Trusted since 2001 · Same-day response for emergencies · Call 951-458-6466
In Business
Rated
Contractors
Liability Coverage
Satisfaction Guaranteed
Who They're For and What They Solve
An accessory dwelling unit is a self-contained residential structure built on the same lot as a primary home. It includes its own entrance, kitchen, bathroom, and sleeping area. ADUs can be detached from the main house, attached as an addition, converted from an existing garage, or carved out of interior square footage.
Homeowners typically pursue ADU construction when a family member needs nearby housing without full cohabitation, when a property has underutilized space that could generate rental income, or when a lot has room for a second structure that increases long-term property value. The decision is usually planned months in advance and involves zoning review, design, and permitting.
Without a properly permitted and constructed ADU, homeowners risk code violations, unpermitted structures that complicate future sales, and missed income potential. A well-built ADU adds a legal, livable unit to your property, one that can house family, generate rent, or serve as a dedicated workspace for years to come. If you are still in the research phase, our ADU planning guide, walks through every decision from lot assessment to permit filing.
Our Services
Mr. Local Services builds all four primary ADU types — each designed for a different lot configuration, budget, and living need.
A fully standalone structure built in the backyard, separate from the primary home. DADUs offer the most privacy and design flexibility. We handle foundation, framing, utilities, and interior finish, delivering a complete independent living unit on your existing lot.
An addition connected directly to the primary home, sharing at least one wall. Attached ADUs are ideal when lot space is limited but the existing footprint allows expansion. We design the addition to match the primary structure's architecture and tie into existing utility systems cleanly.
An existing attached or detached garage transformed into a fully permitted living space. This is often the most cost-effective ADU path. We assess structural integrity, add insulation, install plumbing and electrical, and deliver a finished unit that meets residential building code.
A self-contained unit created within the existing walls of the primary home, typically from a bedroom, bonus room, or basement. JADUs require no new construction footprint and are permitted under specific interior conversion guidelines. We handle the full conversion from assessment to final inspection.
Not sure which type fits your lot and goals? We assess your property first and recommend only what makes sense, no upsells.
Why Homeowners Choose Mr. Local Services
Most contractors specialize in one format. We build detached, attached, garage conversion, and junior ADUs, so your project never gets handed off or turned away based on type.
We file every permit, coordinate inspections, and handle zoning compliance from start to finish. You never stand in a permit line or decipher a zoning code on your own.
Every estimate is written, itemized, and delivered before work begins. No change orders without your written approval. Fixed-price contracts available on qualifying projects.
GC license on file. $2M general liability. Workers' compensation on every crew member. Your property and your investment are protected from day one.
How It Works
Call 951-458-6466 to schedule your assessment. We evaluate your lot, discuss your goals, and identify which ADU type fits your property and budget.
We produce construction drawings, submit permit applications, and manage all zoning correspondence. Most permits are filed within two weeks of design approval.
Licensed crew begins on your confirmed start date. Weekly progress updates keep you informed at every milestone, foundation, framing, rough-in, and finish.
We schedule and pass all required inspections. You receive a fully permitted, move-in-ready ADU with all documentation for your records.
Pricing
ADU construction costs vary based on type, size, site conditions, and finish level. Here is an honest range:
Junior ADU (JADU)
$40,000 – $80,000
Garage Conversion
$60,000 – $120,000
Attached ADU
$100,000 – $200,000
Detached ADU (DADU)
$150,000 – $300,000+
We provide a written, itemized estimate after your free lot assessment, so you have real numbers before committing to anything.
Timeline depends on type and permit processing. Garage conversions typically run 6–10 weeks. Detached ADUs average 4–6 months from permit approval to move-in.
Yes. All ADU types require building permits. Unpermitted units create legal and resale complications. We manage the full permit process for every project.
A DADU is a fully detached structure built on your lot. A JADU is created within your existing home's footprint, typically from a bedroom or bonus room. Both are legal ADU types with different cost profiles.
Yes. A properly permitted ADU can be rented independently. Many clients recover construction costs within 5–8 years through rental income, depending on unit size and local rental rates.
Design, permit filing, full construction, inspections, and final documentation. We manage every phase. You do not coordinate between separate contractors. Call 951-458-6466 to confirm what is included for your specific project type.
Yes — ADUs and primary home builds can be sequenced or combined. If your project involves a full ground-up primary residence, our custom home builder every construction type we offer alongside ADU work. To see our full range of services, visit our main services page.
Call 951-458-6466 and we schedule a free consultation within 48 hours. No commitment required — just a real conversation about your build.
Schedule your free lot assessment today. We will evaluate your property, identify the right ADU type, and give you a written estimate, no obligation, no pressure.
