Hidden Hills's Trusted
Whole-Home Remodeling Experts

Hidden Hills is a small incorporated city within LA County, but it doesn't run its own Building & Safety department — it contracts building services to LA County. Permits and inspections for a Hidden Hills whole-home remodel route through LA County Public Works Building & Safety, with zoning and site design review through City of Hidden Hills Planning. Whole-home scope with exterior work also routes through the Hidden Hills Community Association (HHCA) architectural review per the community's CC&Rs; any change visible from common areas, the gates, or the equestrian trail corridor goes through HHCA. Hillstar coordinates County + City + HHCA tracks in parallel so the project moves on one timeline.

Unlike a pure interior kitchen or bathroom remodel, a whole-home remodel in Hidden Hills usually touches the exterior — new windows or altered fenestration, stucco recoloring, siding or cladding changes, roof replacement, front-yard hardscape reconfiguration, entry-gate redesign, or landscape integration. Significant exterior-visible changes on R-1 single-family properties commonly trigger Hidden Hills Community Association (HHCA) architectural review review and/or the city's Single-Family Residential design-review pathway, depending on the specific scope. We identify which pathway applies at the design phase and manage the submissions so the homeowner isn't coordinating between city departments.

For properties designated as local landmarks or carrying a landmark-property contract, Hidden Hills has a LA County Historic Preservation review that reviews work affecting historic character — which can include exterior and sometimes specific interior features depending on the designation. Many Hidden Hills Flats Spanish Colonial Revival, Mediterranean, and notable Hollywood Regency homes fall into this category. Non-designated properties don't trigger historic review even for a full remodel. We confirm the designation status of every Hidden Hills address at the initial site visit so the preservation pathway is flagged before design decisions are locked in.

Hidden Hills maintains a protected-tree ordinance covering mature specimen species — oak, sycamore, and certain other natives — that requires tree-protection planning before construction staging, foundation work, or utility trenching that could affect root zones. Front-yard setbacks, lot-coverage limits, and floor-area-ratio rules for R-1 properties also shape what's buildable on a whole-home scope. On the interior community blocks lots and other hillside blocks, additional grading and slope-design standards layer on top. We pull the protected-tree survey and zoning envelope for every Hidden Hills address at the design phase so the scope stays inside what's actually permissible.

For targeted scope — one wing, one floor, a kitchen-plus-primary-suite phase — yes, routinely. We use dust barriers, seal off active construction zones, protect finished areas, keep the jobsite clean at end of day, and sequence trades so at least some portion of the home stays livable. For true whole-home scope that pulls plumbing, electrical, and HVAC back to rough-in across every room, most Hidden Hills homeowners either relocate for the active-construction phase or plan a livable-wing phasing strategy with us at the start. We walk through both options at the consultation so the decision is made with realistic expectations, not mid-build surprise.

Cost and scope depend on project size, design, property conditions, permits, materials, finish level, and any local-jurisdiction or historic-district coordination that applies. We review every option with you at the consultation and provide an itemized written cost breakdown so the design aligns to your priorities.