Home Addition Contractor in Studio City, CA

Studio City homes are worth expanding, not leaving. Between the Colfax Meadows bungalows, the Silver Triangle traditionals, and the hillside properties above Ventura Boulevard, most of the 91604 housing stock was built between the 1940s and 1960s on lots that can comfortably carry more square footage. A well-built home addition lets you add the primary suite, family room, home office, or extra bedroom your family needs without the cost and heartbreak of selling and moving out of the neighborhood. HomeSense Construction & Remodeling is a licensed general contractor (CA Lic #1125001) that has designed and built additions across the San Fernando Valley since 2011, and we bring the same permit-handled, fixed-scope process to Studio City.

Types of Home Additions We Build in Studio City

Every Studio City lot is different, so we start with what your home and family actually need:

Room & bedroom additions — a new bedroom, guest room, or nursery bumped off the existing footprint.
Primary (master) suite additions — a bedroom, walk-in closet, and spa bathroom, the single most requested Studio City addition.
Family room & great-room expansions — opening up the back of the house toward the yard, often paired with a kitchen reconfiguration.
Second-story additions — when the lot is tight or you want to protect yard space, we build up instead of out.
Home office & in-law suites — dedicated, sound-separated space for remote work or multigenerational living.
Detached ADUs — when the goal is rental income or a fully separate unit, an ADU may beat an attached addition (see below).

What a Home Addition Costs in Studio City (2026)

Studio City runs at the higher end of the Valley — roughly 110% of the LA County average — because of premium, hillside-adjacent lots and tighter site access. Honest 2026 numbers for the 91604 area:

Ground-floor additions: about $275–$605 per square foot, all-in with design, permits, and finishes.
Bedroom addition (200–300 sq ft): roughly $80,000–$140,000.
Primary-suite addition (350–500 sq ft): roughly $150,000–$220,000.
Larger family-room or multi-room additions: commonly $250,000–$550,000+.
Second-story additions: about $400–$700 per square foot — the premium reflects structural reinforcement, a new staircase, and engineering.

Your final number depends on finish level, structural and foundation work, and how much of the existing house is affected. We give you a written, line-item scope so there are no moving targets. Compare options first on our remodeling cost guides.

Permits, Title 24 & the LADBS Process

Studio City is in the City of Los Angeles, so additions are permitted through LADBS. Any project that adds square footage or alters the structure needs a permit, plan check, and inspections — and all new conditioned space must meet the 2026 Title 24 energy code (insulation, windows, HVAC, and increasingly cool-roof and electrical-readiness requirements). As your general contractor, HomeSense prepares the drawings, pulls the permits, manages plan check and every inspection, and builds to current code. You do not chase the city; we do.

Addition vs. ADU: Which Adds the Right Space?

If your goal is more living space that flows with the main house, an attached addition is usually the answer. If the goal is rental income, a separate entrance, or a fully independent unit, a detached ADU often wins — and California’s 2026 rules make ADUs easier than ever (SB 1211 allows up to eight detached ADUs on multifamily lots, and AB 2533 gives amnesty to many older unpermitted units). SB 9 can even allow a lot split or a second primary unit on qualifying single-family parcels. On lots of 5,000–10,000 sq ft — typical for Studio City — you frequently have room for either. We will walk you through the trade-offs before you commit a dollar.

Our Home Addition Process, Step by Step

Consultation & feasibility — we visit the property, confirm setbacks and lot conditions, and pressure-test the budget.
Design & engineering — architectural drawings and structural engineering tailored to your home.
Permits & plan check — we submit to LADBS and manage the back-and-forth.
Construction — foundation, framing, MEP rough-in, insulation, drywall, and finishes, with one accountable crew.
Final inspection & walkthrough — we close out permits and hand you a finished, code-compliant space.

Plan on about 4–6 months of construction for a straightforward room addition and 9–14 months total for larger or second-story projects once design and permitting are included.

Why Studio City Homeowners Choose HomeSense

We are a licensed, insured general contractor with a 5.0-star track record and 15 years building additions and remodels across the Valley. You get one accountable team from drawings to final inspection, transparent line-item pricing, and a crew that respects your street, your neighbors, and your timeline. We serve Studio City and the surrounding east-Valley communities including Sherman Oaks, Van Nuys, North Hollywood, and Encino.

Serving Studio City & Nearby Neighborhoods

HomeSense builds additions throughout Studio City (91604) and the adjacent Valley. Explore related work: Home Additions in Los Angeles & the SFV, Home Addition Contractor in Encino, Home Addition Contractor in Reseda, Home Addition Contractor in Northridge, Bathroom Remodeling in Sherman Oaks, and Bathroom Remodeling in Van Nuys. See all the areas we cover on our service areas page.

Get a Studio City Home Addition Quote

Ready to add the space your home is missing? Call (818) 300-3422, message us on WhatsApp at (818) 266-1292, or request a free consultation. Have questions first? Our FAQ covers permits, timelines, and financing. HomeSense Construction & Remodeling — 6571 Ponce Ave, West Hills, CA 91307. CA Lic #1125001.

Studio City Home Addition FAQ

How much does a home addition cost in Studio City?
In 2026, most Studio City additions run about $275–$605 per square foot. A bedroom addition typically lands around $80,000–$140,000, a primary-suite addition around $150,000–$220,000, and larger family-room or second-story projects $250,000 and up. Studio City sits at the higher end of the Valley because of premium lots and site access.

Do I need a permit for a home addition in Studio City?
Yes. Studio City is in the City of Los Angeles, so any addition that adds square footage or changes the structure requires an LADBS permit, plan check, and inspections, plus 2026 Title 24 compliance. HomeSense handles the entire permit process for you.

How long does a Studio City home addition take?
Plan on roughly 4–6 months of construction for a straightforward room addition, and about 9–14 months total for larger or second-story additions once design and permitting are included.

Should I build an addition or an ADU?
An attached addition is best for space that flows with the main house; a detached ADU is better for rental income or a separate unit. On typical 5,000–10,000 sq ft Studio City lots you often have room for either, and California’s 2026 ADU laws make the ADU route easier — we compare both before you decide.

Is HomeSense licensed to build additions in Studio City?
Yes. HomeSense Construction & Remodeling is a licensed California general contractor (CA Lic #1125001), insured, and has served the San Fernando Valley since 2011 with a 5.0-star rating.