Converted garage apartmentBackyard ADU cottageADU built over a garageConverted garage entrance
No replacement parking required (state ADU law)
Tulare County pre-approved ADU plans
Free, no-obligation quotes
Why convert
The square footage is already there
A garage already has a slab, walls and a roof. That is why converting it is usually the most cost-effective way to add a living space in Porterville — compared with building a new detached unit.
Rental income
A permitted ADU can be rented long-term, separately from the main house — steady monthly income from space that now stores boxes.
Room for family
Parents, adult children or a caregiver get privacy and independence — close by, on your own lot.
Usable, permitted space
Finished, permitted living area is more useful than a cluttered garage, and a legal ADU is something future buyers can see on paper.
Porterville & Tulare County
Homes with room to grow
From Porterville's tree-lined older blocks to Visalia's craftsman streets, many Tulare County homes have a garage or a backyard that can become a legal living space.
Two minutes: garage size, your goal, budget and timing.
Call back & site visit
We talk through scope and price, then check the garage in person: slab, roof, walls, power and plumbing routes.
Design & plans
Floor plan, energy (Title 24) and structural details. Tulare County's pre-approved plans can save time in county areas.
Permit review
Plans go to the City of Porterville, Tulare County or your city. Complete ADU applications are generally decided within 60 days.
Build & inspections
Typically 6–12 weeks for a full ADU: framing, plumbing, electrical, insulation, drywall, finishes — with inspections along the way.
Final & move-in
Final inspection and sign-off. Your new space is ready to live in or rent.
Cost guide
What does a garage conversion cost?
Published ranges are wide because projects are so different. A finished room without plumbing costs far less than a full ADU with a kitchen and bathroom.
Unincorporated communities such as Strathmore, Springville, Terra Bella, Woodville and Poplar go through the Tulare County Resource Management Agency, which offers pre-approved ADU plans (Tulare County RMA, ADU permits & pre-approved plans).
Visalia, Lindsay & other cities
Each incorporated city runs its own ADU and building permit process under the same state ADU law. We confirm the right office and checklist for your address.
Ministerial approval — a complete ADU application that meets objective standards is approved without a public hearing, generally within 60 days (same source).
No extra setbacks for an ADU created inside an existing garage of the same size and footprint.
ADU + JADU — a single-family lot can generally have one ADU and one junior ADU.
Impact fees — ADUs under 750 sq ft and JADUs are exempt from impact fees under state law.
FAQ
Garage conversion questions, answered
Is a garage conversion legal in Porterville?
Yes, with permits. California ADU law allows ADUs created by converting an existing garage, and complete applications are reviewed ministerially, without a public hearing. Inside city limits the City of Porterville issues the permits (City of Porterville, Accessory Dwelling Units); in unincorporated Tulare County it is the County RMA (Tulare County RMA, ADU permits & pre-approved plans).
Do I have to replace the parking I lose?
Generally no. Under state ADU law a city or county cannot require replacement parking when a garage is converted to an ADU (California HCD, ADU Handbook (PDF)).
How much does a garage conversion cost?
It depends mostly on whether you add a kitchen and bathroom. CustomHome puts basic conversions (office, bedroom) at about $25,000–$55,000 and full garage-to-ADU conversions at about $65,000–$200,000+ in California (CustomHome, garage conversion cost in California); ADU West Coast cites about $50,000–$100,000 for a typical garage ADU (ADU West Coast, garage conversion guide). A site visit gives you a real number.
What is a JADU?
A junior accessory dwelling unit is a unit of up to 500 sq ft created inside a single-family home — including an attached garage — with an efficiency kitchen. It can share a bathroom with the main house, and the owner must live on the property.
How long does a garage conversion take?
Typically a few weeks of design and plans, then permit review (state law generally gives 60 days for a complete ADU application), then about 6–12 weeks of construction for a full ADU. A simple finished room is faster.
Can I rent out a converted garage?
A permitted ADU can be rented separately from the main house. State law allows cities to require that rentals be longer than 30 days, so short-term rental rules depend on your city.
Do I need to stay out of the house during construction?
Usually not. Most work happens inside the garage; there are short periods with noise, a utility shut-off or a tie-in to the main house.
Which areas do you cover?
Porterville, Lindsay, Strathmore, Springville, Terra Bella, Visalia, Tulare, Exeter, Woodville, Poplar and the rest of Tulare County.
