Professional General Contractor in Simi Valley
H&A My Design is a licensed, family-owned general contractor in Simi Valley, with completed work nearby in Thousand Oaks and in West Hills just over the Santa Susana Pass, and more than 20 years of design-build experience. Serving Simi Valley and the surrounding areas.
Licensed & bonded California general contractor — CSLB #999603. Showroom at 6723 Variel Avenue, Canoga Park.
Homes And Projects In Simi Valley
Simi Valley grew quickly in the second half of the twentieth century, and much of its housing is suburban tract homes on regular lots, with newer planned communities such as Wood Ranch and Big Sky and hillside streets around the valley edges.
Common Simi Valley Projects
Regular lots and solid tract construction make Simi Valley a practical place to add space and modernise:
- Detached ADUs and garage conversions
- Single-storey and second-story additions
- Kitchen and open-plan remodels
- Whole-home renovations
- Outdoor living and covered patios
Heat, Hills And Associations
Inland summers run hot, some neighbourhoods have associations with architectural review, and homes on the valley edges can fall within designated fire hazard areas.
Designing For The Heat
Orientation, shading, insulation and glazing get real attention in design, not just the Title 24 minimum.
HOA Communities
In planned communities, exterior changes usually need association approval before permits.
Our Services In Simi Valley
Every service below is designed, permitted and built by the same licensed team.
ADUs
Detached units, attached builds and garage conversions, designed around what your lot allows.
Home Additions
Room, second-story and master suite additions that sit naturally with the existing house.
Major Remodeling
Kitchens, bathrooms and whole-home renovations, with structure and systems handled properly.
New Construction
Ground-up custom homes, from the first lot survey to final sign-off.
Structural Remodeling
Bearing walls, beams and ceiling raises, engineered and permitted.
Permits For Simi Valley Projects
Simi Valley is a separate city in Ventura County with its own building and safety division, so plans are reviewed by the City of Simi Valley. Unincorporated areas nearby are permitted by the County of Ventura.
What Review Covers
We prepare the drawings, calculations and energy packet to the city’s requirements, handle any HOA review, answer corrections and schedule inspections.
- Zoning and setbacks
- HOA architectural review where it applies
- Fire hazard area requirements
- Structural and Title 24 plan check
- Milestone inspections
ADUs In Simi Valley
State ADU law sets the baseline, and the city applies its own standards on top. As your general contractor in Simi Valley we check lot size, setbacks, utilities and any HOA guidelines during discovery.
How A Project Runs In Simi Valley
The same six stages on every job, adjusted to the local permit route.
Discovery
Site visit, lot survey, zoning and setback check.
Architecture
3D design, floor plans and finish direction.
Engineering
Structural drawings and Title 24 energy packet.
Selections
Permit expediting while you choose finishes.
Construction
In-house crews, inspected at every milestone.
Completion
Final sign-off, punch list and key handover.
Recent Projects Near Simi Valley
Completed work nearby in Thousand Oaks, Agoura Hills and West Hills.
Why Homeowners In Simi Valley Choose Us
What you get when H&A My Design is your general contractor in Simi Valley.
One contract, one team
Design, engineering, permits and construction handled together, with one point of contact.
Licensed and bonded
California general contractor, CSLB #999603, fully bonded and insured.
In-house trades
Framing, MEP trades and custom carpentry by our own crews, inspected at every milestone.
Close by
Our Canoga Park showroom is just over the Santa Susana Pass from Simi Valley.
A showroom to decide in
Cabinetry, stone, tile and fixtures chosen in person at our Canoga Park showroom.
Simi Valley Neighbourhoods And Nearby Areas
As a general contractor in Simi Valley we work across the city and in the neighbouring communities of the east county and west Valley.
Around Simi Valley
Simi Valley neighbourhoods and nearby communities include:
- Wood Ranch
- Big Sky and the northern hills
- Central Simi Valley
- Moorpark to the west
- Chatsworth and West Hills over the pass
Nearby Service Areas
We also build in Thousand Oaks, Canoga Park, across Ventura County and the San Fernando Valley. Every area is on our service areas page.
Planning A Project In Simi Valley
For many Simi Valley homeowners the question is how to add space to a solid, well-kept tract house without making it feel bolted on.
ADU, Addition Or Second Story
Regular lots often allow any of the three. A detached ADU keeps the main house untouched; a rear addition is usually simplest; a second story keeps the garden but needs structural work. We compare them on your lot with real numbers.
Making It Match
Roof pitch, stucco texture, window proportions and trim are designed to match the original house, so the new space looks as though it was always there.
Selections Early
Finishes are chosen at our showroom while the plans are in review, so construction starts with every decision made.
Start Your Simi Valley Project
Book a site visit and we will walk your property, check what the lot allows and explain how we would work as your general contractor in Simi Valley.
General Contractor In Simi Valley: Common Questions
Who issues building permits in Simi Valley?
The City of Simi Valley, for addresses inside the city. Unincorporated areas nearby are permitted by the County of Ventura. We confirm which applies at discovery.
Can I build an ADU in Simi Valley?
Many lots can take a detached ADU or garage conversion. We check lot size, setbacks, utilities and any HOA guidelines during discovery.
Can you make an addition match my tract home?
Yes. Roof pitch, stucco texture, windows and trim are designed to match, so the addition reads as part of the original house.
How do you deal with the inland heat?
We plan orientation, shading, insulation and glazing during design, and size heating and cooling for the new space rather than just meeting the minimum.
How long does a project take?
Permit review typically takes around six to fourteen weeks. Garage-conversion ADUs typically take three to five months to build, and detached ADUs or major additions five to eight months.
Why hire a design-build general contractor in Simi Valley?
A design-build general contractor in Simi Valley designs, permits and builds under one contract, so the budget is checked as the drawings develop.
Do I need HOA approval in Wood Ranch or Big Sky?
If your home is in an association, exterior changes usually need its approval before permits. We prepare the drawings and materials for that review.
Where is your showroom?
Our showroom and headquarters are at 6723 Variel Avenue, Canoga Park, CA 91303. Visits are by appointment, so call 800-285-3002 before you come.
Which other areas do you cover?
We work throughout Los Angeles, the San Fernando Valley, Sherman Oaks, Encino, Tarzana, Woodland Hills, Calabasas, Westlake Village, Pasadena, Glendale, Culver City, the South Bay, Santa Clarita Valley, Ventura County, Thousand Oaks, Beverly Hills, West Hollywood, Santa Monica, Malibu, Agoura Hills, Simi Valley, Burbank, Granada Hills, Canoga Park, Reseda and the surrounding areas.
Nearby Service Areas
Homeowner Experiences
Hear directly from Southern California clients who trusted H&A My Design with their custom homes, ADUs, and additions.
Walk the finished home — navy kitchen with brass fittings, an open living space and a new double-vanity bathroom.
“We’re extremely happy with the results. Without a shadow of doubt, we’ve already recommended them to other neighbors.”
“Everybody was phenomenal to work with, a pleasure to have. Totally fair and wonderful company and great family.”
“H&A made the entire process transparent. Having one GC manage blueprints, city permits, and the build was night and day.”
“Their Canoga Park showroom made selecting our cabinets, quartz, and fixtures so easy. Finished right on schedule.”
“Converted our garage into a 2-bedroom rental. Flawless craftsmanship and leased immediately after final inspection.”
See the full before and after — the original kitchen, the opened-up living space and the finished bathrooms.
“From 3D plans to final city sign-off, H&A handled everything. No surprise change orders, no stress.”
“Built a modern ADU for my parents. The accessibility and aesthetic details exceeded all our expectations.”
Serving Southern California
Licensed throughout Los Angeles & Ventura Counties. HQ Showroom at 6723 Variel Ave, Canoga Park, CA.
MORE SPACE.
MORE VALUE.
Design, permits, showroom selections, and master construction—managed by one accountable team.