Reliable ADU Builder in Hayward
Want to add more livable space or generate rental income from your property? Geico Builders is your trusted ADU builder in Hayward, providing custom accessory dwelling units that meet local code and deliver long-term value. Whether you’re adding a detached backyard unit, converting a garage, or expanding your home, we make the process smooth and efficient.







Trusted ExpertsSmart Solutions for Additional Living Space
Expanding your home is a smart investment but it requires expertise, planning, and coordination. Get full-service construction including site assessments, architectural planning, and permitting with a professional ADU builder in Hayward.
Why Choose Geico Builders?
Custom Layouts: Every floorplan is designed to match your property, budget, and intended use.
Zoning & Permitting Experts: We handle all city approvals to keep your project on track.
Durable Materials: Quality materials selected for performance and longevity.
Seamless Project Management: One team, one contract, from concept to completion.

Construction
Comprehensive Solutions
We offer a variety of ADU types to fit different property layouts, budgets, and lifestyle needs.
Detached: Standalone backyard units that offer complete privacy and flexibility.
Attached: Add onto your main structure with a separate entrance and living area.
Garage Conversions: Repurpose unused garages into fully livable, compliant ADU spaces.
Interior Conversions: Transform part of your home into a legal second unit with full amenities.
Junior: A compact, affordable unit within your home with a private entrance and efficient design.
Our team handles every phase including design, permits, site work, construction, and final inspections.
Why Hayward Trusts Us
Premium Materials
We use only high-quality, durable materials in every project, ensuring longevity, aesthetic appeal, and resilience against wear and tear.
Maximized Property Potential
Our designs maximize your property’s layout, adding value without sacrificing space.
Energy-Efficient Designs
We use modern construction techniques and products that meet or exceed Title 24 energy requirements.

Certified, Local Professionals
Our builders are fully licensed and insured, with extensive experience navigating Hayward’s regulations and zoning laws.
3D Design Previews
Visualize your new unit before it’s built with high-quality renderings and layout options.
Clear Estimates & Communication
You’ll receive detailed pricing, a transparent timeline, and ongoing updates throughout the process.
Our Streamlined Process
01.
Consultation & Site Analysis
We meet on-site to assess your property, confirm feasibility, and discuss your budget, goals, and timeline.
02.
Design & Permitting
Our team prepares custom floorplans and manages the entire permit process, ensuring full code compliance.
03.
Construction Begins
We handle excavation, framing, utility work, and finishing, all with professional oversight and consistent quality control.
04.
Final Inspection & Turnover
We walk through the finished unit with you, address final details, and ensure you’re completely satisfied with the result.
Frequently Asked Questions
How much does it cost to build an ADU in Hayward?
The cost depends on the type of unit, materials, and site conditions. Our ADU builder in Hayward offers fully detailed estimates after the initial site visit. Everything is broken down clearly so you can budget with confidence.
Do I need to worry about foundation issues before adding a new unit?
Yes, it’s a key step in the planning process. Ignoring underlying foundation problems can lead to costly structural repairs later. That’s why many ADU projects begin with a professional foundation inspection and repair.
How long does installation take from start to finish?
Most projects take between 6 and 10 months, depending on material availability, size, and complexity. This includes design, permitting, and construction. Our expert ADU builder in Hayward provides a full timeline upfront and keep you informed throughout the process.
Are permits required?
Yes, all ADUs require permits and inspections from the city of Hayward. Our team manages this entirely, from application to approval, so you don’t have to worry about paperwork or delays.
Can I add an ADU on any residential lot in Hayward?
Most single-family and multi-family lots in are eligible, but certain zoning and setback rules apply. We conduct a feasibility review during your consultation. If your lot has restrictions, we’ll advise on the best path forward.
What Our Clients Have To Say
Their positive experiences and glowing testimonials reflect our commitment to delivering exceptional results and outstanding service every time.
Contact Us Today!
Geico Builders is the trusted ADU builder in Hayward, known for quality design, expert construction, and seamless project delivery. Contact us today for a free consultation!