Fast, Reliable Garage Conversion Contractor Across Hidden Hills
If you’re planning a garage conversion in Hidden Hills, expect two approvals before a single wall comes down: city building permits and the Hidden Hills Community Association architectural review. Most Hidden Hills garage conversions to livable space run $110,000 to $210,000, with attached conversions on the lower end and detached ADU conversions with fire-resistant materials on the higher end. Call (254) 602-5618 and we’ll give you a written price before any work starts.
We know Long Valley Road, Round Meadow Road, and the gated enclaves off Jed Smith Road. We know which 1960s ranch garages still have knob-and-tube wiring and which 1980s custom estates already have guest quarters that just need reclassification. That local knowledge changes how we price and plan, and it’s why Hidden Hills homeowners call our Garage Conversion Contractor team for straight answers.
Why Lodgewick ADU Builders Is Hidden Hills’s Preferred Garage Conversion Contractor Company
Lodgewick ADU Builders is the ADU company of the Kingswell family, established in 2010. We specialize in accessory dwelling units (ADUs, which are self-contained living spaces with their own kitchen, bath, and entrance), garage conversions, and home additions. Every Hidden Hills project operates under The Kingswell Guarantee: a written price before work begins, a defined arrival window, a clean job site, and a written guarantee on every job, including a free return visit if the work fails within the 365-day period.
Russ Delmar leads our team, and he’s the one who reviews every Hidden Hills bid before it reaches you. We’ve worked on garage conversions hidden behind horse barns off Saddle Creek Court, guesthouse reclassifications near the Hidden Hills Community Center, and emergency foundation repairs after Santa Ana wind seasons. Our crews are background-checked and uniformed, so you always know who’s on your property.
We answer our phones with a live person, 24/7. No voicemail loops. When a Hidden Hills homeowner has a question about an HHCA design submittal or a WUI materials requirement, they get a real answer.
Garage Conversion Permit in Hidden Hills
A Garage Conversion Permit in Hidden Hills is the combined city building department approval plus the Hidden Hills Community Association architectural review that must clear before construction starts, and it’s the step that trips up more projects than any other single thing. Homeowners can expect permit fees and plan-prep costs to run $6,000 to $15,000 depending on whether the conversion triggers a full Title 24 energy report, structural review, and residential fire-separation upgrades. The HHCA review runs on its own schedule and requires elevations, materials boards, and color samples.
Dual-Approval: City and HHCA
Hidden Hills is California’s only fully gated, incorporated equestrian city, and that means every conversion plan must clear two separate authorities. The city reviews structural, plumbing, electrical, and Title 24 compliance. The HHCA reviews design, materials, and aesthetics under a mandate that Cal. Civil Code §4751 preserved even though the HOA could not outright ban ADUs. Since neighboring Calabasas and Woodland Hills have no comparable second gate, Hidden Hills homeowners should budget an extra two to six months for this review cycle.
What a Permit Turns Up
Once walls are open, inspectors flag things the original bid never anticipated. Cloth-wrapped wiring from the 1960s, undersized 2×4 framing with termite damage, slab floors with no capillary break. A good contractor prices these as written allowances and gets owner sign-off before cutting lumber. We do exactly that on every Hidden Hills conversion.
Garage Conversion to Living Space in Hidden Hills
Garage Conversion to Living Space in Hidden Hills means taking an existing attached or detached garage and bringing it to residential occupancy standards, including insulation, drywall, heating and cooling, electrical service, and a proper foundation moisture barrier, typically at a cost of $110,000 to $190,000 depending on the garage’s condition and whether fire-resistant upgrades apply. Most Hidden Hills homes were built between the 1950s and 1980s, and their garages were never intended to be habitable space.
Attached Garage Conversions
Converting an attached garage is the most direct path to bonus space in Hidden Hills. These projects often require reframing the rear wall, relocating the water heater, and adding a proper fire-rated separation between the living space and any remaining storage area. Because the city is in a Cal Fire Wildland-Urban Interface zone, even attached conversions must meet ignition-resistant siding and ember-resistant vent requirements where walls face exterior exposure.
Detached Garage ADUs
A detached garage conversion in Hidden Hills is typically built as a full accessory dwelling unit, which under state law means a separate house with kitchen, bath, and sleeping area on the same lot as the main home. Detached ADUs here cost $160,000 to $210,000 because Cal Fire WUI rules demand Class A roofing, fire-rated walls on the side facing the main house, and ignition-resistant siding. Oversized HVAC is standard for detached structures sitting far back from the main home in the western San Fernando Valley’s summer heat, which routinely exceeds 100°F.
Trusted Brands We Service in Hidden Hills
Lodgewick works hands-on with leading prefab ADU manufacturers and materials suppliers including Cover, Dvele, and Mighty Buildings, then matches the right system to your lot, budget, and HHCA constraints. A factory-built panel system from Cover can satisfy the HHCA design review because materials and color options are standardized and documented. Dvele’s high-performance envelope works well for standalone ADUs on equestrian lots set far from the main house. Mighty Buildings’ prefab wall panels handle the Cal Fire WUI fire-resistance requirements inherent to Hidden Hills. We don’t just name-drop: our techs have installed these systems and can show you exactly what each costs installed, not just what the brochure quotes.
Common Garage Conversion Contractor Problems We See in Hidden Hills Homes
- Knob-and-tube and cloth-wrapped wiring: Homes built in the 1950s through the 1970s regularly still carry original wiring hidden inside walls and above ceilings. Opening walls for a conversion triggers a full electrical inspection, and that usually means a panel upgrade and home-run rewiring, a $12,000 to $25,000 item that reshapes the budget.
- HHCA review stall: The architectural committee must sign off on design, materials, and colors even though state law prevents it from banning the ADU outright. Miss this step and you sit for months while neighbors walk the plans. We’ve seen bids expire waiting on HHCA submittal corrections.
- Slab and moisture failures: Many older Hidden Hills garage slabs were poured with no capillary break or waterproofing, and the western San Fernando Valley’s winter rains push moisture up through the concrete. A conversion means cutting and patching the slab for plumbing, then adding a proper vapor barrier before flooring.
- WUI fire-material costs: Hidden Hills sits inside the Cal Fire Wildland-Urban Interface zone. Class A roofing, ember-resistant vents, and ignition-resistant siding add $15,000 to $30,000 over a comparable build in flatland Los Angeles, and skipping them fails inspection on the first pass.
Pricing for Garage Conversion Contractor in Hidden Hills, CA
A typical attached garage conversion in Hidden Hills runs $110,000 to $155,000. A detached garage-to-ADU conversion runs $160,000 to $210,000. Barn and stable conversions from agricultural structures start at $180,000 because they trigger full Title 24 energy compliance, residential fire separation, and plumbing stub-out work from scratch. Permit and plan costs add $6,000 to $15,000. WUI fire materials add $15,000 to $30,000. The wildcard is always what’s inside the walls, which is why our contracts include written allowances for rewiring, framing repair, and moisture mitigation, priced and approved in writing before we touch it. Call (254) 602-5618 for a written, line-item quote. Estimates are free.
We Also Serve Cities Near Hidden Hills
Lodgewick crews serve Hidden Hills and the surrounding area, including Los Angeles, Long Beach, Anaheim, and Riverside. Most of our Hidden Hills projects are scheduled from our Los Angeles office, with crews dispatched directly to your property so the same faces who priced your job are the ones building it.
Serving Hidden Hills, CA - Our Local Coverage Area
We’re based in the Hidden Hills area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Garage Conversion Contractor in Hidden Hills
Yes. Hidden Hills is a fully gated, incorporated city, and the HHCA’s architectural review committee must approve design, materials, and colors before or in parallel with the city’s building permit process. California Civil Code §4751 prevents the HHCA from banning ADUs outright, but does not remove the HOA’s authority over aesthetics. Expect to submit elevations, materials boards, and color samples, and budget two to six months for the review cycle. Call (254) 602-5618 and we’ll walk you through the exact submittal list.
Yes, and it’s not optional. Once a garage becomes habitable space, the city requires full Title 24 energy compliance covering insulation, windows, HVAC efficiency, and lighting. If you’re converting an unpermitted barn or stable, the trigger is even broader because those structures were never built to residential code. Budget $8,000 to $20,000 for Title 24 compliance depending on scope.
Yes. Hidden Hills sits inside the Cal Fire Wildland-Urban Interface zone, and the building department applies fire-resistant construction requirements to conversions, including ignition-resistant siding, ember-resistant vents, and Class A roofing where applicable. These materials add $15,000 to $30,000 over a comparable build outside the WUI zone. Call (254) 602-5618 for a written price that includes WUI materials.
The most common findings are cloth-wrapped or knob-and-tube wiring, undersized framing with termite damage at the sill plate, and slab floors with no capillary break. On a 1970s ranch home off Long Valley Road, our techs found all three plus a sub-panel that had been wired illegally decades earlier. Because we write these items as contract allowances and get owner sign-off in writing before cutting lumber, the owner knew exactly what each fix cost. Nothing was discovered after the fact.
Yes, and it’s a common path on Hidden Hills’s one-acre equestrian lots, but it’s rarely cheaper than new construction. Agricultural barns and stables were never built to residential code, so conversion triggers full Title 24 energy compliance, residential fire separation, plumbing stub-out work from scratch, and often structural upgrades. Budget $180,000 and up for a barn-to-ADU conversion. Call (254) 602-5618 for a site visit and written estimate.
Written by Russ Delmar, Owner at Lodgewick ADU Builders, serving Hidden Hills and surrounding communities since 2010.