ADU San Mateo

ADU San Mateo is a full-service accessory dwelling unit builder serving homeowners throughout San Mateo County and surrounding Bay Area communities. Backed by a team of licensed builders, designers, and construction professionals, the company specializes in helping homeowners create additional living space, generate rental income, and increase property value through expertly designed and constructed ADUs. Their mission is to simplify the ADU journey by combining local expertise, quality craftsmanship, and a streamlined project management process.

Founded on the belief that building an ADU should be clear, efficient, and stress-free, ADU San Mateo brings together architectural insight, construction experience, and in-depth knowledge of Bay Area zoning and permitting requirements. From initial feasibility assessments to final move-in readiness, their team guides homeowners through every stage of the process.

Comprehensive ADU Services

As an experienced ADU contractor, ADU San Mateo offers end-to-end solutions designed to make accessory dwelling unit construction as seamless as possible.

Services Include:

• Detached ADU construction

• Attached ADU construction

• Garage conversion ADUs

• Site feasibility evaluations

• Custom ADU design and planning

• Engineering coordination

• Permit management and approvals

• Construction management

• Project oversight from concept to completion

Their team evaluates each property individually to determine the most practical and cost-effective ADU solution based on lot conditions, homeowner goals, and local regulations.

Local Expertise & Streamlined Process

One of ADU San Mateo’s greatest strengths is its deep understanding of local city requirements throughout the Bay Area. Their familiarity with zoning regulations, permitting procedures, and municipal approval processes helps homeowners avoid delays and move projects forward efficiently.

Core Values:

• Transparency throughout every stage of the project

• Strong local knowledge of city approvals and regulations

• High-quality craftsmanship using experienced local crews

• Sustainable and turnkey building solutions

The company’s approach is centered on delivering ADUs that are ready to live in, rent out, or use as flexible living space immediately upon completion.

Experienced Leadership Team

ADU San Mateo is led by experienced construction professionals who oversee both project planning and field operations.

Leadership:

• Elie AlChaer – Lead Project Principal

• Kristian Martino – Construction & Field Operations Lead

Together, they manage projects with a focus on communication, attention to detail, and quality execution from start to finish.

Why Homeowners Choose ADU San Mateo

• Licensed and experienced ADU builder

• Full-service design, permitting, and construction

• Expertise in Bay Area zoning and regulations

• Personalized project planning

• Quality-focused construction methods

• Transparent communication

• Streamlined approval process

• Turnkey ADU solutions

• Local crews and experienced professionals

Whether homeowners are building an in-law suite, backyard cottage, rental unit, guest house, or home office, ADU San Mateo provides the expertise and support needed to successfully complete the project.