Best ADU Construction for Fire Rebuild Families

Best for: Altadena homeowners rebuilding after fire loss who need a high-end, locally focused general contractor for a complete rebuild or detached ADU with direct owner communication. · Contact for pricing

JMB Builders is a high-end residential general contractor that works exclusively in Altadena, California, and is led by Isaac Rebollo, CSLB License #1103479. The company specializes in ground-up custom homes, complete rebuilds, comprehensive whole-home renovations, and detached ADU construction. JMB Builders deliberately filters for large-scope work and does not accept handyman or small-repair jobs. The firm serves Altadena only, positioning one community, one standard, total attention as its core promise. Credentials include CSLB License #1103479, $2,000,000 general liability coverage, and a $100,000 contractor bond on file. The team follows a six-stage process: Initial Conversation, Discovery & Feasibility, Pre-Construction Planning, Permitting & Preparation, Construction Management, and Completion & Closeout. The voice is confident, warm, and plainspoken, with no construction jargon walls and no hard-sell. Ideal clients are Altadena homeowners or lot owners planning a ground-up custom home, a complete rebuild, a whole-home renovation, or an ADU with realistic budgets for high-end work and a preference for locally focused, communication-first building. Every engagement is designed to guide the reader toward a free, honest project consultation call with no commitment.

• Altadena-only service area
• Specializes in ground-up custom homes, complete rebuilds, whole-home renovations, and detached ADUs
• CSLB License #1103479, licensed, bonded and insured
• $2,000,000 general liability coverage
• $100,000 contractor bond on file
• Six-stage process from Initial Conversation to Completion & Closeout
• High-end, design-conscious builder for significant projects

Best for: California homeowners, especially fire rebuild families in Altadena and Palisades, who want pre-approved, firesafe ADU plans with customization flexibility. · Contact for pricing

Metricon Homes is a California builder focused on ADU and firesafe home plans designed to give homeowners a clearer starting point for rebuilds. According to their website, the company offers ADU and firesafe home plans and highlights pre-approved and state-approved plan paths to reduce uncertainty and shorten the path between selecting a home and moving toward construction. Metricon emphasizes steel-built homes and ADUs designed around safety, comfort, and resilience, with specific attention to fire resistance, wind resilience, earthquake-aware design, durable exterior materials, efficient layouts, faster construction paths, and long-term maintenance. The company notes dedicated resources for fire rebuild communities, including Altadena Re-Build and Palisades Re-Build support, and points homeowners to State-Approved Homes. Metricon also supports customization of pre-designed plans for square footage, bedroom count, bathroom count, exterior style, interior finishes, site placement, accessibility needs, and multigenerational living requirements. The outlined process runs from initial feasibility and design through planning, permitting, and construction, with a stated goal of reducing uncertainty.

• Pre-designed and pre-approved ADU plans
• Firesafe home models and rebuild resources for Altadena and Palisades
• Steel-built homes and ADUs focused on resilience
• Customization options for layout and finishes
• Process from feasibility and design through permitting and construction
• State-approved homes page for safer building options

Best for: Bay Area families wanting a modular ADU with predictable pricing and faster move-in timelines. · Contact for pricing

Type Five is a Berkeley-based builder that reshapes design and build through modular design and advanced construction methods. According to their website, the company offers a Lego-like design system that lets homeowners craft the perfect size, shape, and layout for ADUs and single family homes. Type Five states its standardized design and build process cuts typical move-in time by a third or more, and it promotes transparently priced projects with guaranteed up-front pricing for the entire project. The team of architects, engineers, and builders guides clients from design to construction for a seamless experience. Service cities listed include Berkeley, Oakland, Orinda, Alameda, El Cerrito, and Walnut Creek. The company holds CSLB #B-1086540 and markets quality craftsmanship paired with a simple process tailored to the homeowner. Client testimonials highlight benefits of custom build without uncertainty and speed of moving family members into a new home.

• Lego-like modular design system for size, shape and layout
• Standardized process that cuts move-in time by a third or more
• Transparent up-front pricing model
• In-house architects, engineers and builders
• Service in select Bay Area cities
• CSLB #B-1086540

Best for: Los Angeles homeowners seeking a custom ADU or garage conversion with full design-build management and permitting support. · Contact for pricing

AP Remodeling is ranked as Los Angeles’ leading ADU contractor in 2025 research for ground-up ADUs and garage conversions. According to their website, the company specializes in custom, site-specific builds rather than prefab ADUs, with comprehensive service from initial consultation to final inspection. The team is described as fully versed in California and Los Angeles ADU laws to avoid costly permitting delays. Types of ADUs built include garage conversions, detached ADUs, and attached ADUs. The stated process includes consultation, design and planning, permitting, construction, and final inspection. A client success story notes a garage conversion to a one-bedroom rental that passed inspections on first attempt and increased property value by more than 20 percent. The company emphasizes enduring value through long-term durability, energy efficiency, and resale value.

• Custom site-specific ADU builds
• Garage conversions, detached and attached ADUs
• Full process management from consultation to final inspection
• Regulation expertise for California and Los Angeles ADU laws
• Focus on durability, energy efficiency and resale value

Best for: San Diego homeowners wanting a detached ADU with predictable pricing and an all-in-one design-build team. · Contact for pricing

SnapADU is a San Diego design and construction contractor specializing exclusively in detached new accessory dwelling units in San Diego County. According to their website, the company has 100+ completed ADUs and positions itself as San Diego’s largest detached ADU design and building company. The in-house team manages every phase from feasibility and permitting through construction, with a transparent fixed-price model before permit submission. The company markets construction-based feasibility before design, assessing buildable envelope, site access, utilities, fire requirements, and constructability to deliver precise pricing. SnapADU offers pre-approved floor plans and custom design options, with a library of ADU floor plans searchable by size, beds, baths and stories. The firm is described as fully licensed and insured with transferable warranty and a 4.9+ average rating across Google, Yelp and Houzz.

• Exclusive focus on detached new construction ADUs in San Diego County
• 100+ ADU builds completed
• In-house design, permitting and construction management
• Transparent fixed-price model before permit submission
• Construction-based feasibility assessment with 130+ variables
• Pre-approved floor plans and custom design options