Garage Conversion Services — Hollister

JADU & ADU garage conversions for Hollister homeowners

Garage-to-JADU, garage-to-ADU, home office and in-law suite conversions in Hollister — permitted, Title 24 compliant, and built around the city's larger lots and more rural surroundings.

Get a Free Quote Call (408) 442-9136

Local Knowledge

Garage conversions built around Hollister's larger lots and rural character

Hollister sits in San Benito County, outside the denser Santa Clara County cities most of our work is in, and that shows up in the housing stock — larger lots, more properties with agricultural surroundings, and in some cases well or septic systems rather than full municipal hookups on the outer edges of town. The city's plan check department also handles a notably lower volume of ADU and JADU submittals than the bigger South Bay cities, which can mean a more personal, if sometimes slower-paced, review process. We confirm your property's specific utility setup and the city's current process before scoping a project.

Services in Hollister

What we build for Hollister homeowners

Garage-to-JADU Conversion

Convert your attached Hollister garage into a Junior ADU within your home's existing footprint — simpler permitting, shared utilities, up to 500 sq ft.

Garage-to-ADU Conversion

A full accessory dwelling unit with independent utilities, built out from your existing attached or detached garage in Hollister.

Garage-to-Home Office / Studio

A quiet, code-compliant workspace built into your Hollister garage, without triggering dwelling-unit permitting.

Detached Garage Conversion

Standalone Hollister garages converted into a backyard ADU, studio or guest unit, with new utility runs sized for the finished space.

Our Process

How a Hollister garage conversion moves from design to final inspection

Design & Feasibility Review

We evaluate your Hollister garage's slab, framing and ceiling height against what you want to build, and confirm your lot's setback and coverage rules.

Permits & Title 24 Compliance

We prepare and file your permit package with Hollister's building department, including Title 24 energy calculations, and manage plan check corrections.

Construction & Rough-In

Framing, insulation, electrical, plumbing and HVAC rough-in built to the approved plans.

Final Inspection & Handoff

We schedule and walk through final inspection with Hollister, then hand you a finished, permitted space.

Why Hollister Homeowners Choose Us

Hollister homeowners come to us because their property is often larger and more rural in character than a typical suburban lot, and they want a contractor who checks utility setup and local process rather than assuming a South Bay city's playbook applies.

JADU & ADU permitting specialists

We know the difference between a JADU and an ADU cold, and scope your project to the one that actually fits your goals.

Licensed, bonded & insured

Full California contractor's license and insurance coverage — ask to see it.

We know Hollister's specific rules

Hollister's lower plan-check volume and more rural property character mean a different process than denser South Bay cities — we confirm the specifics before scoping.

We evaluate what's already there

Existing garage slabs, framing and rooflines aren't automatically reused or automatically torn out — we assess what's structurally sound first.

Service Areas

Also converting garages nearby.

Based in San Jose, working throughout Santa Clara, San Mateo and southern Alameda counties.

Atherton Belmont Campbell Cupertino Dublin East Palo Alto Foster City Fremont Gilroy Hayward Hollister Los Altos Los Altos Hills Los Gatos Menlo Park Milpitas Morgan Hill Mountain View Newark Palo Alto Pleasanton Redwood City San Carlos San Jose San Mateo Santa Clara Saratoga Sunnyvale Union City Woodside

FAQ

Questions homeowners ask us

Yes — Hollister is outside our core Santa Clara County service area, but we take on projects there, confirming coverage and any San Benito County-specific requirements before we start.

A JADU stays within your garage's existing footprint, is capped at 500 square feet, and can share utilities with the main house — usually a simpler, faster permit. An ADU can be larger or detached, requires independent utilities, and has no owner-occupancy requirement.

Many are, particularly on larger or more rural parcels, and that changes what's involved in bringing independent utilities to a converted garage for a full ADU. We confirm your property's utility setup during the site walk.

Yes — we prepare the Title 24 energy calculations and CF1R documentation as part of every permit package, and manage plan check correspondence directly with the city so you're not the one interpreting correction letters.

Free, No-Obligation Quote

Let's talk about your garage.

Tell us what you're converting it into — a JADU, an ADU, an office — and we'll get back to you with next steps, usually within one business day.

(408) 442-9136