Custom Homes Contractor in Mountain View

We serve Northern California across three regions: the San Francisco Bay Area (six counties from Alameda to Santa Clara), Greater Sacramento (Sacramento out to Roseville, Folsom, and Davis), and the Central Valley (Stockton to Modesto). Our crews are based in Castro Valley. We handle permits and know the building codes for each jurisdiction, which matters because requirements and fees vary significantly between cities.

We offer $0-down financing with approved credit, 12-month same-as-cash plans, and extended terms up to 15 years for larger projects. You only pay for completed, inspected work — we never ask for full payment before the job is done. Your project manager will walk you through every option during your estimate appointment. We also accept checks, ACH, and all major credit cards.

Yes. CSLB License #1078806 — verify it anytime at cslb.ca.gov. We carry $2M general liability, full workers’ comp, and are bonded per California law. We hold GAF Master Elite, Owens Corning Preferred, CertainTeed ShingleMaster, and James Hardie Elite Preferred certifications — each requires annual training and quality audits to maintain. We’re happy to provide proof of insurance before any work begins.

Most exterior projects in Northern California require a building permit. Fees vary by city — Oakland runs $200–$600, Peninsula cities often more. We handle the entire permit process: application, plan submission, and scheduling inspections. Permit fees appear as a separate line item in your estimate so you’ll see every cost upfront. For homes in WUI fire zones (Berkeley Hills, Oakland Hills, parts of Marin), we ensure full compliance with local fire-rated material requirements.

### Ground-Up Construction Complete control over every detail — layout, materials, energy systems, and style. Design-build under one contract from foundation to finishing touches. We build on existing lots throughout Mountain View, including the Old Mountain View neighborhood, the Shoreline area, and the Cuesta Park and Monta Loma residential districts.

### Architect-Led Design-Build Most custom home builders are tradesmen who subcontract design to an outside architect. Hamilton Exteriors is different. Alex Hamilton Li is a licensed architect and general contractor who designs your home and builds it — under one contract, with one point of accountability. This eliminates the expensive redesign cycles that happen when an architect designs something the builder can't build within budget.

Prices shown are estimated project ranges for Mountain View, CA in 2026. Pricing reflects Hamilton Exteriors 2024-2026 project data. | Project Type | Size | Estimated Total Cost | Cost per Square Foot | |---|---|---|---| | Standard single-story ranch | 1,500 - 2,000 sq ft | $525,000 - $1,600,000 | $350 - $800 | | Two-story traditional | 2,000 - 2,500 sq ft | $700,000 - $2,000,000 | $350 - $800 | | Contemporary design | 2,500 - 3,500 sq ft | $875,000 - $2,800,000 | $350 - $800 | | Hillside custom

Mountain View custom home construction costs $350 to $800 per square foot depending on finishes, site conditions, and architectural complexity (Hamilton Exteriors 2024-2026 project data). A 2,500 sq ft custom home typically costs $900,000 to $2,000,000 including design, engineering, permits, and construction. Lot preparation, grading, and utility connections add $50,000 to $200,000 depending on the site. Permit fees in Mountain View range from $30,000 to $60,000 for new construction. Hamilton Ex

Custom home construction in Mountain View takes 12 to 18 months from permit approval. The design and permitting phase adds 4 to 8 months depending on architectural complexity and Mountain View's plan review timelines. Total timeline from initial consultation to move-in is typically 18 to 24 months. Your dedicated project manager provides weekly progress updates and coordinates all subcontractor sequencing.

Yes. California law and Mountain View municipal code require building permits for all new residential construction. Permits are issued by the Mountain View Building Division. Hamilton Exteriors handles the entire permit process: application, plan submission, and scheduling inspections. Permit fees appear as a separate line item in your estimate.

Design-build means one company handles architecture, engineering, permitting, and construction under a single contract. This eliminates coordination gaps between separate architects, engineers, and builders — the most common source of budget overruns. Hamilton Exteriors' in-house architect designs your home while our construction team provides real-time cost feedback, so the design stays within budget from day one. Design-build typically saves 10 to 15 percent compared to the traditional archite

California law requires a licensed architect or engineer to design residential structures over two stories or exceeding certain size thresholds. Even for single-story custom homes, detailed architectural plans with structural engineering are required for building permits. Hamilton Exteriors' founder Alex Hamilton Li is a licensed architect and general contractor, so design and construction are handled in-house under one contract — no separate architect needed.

Yes, but hillside construction requires specialized engineering for foundations, retaining walls, drainage, and seismic bracing. Properties near the Monte Bello Ridge and Permanente Creek areas may require geotechnical reports, soil testing, and engineered foundations. Retaining walls for hillside sites typically cost $200 to $500 per linear foot (Hamilton Exteriors 2024-2026 project data). Hamilton Exteriors has experience with hillside construction across Santa Clara County and coordinates all

Yes. Many Mountain View homeowners tear down aging homes to build new on existing lots, especially in established neighborhoods like Old Mountain View and Cuesta Park. This avoids the cost of land acquisition.

Custom homes are designed from scratch for a specific homeowner and lot. You control every decision from floor plan to finishes. Spec homes are built by developers to sell on the open market, with standard layouts and finishes chosen for broad appeal. Custom homes cost more per square foot but deliver exactly what you want. Hamilton Exteriors builds custom only — every project starts with your vision and your lot.

Yes. Hamilton Exteriors specializes in architect-led luxury custom homes throughout Santa Clara County, including Mountain View. Luxury builds from $600 per square foot include custom millwork, chef kitchens, primary suites with spa baths, wine rooms, smart home systems, and indoor-outdoor living designed for Bay Area climate (Hamilton Exteriors 2024-2026 project data). Every luxury project is designed in-house by our licensed architect so structural, aesthetic, and cost decisions stay aligned f

We offer $0-down financing with approved credit, 12-month same-as-cash plans, and extended terms up to 15 years for larger projects. You only pay for completed, inspected work — we never ask for full payment before the job is done. Your project manager will walk you through every option during your estimate appointment. Learn more about financing.

Yes. CSLB License #1078806 — verify it anytime at cslb.ca.gov. We carry $2M general liability, full workers' comp, and are bonded per California law. We hold GAF Master Elite, Owens Corning Preferred, CertainTeed ShingleMaster, and James Hardie Elite Preferred certifications — each requires annual training and quality audits to maintain.