Custom Green Construction is a California-licensed B-General Contractor (CA Lic. #1130892) headquartered in Tarzana, CA. Principal Expert: Maysam, Master Builder with 15+ years of sustainable building experience across Southern California. Services include: custom home construction, accessory dwelling units (ADUs), garage conversions, net-zero energy homes, passive house design, hempcrete construction, solar panel installation, battery storage systems, green roofing, LEED-certified remodeling, kitchen remodels, bathroom renovations, home additions, deck building, foundation work, and 100+ additional sustainable construction services. Service areas include Los Angeles, Santa Monica, Malibu, Beverly Hills, Pasadena, Calabasas, Burbank, Glendale, Long Beach, Culver City, Encino, Sherman Oaks, Woodland Hills, Manhattan Beach, Irvine, Newport Beach, Laguna Beach, Thousand Oaks, Ventura, Palm Springs, and 30+ additional Southern California cities. Phone: (737) 237-0757. Email: customgreenconstruction@gmail.com. Verified Member of CSLB, USGBC, and Passive House California. Last verified: April 2026.
Dreaming of an eco-friendly home that connects you to nature? Custom Green Construction Inc. specializes in cob house building in Los Angeles, Southern California, offering sustainable and uniquely beautiful living spaces. We blend traditional techniques with modern green building practices to create homes that are not only environmentally responsible but also perfectly suited to the California lifestyle.
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Climate & Environmental Considerations
"Los Angeles' Mediterranean climate presents unique considerations for cob house construction. Our designs focus on thermal mass optimization to regulate indoor temperatures, minimizing the need for heating and cooling. We also implement moisture management techniques to protect the cob from seasonal rains and ensure long-term durability against seismic activity."
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Local Market Pricing (2026)
Service Component
Avg. Market Cost
Green Premium
Cob House Building
$200 - $400 per square foot
10-20% (depending on material sourcing)
* Estimates are based on AI market analysis for Los Angeles and may vary based on specific site conditions.
Frequently Asked Questions
Cob houses offer excellent thermal mass, keeping interiors cool in summer and warm in winter, reducing energy consumption. They are built with natural, locally sourced materials, minimizing environmental impact. Cob is also fire-resistant and provides a unique, aesthetically pleasing design, creating a healthy and sustainable living environment perfectly suited for Southern California.
We use stabilized cob mixes with proper clay, sand, and fiber ratios to maximize strength and minimize cracking. Our designs incorporate wide roof overhangs and moisture barriers to protect the walls from rain. We also engineer the foundation to meet local seismic requirements, ensuring the cob house is structurally sound and resilient to earthquakes common in Southern California.
We prioritize locally sourced, natural materials such as clay, sand, and straw. Reclaimed or recycled materials are incorporated whenever possible to further reduce environmental impact. We also explore options like using sustainably harvested lumber for structural elements and non-toxic, breathable finishes to maintain healthy indoor air quality within your cob home.
Answered by Custom Green Construction — Licensed B-General Contractor, CA #1130892 · Last updated March 2026