







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateTrusted Garage Conversion Contractor for Pasadena Homeowners
Converting a garage into livable square footage in Pasadena means dealing with permits, setback rules, and older foundations that haven’t been touched since the house went up. Most homeowners we meet in Bungalow Heaven or Madison Heights have already talked to at least one Garage Conversion Contractor - Pasadena who made the price sound soft, then sharpened it after the slab was open. Fielding ADU Pasadena does it differently. We hand you a written price before any work starts, pull permits by the book through the City of Pasadena, and back the finished conversion with the Garrison Standard: a written 365-day guarantee. If something fails inside that year, we return and fix it at no charge. Call (626) 657-5541 and you’ll get a live person, any hour.
Garage Conversion Permit

A Garage Conversion Permit is the legal authorization from the City of Pasadena to change a garage from vehicle storage or unconditioned space into a habitable room. Most garage conversions in Pasadena require a building permit, and many also need plan check review, a zoning clearance for setback compliance, and sometimes an electrical or plumbing subpermit. Reed Calloway and the Fielding ADU Pasadena team handle the full permit package: drawings, submittal, plan check corrections, and final inspection. Permit fees in Pasadena for a straightforward garage conversion typically run between $2,500 and $6,000 depending on scope, with the conversion itself usually landing between $90,000 and $150,000 before finishes.
Plan Check and Corrections
Pasadena’s plan check reviewers look closely at egress windows, ceiling height, and electrical load. We manage every correction cycle, so you’re not the one chasing the Building & Safety office.
Final Inspection and Sign-Off
We don’t walk away after the last sheet of drywall. We stay until the final inspection passes and the permit card is signed off, which protects your title when you eventually sell.
Garage Conversion to Living Space
A Garage Conversion to Living Space changes an underused garage into a conditioned room that actually feels like part of the house, with insulation, drywall, flooring, electrical, and heating or cooling tied into the existing systems. This is the right move when you need a playroom, a den, or extra square footage without the footprint of an addition. Fielding ADU Pasadena prices a standard one-car conversion to living space in Pasadena at roughly $80,000 to $120,000, depending on finish level and how much of the existing slab and framing can be reused. The price goes in writing before we start, and it stays there.
Insulation and Comfort
Garages in Pasadena were never built for comfort. We address the slab, the walls, and the roof plane so the room holds temperature instead of leaking it into the alley.
Ceiling Height and Natural Light
Pasadena’s older garages often have 7-foot ceilings or no window on the street side. We work through the options, including raising portions of the structure or reframing for egress windows, before you commit to a number.
Garage to Bedroom Conversion

A Garage to Bedroom Conversion takes the same square footage and turns it into a legal sleeping room with proper egress, a closet, smoke and carbon monoxide detection, and enough light and ventilation to satisfy Pasadena code. This is one of the most popular conversions we do in neighborhoods like Normandie Heights, where a third bedroom changes how the whole house works for a growing family. We also serve as a Garage Conversion Contractor - San Marino for nearby families with similar needs. A garage to bedroom conversion in Pasadena generally costs $90,000 to $140,000, which covers the permit, structural work, insulation, drywall, flooring, electrical, and the egress window. We give you that price in writing before the first day of work.
Egress Requirements
A bedroom has to have a window large enough for a person to exit through and for a firefighter to enter with gear. We handle the opening, the sizing, and the final inspection with code in mind from day one.
Closet and Storage
Code doesn’t require a closet, but every buyer and every parent does. We design the room so storage doesn’t eat the usable floor space, even in a tight one-car footprint.
Garage Conversion ADU
A Garage Conversion ADU is a full accessory dwelling unit built into the shell of an existing garage, with its own kitchen, bathroom, separate entrance, and addressable living space. Under California state law and Pasadena’s local ordinance, converting garage square footage into an ADU is usually faster and less expensive than building a detached unit from scratch. Fielding ADU Pasadena handles garage conversion ADUs in Pasadena from permit to final, with typical costs running $120,000 to $180,000 for a one-bedroom unit depending on site conditions and the level of kitchen and bath finish. As a Garage Conversion Contractor in Temple City, we bring the same expertise to neighboring communities. We also work with prefab and modular systems like Abodu and Cover when the lot or the timeline calls for it.
Connecting to Utilities
An ADU needs its own electrical panel or a subpanel, plus water and sewer connections that meet Pasadena’s current standards. We scope that work in the written estimate, not as a change order after framing starts.
Separate Address and Metering
If the unit will be rented, Pasadena requires a separate address for emergency response and sometimes separate utility metering. We coordinate those details with the city so the unit is legal to rent, not just legal to build.
Garage Apartment Conversion

A Garage Apartment Conversion is the same as a Garage Conversion ADU in most respects, though the term usually means the finished unit is intended as a long-term rental or a multigenerational suite rather than a guest room or home office. In East Pasadena and the neighborhoods south of the 210, we see a lot of homeowners converting detached garages into apartments for aging parents or adult children. As a Garage Conversion Contractor in Arcadia, we help families across the San Gabriel Valley with similar multigenerational projects. Expect a Pasadena garage apartment conversion to land between $130,000 and $190,000, with the final number driven by kitchen size, bathroom count, and how much of the existing structure can be kept. Reed Calloway walks every estimate personally, and the number you approve is the number on the final invoice.
Sound Separation
A rental unit above a garage or attached to the main house needs proper wall and floor assemblies so the tenant’s kitchen doesn’t wake the family at 6 a.m. We specify the right assemblies for Pasadena’s code and for real life after move-in.
Durable Flooring and Finishes
Rentals take abuse. We steer clients toward flooring and wall finishes that hold up under tenant use and still look right when the unit turns over years later.
Brands We Service
Fielding ADU Pasadena has hands-on experience with Abodu units, which arrive as prefabricated modules that we prep, set, and finish on Pasadena lots that can accommodate the crane and delivery envelope. We manage the foundation, utility connections, and city inspections around the factory build so the permit stays clean from the first submittal.
We also install and finish Cover panelized ADUs, which are popular in Pasadena for their precision wall systems and faster dry-in times. And for conventional garage conversions where prefab isn’t the right fit, we build with James Hardie siding and fiber-cement trim, which stands up to Pasadena’s summer heat better than wood and requires less maintenance than stucco over the long haul. Whether your project suits Abodu, Cover, or a stick-built conversion with James Hardie finishes, we can match the right method to your lot and your budget.
Signs You Need a Pro Right Now
- The garage has already been “finished” once. We see a lot of Pasadena homes where a previous owner threw up drywall and carpet without a permit. If you plan to rent or sell, unpermitted work becomes a title problem. A pro can assess what’s salvageable and what has to be redone.
- Floor cracks run wider than a quarter inch. Older Pasadena garage slabs shift with clay soil expansion and contraction. A crack that wide usually means the slab isn’t a suitable base for framing a living space until it’s addressed.
- The roof sags or the lintel over the door is split. Garage door openings carry a lot of load, and older headers sometimes weren’t sized for the span. If you see a dip in the roofline, get it looked at before anyone hangs drywall under it.
- You can smell car exhaust or dampness inside. Fuel smells mean the slab is holding hydrocarbons from years of parking. That’s a standard part of a garage conversion and needs sealing or topping before flooring goes down. Damp is a different problem, usually drainage related, and it won’t fix itself.
- The city sent a notice about unpermitted work. Pasadena’s code enforcement is active, especially on rental properties and recent sales. If you’ve received a correction notice, start with a contractor who pulls permits by the book, not one who works around them.
Our Process, Step by Step
- 1
Site walk and written estimate. Reed Calloway or a senior Fielding ADU Pasadena lead walks the garage with you, checks the slab, the framing, the electrical service, and the lot lines. Then you get a line-item price in writing, before any work starts.
- 2
Design and permit package. We prepare the drawings, structural calcs, and Title 24 energy documents, then submit the full package to the City of Pasadena. We track the plan check and answer every correction until the permit is issued.
- 3
Demolition and structural work. The garage door comes out, the slab gets addressed, and we frame the new walls, the egress openings, and any roof modifications. This is where we find what the last fifty years left behind, and we handle it without changing your price.
- 4
Systems and finishes. Electrical, plumbing, insulation, drywall, flooring, paint, and trim go in. Our crew is background-checked and uniformed, so you know exactly who is on your property and what they’re doing there.
- 5
Final inspection and walkthrough. We meet the Pasadena inspector for the final sign-off, then walk the finished space with you room by room. If anything inside the 365-day guarantee window fails after that, we return at no charge.
How Much Does Garage Conversion Contractor Cost in Pasadena?
A typical garage conversion in Pasadena runs $90,000 to $150,000 for a one-car space, with a two-car or detached garage conversion landing between $120,000 and $190,000. That range covers permits, structural work, insulation, drywall, electrical, flooring, and a basic bathroom or kitchenette depending on the project type. The final number moves on a few things: the condition of the existing slab and framing, how much the city wants for the permit package, whether the sewer line needs to be dug up and extended, and the level of finish you choose. A kitchen with custom cabinets and stone counters costs more than a wet bar with stock fixtures. Same for tile versus vinyl plank.
The way to keep a Pasadena garage conversion inside your budget is to get a written line-item estimate before you sign anything, and to ask exactly what happens when the framing reveals a crack in the slab or a header that isn’t sized right. Our answer is that we cover it within the written price whenever the condition was reasonably foreseeable, and we put that in plain English in the estimate. A free estimate from Fielding ADU Pasadena includes the site walk, the measurements, and the written number, with no obligation and no follow-up pressure. You know the price before a single nail is driven.
Our Service Area Near Pasadena
Fielding ADU Pasadena performs garage conversion work throughout Pasadena, including Bungalow Heaven, Madison Heights, Oak Knoll, and Hastings Ranch. We also cover nearby communities like Burbank, Arcadia, South Pasadena, La Cañada Flintridge, and Temple City. For conversion work in the San Gabriel Valley corridors, San Marino, Highland Park, Montebello, Pico Rivera, South El Monte, East San Gabriel, South San Gabriel, and Mayflower Village all fall within our regular routing. Response time for an estimate visit inside Pasadena is typically one to three business days depending on your street and the time of year.
Serving Pasadena, CA - Our Local Coverage Area
We’re based in the Pasadena area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Garage Conversion Contractor in Pasadena
A garage conversion contractor handles the full change from garage to habitable space, including permits, structural work, insulation, drywall, electrical, plumbing, flooring, and final inspection. Fielding ADU Pasadena handles all of it under one written price and one written guarantee. Call (626) 657-5541 to walk through your specific garage with Reed Calloway.
Most garage conversions in Pasadena take three to five months from the day we submit permits to the day of final inspection. The city’s plan check timeline and the scope of the kitchen or bathroom are the two biggest variables. We give you a schedule in writing with your estimate so you can plan around it.
A typical one-car garage conversion in Pasadena runs $90,000 to $150,000, while a two-car or detached conversion lands between $120,000 and $190,000 depending on finishes and site work. That includes permits, structural, insulation, drywall, electrical, flooring, and basic wet-area work. Call (626) 657-5541 for a written line-item quote, free of charge.
Yes. Fielding ADU Pasadena has experience with Abodu and Cover prefab systems, and we also handle conventional builds using James Hardie siding and trim. The right choice depends on your lot access, your budget, and what Pasadena will approve on your specific property.
Garage conversions are planned construction, not emergency repair, so we don’t dispatch same-day crews for conversion starts. That said, our phones are answered by a live person 24 hours a day, seven days a week. If you have an urgent structural concern in your garage, call (626) 657-5541 and we’ll tell you straight whether it’s safe to wait for a scheduled visit.
Every garage conversion we build is covered in writing for a full year under the Garrison Standard. If something fails inside those 365 days, we return and correct it at no charge. No fine print, no service fee, no argument about whether it’s covered.
Clear enough space so we can walk the full perimeter of the garage and see the slab, the walls, and the roofline. Have any old photos of the property or prior work on hand if you have them. And write down your top three goals for the space, whether that’s a rental unit, a bedroom, or a home office.
Schedule Your Garage Conversion Contractor Service in Pasadena Today
You’ve already dealt with a contractor who moved the price or left the permit board empty. Fielding ADU Pasadena puts the number in writing before any work starts, pulls the permit by the book, and stands behind the finished conversion for a full year. Call (626) 657-5541 to schedule your free, no-obligation estimate with Reed Calloway and the Fielding ADU Pasadena team. A live person answers, any hour, every day.
Written by Reed Calloway, Owner at Fielding ADU Pasadena, serving Pasadena and the surrounding San Gabriel Valley since 2006.




