Home Addition Drawings · Long Beach, CA
Permit-Ready Home Addition
Drawings for Long Beach, CA
Expand your home with a permitted room addition, second story, or family room extension. We deliver complete, code-compliant drawing sets for Long Beach's building department — in 10 business days, starting at $1,497.
14-day money-back guarantee · 10 business day turnaround
Local Intelligence
What Long Beach Homeowners Need to Know Before Submitting
Size & Zoning Rules
Any new square footage added to your Long Beach home counts against the same zoning envelope that governs ADU size, meaning large additions may affect your ability to add a future ADU. Long Beach's current ADU size cap is 1,200 sq ft — generous enough to accommodate most project types.
Long Beach does not impose an owner-occupancy requirement, so you can rent both the main home and any ADU or conversion as investment units.
If the addition creates a second unit or is later converted to a rental, Long Beach's ADU market supports approximately $2,660/month for a 2-bedroom unit.
Permit Process & Fees
Community Development Department permit fees for this project type typically range from $3,000 to $20,000 depending on project valuation and scope. Plan check runs approximately 6 weeks — though each correction cycle adds 3–6 weeks, which is why code-compliant drawings matter so much.
Addition permit packages submitted to Community Development Department 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 Community Development Department ↗Construction Cost Context
Long Beach's home addition construction costs run $280–$490 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 Long Beach
If your lot sits anywhere near Ocean Boulevard, Belmont Shore, Naples, or the Peninsula, expect the Community Development Department to route your project through a Coastal Development Permit review on top of the standard plan check — that's a separate approval process that can tack on 6-12 extra weeks and sometimes gets kicked to the California Coastal Commission if it's appealed or falls outside the city's local coastal program authority. Long Beach also has a lot of older housing stock on Alquist-Priolo fault-adjacent soil, so plan checkers frequently kick back projects for additional soils reports tied to SDC D requirements, even for a simple detached ADU. And because short-term rentals aren't allowed here, don't bank on Airbnb income to pencil out the project financially when you're presenting numbers to a lender — the city actively checks rental registration against STR listing sites.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, that 6-week plan check and $400/sqft figure are Long Beach-flavored state estimates at best, so I'd get actual local contractor bids and call the Community Development Department directly before penciling in a budget or schedule — especially since you're in the coastal overlay, where the added CDP review has pushed real timelines for my clients out several extra months beyond what the base permit number suggests. — Charlotte Pemberton, Senior ADU Design Consultant"
Market Context
Long Beach has a median home value of $699,000. Comparable renovation projects in this market typically add 28.0% to resale value.
Neighborhoods in Long Beach with the strongest home addition and resale value potential include Bixby Knolls (Cal Heights), Los Altos, Belmont Heights, Belmont Shore, Naples Island. Tree-lined streets and larger lots with many single-family homes make Bixby Knolls ideal for detached ADUs.
Permit Process
Permit applications are reviewed by the Community Development Department, with a plan check timeline of approximately 6 weeks. Permit fees in Long Beach range from $3,000 to $20,000 depending on project scope. Design review: Yes - in historic districts and in the Coastal Zone (administrative Local Coastal Development Permit); otherwise No (ministerial building-permit review).
Long Beach falls within Seismic Design Category Seismic Design Category D (SDC D) for typical Risk Categories I–III; higher SDC (E or F) may apply for certain critical/essential facilities or specific site classes per ASCE 7/CBC, which affects structural requirements for any new addition tying into the existing structure.
Properties within Long Beach's Coastal Overlay Zone require a Coastal Development Permit in addition to standard building permits.
Local Financing Resources
Local Home Addition Lenders in Long Beach
These lenders offer HELOC, construction, and renovation loans for home addition projects in Los Angeles County. Compare terms before committing.
Local Long Beach credit union offering HELOCs to tap home equity for renovations; loan size depends on available equity and membership.
Visit Lender ↗Regional Southern California credit union that highlights HELOCs and other lending options as ways homeowners can finance ADUs.
Visit Lender ↗Local municipal ADU financing program offering low-interest loans up to $250,000 for income-qualified homeowners to build ADUs.
Visit Lender ↗Specialty renovation/ADU financing platform that partners with credit unions and lenders nationwide to offer renovation HELOCs and fixed-rate renovation loans.
Visit Lender ↗National bank offering construction and construction-to-permanent loans that can be used for ADU builds; terms and amounts vary by borrower.
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 Long 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.
Drawing Package Details
What's Included in Your Long Beach Home Addition Package
Transparent Pricing
Long Beach Home Addition Drawing Packages
One-time fee. No retainer. No hourly billing.
- ✓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 Long 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 Community Development Department. We support plan check corrections at no extra charge.
Common Questions
Long Beach Home Addition FAQs
Do I need a permit for a home addition in Long Beach? +
Yes — any structural addition to your home in Long 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 Long Beach's submittal requirements.
How much does a home addition cost in Long Beach? +
Home additions in Long Beach typically cost between $250.0–$400.0 per square foot depending on the scope, finishes, and structural complexity. A 600 sq ft addition ranges from $150,000 to $240,000. Second-story additions cost more than ground-floor extensions due to structural requirements. Our drawing packages start at $1,497 — a fraction of local architectural fees.
What drawings are required to permit a home addition in Long Beach? +
Long 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 Long Beach? +
Plan check in Long Beach typically takes 6 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 Long Beach? +
Long 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 Long 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 Long Beach? +
Our permit-ready home addition drawing packages for Long Beach start at $1,497. Local architects and designers typically charge $3,000–$10,000+ for comparable drawing sets. Every package is engineered for CA code compliance and formatted for Long Beach's building department. Turnaround is 10 business days with a 14-day money-back guarantee.
Will a home addition increase my home's value in Long Beach? +
In Long Beach, where median home values are approximately $699,000, 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 Long Beach? +
Second-story additions are permitted in most Long 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 Long Beach
Adding an ADU instead? See our ADU design service.
Next Steps
Ready to Move Forward With Your Long 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 Community Development Department.
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
$997 – $2,997
- ✓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 Community Development Department. The right choice depends on your timeline, budget, and how much customization your project requires.