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General Contractor in Castaic — 32 Services, One Licensed LA Builder

Castaic is LA County unincorporated territory north of Santa Clarita; most hillside parcels sit in the Very High Fire Hazard Severity Zone with LACDPW plan-check. ZIP 91384 · LA County Unincorporated (not LADBS).

ZIP
91384
Permit authority
LA County Unincorporated (not LADBS)
Typical lot
8,000 sqft
LA County tier
2% above LA County median
Very High Fire Hazard zoneHillside ordinance

Chat about your Castaic project

Pre-seeded for Castaic. Mention your lot, your timeline, and any known constraints — Baily factors the la permit queue and WUI fire-zone into the scope.

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Every service we scope in Castaic

All 32 NP Line Design service lines, priced for the Castaic market. Each one opens a Baily chat pre-seeded with Castaic-specific overlays, lot assumptions, and permit-queue context.

Whole-home & additions

Whole-home renovation in Castaic
$153K–$816K · 16–40 wk
Gut renos, whole-house upgrades, multigenerational reconfigurations.
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Room additions in Castaic
$87K–$388K · 12–28 wk
Second stories, primary suite additions, detached office pods.
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New home construction in Castaic
$459K–$2.5M · 36–72 wk
From empty lot to keys — permit-aware, coastal-commission ready.
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Custom home design in Castaic
$510K–$3.6M · 36–80 wk
Ground-up custom residential — design, permit, build under one roof.
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Preconstruction design-build in Castaic
$5K–$51K · 2–8 wk
Budget + schedule + permit pathway validated before you commit.
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Hillside construction in Castaic
$204K–$918K · 24–50 wk
Slope, geotech, caisson foundations — hillside ordinance expertise.
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Kitchens & bathrooms

Kitchen remodeling in Castaic
$46K–$184K · 6–14 wk
AI-scoped kitchens — real LA labor + materials, Title 24 compliant.
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Bathroom remodeling in Castaic
$26K–$87K · 4–10 wk
Spa bathrooms, walk-in showers, master suites — scoped in minutes.
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Luxury interior design in Castaic
$82K–$510K · 10–30 wk
High-end finishes, custom millwork, signature materials.
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Interior design in Castaic
$15K–$184K · 4–20 wk
Cabinetry, countertops, finishes — integrated with the build.
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Interior finishing in Castaic
$8K–$77K · 2–10 wk
Drywall, trim, millwork, paint — the final 15% that matters.
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ADUs & garage conversions

ADU construction in Castaic
$184K–$459K · 20–36 wk
AI-scoped ADUs — permit-aware for AB 1033, SB 9, and LA by-right rules.
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Garage conversion in Castaic
$92K–$224K · 12–24 wk
Detached or attached garage → livable ADU, AB 1033 ready.
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Garage remodeling in Castaic
$8K–$46K · 2–6 wk
Storage systems, workshop build-outs, modernization.
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Pool house design in Castaic
$46K–$286K · 8–24 wk
Cabanas, guest structures, detached wellness pavilions.
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Disaster & resilience

Wildfire rebuild in Castaic
$306K–$1.2M · 24–60 wk
Palisades, Eaton, SB 1103 — we've rebuilt through every fire zone.
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Water damage restoration in Castaic
$5K–$87K · 1–12 wk
Flood, leak, mold remediation — insurance-approved.
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Seismic retrofit in Castaic
$12K–$66K · 2–8 wk
Soft-story, hillside ordinance, cripple-wall — LA seismic code baked in.
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Roofing in Castaic
$15K–$82K · 1–4 wk
Class A fire-rated, cool roof, re-roof, new construction.
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Exteriors, pools & landscape

Exterior design in Castaic
$18K–$122K · 3–12 wk
Siding, cladding, facades, curb-appeal reworks.
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Pool & spa construction in Castaic
$66K–$255K · 10–24 wk
Pools, spas, water features — permit + safety compliant.
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Patio covers & pergolas in Castaic
$6K–$46K · 2–6 wk
Shade structures, outdoor rooms, pergola + cover combos.
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Landscape design in Castaic
$15K–$184K · 4–16 wk
Defensible space, irrigation, drought-tolerant, full yards.
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Concrete & outdoor living in Castaic
$8K–$122K · 2–10 wk
Patios, driveways, hardscape, outdoor kitchens.
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Finishes, systems & specialty

Flooring in Castaic
$5K–$66K · 1–4 wk
Hardwood, tile, vinyl, terrazzo — installed on our job sites daily.
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Epoxy flooring in Castaic
$3K–$18K · 1–2 wk
Garage floors, industrial spaces, showroom-grade coatings.
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Painting in Castaic
$3K–$36K · 1–3 wk
Interior, exterior, specialty coatings, eco-paint.
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Window & door replacement in Castaic
$8K–$87K · 1–4 wk
Title 24 compliant, fire-zone rated, energy rebate-eligible.
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Green building in Castaic
$8K–$122K · 1–8 wk
Title 24, heat pumps, EV chargers, solar, net-zero upgrades.
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Architectural design in Castaic
$8K–$122K · 4–20 wk
Design-build integrated — CAD, elevations, permit sets in-house.
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General construction in Castaic
$10K–$2.0M · 1–80 wk
Hub for all 32 services — one licensed GC across the full project.
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Commercial construction in Castaic
$102K–$2.0M · 12–50 wk
Retail, office, TI, mixed-use — permit-aware LADBS + LACity.
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Permit authority in Castaic

Residential permits in Castaic route through the LA County Unincorporated (not LADBS). Plan-check typically runs 4–10 weeks for an addition and 8–14 weeks for a new build, with soft-story, hillside-grading and Title 24 sub-permits pulled alongside the master building permit.

Regulatory overlays that apply here

Very High Fire Hazard Severity Zone — Castaic parcels fall inside the state VHFHSZ map, which triggers California Building Code Chapter 7A (ignition-resistant construction). Class A fire-rated roofing, 1-hour exterior walls, ember-resistant vents, tempered-glass windows, and a 5-foot non-combustible perimeter (Zone 0) are mandatory on new builds and substantial remodels.
Hillside ordinance — sloped lots in Castaic trigger LA Municipal Code §12.21 C.10 (hillside ordinance) or the equivalent local ordinance: geotechnical review, haul-route permitting for soil export, ASCE 7 seismic design category re-analysis, and setback scaling by natural slope. For many additions this is the single biggest schedule driver.
Origin

Who is Baily?

Baily is named after Francis Baily — an English stockbroker who retired at 51, became an astronomer, and in 1836 described something on the edge of a solar eclipse that nobody had properly articulated before: a string of bright beads of sunlight breaking through the valleys along the moon’s rim.

He wasn’t the first to see them. Edmond Halley saw them in 1715 and barely noticed. Baily’s contribution was clarity — describing exactly what was happening, in plain language, so vividly that the whole field of astronomy paid attention. The phenomenon is still called Baily’s beads.

That’s what we wanted our AI to do. Every inbound call and text has signal in it — a homeowner’s real question, a timeline, a budget, a hesitation that means “yes but.” Baily listens to every one, 24/7, and finds the beads of light.

Baily was a businessman before he was a scientist. That’s our vibe too.

Questions LA homeowners actually ask

Nearest neighborhoods

Adjacent LA markets we work in. Same licensed team, different overlay mix.

Valencia
ZIP 91355
7,500 sqft typical · 2% above LA County median
Saugus
ZIP 91350
7,500 sqft typical · 2% above LA County median
Stevenson Ranch
ZIP 91381
7,500 sqft typical · 2% above LA County median
Santa Clarita
ZIP 91355
8,000 sqft typical · 2% above LA County median
Newhall
ZIP 91321
7,000 sqft typical · 2% above LA County median

Related resources

Guides, cost tables, and decisions to make before you call.

Service menu
All 32 LA services
Full project-type directory
Guide
LADBS permit process
How plan-check actually works
Guide
Wildfire rebuild (SB 1103)
Relevant to Castaic overlays
Cost guide
Kitchen cost — all 167 LA neighborhoods
Updated 2026