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.

Disclaimer

Last Updated: July 12, 2026

General Disclaimer

The information provided on the Custom Green Construction ("CGC") website is for general informational and educational purposes only. While we strive to keep content current and accurate, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, or suitability of the information, project examples, or service descriptions contained on our website.

Any reliance you place on such information is strictly at your own risk. We strongly recommend consulting directly with a licensed CGC estimator or a qualified construction professional before making any decisions related to your project.

AI Cost Estimate Disclaimer

Important: AI-generated cost estimates displayed on this website or provided through our quote form are preliminary ranges only. They are intended as a starting point for budgeting conversations and do not constitute a binding bid, proposal, or contract from Custom Green Construction.

  • Estimates are based on regional market data and typical project parameters. Actual costs can vary significantly based on site-specific conditions, material selections, labor availability, and supply chain factors.
  • AI estimates do not include permit fees, plan check fees, engineering or architectural costs, utility upgrade costs, HOA review fees, or hazardous material remediation if applicable.
  • Estimates for solar installations do not account for utility interconnection timelines, NEM tariff eligibility, or specific utility company rebate programs.
  • CGC is not responsible for project decisions, contractor negotiations, or financial commitments made based solely on AI-generated cost ranges.

A formal written estimate is provided only after an in-person or virtual site consultation with a licensed CGC estimator.

Permits, Timelines & Approvals

Construction project timelines are estimates and are subject to change due to factors outside CGC's control, including but not limited to:

  • Municipal Permit Processing: Building, electrical, mechanical, and plumbing permit timelines vary by jurisdiction and are determined by the relevant authority having jurisdiction (AHJ). CGC cannot guarantee permit approval timelines.
  • HOA & CC&R Approvals:Projects subject to homeowner association review may require additional lead time that is outside of CGC's control.
  • Material Lead Times: Supply chain conditions, special-order materials, and custom fabrication can affect project start and completion dates.
  • Weather & Site Conditions: Unforeseen site conditions discovered during construction — including soil conditions, hidden structural issues, or prior code violations — may affect scope and timeline.
  • Subcontractor Scheduling: Availability of licensed subcontractors (plumbing, electrical, HVAC, roofing) is subject to market demand and scheduling.

ADU & Programmatic Information

Information regarding California ADU laws, setback requirements, owner-occupancy rules, and incentive programs (such as CalHFA ADU Grant Program eligibility) is provided for general awareness only. ADU regulations are governed by California Government Code Section 65852.2 and local ordinances, which are subject to amendment. CGC strongly recommends confirming current requirements with your local planning department prior to initiating any ADU project.

Project Gallery & Testimonials

Project photographs and client testimonials featured on our website reflect the specific outcomes of those individual projects and are not indicative of guaranteed results for future projects. Every project is unique, and final outcomes depend on scope, materials, site conditions, and client decisions throughout the process.

Licensing Information

Custom Green Construction holds California Contractors State License Board (CSLB) License #1130892. All work performed by CGC is executed under a valid license in compliance with applicable California contractor regulations. Consumers may verify license status and any disciplinary history at any time through the CSLB website at cslb.ca.gov.

Errors & Omissions

We make every effort to ensure the information on our website is accurate and current. However, typographical errors, pricing discrepancies, or outdated project information may occur. CGC reserves the right to correct any errors, inaccuracies, or omissions and to update information at any time without prior notice.

Questions

If you have questions about this Disclaimer or our services:

  • Custom Green Construction
  • 19528 Ventura Blvd STE 497, Tarzana, CA 91356
  • Phone: (737) 237-0757
  • CSLB License Check: #1130892

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