A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Camarillo
Adding a room to your Camarillo home typically costs $180 to $340 per square foot for a standard room addition, with most projects landing between $65,000 and $165,000 depending on foundation work, roofline changes, and finish level. That’s the honest range we quote before anyone swings a hammer. Our Home Addition Contractor team plans, permits, and builds the job from first sketch to final inspection, and we put every commitment in writing before work starts. Call (831) 230-7250 to get a real number for your project, not a vague ballpark.
Camarillo isn’t Thousand Oaks, and it isn’t Oxnard. The city’s ranch homes on oversized lots, the expansive clay under much of the east side, and the specific setback review rules the city applies all change how an addition gets scoped and priced. We know those conditions because we work in them every week.
Why Lodgewick ADU Ventura Is Camarillo’s Preferred Home Addition Contractor Company
Homeowners in Camarillo tend to have been through something before. A price that crept up after demolition. A crew that vanished mid-project. A permit that stalled for months because someone missed a Ventura County Fire Protection District trigger. That’s exactly what The Kingswell Way was built against. We hand you a written price before work begins, show up in the window we gave you, keep the job site clean, and put the guarantee in writing on every project. If the work isn’t right, we come back and make it right. That’s the 365-Day Done Right Promise, and it’s in writing on every job we do in Camarillo.
Russ Delmar leads our Camarillo projects personally. When a homeowner calls about a room addition off Las Posas Road or a second-story addition in Mission Oaks, Russ is the one walking the lot, checking side-yard clearances, and explaining which permit path applies. Our crews are background-checked and uniformed, so when a Lodgewick truck parks in front of your Camarillo home, you know exactly who’s walking onto your property. Dispatch and scheduling run from our Los Angeles office, but the crews serving Camarillo work locally and know the city’s inspectors, its code quirks, and its dirt.
Room Addition Contractor in Camarillo
A Room Addition Contractor in Camarillo handles ground-floor expansions: extending a living room, adding a bedroom wing, enlarging a kitchen, or building a family room onto the back of a house. On Camarillo’s post-1960s ranch homes, this is often the most cost-effective path to more space, especially on the oversized lots on the city’s east side where side-yard and rear-yard setbacks leave real room to expand outward. A typical ground-floor room addition in Camarillo runs $65,000 to $145,000, with the foundation being the single biggest variable.
Foundation Work on Camarillo Clay
Large portions of Camarillo sit on expansive clay. That dirt moves with moisture and can crack a standard footing. Our bids include soil-specific foundation design from day one, because under-bidding the concrete work and discovering clay problems mid-project is the most common way a Camarillo room addition budget blows up.
Permit Set and Setbacks
Camarillo’s residential code still checks side-yard encroachment when an addition extends beyond the original foundation line. We pull the full permit set, building, electrical, mechanical, and any plumbing, and we pre-walk clearance distances before the plans go to the city. That’s how final inspections clear on the first visit.
Second Story Addition Contractor in Camarillo
A Second Story Addition Contractor in Camarillo builds up instead of out, adding a full or partial upper level to a single-story home. On Camarillo lots where side-yard setbacks are tight but the lot is plenty deep for a tall structure, a second-story addition can double living space without eating the yard. Expect to pay $220 to $380 per square foot, with most second-story projects in Camarillo landing between $150,000 and $280,000. The structural work below, the stairwell, and the roofline tie-in drive the cost.
Structural Assessment First
Not every 1960s ranch is framed to carry a second floor. Before we quote a second-story addition in Camarillo, we check the existing footing depth, wall framing, and header sizes. If the structure needs reinforcing, that’s in the written price, not a surprise later.
Roofline and Drainage
Adding a level changes the roofline, and Camarillo’s winter rain can find any seam left open. We tie the new roof into the existing one with proper flashing at every transition and re-route drainage so the new upper walls don’t channel water into the original eaves. The work goes through Camarillo’s building and fire reviews, and we handle the full permit set.
Trusted Brands We Service in Camarillo
We work with the ADU and addition brands Camarillo homeowners actually ask about. Abodu and Cover prefab units show up as permitted factory-built modules that we site, connect, and finish. Dvele’s panelized construction works well on Camarillo lots where we’re adding to the back of a ranch home and want faster framing with better insulation performance. We stock matching James Hardie lap and panel siding locally for Camarillo jobs, so we don’t order from out of state and wait. If you’ve got a brand in mind, we’ll tell you straight whether it fits your lot and budget.
Common Home Addition Contractor Problems We See in Camarillo Homes
- Assumed zero setback review. Camarillo’s 2019 ADU ordinance relaxed some rules, but room additions that extend past the original foundation line still face side-yard encroachment checks. We see bids that ignored this and died in plan check.
- Foundation bids that looked at the surface. The neighborhood looks flat, but the clay under it isn’t forgiving. A plan set that assumes standard footings on the east side of Camarillo can turn into a $20,000 change order when the trench opens.
- Missed fire egress triggers. Ventura County Fire Protection District rules can require a second means of egress or a sprinkler trigger when a room addition converts a garage or extends a bedroom wing beyond a square footage threshold. Missing that at bid time means a redesign and a stalled permit.
- HVAC shortcuts. Tacking a new room onto an existing system without checking duct capacity leaves the new space hot in August and cold in January. Camarillo’s inland sun makes that mistake obvious fast.
Pricing for Home Addition Contractor in Camarillo, CA
Here are honest Camarillo ranges for the work we do most often:
- Room addition (ground floor, 400 – 600 sq ft): $65,000 – $145,000
- Second-story addition (full or partial, 500 – 800 sq ft): $150,000 – $280,000
- Bathroom addition: $35,000 – $75,000
- Sunroom addition: $40,000 – $95,000
- Bump-out addition (small, single-wall extension): $22,000 – $50,000
- Garage addition or conversion: $45,000 – $110,000
What moves the number: the foundation condition, whether the existing HVAC and electrical can carry the new load, the finish level you choose, and whether the roofline changes. We itemize all of it in a written line-item quote before you sign anything. Call (831) 230-7250 for a free estimate on your specific project. No door price changes, ever.
We Also Serve Cities Near Camarillo
Our crews work across Ventura County, including Somis just north of the 118, Oxnard to the west, Newbury Park over the grade to the east, and Santa Paula up the 126. If you’re in Camarillo or any of those nearby communities, we’re Camarillo‘s local home addition team and we’ll walk your lot and give you a real number in writing.
Serving Camarillo, CA - Our Local Coverage Area
We’re based in the Camarillo 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 Camarillo
A typical ground-floor room addition in Camarillo takes 4 to 7 months from permit submittal to final inspection, with the city’s plan check running 4 to 8 weeks and construction running 10 to 16 weeks depending on foundation work and finish level. Second-story additions add another 2 to 4 months. Call (831) 230-7250 and we’ll give you a realistic calendar for your specific project before you commit to anything.
Expansive clay soil is the most common hidden cost driver in Camarillo room additions. Large portions of the city sit on clay that swells with moisture and requires deeper footings or post-tension slabs than a standard Ventura County plan set would show. We test and inspect before we quote, so that cost is in the written price, not a change order after the trench opens. Call (831) 230-7250 for a free foundation assessment.
A second-story addition in Camarillo requires its own structural, foundation, and fire review, and the work is covered under your main addition permit set, not a separate standalone permit. But the building department and Ventura County Fire Protection District will both review the plans, and the fire district may require a second means of egress or a sprinkler trigger depending on square footage and how the upper floor connects to the lower. We handle the full permit set, including all structural and fire review. Call (831) 230-7250 and we’ll walk you through exactly what applies to your house.
Yes, a room addition in Camarillo typically triggers a supplemental property tax assessment on the added square footage, though the original home’s base year value under Proposition 13 generally stays intact. The Ventura County Assessor revalues the new construction at current market rates, and your bill goes up accordingly. A local property tax professional can give you exact numbers for your parcel. Call (831) 230-7250 for project costs, and we’ll point you to the right assessor’s office for the tax side.
Camarillo requires foundation, framing, electrical, mechanical, insulation, and a final building inspection before a room addition can be occupied, plus fire district sign-off if the addition triggers egress or sprinkler requirements. We pre-walk every clearance and code check before the inspector arrives, so the final clears on the first visit most of the time. Call (831) 230-7250 and we’ll handle the whole inspection schedule for you.
Get Your Camarillo Addition Scoped and Priced Right
We recently wrapped a 480-square-foot room addition to a 1973 ranch on Calle La Roda in Las Posas Estates. We matched the original board-and-batten rhythm with James Hardie lap siding and routed a new HVAC supply from the existing attic trunk. Our crew managed the whole permit set, building, electrical, and mechanical, and the final inspection cleared on the first visit because we had pre-walked clearance distances for the new exterior door to the side property line per Camarillo’s current residential code. That’s the standard we bring to every Camarillo job.
Call (831) 230-7250 to schedule your free estimate. We’ll walk your lot, give you a written line-item quote, and tell you exactly what the city will require before you spend a dollar.
Written by Russ Delmar, Owner at Lodgewick ADU Ventura, serving Camarillo and Ventura County since 2010.
