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Choosing an ADU builder is one of the most important decisions you will make when starting your accessory dwelling unit project. The right builder will guide you from design through permitting and construction while keeping your budget, timeline, and long-term goals in mind. The wrong builder can lead to delays, cost overruns, and a stressful experience.
If you are planning an ADU in Sacrament, here is a clear step-by-step guide to help you choose the right builder and ensure a smooth project from start to finish.
Look for an ADU Specialist, Not a General Contractor
ADUs are unique. They require knowledge of California regulations, utility requirements, space constraints, financing programs, and local building codes.
Why specialization matters:
ADUs have different setbacks, height limits, and utility rules compared to standard remodels
Cities like Sacramento, San Jose, and Oakland each have their own ADU requirements
Specialists already have pre-approved plans and systems that speed up permitting
You avoid being the builder’s first ADU experiment
IMKAT Homes advantage:
IMKAT builds ADUs every day and handles the design, permit, and build through a streamlined system created specifically for California homeowners.
Check Experience, Portfolio, and Local Expertise
An experienced ADU builder will have a portfolio of completed units, testimonials, and city-specific knowledge.
When reviewing a builder, look for:
Completed ADUs similar to your vision
Before and after photos
Local permitting experience
An understanding of city rules (setbacks, fire separation, utility runs, etc.)
Ask to see finished projects so you can evaluate real craftsmanship and layout design.
IMKAT Homes advantage:
IMKAT has completed dozens of ADUs across Sacramento, Elk Grove, Folsom, San Jose, Fremont, and surrounding cities, each with a tailored design optimized for the property.
Understand Their Design and Permit Process
A quality ADU builder should offer a clear roadmap:
Property assessment
Custom or predesigned floor plan
Architectural drawings
Structural engineering
Title 24 compliance
City submission
Permit approval
Construction timeline
Ask how long their permits typically take and whether they handle all submissions on your behalf.
Red flag:
If the builder expects you to handle city approvals, stay cautious. Permitting in California can be complex. Most homeowners do not want that responsibility.
IMKAT Homes advantage:
IMKAT manages the entire permit process in-house, from architectural design to final approval.
Compare Transparent Pricing and Detailed Proposals
ADU pricing can vary widely, and many builders provide vague estimates. A trustworthy ADU builder will give you a detailed written proposal, including:
Construction cost breakdown
Site work estimates
Utility connection fees
Allowances for finishes
Contingency plans
Project timeline
Avoid builders who:
Only offer verbal pricing
Refuse to show a line-item breakdown
Pressure you into quick decisions
Hide fees until later in the project
IMKAT Homes advantage:
IMKAT provides transparent, detailed proposals with full cost breakdowns so homeowners know exactly what they are paying for.
Confirm Licenses, Insurance, and Warranty
Before signing with any contractor, verify:
General liability insurance
Workers compensation coverage
Written warranty on workmanship
Clear contract terms
You can check a contractor’s license anytime on the California CSLB website.
IMKAT Homes advantage:
Fully licensed, insured, and bonded, IMKAT also provides a workmanship warranty for your peace of mind.
Ask About Project Management and Communication
ADUs take coordination between subcontractors, inspectors, engineers, and city officials. Strong communication keeps your project on schedule.
Important questions to ask:
Who will be your main point of contact?
How often will you get updates?
Will you have access to a project dashboard or tracking system?
How do they handle delays or unexpected findings?
Review Customer Feedback and Online Reputation
Customer reviews reveal a lot about a builder’s reliability.
Look for feedback on:
Project timelines
Quality of the finished ADU
Communication and professionalism
Budget accuracy
Check platforms like:
Google
Yelp
Houzz
Facebook
Better Business Bureau
Choose a Builder Who Understands Your Long-Term Goals
Whether your ADU is for:
rental income
multigenerational living
aging parents
a home office or guest suite
your builder should help you choose layouts, finishes, and utility placements that support your goals for years to come.
Final Thoughts
Choosing an ADU builder is more than just comparing prices. It requires evaluating experience, transparency, communication, design quality, and local expertise. An ADU is a major investment that will affect your property value, income potential, and living space for decades.
If you want a builder who specializes in ADUs, handles everything from design to final inspection, and delivers a smooth and transparent process, IMKAT Homes is here to help.
Ready to start your ADU?
Get a free property assessment and see which ADU is possible on your lot.
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