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Master in Design — Tarzana home remodeling

THOUSAND OAKS, CA

ADU Construction in Thousand Oaks

Fully permitted backyard ADUs built by a licensed contractor serving the Conejo Valley since 1995 — design, permits, and construction all handled in-house.

Request a Free Estimate (855) 741-3167
Thousand Oaks Homeowners Are Adding ADUs — Is Your Property Ready? Large lots, aging homes, and new California laws have made ADU construction in Thousand Oaks one of the fastest-growing home improvement projects in the Conejo Valley. If your property has a deep backyard, a detached garage you barely use, or unused side yard space, you may be sitting on an opportunity to add a fully permitted living unit to your lot.   Master in Design builds ADUs throughout Thousand Oaks — from Lang Ranch and North Ranch to Wildwood, Newbury Park, and Conejo Oaks. We handle design, permits, construction, and inspections so you can focus on what your new space will be used for.   Most Thousand Oaks homes were built between the late 1950s and early 1990s (median build year 1978) — primarily single-family ranch-style homes on lots that are large by Southern California standards. That lot size is the key: many properties sit on 7,000 to 15,000+ sqft with backyards that can comfortably fit a detached ADU while leaving usable outdoor space, and neighborhoods like Lynn Ranch and Kevington are especially well-suited. Homeowners are building them for rental income, multi-generational living, a home office or studio, and the added property value a permitted ADU brings.

Remodeling Services in ADU Builder Thousand Oaks

Master in Design manages every phase of your ADU project — from the initial site evaluation through final inspection, our team handles design, engineering, permit submission, construction, and all mechanical systems including plumbing, electrical, and HVAC. We build detached ADUs, attached ADUs, garage conversions, and JADUs, each customized to your property's layout and your goals. For a full breakdown of ADU types and our construction process, visit our main ADU construction page.   Thousand Oaks has its own Building Division that handles ADU permits — separate from LADBS. The city enacted Ordinance 1732-NS in November 2024, aligning local rules with California state law. The key points:   Size limits — Detached ADU up to 1,200 sqft; attached ADU up to 50% of the primary dwelling or 1,200 sqft (whichever is less); JADU up to 500 sqft.   Setbacks and height — 4-foot minimum from rear and interior side property lines; detached ADUs limited to 16 feet in height (exceptions may apply).   Approval timeline — State law requires approval of compliant applications within 60 days, though most homeowners should plan for 3-4 months from application to permit issuance.   Parking — No additional parking is required for ADUs within half a mile of a transit stop.   We'll evaluate your property and handle the entire permit process for you. Financing options are available to help fit your ADU into your budget without delaying the project.

Why ADU Builder Thousand Oaks homeowners hire Master in Design

Master in Design is headquartered in Tarzana — just a short drive from Thousand Oaks through the Conejo Grade. We've been serving Southern California homeowners since 1995, and our team knows the Ventura County permit process inside and out.   Licensed and insured general contractor   In-house design team — custom plans, not cookie-cutter templates   We handle all permits through the Thousand Oaks Building Division   Over 20 years of experience — with owner Avi "Danny" Vaknin leading every project   Project guarantee — one of the few contractors in the region that guarantees their work   Our kitchen remodeling team handles the interior finishes for every ADU, ensuring the same quality inside your unit as you'd expect in a full home remodel. Want to know what's possible on your Thousand Oaks property? Call Master in Design at (855) 741-3167 or request a free estimate online — we'll assess your lot, walk you through your options, and give you a clear cost breakdown. No pressure, no obligation.

Neighborhoods we serve in ADU Builder Thousand Oaks

We build ADUs throughout Thousand Oaks and the Conejo Valley, including:

  • Lang Ranch
  • North Ranch
  • Wildwood
  • Newbury Park
  • Conejo Oaks
  • Lynn Ranch
  • Kevington

ADU Builder Thousand Oaks Remodeling FAQ

How big of an ADU can I build in Thousand Oaks?

Thousand Oaks allows detached ADUs up to 1,200 sqft.

Attached ADUs can be up to 50% of your primary dwelling's living area or 1,200 sqft, whichever is less, and a JADU (junior ADU) can be up to 500 sqft.

Detached ADUs are also limited to 16 feet in height, though exceptions may apply.

With many Thousand Oaks lots ranging from 7,000 to 15,000+ sqft, most properties have room for a full-size unit.

Do I need a permit to build an ADU in Thousand Oaks?

Yes. Thousand Oaks has its own Building Division that handles ADU permits — separate from LADBS. The city enacted Ordinance 1732-NS in November 2024, aligning local rules with California state law.

We evaluate your property and handle the entire permit process for you, from plan submission through inspections.

How long does it take to get an ADU permit in Thousand Oaks?

California law requires cities to approve compliant ADU applications within 60 days.

In practice, most Thousand Oaks homeowners should plan for 3 to 4 months from application to permit issuance, depending on plan check workload and any required corrections.

We manage the whole process to keep it moving.

What are the setback and parking rules for a Thousand Oaks ADU?

Attached and detached ADUs require a 4-foot minimum setback from the rear and interior side property lines, though front and street-side setbacks may be greater depending on your lot.

No additional parking is required for ADUs located within half a mile of a transit stop. We confirm exactly what applies to your specific property before design begins.

What does an ADU cost to build in Thousand Oaks?

Cost depends on build type, size and layout, site work, interior finishes, and city fees.

Garage conversions typically cost less than new detached construction, and a 500 sqft studio costs less than a 1,200 sqft two-bedroom unit.

Grading, utility distances, and soil conditions also vary across neighborhoods. We provide detailed, line-item estimates so there are no surprises.

What types of ADUs do you build?

We build detached ADUs, attached ADUs, garage conversions, and JADUs (junior ADUs) — each customized to your property's layout and your goals, whether that's rental income, multi-generational living, or a home office.

Do you offer financing for ADU construction?

Yes. Master in Design offers financing options to help Thousand Oaks homeowners fit an ADU into their budget without delaying the project.

Are you local to Thousand Oaks?

Master in Design is headquartered in Tarzana — just a short drive from Thousand Oaks through the Conejo Grade.

We've been serving Southern California homeowners since 1995 and know the Ventura County permit process inside and out.

We're a licensed and insured general contractor with an in-house design team and over 20 years of experience led by owner Avi "Danny" Vaknin.

Which Thousand Oaks neighborhoods do you serve?

We build ADUs throughout Thousand Oaks and the Conejo Valley, including Lang Ranch, North Ranch, Wildwood, Newbury Park, Conejo Oaks, Lynn Ranch, and Kevington.

Also serving the San Fernando Valley

An ADU isn't the only way we add space and value to your home. Explore our other Thousand Oaks services:

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Start your ADU Builder Thousand Oaks remodel

Get an honest scope and schedule from a CSLB-licensed design-build team that lives 5 to 30 minutes from your home.

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