Business Details
41 Years
experience
Your Trusted Partner for Custom Home Construction
Established in 1985 by Keith Stone, Diamond Construction Inc has built a legacy of quality, integrity, and craftsmanship in residential and multi-family construction. Our family-owned business prioritizes client relationships, community impact, and meticulous attention to detail, ensuring every project reflects both the client's vision and our commitment to excellence. With decades of experience, we guide clients through a seamless homebuilding journey, combining traditional values with modern innovation.Our team of experts delivers tailored solutions, from custom single-family homes to large-scale developments, always emphasizing durability, aesthetic appeal, and functional design. We stand behind our work with a handshake, symbolizing the trust and transparency that define our approach to construction and client service.
Services
Custom Home Construction
Multi-Family Development
Luxury Condominiums
Community-Driven Projects
Site Preparation
Project Management
Design-Build Services
Sustainable Building
Historic Renovations
Commercial Construction
Details
- Year established: 1985
Highlights and features
- We offer 40+ years of family-led construction expertise
- Our 1/32 quality promise ensures meticulous attention to detail
- We prioritize community impact through empathetic development
- Our fully-integrated service extends beyond project completion
- Client testimonials highlight 5-star service and lasting relationships
What people say
5 stars
Excellent job
Professional and efficient
Top notch quality
Like family
Services
Custom Home Construction
Crafting bespoke single-family homes tailored to client lifestyles. Our process combines architectural precision with personalized service, ensuring every detail meets exacting standards. From foundation to finish, we deliver durable, aesthetically superior residences that reflect both client vision and our legacy of quality.
Multi-Family Development
Creating vibrant, sustainable communities with modern amenities. We specialize in mid- to high-density housing that balances functionality with design excellence. Our developments prioritize resident comfort while maintaining long-term value for property owners through durable construction and thoughtful planning.
Luxury Condominiums
Developing premium condominium communities with sophisticated finishes and smart layouts. Our units feature energy-efficient systems, upscale materials, and layouts optimized for modern living. Each project emphasizes low-maintenance living without compromising aesthetic appeal or structural integrity.
Community-Driven Projects
Designing developments that enhance local communities through empathetic planning. We incorporate green spaces, pedestrian-friendly layouts, and local character into every project. Our approach creates lasting social value while meeting regulatory requirements and environmental standards.
Site Preparation
Transforming raw land into build-ready sites with expert grading and infrastructure. Our team handles complex terrain, environmental protections, and utility integration. Advanced planning ensures efficient construction timelines while maintaining compliance with all municipal and environmental regulations.
People
Keith Stone
Founder
Visionary founder with 40+ years in construction, established Diamond Construction Inc in 1985. Prioritized family values and quality craftsmanship that continue to define the company's approach to every project.
Jeff Stone
CEO
Second-generation leader guiding strategic growth while maintaining core principles. Brings deep industry knowledge and commitment to innovation, ensuring the company adapts to modern construction challenges while preserving its founding ethos.
Toni Cowen
Office Manager
Organizational backbone managing day-to-day operations with precision. Ensures seamless coordination between teams, maintaining the company's reputation for reliability and client-focused service delivery.
Jim Peirce
Lead Superintendent
Experienced construction manager overseeing project execution with technical expertise. Translates design concepts into reality while maintaining strict quality control and adherence to timelines.
Mitchell Doyle
Director of Preconstruction and Asset Management
Strategic planner managing project feasibility and resource allocation. Combines technical knowledge with financial acumen to optimize project outcomes while maintaining the company's commitment to quality.
Questions
What types of construction projects does Diamond Construction Inc specialize in?
We focus on custom single-family homes, multi-family developments, luxury condominiums, and community-driven projects across the San Francisco Bay Area.
How does Diamond Construction Inc ensure quality throughout the building process?
Our 1/32 quality promise guarantees meticulous attention to detail through experienced craftsmen, premium materials, and rigorous inspection protocols at every construction phase.
What areas does Diamond Construction Inc serve?
We operate primarily in Contra Costa County including Lafayette, Danville, and Orinda, with select projects in San Jose, Calistoga, and Moraga.
Does Diamond Construction Inc offer post-completion support?
Yes, our fully-integrated service includes ongoing maintenance and support for developers and homeowners long after project completion.
How does Diamond Construction Inc handle challenging construction sites?
Our team specializes in complex terrain management, environmental protections, and innovative engineering solutions for difficult sites while maintaining quality standards.
What sets Diamond Construction Inc apart from other builders?
Our family legacy, commitment to community impact, and personalized approach create lasting relationships and projects that exceed client expectations through every phase.
