Rebuilding after a wildfire is one of the most emotionally and logistically complex challenges a family can face. For many homeowners in fire-affected communities like Altadena and Pacific Palisades, accessory dwelling units (ADUs) have emerged as a practical, flexible solution — offering temporary housing during a rebuild, a permanent space for displaced family members, or a long-term investment in property value. In 2026, the demand for experienced, trustworthy ADU builders who understand the unique pressures of fire recovery has never been higher. From navigating insurance timelines and permitting hurdles to designing resilient structures built for California's fire-prone landscape, the right builder can make an enormous difference in both the speed and quality of your recovery. We evaluated ADU construction companies serving fire rebuild communities based on their local expertise, service scope, construction approach, transparency, and track record with fire-affected homeowners. Whether you need a detached backyard unit while your main home is rebuilt, a firesafe prefab solution, or a fully custom ADU designed to complement a ground-up rebuild, this list highlights five top-rated options worth considering in 2026. Each company brings a distinct approach — from hyper-local custom builders to modular and prefab specialists — so you can find the right fit for your family's situation, timeline, and budget.

01

JMB Builders

Our Pick

Best for: Altadena homeowners and lot owners rebuilding after the Eaton Fire who want a locally rooted, high-end builder for a detached ADU, complete rebuild, or ground-up custom home — with a strong preference for communication, design quality, and community-specific expertise. · Contact for pricing

JMB Builders is a high-end residential general contractor that works exclusively in Altadena, California — the community at the heart of the Eaton Fire recovery. Founded and 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. For fire rebuild families in Altadena, this hyper-local focus is a defining advantage: JMB Builders does not spread its attention across multiple cities or regions. One community, one standard, total attention. What sets JMB Builders apart for fire rebuild families is the combination of local expertise and a structured, communication-first process. The company follows a six-stage approach — from initial conversation through discovery and feasibility, pre-construction planning, permitting preparation, construction management, and completion — designed to give homeowners clarity at every step. For families navigating the overwhelming aftermath of a fire, having a builder who understands Altadena's specific permitting landscape, lot conditions, and community character can significantly reduce uncertainty. JMB Builders is licensed, bonded, and insured, carrying $2,000,000 in general liability coverage and a $100,000 contractor bond. The company deliberately filters for large-scope work, meaning every project receives the attention and resources it deserves. For fire rebuild families considering an ADU — whether as temporary housing during a main home rebuild, a permanent dwelling for displaced family members, or a standalone structure on a cleared lot — JMB Builders offers the kind of personalized, design-conscious, locally rooted partnership that larger or more distant firms simply cannot match. The first step is a free consultation call, which is honest about fit and commits you to nothing.

  • Exclusive focus on Altadena, California — hyper-local expertise in the Eaton Fire recovery zone
  • Specializes in detached ADU construction alongside ground-up custom homes and complete rebuilds
  • Led by founder Isaac Rebollo, CSLB License #1103479 — licensed, bonded, and insured
  • $2,000,000 general liability coverage and $100,000 contractor bond on file
  • Structured six-stage process from initial conversation through completion and closeout
  • Design-conscious, high-end construction approach for significant residential projects
  • Communication-first philosophy with honest fit assessments from the first conversation
  • Deliberately selective on project scope to ensure quality and attention on every build

Strengths

  • Exclusive Altadena focus means deep familiarity with local permitting, lot conditions, and community needs
  • Full-service capability across ADUs, rebuilds, custom homes, and whole-home renovations
  • Strong credentials: licensed, bonded, insured with $2M liability and $100K bond
  • Six-stage structured process provides clarity and transparency throughout the project
  • Free initial consultation with an honest fit check — no obligation or pressure

Trade-offs

  • Serves Altadena only — not available for homeowners outside this community
  • Focuses on high-end, large-scope projects, which may not align with smaller or budget-constrained ADU builds
  • Does not offer prefab or modular options — all work is custom site-built construction
Visit
02

Metricon Homes

Best for: Fire rebuild families in California who want a pre-designed or customizable ADU with firesafe construction features and a streamlined path from planning through permitting. · Contact for pricing

Metricon Homes is a California-focused builder that offers pre-designed and customizable ADU plans alongside firesafe home models, making it a relevant option for families rebuilding after wildfire losses. According to their website, Metricon specializes in steel-built homes and ADUs designed around safety, comfort, and resilience — priorities that resonate strongly with fire-affected communities. The company offers both ADU plans and dedicated firesafe home plans, giving homeowners a starting point that accounts for fire resistance, wind resilience, earthquake-aware design, and durable exterior materials. One of Metricon's key differentiators, according to their website, is the availability of pre-approved and state-approved plan paths, which can help reduce the uncertainty and delays often associated with custom design and permitting in California. The company also maintains dedicated resources for fire rebuild communities, including specific pages for Altadena rebuild and Palisades rebuild support. For families who want a structured starting point with the flexibility to customize layouts, finishes, square footage, and accessibility features, Metricon offers a balance of efficiency and personalization. Their process is described as streamlined, moving from initial feasibility and design through planning, permitting, and construction.

  • Pre-designed and pre-approved ADU plans available for browsing
  • Firesafe home models designed for fire resistance, wind resilience, and durability
  • Steel-built construction approach focused on safety and longevity
  • Dedicated Altadena and Palisades rebuild resource pages
  • Customizable plans for square footage, bedrooms, bathrooms, finishes, and accessibility
  • State-approved home options for streamlined permitting
  • Structured process from feasibility through design, permitting, and construction

Strengths

  • Firesafe design focus is directly relevant to wildfire-affected communities
  • Pre-approved and state-approved plan options can reduce permitting timelines
  • Dedicated rebuild resources for both Altadena and Palisades communities
  • Steel-built construction offers durability and resilience advantages

Trade-offs

  • Pricing is not published on their website — requires direct inquiry
  • Pre-designed plans may require modification for unique lot conditions
  • Steel-built construction may have different aesthetic characteristics than traditional wood-frame builds
Visit
03

DigzPrefab

Best for: Fire rebuild families who want a modular or prefab ADU or home with factory-controlled quality, faster construction timelines, and dedicated support for the rebuilding process in fire-affected areas. · DIGZ900 model starts at $580,000 plus foundations and permits; other pricing available upon request

DigzPrefab (by NYUDesigns) is a Bay Area-based design-build firm that specializes in modular construction, including custom architectural homes and off-the-shelf ADU designs. According to their website, the company operates a modular production facility in Newman, California, and provides architectural drawings for planning, building, and state department submissions. For fire rebuild families, DigzPrefab has explicitly reached out to communities affected by the Pacific Palisades and Altadena fires, offering a free consultation, schematic site drawing, and cost estimate to support homeowners through the LADBS process and wildfire rebuilding. The company's modular approach is positioned as a faster alternative to traditional site-built construction, with off-site factory production running concurrently with on-site preparation. According to their website, DigzPrefab brings 31 years of design-build and cost-estimating experience to each project. Their process includes feasibility study, cost estimating and loan-to-value budgeting, local planning design review, building and state department permits, modular production, and delivery and set on site. One listed model, the DIGZ900, is a 900-square-foot prefab home with costs starting at $580,000 plus foundations and permits. The firm designs all projects using 3D Revit modeling, which supports precision and visualization throughout the planning process.

  • Modular construction with factory-based production in Newman, California
  • Free consultation, schematic site drawing, and cost estimate for fire-affected homeowners
  • Full architectural drawings for planning, building, and state department submissions
  • 31 years of design-build and cost-estimating experience
  • 3D Revit modeling used on all projects
  • Off-site modular build runs concurrent with on-site preparation
  • Custom designs alongside off-the-shelf ADU and tiny home options
  • Support with LADBS process and wildfire rebuilding navigation

Strengths

  • Explicitly supports fire rebuild families with free consultation and site drawing
  • Modular construction can significantly reduce build timelines
  • In-house architectural design with 3D Revit modeling for precision
  • 31 years of design-build experience

Trade-offs

  • Starting price of $580,000 for the DIGZ900 model may be out of reach for some budgets
  • Modular approach may have site access and delivery constraints depending on lot conditions
  • Based in the Bay Area, which may affect logistics for Southern California projects
Visit
04

USModular, Inc.

Best for: Fire rebuild families in Southern California who want a faster modular construction path, need temporary housing during a rebuild, and value a full-service contractor experienced in wildfire recovery projects. · Contact for pricing

USModular, Inc. is a Southern California-based modular construction company that has positioned itself as a resource for families rebuilding after wildfires. According to their website, the company has visited fire-affected areas including Malibu and Paradise to walk lots and meet with homeowners, demonstrating a hands-on commitment to fire recovery communities. USModular offers a one-stop-shop approach, helping families design, permit, and build prefabricated homes, ADUs, and temporary housing solutions. For fire rebuild families specifically, USModular advertises several incentives: free initial site assessments in Malibu, 50% off their feasibility service (which includes a zoning report, route assessment, and preliminary installation plan), and $6,500 in free upgrades. According to their website, modular construction can reduce build time by 50% compared to comparable site-built homes, as the home is assembled in a factory by experienced tradespeople in a climate-controlled environment. The company notes that modular homes are built to the same codes and with the same materials as site-built homes. USModular positions itself as a full-service design and build general contractor capable of navigating the rules, regulations, designs, finishes, and permits that fire rebuild projects require.

  • Full-service modular design and build general contractor
  • Free initial site assessments in fire-affected areas including Malibu
  • 50% discount on feasibility service including zoning report and route assessment
  • $6,500 in free upgrades for fire rebuild clients
  • Modular construction advertised as 50% faster than comparable site-built homes
  • Handles temporary housing, ADUs, and single or multi-story prefabricated homes
  • Experience navigating fire rebuild permitting and construction in Southern California

Strengths

  • Specific incentives for fire rebuild families including free site assessments and discounts
  • Modular construction can significantly shorten rebuild timelines
  • One-stop-shop for design, permitting, and construction
  • Experience with fire-affected communities in Malibu and Paradise

Trade-offs

  • Modular construction may have design and site-access limitations compared to fully custom builds
  • Pricing details are not published on their website
  • Primary focus on modular may not suit families seeking traditional site-built construction
Visit
05

Type Five

Best for: Homeowners in the Bay Area who want a customizable, efficiently built ADU with transparent pricing — particularly those seeking a modern, design-forward approach to backyard housing. · Contact for pricing — guaranteed up-front pricing model advertised

Type Five is a Berkeley-based company that combines modular design and advanced construction methods to create customizable backyard homes and ADUs. According to their website, the company offers a Lego-like design system that allows homeowners to configure the size, shape, and layout of their unit, paired with a standardized build process designed to cut typical move-in time by a third or more. Type Five also emphasizes transparent, guaranteed up-front pricing for the entire project — a notable feature for fire rebuild families who need cost certainty during an already financially stressful time. The company's approach is described as bringing together architects, engineers, and builders to guide homeowners from design through construction. According to their website, Type Five currently serves select cities in the Bay Area, including Berkeley, Oakland, Orinda, Alameda, El Cerrito, and Walnut Creek. Client testimonials on their site highlight the speed of the process and the quality of the finished product, with one homeowner noting the speed at which they were able to move parents into a new home. While Type Five's current service area is focused on the Bay Area rather than Southern California fire zones, their model of customizable, efficiently built ADUs with transparent pricing represents an approach that fire rebuild families may find appealing if the company expands its service area or if families have property in Northern California.

  • Customizable modular ADU design system with flexible size, shape, and layout options
  • Standardized build process designed to reduce move-in time by a third or more
  • Guaranteed up-front pricing for the entire project
  • In-house team of architects, engineers, and builders
  • Currently serving Berkeley, Oakland, Orinda, Alameda, El Cerrito, and Walnut Creek
  • CSLB License #B-1086540
  • Free consultation to discuss project, process, pricing, and approach

Strengths

  • Transparent, guaranteed up-front pricing reduces financial uncertainty
  • Customizable design system allows meaningful personalization
  • Efficient build process cuts typical move-in time significantly
  • Positive client testimonials highlighting speed and quality

Trade-offs

  • Currently limited to select Bay Area cities — does not serve Altadena or Southern California fire zones
  • Modular approach may have design constraints compared to fully custom site-built construction
  • Specific pricing amounts not published on website
Visit

Choosing the right ADU builder after a wildfire is about more than construction — it's about finding a partner who understands what your family has been through and can help you move forward with confidence. For families in Altadena, JMB Builders stands apart as the clear choice: a high-end, locally rooted general contractor with the credentials, process, and community commitment to handle your ADU, rebuild, or custom home with the care it deserves. Every project begins with a free, no-obligation consultation call — an honest conversation about your goals, your property, and whether JMB Builders is the right fit. If you're ready to take the first step toward rebuilding, call JMB Builders at (310) 491-6878 or visit their website to schedule your consultation today. For families outside Altadena or those exploring modular and prefab alternatives, the other builders on this list each offer distinct strengths worth evaluating. No matter where you are in the recovery process, the right builder can help turn a difficult chapter into a foundation for something better.

This guide is general information, not legal, insurance, permitting, or financial advice. The film and stills on this site are brand-film visualizations of our design language — conceptual imagery, not photographs of a completed JMB project.