







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Room Addition Contractor Across Burbank
Adding a room to a Burbank home costs $180 to $420 per square foot for conventional stick-built work, with most single-room additions landing between $85,000 and $165,000 before permit fees. That’s the honest range we quote at Fielding ADU Pasadena, and the price goes in writing before we touch a single stud. We serve all of Burbank, from the flat ranch blocks off Victory Boulevard to the hillside lots in the Rancho and Burbank Hills neighborhoods, and we answer our own phone at (626) 657-5541 around the clock.

Burbank is not Pasadena or Glendale. The housing stock is older, the lots in the Rancho carry equestrian rules nobody else in Los Angeles County has to deal with, and the foothill fire zones change what materials you can legally put on a wall. If you’ve already had a contractor miss the schedule or move the number at the door, you’ll notice the difference in how we work: written price first, permits pulled by the book, and a one-year written guarantee on everything we build. Reed Calloway leads our team, and he holds every project to The Garrison Standard that’s been in place since 2006.
Why Fielding ADU Pasadena Is Burbank’s Preferred Room Addition Contractor Company

Burbank homeowners deal with building rules that most contractors in the San Fernando Valley never see. The Rancho’s Equestrian Overlay Zone is the big one. It means a room addition on a larger lot has to leave space for horse-keeping, and that changes where your walls can go, how drainage is graded, and how the county reviews your plans. We know the rule because we’ve built under it. When we scoped a 450 sq ft room addition off a 1950s ranch on Griffith Park Drive in the Rancho, our crew had to work around the Equestrian Overlay requirement for a 24-ft horse run along the rear setback. We negotiated the county’s septic clearance by moving a proposed bathroom 6 feet off the leach field and specified James Hardie fiber-cement siding for the fire-prone hillside, finishing with a drought-tolerant gravel buffer that satisfied defensible-space rules without sacrificing a usable yard.
That’s the kind of site-specific problem you cannot solve from an office in another county. We’re the Room Addition Contractor team that shows up in the window we give you, hands you a line-item price before work starts, and documents every permit decision so you never get a red tag surprise. Burbank customers call us because they want the job done to code, not done over.
Scheduling and dispatch for our Burbank work are coordinated from our Los Angeles metro office, and our crews live and work locally in the Burbank area. Every technician on your property is background-checked and in uniform. You know exactly who is on your site, and a live person answers the phone 24/7 if you call (626) 657-5541 at noon or midnight.
Room Additions in Burbank
Room additions in Burbank come in two flavors: attached additions that extend off the existing structure, and detached additions that sit in the backyard as a separate building. Most Burbank homes are 1940s-1960s ranch and Spanish-style houses on lots between 6,000 and 7,500 square feet, which means an attached addition of 300 to 500 square feet is the most common request we see. A bedroom with a bathroom typically runs $95,000 to $140,000 in this market. A larger family room or primary suite addition of 500 to 700 square feet runs $140,000 to $210,000. Those numbers assume standard finishes, a flat or gently sloped lot, and no major foundation work.
The cost shifts fast when the lot is in the foothills. Steep lots require retaining walls, stepped foundations, and sometimes geological reports. Hillside grading limits apply, and unapproved cut-and-fill will fail drainage review and invite erosion fines during the first Santa Ana rain. We scope all of that before quoting, so the price you approve on day one is the price on the final invoice.
Attached Additions on Standard Burbank Lots
A flat lot in the Magnolia Park or Chandler Park neighborhoods is where attached additions move fastest. The foundation work is simpler, access is direct from the street or driveway, and the permitting path is routine. A 400 sq ft bedroom and bath on a flat ranch lot typically finishes in 10 to 14 weeks from permit approval to final inspection.
Hillside and Rancho Property Additions
Once you cross into the Rancho or the Burbank Hills, every addition is a custom job. Setbacks, equestrian buffer requirements, fire-resistant siding, and drainage all interact. We coordinate with Los Angeles County for septic and well clearances on acreage parcels inside the city of Burbank, and we never let framing start until the county health department has signed off on the plan.
Modular Home Addition in Burbank
Modular home additions in Burbank are a practical alternative to months of stick-built construction, especially on lots where the weather windows are tight. A modular addition is built off-site in a factory, trucked to your property, and set on a prepared foundation. In Burbank’s market, a modular room addition of 300 to 600 square feet typically runs $110,000 to $190,000 delivered and set, depending on the platform and the site prep involved. The advantage is a shorter on-site timeline, sometimes as little as 6 to 10 weeks from groundbreak to final, and factory-level quality control on framing and insulation.
We work with several modular and prefab platforms you may already be researching: Cover, Dvele, and Mighty Buildings. We also build conventional additions using James Hardie siding. The right method depends on your lot, your budget, and whether you’re on flat land or a hillside with limited crane access.

Prefab Panel Systems for Burbank Lots
Panelized systems like Cover and Dvele ship wall and floor sections flat, which makes them easier to stage on Burbank’s narrow residential streets. On a standard 50-ft-wide lot, we can unload and set panels without shutting down your neighbor’s driveway. The finished envelope is then clad to match your existing house, with Hardie siding as the standard choice in foothill fire zones.
Volumetric Modules and Site Constraints
Fully assembled volumetric modules, like the ones Mighty Buildings produces, save the most on-site labor but require a crane and clear access. On a flat Burbank lot with a wide side yard or a long driveway, this works well. On a hillside lot with no paved driveway, the crane costs climb and the access path has to be engineered. We quote the full site prep, crane, and foundation as one number, never as an open-ended add-on.
Trusted Brands We Service in Burbank
Burbank homeowners regularly ask us about specific prefab systems they have seen online, and we handle the real-world installations behind those brands. We are fluent with Abodu, Cover, Dvele, Mighty Buildings, Boxabl, and Plant Prefab, and we stock the common parts and hardware those systems need for Burbank jobs: fire-rated sheathing, Hardie trim, seismic hold-downs, and the flashing details required by Los Angeles County inspectors. If you have already placed a deposit with a factory, we can step in as the local contractor of record and manage the foundation, utilities, and finish work.
Common Room Addition Contractor Problems We See in Burbank Homes
- Septic and well setbacks: Adding a bedroom or bath too close to a private well or septic tank triggers county health department rejection after framing has started. We check the well log and leach field location before we draw the plans, and we move walls or fixtures early, not after the lumber is up.
- Equipment access on acreage: No paved driveway means material staging on a narrow right-of-way, and long hauls from the street inflate labor time. We price access realistically, including temporary road mats or crane pads where the lot demands them, and we tell you what it costs before you sign.
- Hillside grading and drainage: Burbank’s foothill lots carry grading limits that catch homeowners off guard when they do unapproved cut-and-fill. We run the drainage review up front and design the addition to work with the existing slope, not against it.
- Equestrian Overlay surprises: In the Rancho, any addition has to account for horse-keeping provisions. That changes setbacks and usable yard space in ways a generic contractor won’t catch until the city flags the plan. We build around the overlay from the first site visit.
Pricing for Room Addition Contractor in Burbank, CA
Here are the ranges we quote for Burbank specifically. A conventional attached room addition runs $180 to $320 per square foot, depending on finish level and site conditions. A modular room addition runs $230 to $420 per square foot installed. A detached room addition or small ADU-sized structure runs $280 to $420 per square foot. Garage conversions in Burbank typically run $85,000 to $145,000 before permit fees.
What moves the price in Burbank specifically: hillside grading, Equestrian Overlay compliance in the Rancho, septic or well clearance on acreage parcels, and fire-resistant material requirements in the foothill zones. Every quote includes the full line-item breakdown, and the number you approve on day one is the number on the final invoice. Call (626) 657-5541 to schedule a free estimate. We hand you the written price before any work starts, with no exceptions.
We Also Serve Cities Near Burbank
Our crews regularly work in Pasadena, San Marino, Temple City, and Montebello. If you’re searching for a Room Addition Contractor in Burbank but your property sits just over the city line, we likely cover it. Call (626) 657-5541 and we’ll confirm the service area and get a site visit on the calendar.
Serving Burbank, CA - Our Local Coverage Area
We’re based in the Burbank area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Room Addition Contractor in Burbank
Yes. The Equestrian Overlay Zone in the Rancho requires additions to preserve horse-keeping capacity on the property, which means your setback and layout will be reviewed against those rules. A bedroom or bathroom may need to shift several feet to keep the required horse run clear along the rear setback. Call (626) 657-5541 with your address and we’ll tell you if the overlay applies to your lot before you spend a dollar on design.
Los Angeles County health code typically requires a minimum horizontal distance of 5 to 10 feet between a leach field and any new structure, and 5 feet from a septic tank, but the exact number depends on your lot’s perc test and the county’s current Standard Plan. We check the existing well and septic records before drawing anything, because guessing wrong means redesign fees and permit resubmission. Call (626) 657-5541 and we’ll pull your property’s records as part of the free estimate.
Burbank’s foothill and wildfire-adjacent zones require Class A fire-rated roofing, non-combustible siding, and ember-resistant vents. James Hardie fiber-cement siding is the standard choice we specify on hillside additions, with fire-rated sheathing underneath. We also maintain the required defensible-space clearing around the new structure. Call (626) 657-5541 if you’re in the Burbank Hills and want to know what your specific lot requires.
Yes, but it changes the access plan and the price. Without a paved driveway, we need to stage materials on a temporary road surface, and for volumetric modules we may need a crane pad installed and removed. We scope access before quoting, and the access cost is in the written price, not tacked on later.
Yes, a garage conversion to habitable space is treated as a room addition, not a separate ADU, as long as the plumbing and kitchen remain minimal. That means a faster permit path than a full ADU and a lower fee schedule. A 400 sq ft garage conversion in Burbank runs $95,000 to $140,000. Call (626) 657-5541 and we’ll verify the existing garage structure and quote the conversion with permit costs included.
Written by Reed Calloway, Owner at Fielding ADU Pasadena, serving Burbank with written-price room additions and one-year guaranteed work.









