Fast, Reliable Home Addition Contractor Across Citrus
Adding onto a home in Citrus means working with LA County, not a city building department, and that changes how the job gets permitted, priced, and built. We know the county’s online submittal portal, the Fire Hazard Severity Zone triggers that apply near the foothills, and the septic and well setbacks that shape additions on larger Citrus lots. If you’re planning a room addition, second story, or bump-out, call (707) 383-5338 and we’ll walk you through what applies to your specific parcel before you spend a dollar on plans.

Why Seedling ADU Builders Is Citrus’s Preferred Home Addition Contractor Company
Most Citrus homeowners find out the hard way that there’s no city counter to walk into. Every permit goes through LA County Building & Safety’s online portal, and discretionary items route to the Department of Regional Planning downtown. Our team has submitted enough Citrus projects to know exactly what the county reviewers flag, which saves weeks of back-and-forth and prevents redesigns after plan check. Ben Ortega leads every Citrus project personally, and he reads county comment letters the same day they arrive, not days later.
Citrus customers tell us the same thing after a build wraps: the crew treated the house like it was their own. Shoe covers went on before any interior work. Drop cloths covered the floors. The clean-up photo arrived before the crew pulled out of the driveway. That’s the Cedarwell Care Promise, and it’s written into every contract. Background-checked, uniformed technicians do the work, and a live person answers the phone 24/7 during an active build. No voicemail trees. No “we’ll call you back tomorrow.” If something comes up at 9pm, you reach a person.
Second Story Addition Contractor in Citrus
A second story addition in Citrus is a serious structural undertaking that requires county-approved engineering, a full set of LA County Building & Safety plan checks, and often a Fire Hazard Severity Zone review if your lot sits near the San Gabriel Mountain foothill edge. This job involves reinforcing the existing first-floor walls and foundation, adding a staircase, extending plumbing and electrical vertically, and re-roofing the entire structure to meet current code. A typical second story addition in Citrus runs $180,000 to $320,000 depending on square footage, bathroom count, and whether the existing foundation needs retrofit work.
What the County Checks on a Second Story
LA County reviewers focus on shear wall placement, hold-down hardware, and roof-to-wall connections. On an older 1950s ranch, the original foundation often needs new footings under the point loads, and that’s a line item we quote up front, not after demolition starts. If your Citrus lot falls inside the mapped Fire Hazard Severity Zone, expect Class A roofing and ignition-resistant siding requirements on the new upper level.
Living Through a Second Story Build
Most families stay in the home during the first-story reinforcement phase, then adjust once the stairwell opens and the upper floor framing starts. We sequence the work so bedrooms stay usable through as much of the project as possible, and we run quiet tools during school hours when there are kids doing remote learning. The floors get drop cloths every day, and the clean-up photo comes before the crew leaves.
Garage Addition Contractors in Citrus
Garage addition work in Citrus typically means either expanding a detached single-car garage from the 1950s and 60s into a larger shop or living space, or building a new attached garage where the old carport sits. Many Citrus lots run 8,000 to 12,000 square feet, which gives you room for a full garage addition without eating the entire yard. A standard attached two-car garage addition in Citrus runs $65,000 to $110,000, while a detached garage addition with a finished interior and electrical service starts around $85,000 and can reach $140,000 with insulation and drywall.
Detached Garage Conversions and JADUs
Those old detached single-car garages scattered across Citrus are logical JADU conversion candidates. The county allows converting an existing garage into a Junior ADU with its own entry, a small kitchenette, and a bathroom. This path often avoids the full setback requirements that apply to new detached structures, which matters when your leach-field or well setbacks already crowd the buildable area. We’ve converted several Citrus garages into living space that passed county inspection on the first walkthrough. If you’re looking for ADU Builders - Citrus, our experience with these conversions is a good fit.
Septic and Well Setbacks on Citrus Acreage
If your Citrus parcel is on septic and well, the county requires new structures to stay outside designated setback lines from both the leach field and the well head. An unverified footprint gets rejected at plan check and forces a costly redesign. We confirm these setbacks with a site survey before we quote, so the number you sign matches the project that actually gets built.

Trusted Brands We Service in Citrus
We work with the materials and prefab systems Citrus homeowners already research before calling anyone: James Hardie siding for ignition-resistant exteriors in Fire Hazard Severity Zones, Abodu and Cover for prefab ADU structures that speed up the county inspection timeline, and Dvele for high-performance modular builds on larger acreage lots. Our team has hands-on install experience with each system, so you’re not paying us to learn on your project. If the county flags a detail, we know how to address it from past builds in Citrus.
Common Home Addition Contractor Problems We See in Citrus Homes
- Calling “the city” for plan check. Citrus has no incorporated municipal government, so there’s no city building department to call or visit. Every submittal goes through LA County’s online portal, and discretionary items go to Regional Planning downtown. Homeowners who start by calling the wrong agency lose weeks.
- Missing the Fire Hazard Severity Zone triggers. Portions of Citrus fall within LA County’s mapped Fire Hazard Severity Zones. Additions inside these zones need ember-resistant vents, Class A roofing, and ignition-resistant siding. A bid that ignores these requirements comes back with a change order later.
- Bidding before confirming septic and well setbacks. On acreage lots, the leach field and well head have mandatory setback lines that shape where any addition can go. We see plans get bounced at county plan check because the designer never verified the setbacks.
- Underestimating long material hauls. Citrus sits at the foothill edge, and some parcels have long gravel driveways or tight turnarounds. Deliveries of trusses, concrete, and drywall need equipment access planning. We scope truck access and material staging before quoting so there’s no surprise delivery surcharge after the contract is signed.
Pricing for Home Addition Contractor in Citrus, CA
Room additions in Citrus run $140 to $260 per square foot for standard build quality. A 400-square-foot ground-floor addition typically lands between $56,000 and $104,000. Second stories run $180,000 to $320,000. Garage additions run $65,000 to $140,000 depending on size and finish level. Fire Hazard Severity Zone requirements add roughly $6,000 to $18,000 in ember-resistant venting, Class A roofing, and ignition-resistant siding. Septic setback verification and any required grading or drainage work add $3,000 to $12,000. Every Seedling project receives a written price before any work starts, and that price covers all county fees we know will apply. Call (707) 383-5338 for a free estimate with actual numbers.
We Also Serve Cities Near Citrus
Our Home Addition Contractor team works throughout the San Gabriel Valley and nearby Southern California communities. Beyond Citrus, we serve Los Angeles, Long Beach, Anaheim, and Riverside. If you’re on the edge of Citrus or in a neighboring city, call us and we’ll confirm coverage for your specific address.
Serving Citrus, CA - Our Local Coverage Area
We’re based in the Citrus 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 Home Addition Contractor in Citrus
No, because Citrus is an unincorporated community with no city government, so there is no city permit. Every home addition permit in Citrus goes through LA County Building & Safety’s online portal. Discretionary items, like certain setback adjustments, route to the Department of Regional Planning in downtown LA. We handle both agencies and submit everything correctly the first time, which keeps your schedule intact.
Yes, if your parcel falls within LA County’s mapped Fire Hazard Severity Zone near the San Gabriel Mountain foothill edge, your addition will require ember-resistant vents, Class A roofing, and ignition-resistant siding. These upgrades typically add $6,000 to $18,000 to the project cost and additional county inspection steps. We check your parcel’s zone status before quoting, so the written price already includes any required fire-hardening work. Call (707) 383-5338 for an exact quote on your lot.
Yes, Citrus has many 1950s and 60s detached garages that convert well into JADUs or small living spaces. The county allows converting an existing garage into a Junior ADU with its own entry, kitchenette, and bathroom, often without the full new-structure setback requirements. We’ll verify the existing slab condition, electrical service capacity, and any septic or well setbacks before we quote. Estimates are free, and the written price comes before any work starts.
Septic and well setbacks create mandatory no-build zones around the leach field and well head, which can shrink the buildable area on your lot. We confirm those setback lines with a site survey before quoting, so the footprint we price is one the county will actually approve. An unverified footprint is the most common reason Citrus addition plans get rejected at plan check. Call (707) 383-5338 to have us check your parcel’s constraints.
Long driveways, tight turnarounds, and foothill-edge terrain in Citrus affect how concrete trucks, truss deliveries, and equipment reach the build site. We scope truck access and staging during the free estimate, and any added delivery or access cost appears in the written price. If your parcel needs a longer power or water trench run to a detached structure, we include that in the quote too, not as a later surprise. Call (707) 383-5338 to schedule an estimate.
Schedule Your Free Home Addition Estimate in Citrus
Planning a home addition in Citrus means navigating county permitting, fire zone requirements, and septic or well setbacks, and you’ll get a written price covering all of it before any work begins. Call (707) 383-5338 to schedule a free estimate with our Home Addition Contractor team. We’ll walk the lot, check the county rules that apply to your parcel, and give you real numbers you can plan around.
Written by Ben Ortega, Owner at Seedling ADU Builders, serving Citrus, CA.