ventura County from the same base.

San Fernando Valley & Calabasas
  • ●Woodland Hills
  • ●Tarzana
  • ●Encino
  • ●Sherman Oaks
  • ●Studio City
  • ●Calabasas
  • ●West Hills
  • ●Chatsworth
  • ●Northridge
  • ●Van Nuys
  • ●Reseda
  • ●Canoga Park
  • ●Winnetka
  • ●Porter Ranch
Westside, Coastal & South LA
  • ●Pacific Palisades
  • ●Santa Monica
  • ●Beverly Hills
  • ●Culver City
  • ●Brentwood
  • ●West LA
  • ●Malibu
  • ●Pasadena
  • ●Torrance
  • ●Long Beach
Conejo & Santa Clarita Valleys
  • ●Agoura Hills
  • ●Westlake Village
  • ●Oak Park
  • ●Thousand Oaks
  • ●Santa Clarita
  • ●Valencia
Southern Ventura County
  • ●Simi Valley
  • ●Moorpark
  • ●Camarillo
  • ●Oxnard
  • ●Ventura
Don't see your city? We take on projects across most of Los Angeles County and southern Ventura County — ask us.
"
HomeAdd built a detached ADU on our property and did an excellent job. From the beginning the team took the time to understand what we needed and helped us navigate the design and permitting process. They stayed on budget, communication was top-notch, and the final ADU is a perfect addition to our home.
Joe Benenhaley · Detached ADU · Woodland Hills
Ready when you are

Let's see what your lot can do.

Free property check — we review setbacks, utilities, and zoning and tell you honestly what's buildable, before you spend a dollar on plans.

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