Service Area · Ventura County
General Contractor in Thousand Oaks, CA
Custom homes, ADUs, additions and new garages across the Conejo Valley, planned around oak tree protections, HOA review in master-planned neighborhoods and the fire rules on lots that meet open space.
- Licensed California general contractor
- Custom homes, ADUs & additions
- Permits with the City of Thousand Oaks
- Written, line-item estimates
Thousand Oaks, CA
Your Thousand Oaks Builder for Homes, ADUs and Additions
Simply Construction is a general contractor in Thousand Oaks for homeowners planning the big projects: a custom home, a backyard ADU, a garage conversion, a room addition, a second story or a new garage. We are a licensed California general contractor, and each project runs from the first site walk through city approvals, construction and a signed-off final inspection.
Building in the Conejo Valley has its own rhythm. The city takes its native oaks seriously, many neighborhoods answer to an HOA before the city ever sees plans, and homes on the edge of open space face fire requirements that a flat interior lot never will. We identify which of those apply to your property before any design money is spent.
What We Build Here
Our Services in Thousand Oaks
Every project below is planned, permitted and built by one licensed team. Choose a service to see how it works in Thousand Oaks.
Custom Home Building in Thousand Oaks
Custom homes in Thousand Oaks tend to land on hillside lots in North Ranch, on parcels that back onto open space, or on older lots where a dated ranch house is coming down. Each brings its own review: native oak protections, grading and soils work on slopes, fire requirements near open space, and HOA design approval where a master plan governs the neighborhood.
ADU Construction in Thousand Oaks
A backyard ADU works well on many Thousand Oaks lots, particularly behind the single-story ranch homes of the older neighborhoods. The city applies its own ADU ordinance on top of state law, and state rules guarantee room for at least an 800 square foot unit with 4-foot side and rear setbacks. We check the lot, the HOA documents and nearby oaks before design.
Garage Conversions in Thousand Oaks
Attached two-car garages are standard on many Thousand Oaks homes built from the 1960s onward, and they can become a permitted ADU or junior ADU. State law drops the replacement parking requirement when a garage becomes an ADU. We handle insulation, egress, fire separation and utilities, plus the HOA review that a new street elevation usually needs in master-planned tracts.
Room Additions in Thousand Oaks
Single-story ranch homes on the city's older streets are natural candidates for a ground-floor addition, whether a primary suite, a bedroom wing or a larger family room. We plan footings around any protected oak's root zone, carry the existing low roofline and exterior across, and bring the electrical and mechanical systems up to serve the new space.
Second-Story Additions in Thousand Oaks
Going up can add bedrooms without losing yard on the tighter tract lots of Newbury Park and central Thousand Oaks. Before design, a structural engineer checks the existing foundation and framing, and we read the HOA's guidelines on height and views, which can decide whether a second story is realistic in a given neighborhood.
Garage Construction in Thousand Oaks
New detached garages, workshops and garage and ADU combinations fit best on larger Thousand Oaks lots, from established ranch-home neighborhoods to estate properties in North Ranch. We plan for driveway grades, oak root zones and fire department access, so the new building suits the lot and moves through city and HOA review without redesign.
Whole-House Remodeling in Thousand Oaks
A whole-house remodel suits the ranch homes built as Thousand Oaks grew, which may still carry original wiring, windows and closed floor plans. We open the layout where the structure allows, replace aging systems and bring insulation and glazing up to current Title 24 standards, all coordinated under one permit and one schedule.
Kitchen Remodeling in Thousand Oaks
Kitchen remodels in Thousand Oaks often center on connecting the kitchen to the family room and the view out back. We handle wall removal with proper engineering, new plumbing and gas routing, electrical upgrades for modern appliances and the city permit, plus HOA approval when windows or exterior doors change.
Bathroom Remodeling in Thousand Oaks
Conejo Valley bathrooms we rebuild range from dated hall baths to full primary suites, and we also build the baths inside new ADUs and conversions. Tile goes over a real waterproofing membrane, fans are ducted to the outdoors, and the plumbing and electrical work is permitted and inspected by the City of Thousand Oaks.
Fire Rebuilds in Thousand Oaks
Homes on the edges of the Conejo Valley's open space sit in mapped fire hazard areas, and the region knows what a wind-driven fire can do. When a home is lost or damaged, we rebuild to current wildfire construction standards with ignition-resistant materials, and we coordinate the fire department's access and vegetation requirements with the building permit.
Junior ADUs (JADU) in Thousand Oaks
A junior ADU of up to 500 square feet inside the home or an attached garage suits Thousand Oaks families who want space for a parent or adult child without building in the yard. An efficiency kitchen is the minimum, and the property owner must occupy one of the two living spaces.
SB 9 Lot Splits & Duplexes in Thousand Oaks
SB 9 can allow two units or a lot split on qualifying single-family lots, but it excludes very high fire hazard severity zones unless the required fire mitigation is in place. In Thousand Oaks, where many lots meet open space, checking the fire map comes first, and construction follows only after the lot clears and the city signs off on plans.
Patios, Decks & Outdoor Living in Thousand Oaks
Thousand Oaks backyards often look out over hills and open space, and a well-built patio cover, deck or outdoor kitchen makes the most of that. Near open space we favor ignition-resistant materials and noncombustible decking, and we keep structures clear of oak root zones and within HOA design rules.
Local Knowledge
Building in Thousand Oaks and the Conejo Valley
Thousand Oaks fills the Conejo Valley in eastern Ventura County, with the Santa Monica Mountains rising to the south and the Simi Hills to the northeast. Most of the city grew as a suburb in the second half of the twentieth century, so the housing runs from single-story ranch homes on the older streets to the stucco and tile houses of later master-planned communities such as Lang Ranch and Dos Vientos in Newbury Park. North Ranch, on the Westlake side, is known for larger custom homes on hillside lots.
Much of the city backs onto protected open space, with trails and ridgelines woven between neighborhoods. That is a large part of the appeal, and it is also why fire hazard mapping, brush clearance and fire department access come up so often in planning here. The Woolsey Fire of 2018 made those rules feel very concrete for Conejo Valley families.
Addresses inside city limits are permitted through the City of Thousand Oaks Community Development Department. Nearby unincorporated areas, including Oak Park and Lake Sherwood, go through Ventura County instead, and the separate city of Westlake Village, across the county line in Los Angeles County, has its own rules.
Why Choose Us
Why Thousand Oaks Homeowners Choose Simply Construction
Contracts Written the Way California Law Requires
California caps a home improvement down payment at $1,000 or 10 percent of the contract price, whichever is less, and after that a contractor may only bill for work completed or materials delivered. Our contracts follow that structure: a line-item scope, a payment schedule tied to finished milestones, and written change orders before any extra work begins. You always know what you are paying for and why.
Permits Handled With the City of Thousand Oaks
Most delays on large residential projects start at the permit counter. We prepare the drawing set, coordinate structural and Title 24 energy calculations, answer plan-check comments and schedule inspections with the City of Thousand Oaks, so you are not the one chasing corrections. For ADUs, state law requires the agency to act on a complete application within 60 days, and a complete, well-coordinated submittal is what starts that clock.
Written, Line-Item Estimates
Before you commit, you receive a written estimate that breaks the project into its real parts: design and engineering, permit and utility fees, foundation, framing, systems, finishes and site work. Allowances are named and priced, so you can see where your selections move the budget. If the scope changes, the numbers change on paper first, never as a surprise on the final invoice.
Nearby Service Areas
We Also Build Near Thousand Oaks
FAQ
Building in Thousand Oaks: Common Questions
Does the City of Thousand Oaks or Ventura County issue my permit?
It depends on whether the address is inside city limits. Most of Newbury Park, along with Lang Ranch, Dos Vientos, North Ranch and the Thousand Oaks side of Westlake, is in the city and goes through its Community Development Department. Oak Park and Lake Sherwood are unincorporated and go through Ventura County, while the separate city of Westlake Village sits in Los Angeles County. We confirm jurisdiction first.
How do oak trees affect building in Thousand Oaks?
The city protects its native oaks, and work that removes an oak or intrudes on its root zone needs city approval, typically supported by an arborist's report. Foundations, trenches, driveways and equipment staging can all count. We map oaks on the survey first and design around them, which is usually simpler than seeking permission to remove one.
Will my HOA need to approve my project?
In many Thousand Oaks neighborhoods, yes. Master-planned communities such as Lang Ranch, Dos Vientos and North Ranch have associations with architectural review for exterior changes. Our team studies the governing documents at the outset and assembles the package the committee expects, so association approval and city plan check move in parallel.
How do I know whether fire hazard rules apply to my property?
Homes that border the Conejo Valley's open space and hillsides are often in mapped fire hazard severity zones. That can mean ignition-resistant construction, defensible space requirements and fire department review of access and water supply. We check your parcel against the CAL FIRE maps at the start so the design accounts for it.
Start Your Project
Start Your Thousand Oaks Project
Tell us what you are planning. We will visit the property, talk through options and costs, and send a written, line-item estimate.
Licensed California General Contractor · CSLB [CSLB LICENSE # PLACEHOLDER]