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.
Transform your unused basement space into a stunning and functional living area with Custom Green Construction Inc., Los Angeles's premier green building company. We specialize in eco-friendly basement finishing solutions that enhance your home's value and minimize its environmental impact, using sustainable materials and energy-efficient designs.
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Climate & Environmental Considerations
"Los Angeles's mild climate presents unique considerations for basement finishing. Moisture control is crucial to prevent mold and mildew growth, requiring proper ventilation and waterproofing. Seismic activity also necessitates structural reinforcement to ensure the basement's stability and safety during earthquakes. Custom Green Construction Inc. addresses these challenges with expert solutions tailored to Southern California's environment."
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Local Market Pricing (2026)
Service Component
Avg. Market Cost
Green Premium
Basement Finishing
$25,000 - $75,000
10% - 20%
* Estimates are based on AI market analysis for Los Angeles and may vary based on specific site conditions.
Frequently Asked Questions
Green basement finishing enhances your home's energy efficiency, lowering utility bills and reducing its carbon footprint. Sustainable materials like bamboo flooring and recycled insulation improve indoor air quality and create a healthier living environment. Additionally, eco-friendly renovations can increase your property value and attract environmentally conscious buyers in the competitive Los Angeles market.
Custom Green Construction Inc. utilizes a variety of sustainable materials, including recycled drywall, low-VOC paints, and sustainably harvested wood. We also incorporate energy-efficient lighting and water-saving fixtures to minimize environmental impact. Our team carefully selects materials that are durable, aesthetically pleasing, and contribute to a healthier indoor environment for your Los Angeles home.
Given Southern California's climate, moisture control is paramount. We employ advanced waterproofing techniques, such as applying sealant to the walls and installing a sub-floor drainage system. Proper ventilation is ensured through the installation of energy-efficient dehumidifiers and exhaust fans. These measures prevent mold growth, protect your investment, and maintain healthy air quality.
Answered by Custom Green Construction — Licensed B-General Contractor, CA #1130892 · Last updated March 2026