
More Space Without Moving
In Del Rey: room additions projects typically run $50,000-$700,000 and take 4-12 months. Final numbers depend on scope, materials, and site conditions. Get a free on-site estimate for your address.*
*Ranges reflect recent Buildda projects in Los Angeles. Actual pricing and duration depend on the specifics of your home.
Buildda Tip
Before committing to a room addition, check your lot coverage and setback requirements with your local planning department. Many LA-area properties are already close to the maximum allowed lot coverage, which limits how much you can build outward. If your lot is maxed out on the ground, a second-story addition might be your best option - but the existing structure needs a structural evaluation first. We always verify these constraints before starting design work so you do not pay for plans that cannot get permitted.
Del Rey Properties
Median home
$1.35M
Typical lot
6,000-9,000 sq ft
Typical budget
$30K-$70K
Common style
Older ranches
We work on properties throughout Del Rey, from homes near Ballona Creek, Del Rey Lagoon Park, Playa Del Rey Beach (nearby), to projects in Del Rey, Playa Del Rey adjacent areas, and beyond.
Del Rey attracts beach-oriented families and professionals. Close to beach with ocean breezes. Most properties are primarily 1950s with significant new construction.
Del Rey's housing stock leans toward Older ranches and New construction homes. Room additions that reads the architecture first tends to age better than projects that ignore it.
Room Additions work in Del Rey is permitted through LADBS, with typical timelines around 2-4 weeks for most outdoor projects. Online permit applications available through LADBS portal. Permit applications are submitted before tear-off; inspections happen during the project per the authority's standard cadence.
Most Del Rey single-family homes are not in HOAs, so room additions decisions usually move directly from quote to scheduling without architectural review.
Local conditions in Del Rey that affect this kind of work: aging hardscape and flat lots. These typically need to be addressed in the project scope rather than discovered mid-job.
Buildda is a California-licensed general contractor based in Culver City (CSLB #1131088, B/General). Buildda doesn't currently have completed room additions projects documented in Del Rey yet. For project examples across other services, see [Buildda's portfolio](/portfolio).
Licensed General Contractor · CA #1131088 · Founder, Buildda Inc.
Last updated: April 2026. *Warranty terms and coverage vary by project scope and materials. Specific warranty details are provided in your project contract. Photos on this page may include stock or representative imagery. Actual project results vary.
Our Process
We visit your property to assess setback requirements, zoning, lot coverage, and structural feasibility. You learn what is possible on your specific lot before spending money on plans.
Architectural plans are drawn to match your existing home style. A structural engineer designs the foundation and framing. We coordinate both so the addition integrates properly.
We submit plans to your local building department for review. LA-area plan check can take several weeks depending on the jurisdiction and complexity. We handle all corrections and resubmittals.
The foundation is poured and inspected, then framing goes up. This is when the addition takes physical shape. Roof tie-in to the existing structure happens at this stage.
HVAC ductwork, electrical circuits, and plumbing lines are roughed in. Insulation is installed after rough-in inspections pass. This stage involves multiple city inspections.
Drywall, flooring, paint, trim, fixtures, and exterior finishes complete the space. We schedule the final inspection, obtain your certificate of occupancy, and walk you through the finished addition.
Local Expertise
Year-round outdoor living with ocean breezes and abundant sunshine This makes Del Rey ideal for room additions projects.
Room Additions projects in Del Rey typically require permits from Los Angeles Department of Building and Safety. Approval timeline: 2-4 weeks for most outdoor projects. We handle all permits for you.
Del Rey features Older ranches, New construction homes, primarily from the Primarily 1950s with significant new construction era. Beach-inspired, outdoor entertainment focus
Our room additions designs complement these architectural styles while adding modern functionality and value to your property.
Helpful resources to plan your project

Complete attic conversion guide for California homes. Costs ($30K-150K+), code requirements (ceiling height, egress, Title 24), HVAC options, insulation, and ROI analysis.

10 curb appeal upgrades with real costs for Southern California homes plus two Buildda case studies (Sunkist Park trim repaint, Carlson Park brick walkway). $100 quick wins to $15K+ full makeovers. ROI, budget tiers, and permit info.
FAQ
Learn key terms to understand your project better
Related Services
Many Del Rey homeowners combine room additions with these complementary services.
Also providing room additions services in:
Local experts for every corner of Del Rey
Serving zip codes: 90293
Pricing
Typical project range: $50,000 - $700,000
$50,000-$100,000
Best for: Expanding a bedroom, kitchen, or living room by a few feet without a major structural project
$120,000-$250,000
Best for: Adding a bedroom, family room, or home office with its own footprint
$350,000-$700,000
Best for: Homeowners who need to double their living space without expanding the footprint
Prices vary based on project scope, materials, and site conditions.Call (310) 266-5744 for a free estimate.
Recent Buildda Activity
Get Started
Ready to start your room additions project in Del Rey? Contact us for a free on-site consultation. We'll assess your property and provide a detailed estimate within 24 business hours.