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.
Custom Green Construction Inc. specializes in eco-friendly historic preservation across Los Angeles, blending heritage restoration with modern sustainability. Our expert team ensures that iconic Southern California structures are preserved using green building techniques that reduce environmental impact while maintaining architectural integrity.
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Climate & Environmental Considerations
"Los Angeles presents unique challenges for historic preservation, including high seismic activity requiring structural reinforcement and intense UV exposure that degrades traditional materials. Additionally, the region's semi-arid climate necessitates drought-resistant landscaping and moisture management to prevent dry rot in aging timber frames."
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Local Market Pricing (2026)
Service Component
Avg. Market Cost
Green Premium
Historic Masonry Restoration
$25 - $60 per sq ft
$35 - $80 per sq ft
Sustainable Window Rehabilitation
$500 - $1,200 per unit
$700 - $1,500 per unit
Period-Correct Green Roofing
$15 - $30 per sq ft
$20 - $45 per sq ft
* Estimates are based on AI market analysis for Los Angeles and may vary based on specific site conditions.
Frequently Asked Questions
We combine Los Angeles' strict Office of Historic Resources guidelines with sustainable practices. Our process involves using salvaged materials, low-VOC finishes, and energy-efficient retrofitting that respects the Secretary of the Interior’s Standards. This ensures your historic property remains a sustainable asset for future generations while lowering its carbon footprint.
Yes, property owners in Los Angeles can benefit from the Mills Act, which offers significant property tax reductions for restoring historic buildings. When combined with federal energy-efficiency tax credits for green upgrades, these incentives make sustainable preservation an economically viable choice for preserving Southern California’s unique architectural history.
Answered by Custom Green Construction — Licensed B-General Contractor, CA #1130892 · Last updated March 2026