Home Addition Drawings · Redondo Beach, CA
Permit-Ready Home Addition
Drawings for Redondo Beach, CA
Expand your home with a permitted room addition, second story, or family room extension. We deliver complete, code-compliant drawing sets for Redondo Beach's building department — 14-day money-back guarantee.
14-day money-back guarantee · permit-ready delivery
Local Intelligence
What Redondo Beach Homeowners Need to Know Before Submitting
Size & Zoning Rules
Any new square footage added to your Redondo Beach home counts against the same zoning envelope that governs ADU size, meaning large additions may affect your ability to add a future ADU. Redondo Beach's current ADU size cap is 800 sq ft — within the typical range for most floor plan configurations.
Redondo Beach currently requires owner-occupancy on the primary parcel — meaning one of the units (the main home or the ADU/conversion) must be your primary residence.
If the addition creates a second unit or is later converted to a rental, Redondo Beach's ADU market supports approximately $3,093/month for a 2-bedroom unit.
Permit Process & Fees
Addition permit packages submitted to Building and Safety Division must include a site plan, floor plans, all four elevations, an electrical plan, and energy compliance documentation — plus stamped structural drawings are always required for any load-bearing elements, second-story work, or new foundation.
Visit Building and Safety Division ↗Construction Cost Context
Redondo Beach's home addition construction costs run $220–$580 per square foot — a wide range driven by labor markets, local code complexity, and finish level. Our drawings are priced at a fraction of what a full-service architect would charge to produce the same permit set.
⚠ Common Pitfall in Redondo Beach
If your property falls within the Coastal Zone, you’ll need a Coastal Development Permit (CDP) before starting the standard ADU permit process, which can add 2–6 months to your timeline depending on environmental reviews and neighbor appeals. Additionally, many older homes in Redondo Beach require costly upgrades to outdated water and sewer lines to meet ADU utility capacity requirements, with fees and construction often exceeding $10,000.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, that 8.5-week timeline and per-square-foot cost figure are state-level estimates, not Redondo-specific numbers, so I'd get a written quote from a local contractor and call the Building and Safety Division before penciling in a schedule—especially since your coastal overlay means the CDP process alone can tack on several months beyond what's shown here. I've seen homeowners assume the listed timeline includes coastal review; it doesn't, and that's usually the biggest reality gap I have to walk people through."
Market Context
Redondo Beach has a median home value of $1,300,000. Comparable renovation projects in this market typically add 30% to resale value.
Neighborhoods in Redondo Beach with the strongest home addition and resale value potential include TRW Tract, El Nido, Hollywood Riviera, Towers, South Redondo Beach. Single-family homes on 5,000-8,000 SF lots with significant new detached-construction activity make this the strongest detached-ADU market in Redondo Beach.
Permit Process
Permit applications are reviewed by the Building and Safety Division, with a plan check timeline of approximately 8.5 weeks. Design review: Yes - in historic districts only.
Redondo Beach falls within Seismic Design Category D, which affects structural requirements for any new addition tying into the existing structure.
Properties within Redondo Beach's Coastal Overlay Zone require a Coastal Development Permit in addition to standard building permits.
Local Financing Resources
Local Home Addition Lenders in Redondo Beach
These lenders offer HELOC, construction, and renovation loans for home addition projects in Los Angeles County. Compare terms before committing.
Physically located at 312 N Pacific Coast Hwy, Redondo Beach, CA; HELOC up to $500K or 80% LTV with WSJ Prime + margin (floor 4.000%, max 12.00%), 10-year interest-only draw / 15-year repayment; usable for home improvements including ADUs.
Visit Lender ↗Dedicated ADU HELOC available in California; $10K–$400K line, variable APR starting at 8.25%, 2-year interest-only draw followed by 20-year repayment; allows up to 125% current / 90% post-renovation LTV and counts projected ADU rental income for qualification.
Visit Lender ↗California single-close construction loan for new home/ADU builds (fee tiers under/over conforming loan limits), with HELOC also offered; membership open to those in the California firefighter/public-safety community.
Visit Lender ↗One-Time Close new-home construction loan (plus residential lot loans up to 65% of lot cost) with no maximum construction amount; serves Southern California including the Redondo Beach/LA market; relationship pricing available with $250K+ in deposits/wealth.
Visit Lender ↗Specialty ADU lending platform operating in California (Renovation Finance LLC, NMLS #2412747); partners with credit unions to underwrite renovation loans based on the home's after-completion value, ideal for ADU construction.
Visit Lender ↗Build With A Plan is not affiliated with these lenders. Always compare rates and consult a mortgage professional.
Local Build Partners
Vetted Home Addition Contractors in Redondo Beach
We draw the plans. These contractors build the addition. Independent — no referral fees paid or received.
Build With A Plan provides drawings only. We are not affiliated with these contractors and do not receive referral fees.
Free — No Obligation
What Will Redondo Beach Let You Add?
Setbacks, lot coverage, and height limits decide your addition before a single line is drawn. Send us the address and we’ll tell you what’s actually approvable — free, before you commit to a design.
- ✓Maximum footprint your lot and setbacks allow
- ✓Lot-coverage and height limits in Redondo Beach
- ✓Whether your addition triggers structural or energy upgrades
- ✓Realistic plan-check timeline for your project
- ✓A straight answer within 48 hours
Review My Project — Free
Takes 60 seconds. We'll deliver your personalized report within 48 hours.
Request Received
Your feasibility report is being prepared. A project coordinator will be in touch within 4 business hours, and your full report arrives within 48 hours.
Drawing Package Details
What's Included in Your Redondo Beach Home Addition Package
What You Get
What's in Your Redondo Beach Home Addition Package
One-time fee, no retainer, no hourly billing — your exact scope and price confirmed on a free call.
- ✓Site plan
- ✓Floor plans (existing + proposed)
- ✓All 4 elevations
- ✓Electrical plan
- ✓Title 24 energy compliance
- ✓PDF + DWG delivery
- ✓10 business day turnaround
- ✓Everything in Starter
- ✓Stamped structural drawings
- ✓Foundation plan
- ✓Roof framing plan
- ✓Window & door schedules
- ✓1 round of revisions
- ✓Everything in Standard
- ✓3D rendering
- ✓Cross-section details
- ✓Material specifications
- ✓HOA submission package
- ✓2 rounds of revisions
- ✓Priority 5-day turnaround
After You Order
Your Addition Drawings in 3 Steps
Submit Your Project Details
Share your property address, existing floor plan (if available), and the addition scope. We assign your project coordinator within 4 business hours.
We Draft Your Drawings
Our team designs your complete addition drawing set — engineered for Redondo Beach's building department requirements and CA CBC code. Delivered in 10 business days.
Submit to Your Building Dept
Download your complete package and submit to Building and Safety Division. We support plan check corrections at no extra charge.
Common Questions
Redondo Beach Home Addition FAQs
Do I need a permit for a home addition in Redondo Beach? +
Yes — any structural addition to your home in Redondo Beach requires a building permit. This applies to room additions, second-story additions, sunrooms, and attached garages. You'll need permit-ready drawings before the building department will accept your application. Our packages are formatted specifically for Redondo Beach's submittal requirements.
How much does a home addition cost in Redondo Beach? +
Home additions in Redondo Beach typically cost between $150–$500 per square foot depending on the scope, finishes, and structural complexity. A 600 sq ft addition ranges from $90,000 to $300,000. Second-story additions cost more than ground-floor extensions due to structural requirements. Contact us to discuss drawing package options for your project.
What drawings are required to permit a home addition in Redondo Beach? +
Redondo Beach's building department requires: a site plan showing the addition's footprint and setbacks, floor plans for all affected levels, all four exterior elevations, an electrical plan, and energy compliance (Title 24 in California). Structural plans stamped by a licensed engineer are required for any load-bearing elements — included in our Premium package.
How long does the permit process take for a home addition in Redondo Beach? +
Plan check in Redondo Beach typically takes 8.5 weeks for home additions. Additions with structural components may require additional review. Complete, code-compliant drawings significantly reduce correction cycles — each cycle adds 3–6 weeks. Our drawings are engineered to pass on the first submittal.
What setbacks apply to home additions in Redondo Beach? +
Redondo Beach enforces minimum setbacks from property lines for all additions: typically 4–5 ft side setbacks and 5 ft rear setbacks, though these vary by zoning district and lot size. Your addition must stay within the buildable envelope. Our site plan documents existing and proposed setbacks and flags any zoning variances required.
Do I need structural drawings for a home addition in Redondo Beach? +
Yes, for most additions. Any load-bearing walls, new foundations, second-story construction, or roof structure changes require stamped structural drawings from a licensed engineer. California's CBC (California Building Code) and seismic requirements make structural plans mandatory for most addition types. Our Standard and Premium packages include stamped structural drawings.
How much do home addition drawings cost in Redondo Beach? +
Our permit-ready home addition drawing packages for Redondo Beach include everything your building department requires — floor plans, elevations, structural, and energy compliance. Every package is engineered for CA code compliance and formatted for Redondo Beach's building department. 14-day money-back guarantee.
Will a home addition increase my home's value in Redondo Beach? +
In Redondo Beach, where median home values are approximately $1,300,000, a permitted home addition adds square footage that appraisers value as part of the home's gross living area. Return on investment varies by addition type — master suite additions, family room expansions, and additional bedrooms typically recoup 50–75% of project cost in appraised value in CA markets.
Can I add a second story to my home in Redondo Beach? +
Second-story additions are permitted in most Redondo Beach residential zones, subject to height limits and design review requirements. California generally requires ministerial permit approval, but some cities impose design compatibility or neighborhood compatibility review for second stories. Our drawings cover all levels including foundation upgrades, shear walls, and roof framing required for vertical additions.
Nearby Cities
Also Available in Redondo Beach
Adding an ADU instead? See our ADU design service.
Next Steps
Ready to Move Forward With Your Redondo Beach ADU?
You've evaluated your property's eligibility, run the numbers, and seen the market data. The next step is getting permit-ready architectural drawings to submit to Building and Safety Division.
Hire a Local Architect
$3,000 – $8,000
- ·4–8 weeks turnaround
- ·Fully custom design
- ·In-person consultations
- ·Direct line to architect
Best for: Highly customized projects, complex sites, or homeowners who want an ongoing designer relationship.
Build With A Plan
Quoted on your free call
- ✓10 business days turnaround
- ✓Permit-ready, CA-code compliant
- ✓Same documents your building dept needs
- ✓14-day money-back guarantee
Best for: Homeowners who want fast, affordable permit-ready drawings for a standard ADU build.
Both options produce permit-ready architectural drawings accepted by Building and Safety Division. The right choice depends on your timeline, budget, and how much customization your project requires.