ADU Builder in Thousand Oaks, CA
Searching for ADU builder in Thousand Oaks? HMO Construction builds across Thousand Oaks and greater Los Angeles — licensed, bonded, and insured, with fixed written pricing and free estimates.
ADU Builder in Thousand Oaks
Detached and attached accessory dwelling units — also known as granny flats or in-law suites — from design and permit through framing, utilities, and final walkthrough. We handle the LADBS permit path and JADU/ADU code so your unit is rentable and inspection-ready.
We extend into the Conejo Valley for larger projects. Every Thousand Oaks project is run by one team from drawings to final walkthrough — no subcontractor runaround, no surprise pricing.
What's included
- Detached, attached & garage-conversion ADUs
- Design, drawings & city permit handling
- Full utilities: water, sewer, electrical sub-panel
- Title-24 energy compliance & inspections
- Rentable, move-in-ready finish
Why Thousand Oaks homeowners choose HMO Construction
We're a full-service general contractor based nearby in Reseda, so we know Thousand Oaks permitting, inspectors, and lot conditions. You get fixed written pricing before work starts, and we'll beat any legitimate estimate in town.
ADU Builder in Thousand Oaks — FAQ
How much does an ADU cost in Thousand Oaks?
Most Thousand Oaks ADUs run about $150k–$350k depending on size, site work, and finishes. After a free on-site visit we give you fixed written pricing — no surprises — and we’ll beat any legitimate quote.
How long does it take to build an ADU in Thousand Oaks?
Plan on roughly 2–4 months for design and permits in Thousand Oaks, then 3–5 months of construction. We manage the LADBS/city path so it keeps moving.
Do I need a permit for an ADU in Thousand Oaks?
Yes. ADUs require permits — we handle the drawings, submittal, and inspections for your Thousand Oaks property so the finished unit is legal and rentable.
Is an ADU the same as a granny flat in Thousand Oaks?
Yes — "granny flat," "in-law suite," and "ADU" all mean the same accessory dwelling unit under California and Thousand Oaks code. We build all three types: detached, attached, and garage-conversion.
Permits in Thousand Oaks
Thousand Oaks is an incorporated city in Ventura County, so permitting runs through the City of Thousand Oaks — not through Los Angeles County or LADBS. Different code adoption cycle, different fee schedule, different inspectors. We handle the filing and the plan-check corrections.