Altadena Fire-Damage Rebuild — 2,400 sqft Craftsman (18 weeks, $480K–$620K)

The house was a 2,400 sqft single-story Craftsman built in 1923, sitting on a 9,100 sqft parcel in LA County unincorporated Altadena — inside the Eaton Fire perimeter and within a Very High Fire Hazard Severity Zone under CalFire's updated FHSZ maps. The structure carried original old-growth Douglas fir framing, lath-and-plaster interior walls, and a pre-code knob-and-tube electrical layout that the homeowner had partially upgraded in the 1980s.

Post-fire assessment documented total loss of the main dwelling, detached garage, and a mid-century rear patio addition. The brick chimney and 4-inch concrete perimeter foundation survived with heat-checking. We coordinated with CalOES debris removal Phase 1 (household hazardous waste) and Phase 2 (ash, foundation, and hazard tree removal) through USACE contractors, which took seven weeks before we could stage the site for the rebuild.

Our first-pass scope for the carrier estimated at $423,000. After a full Xactimate line-item walk with our insurance adjuster partner, we filed a supplemental for knob-and-tube abatement, Chapter 7A envelope upgrades, and Title 24 2025 compliance — the carrier approved an additional $127,000, bringing total approved claim to $550,000 before homeowner upgrades.

The owners had owned the parcel for 31 years. Insurance was an HO-3 policy with an extended-replacement-cost endorsement at 150% — a coverage structure that turned out to be decisive. Without the 150% endorsement, the carrier would have paid dwelling limit ($412,000) and no code-upgrade supplement, leaving a $140,000+ owner gap. The endorsement absorbed both the Chapter 7A WUI delta and the Title 24 2025 compliance delta without a single disputed line item.

We built the scope around the surviving slab and chimney where code permitted reuse, and replaced every framing member in the structural envelope. Two assumptions were confirmed at our first site walk: the 1923 concrete slab met modern strength-of-materials requirements once heat-checked cracks were resolved, and the parcel's Alquist-Priolo status remained clear of fault-trace liability.

SB 1103 (2025) created a 30-day plan-check target for wildfire-destroyed single-family homes rebuilt within the original footprint on the original parcel. We filed the like-for-like rebuild package through LACDPW Altadena field office under SB 1103 and hit the 30-day window exactly — stamped permits in hand 28 calendar days after submittal.

The package ran through LACDPW rather than LADBS because Altadena is unincorporated Los Angeles County. Plan-check required a CalFire Defensible Space Inspection (CalFire PRC 4291), Alquist-Priolo fault map re-verification (the parcel is not on a fault trace, confirmed through California Geological Survey Bulletin 42), and a grading letter from our licensed civil engineer confirming the existing foundation met ASCE 7 Seismic Design Category D with minor supplementation.

A critical nuance: SB 1103 covers only like-for-like rebuilds. The homeowners wanted to add 180 sqft for a larger primary bathroom, which would have kicked the project into standard plan-check. We structured the 180 sqft as a deferred Phase 2 addition permit filed after the main rebuild COfO, which preserved the SB 1103 timeline for the primary structure.

LACDPW Altadena accepts electronic submittal through the Epic Land Management System portal. We uploaded 34 sheets — civil, structural, MEP, Chapter 7A envelope details, Title 24 CF1R-NCB, and the CalFire PRC 4291 defensible-space inspection report — in a single PDF bundle on day zero and paid the $4,800 plan-check deposit the same afternoon. First-pass plan-check came back with three correction items, all of them minor (a structural note clarification on shear-wall nailing pattern, a Title 24 input-range fix, and a civil-sheet grading arrow direction). We cleared all three in 48 hours.

California Building Code Chapter 7A governs construction inside Wildland-Urban Interface zones. On a full rebuild the requirements stack fast: Class A roof assembly, ignition-resistant siding, 1/8-inch mesh ember-resistant vents, tempered glass at all exterior windows, and a 5-foot non-combustible perimeter at grade.

Our assembly was a GAF Timberline HDZ Class A composition roof over radiant barrier sheathing, James Hardie Artisan V-groove fiber-cement siding over a Protecto Wrap WIP 300HT ignition-resistant underlayment, Milgard Trinsic tempered dual-pane windows with aluminum cladding, Brandguard BVS-8x16 ember-resistant soffit vents, and a 5-foot wide DG (decomposed granite) perimeter over a sand-setting bed replacing the original wood mulch bed.

We quoted this envelope package separately on the bid so the homeowners saw the $38,400 Chapter 7A delta isolated from the baseline rebuild. The carrier covered $31,200 of it as code-upgrade coverage under the California Insurance Commissioner's post-fire rebuild guidance; the homeowners covered the remaining $7,200 gap as an out-of-pocket envelope upgrade.

CalFire PRC 4291 defensible-space compliance became part of the scope at final-inspection stage. The owners committed to 100-foot Zone 1 and Zone 2 defensible-space clearance, removal of a 40-year-old Monterey pine that stood within 18 feet of the rebuilt structure, and a replanting scheme using CalFire Zone 0 ember-resistant species (manzanita, coast live oak at 30-foot offset, groundcover without resinous oils). CalFire inspection cleared the parcel at week 17.

The original 1923 plaster carried trace chrysotile asbestos — a common reality on pre-1980 LA housing stock. Any demolition generating over 160 sqft of ACM-suspect material triggers SCAQMD Rule 1403, which requires a pre-demolition survey by a Cal/OSHA-certified asbestos consultant and notification to the air district ten working days before demo.

Because the structure had already burned down to the foundation, we were demolishing surviving chimney masonry (non-ACM) plus a partial concrete slab (non-ACM) plus cleanup of fire-damaged plaster fragments (ACM-suspect). Our consultant took 18 bulk samples; 12 came back at 0.25-1.5% chrysotile. We filed the Rule 1403 notification, staged a licensed asbestos abatement contractor to remove the suspect debris under wet-down protocols, and cleared the site through air clearance testing before our framing crew set foot on the parcel.

The Rule 1403 compliance added $11,800 to the scope and five working days to the critical path. Skipping it would have exposed the homeowners to AQMD civil penalties that typically start at $10,000 per violation per day — a non-negotiable line item on any pre-1980 LA demo.

The FEMA-funded USACE debris removal had already scoped the site for standard Phase 2 debris (ash, concrete foundation, hazard trees) but did not address ACM-containing fragments specifically. Our Rule 1403 abatement ran immediately after USACE released the site, ahead of our foundation-repair contractor mobilizing — that sequencing matters because disturbing ACM debris during foundation work would trigger work-stoppage and clearance re-testing before any trade could return.

Weeks 1-3: site clearance, SCAQMD Rule 1403 abatement, foundation heat-check remediation with epoxy injection where cracks exceeded 1/16 inch, anchor-bolt replacement per current IRC, and new perimeter drainage.

Weeks 4-7: re-framing with engineered lumber where spans exceeded 14 feet, Simpson Strong-Tie hold-downs and sheathing nailing per Chapter 7A, CalFire-compliant vent installation, and rough MEP — 200-amp electrical service upgrade through SCE (they pulled the riser at week 6), full PEX-A plumbing re-rough, and a 3-ton Mitsubishi hyper-heat pump system with full duct replacement.

Weeks 8-11: windows, siding, roof, drywall hang and mud, exterior paint (Dunn-Edwards DE5195 Muddled Basil, owner-specified), interior primer.

Weeks 12-15: cabinets, millwork, tile, hardwood flooring (site-finished white oak 5-inch plank, 3/4-inch), plumbing and electrical trim, fixtures.

Weeks 16-18: interior paint final, punch list, LACDPW final inspection, Certificate of Occupancy walk.

Shell package (demo cleanup, foundation, framing, roof, siding, windows) came to $198,400. MEP rough-in (electrical service upgrade, plumbing PEX-A re-plumb, heat-pump HVAC) was $84,600. Drywall, insulation, interior paint: $41,200. Cabinets and millwork (kitchen + primary bath + laundry, semi-custom Dura Supreme): $68,900. Tile, stone, flooring: $52,300. Plumbing and electrical fixtures: $18,400. Appliances (GE Profile package): $14,200. Chapter 7A envelope delta (already detailed): $38,400. Permits, plan-check, inspection fees through LACDPW: $9,800. Rule 1403 abatement: $11,800. Contingency draw (10% of base): $42,000.

Total landed at $579,000 for the owners — $550,000 covered by carrier (post-supplemental) plus $29,000 owner out-of-pocket on upgrades (appliance spec bumps, hardwood species upgrade, Dunn-Edwards custom color matching). Within the $480K–$620K quote band we established at contract signing.

Per-sqft math on the full envelope including Chapter 7A and Title 24 2025 compliance worked out to $241 per sqft of rebuild — consistent with NPLD's internal benchmark for Altadena and Pacific Palisades post-fire rebuilds through Q4 2025. Parcels requiring additional soil-remediation, grading, or retaining-wall work routinely push into $280-$320 per sqft. Our parcel was a flat lot with minimal grading, which held the per-sqft number inside the mid-range band.

Three moves mattered disproportionately. First, filing SB 1103 like-for-like on the main structure and deferring the 180 sqft bathroom addition to a Phase 2 permit saved six weeks. Second, running Xactimate line-item through an adjuster who understood the California code-upgrade coverage recovered $127,000 that the initial estimate missed. Third, structuring the Chapter 7A delta as a standalone line item gave the homeowners a clear decision point instead of a buried upcharge.

If your Altadena or Pacific Palisades parcel is still in debris-removal limbo, the highest-leverage move is ordering the asbestos survey now rather than at framing — it's a fixed cost regardless of timing, and getting the Rule 1403 notification filed early shaves five working days off the critical path. Start a scoping conversation with Baily below — pre-seeded for Altadena fire rebuilds and SB 1103 expedited permitting.

Related: see our full pillar on [fire-damage restoration in Altadena](/fire-damage-restoration-altadena) and the deep-dive regulatory guide on [SB 1103 expedited permits for wildfire rebuilds](/guides/wildfire-rebuild-sb-1103) for the full procedural path.