
More Space Without Moving
In Century City: 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.
Century City Properties
Median home
$1.8M
Typical lot
Condo-sized outdoor spaces
Typical budget
$20K-$60K (smaller spaces)
Common style
High-rise condos
We work on properties throughout Century City, from homes near Westfield Century City, Century Plaza Towers, Fox Studios, to projects in Century City, Avenue of the Stars area, and beyond.
Century City attracts attorneys, entertainment executives, and business leaders seeking luxury urban living. Premier business and residential district. Most properties are primarily 1970s-2020s luxury developments.
Century City's housing stock leans toward High-rise condos and Some townhomes. Room additions that reads the architecture first tends to age better than projects that ignore it.
Room Additions work in Century City is permitted through LADBS, with typical timelines around 2-4 weeks for city permits, plus condo board approval timeline. LA City permits required for structural modifications. Permit applications are submitted before tear-off; inspections happen during the project per the authority's standard cadence.
HOAs are common in parts of Century City, and room additions work often goes through architectural review before construction starts. Typical reviews touch on all exterior modifications require condo board approval. Approvals are typically collected as a discrete project phase, which means the visible start date is later than the contract date.
Local conditions in Century City that affect this kind of work: high-end residents and small spaces. 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 Century City 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 on balconies and terraces, with urban heat island effect requiring shade solutions This makes Century City ideal for room additions projects.
Room Additions projects in Century City typically require permits from Los Angeles Department of Building and Safety. Approval timeline: 2-4 weeks for city permits, plus condo board approval timeline. We handle all permits for you.
HOA Note: All Century City residential properties are governed by condo associations with strict aesthetic and modification requirements.
Century City features High-rise condos, Some townhomes homes, primarily from the Primarily 1970s-2020s luxury developments era. Space-maximizing, luxury small-space design
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 Century City homeowners combine room additions with these complementary services.
Also providing room additions services in:
Local experts for every corner of Century City
Serving zip codes: 90067
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 Century City? Contact us for a free on-site consultation. We'll assess your property and provide a detailed estimate within 24 business hours.