Brentwood's housing stock includes 1990s-2000s two-story stucco production homes in Shadow Lakes and Deer Ridge and 2000s-2010s Mediterranean and California Contemporary in master-planned communities. For homeowners who want something purpose-built for Brentwood's climate and lifestyle, a ground-up custom home eliminates the compromises of renovating aging structures.
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Share your site and project goals. Our architect-led team will discuss feasibility, design, permits, and construction planning.
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Custom Home Services 
Start With the Custom Home Service You Need
Ground-Up Custom Homes
A complete design-build path from site study and program through architecture, engineering, permits, construction, inspections, and closeout.
Custom Home Design
Architect-led planning shaped by the lot, views, access, climate, structure, building systems, interiors, budget, and permit constraints.
Custom Home Permits
Coordination for planning review, architecture, engineering, energy documents, fire requirements, utility agencies, comments, and revisions.
Site-Specific Additions and Renovations
Architect-led work for existing homes when the new scope must respond to the original structure, site, systems, and architectural character.
Brentwood's housing stock spans 5% pre-1980, 15% 1980-1994, 40% 1995-2009. Architectural styles range from 1990s-2000s two-story stucco production homes in Shadow Lakes and Deer Ridge to 2000s-2010s Mediterranean and California Contemporary in master-planned communities. Each era and style presents different custom homes requirements — from material compatibility to structural considerations. Our crews know what to expect before they arrive on site.
Brentwood experiences some of Contra Costa County's most extreme heat, with summer temperatures regularly exceeding 105 degrees, putting severe stress on exterior materials. Our custom home designs for Brentwood account for these conditions with proper insulation, strategic overhangs, energy-efficient systems, and materials rated for local temperature extremes.
Brentwood has grown rapidly since the early 2000s, with most housing stock being newer master-planned communities featuring stucco exteriors and tile roofs. Median home prices are around $780,000. As the existing stock ages, teardown-and-rebuild projects are becoming increasingly common, allowing homeowners to create modern, efficient homes tailored to their exact needs.
The City of Brentwood Building Division processes permits for this fast-growing community, with typical turnaround of 3-5 weeks for standard residential projects. Hamilton Exteriors (CSLB #1078806) manages the complete custom home permitting process in Brentwood, from plan check through final inspection, with deep familiarity with local building department procedures.
Neighborhoods We Serve
Custom Homes Across Brentwood Neighborhoods
Local planning starts with the site, neighborhood context, access, and applicable city review.
Shadow Lakes
Shadow Lakes homeowners frequently choose Hamilton Exteriors for custom homes. Brentwood's housing stock includes 1990s-2000s two-story stucco production homes in Shadow Lakes and Deer Ridge and 2000s-2010s Mediterranean and California Contemporary in master-planned communities. With Brentwood's Summer average 95°F with 25+ days above 100°F — hottest CCC city, material selection in Shadow Lakes requires local expertise.
Deer Ridge
In Deer Ridge, homes are predominantly 2000s-2010s Mediterranean and California Contemporary in master-planned communities. For homeowners who want something purpose-built for Brentwood's climate and lifestyle, a ground-up custom home eliminates the compromises of renovating aging structures. Our crews are familiar with Deer Ridge's architectural character and building requirements.
Brentwood Lakes
Brentwood Lakes custom homes benefit from Brentwood's climate by incorporating indoor-outdoor living spaces, covered patios, and strategic window placement for natural ventilation.
Vineyards
The Vineyards neighborhood commands premium home values in Brentwood, making custom construction a sound investment. Quality materials and thoughtful design ensure strong appreciation.
Heritage
We have built homes throughout Heritage with styles ranging from contemporary to traditional, each reflecting the homeowner's lifestyle and the neighborhood's character.
Project Management How Hamilton Exteriors
How Hamilton Exteriors
Manages Your Custom Home Project
Site and Program Study
We review the lot, survey, zoning, access, utilities, soil information, site constraints, and the homeowner's space requirements.
Design and Scope Coordination
Architecture, engineering, building systems, selections, permit needs, budget, and construction methods develop through one coordinated process.
Permits and Construction
We coordinate agency review, site work, foundation, structure, envelope, building systems, finishes, inspections, and documented scope changes.
Move-In and Closeout
We complete final inspections and the punch list, organize manuals and closeout records, and review applicable warranty terms.
Google rating 4.6 ★ from 47 public reviews
Homeowner Reviews of Our Construction Work
Public feedback from remodeling and related construction projects.
K
Kevin L
via Google
We hired them for a bigger renovation. Alex was very responsive, which I appreciated. We changed a couple requirements during the job and they worked with us on it without making it complicated. Overall, everything went pretty smooth and their quality of work is solid. I recommend them highly!
J
Jacob Rothwell
via Google
Alex Li helped me with my basement remodeling, they were super efficient, and the work came out better than I could’ve ever imagined! Thank me later!
M
Maan D
via Google
Had Hamilton Exteriors do a full kitchen renovation. Natasha helped a lot with scheduling and coordination which made things easier on our end. We got regular updates and didn’t feel left in the dark at any point. The team paid attention to details and made sure everything was installed properly. the whole process felt pretty smooth and the kitchen came out really clean. happy with the final result
L
Lekan Ajayi
via Google
This service was good and very efficient, all remodeling was done to liking. Jacob was a great worker and helped with answering questions that was needed. Would recommend to others.
Google rating: 4.6/5 from 47 public reviews
Read reviews on GoogleCompare Broad Custom Home Starting Points
Swipe to compare all options.
| Feature | Ground-Up Home | Hillside Home | Existing-Home Transformation |
|---|---|---|---|
| Starting condition | Vacant or cleared building site | Sloped or access-constrained site | Existing residence and systems |
| Early investigation | Survey, utilities, zoning, and soils | Survey, soils, slope, drainage, and access | Existing plans, field verification, and selective investigation |
| Main structural focus | New foundation and complete structure | Foundation, retaining, drainage, and seismic design | Connections between existing and new work |
| Design coordination | Whole-home program and systems | Home, site, views, and construction access | New scope, existing character, and occupied-home constraints |
| Dedicated guide | Ground-up custom homes | Start with custom home design | Site-specific renovation |
Custom Home Financing
Plan Your Construction Budget With Approved Credit
Financing may be available for eligible custom home construction scopes with approved credit. During early planning, we align the project scope and payment milestones, then explain which current lender programs and terms may fit the proposed work.
Ask which current options fit your custom home project.
Call Now (650) 977-3351 Frequently Asked Questions
Didn't find the answer to your question? Call Now (650) 977-3351
What areas do you serve?
We serve Northern California across three regions: the San Francisco Bay Area, Greater Sacramento, and the Central Valley. Our published guides cover 14 counties and 88 cities. Our Castro Valley and Sacramento offices support local estimating, permit coordination, and project planning across these regions.
How does billing and financing work?
Financing may be available for eligible projects with approved credit. Available terms depend on lender approval, project scope, and current programs. Your project manager can review the options that apply before work begins. We also accept checks, ACH, and major credit cards.
Are you licensed and insured?
Yes. Hamilton Exteriors holds CSLB License #1078806, active general liability coverage, and the required contractor bond. We also hold GAF Master Elite and James Hardie Elite Preferred credentials. We can provide current proof of coverage before work begins.
Do I need a permit for my exterior project?
Permit requirements depend on the project scope and local jurisdiction. Hamilton Exteriors coordinates required applications, plan documents, corrections, and inspections. Permit fees and allowances appear in the proposal before construction begins.
How much does it cost per square foot to build a custom home in Brentwood?
Custom home construction in Brentwood ranges from $350-$600 per square foot depending on finishes, site conditions, and complexity. Hamilton Exteriors provides detailed cost estimates during our design phase.
How long does it take to build a custom home in Brentwood?
A custom home in Brentwood typically takes 12-18 months from ground-breaking to completion. The full timeline including design and permitting spans 18-24 months.
What permits are needed for custom home construction in Brentwood?
Custom homes in Brentwood require building permits, grading permits, and various inspections. Hamilton Exteriors manages the entire permitting process through the local building department.
How do I find a buildable lot in Brentwood?
We work with local real estate agents specializing in Brentwood vacant lots and teardown properties. Our team evaluates soil conditions, utilities access, and zoning before you purchase.
Do you handle design and architecture for custom homes in Brentwood?
Yes. Hamilton Exteriors is architect-led (CSLB #1078806), providing integrated design and construction. This single-source approach saves time and eliminates communication gaps.
Your Next Step
Plan Your Project With a Clear Scope
Financing may be available with approved credit for eligible projects.
Tell us about your project. We usually call within 3–5 minutes to schedule the next step.
21634 Redwood Rd Unit F, Castro Valley, CA 94546
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