ADUs in Long Beach
One of the friendliest ADU permit pipelines in the county. Fast turnarounds and strong rental demand.
- Permit authority
- Long Beach Development Servicesa
Figures are typical ranges for the Long Beach market — not a quote. See methodology & sources below for how each number is derived.
What an ADU costs in Long Beach.
Turnkey pricing — design, permits, and construction included.
≈ 400 sq ft
Garage conversion
from $133K
Fastest path to keys
480 sq ft
Detached studio
from $163K
750 sq ft
Detached 1-BR
from $258K
1,000 sq ft
Detached 2-BR
from $353K
Highest long-term ROI
- Garage conversion$133K
- Detached studio$163K
- Detached 1-BR$258K
- Detached 2-BR$353K
The path through Long Beach Development.
Long Beach Utilities turnarounds among the fastest in the region.
- Plan check window
- 60–110 days
- Permit + impact fees
- $18K–$30K
- Authority
- Long Beach Development Services
- Standard plans
- Available · faster path
From contract to certificate of occupancy.
- 011–3 wks
Feasibility & survey
APN pull, zoning, overlays, utility records.
- 024–8 wks
Design & Title 24
Schematic, structural, energy compliance.
- 038–14 wks
Permitting
Plan check at the local jurisdiction.
- 048–12 wks
Foundation & framing
Mobilize, pour, frame, dry-in.
- 0510–14 wks
MEP & finishes
Rough-in, drywall, kitchen, bath, paint.
- 062–3 wks
Inspections & closeout
Final inspections, certificate of occupancy.
- Feasibility & survey1–3 wks
- Design & Title 244–8 wks
- Permitting8–14 wks
- Foundation & framing8–12 wks
- MEP & finishes10–14 wks
- Inspections & closeout2–3 wks
§ IV · Local notes
- 01Pre-approved ADU plans available city-wide.
- 02Coastal overlay applies south of 7th Street near the shore.
- 03Strong long-term rental demand from CSULB and downtown.
What's true only in Long Beach.
Microclimate, ground, history, and economics — the inputs to a design that fits here.
CEC Zone 8 (coastal-transitional)
Moderate marine influence — warmer than Santa Monica, cooler than Lakewood.
Summer high
82°F avg
Winter low
49°F avg
Marine layer
Frequent morning, clears mid-day.
Wildfire zone (WUI)
None
Coastal Commission
Required
Best break-ground
Early October — past hurricane-season swell that floods low streets.
How we set foundations here.
What looks at home in Long Beach.
Designs that read as native get approved faster and rent for more.
- California Bungalow
- Spanish Revival
- Mid-Century Beach
- Naval Modern
- Stucco with painted accents
- Cedar shingle
- Smooth concrete
- Galvanized steel
Money on the table, specifically here.
- LBWater turf rebate$3/sq ft
- SCE heat-pump water heater$1,250
- SoCalGas induction range$300
The stuff you only learn by showing up.
Anchors we use when scheduling deliveries, inspections, and tenant tours.
- Roycroft (Belmont Heights)
- Pine Ave (Downtown)
- Los Coyotes Diagonal
Zoning, compliance, fees & market — Long Beach.
Editorial typicals — verify against your specific lot and the cited ordinance.
Zoning specifics
- Max ADU size
- 1,200 detached · 850/1,000 attached (LBMC 21.45)
- Height limit
- 16 ft · 18 ft within ½-mi transit · 25 ft for 2-story on qualifying lots
- Setbacks (rear / side)
- 4 ft rear · 4 ft side
- Owner occupancy
- Not required
- JADU rules
- Max 500 sq ft, owner-occupied
- Short-term rental
- Allowed with STR registration; primary residence cap of 90 un-hosted nights/yr
Compliance triggers
- Fire sprinkler trigger
- Required only if primary has them
- Solar PV required
- Yes — new detached
- EV charger required
- EV-ready required
- Defensible space (WUI)
- N/A (not in FHSZ)
- Stormwater / LID
- Required >500 sq ft impervious (LB MS4)
Fees & inspections
- Impact-fee waiver
- <750 sq ft fee-exempt
- School-facility fee
- $4.79/sq ft (LBUSD)
- Typical inspections
- 8–10
- Construction hours
- Mon–Fri 7:00am–7:00pm · Sat 9:00am–6:00pm · Sun prohibited (LBMC 8.80)
Market data
- Median home value
- ≈ $830K citywide · $1.3M+ Belmont Shore
- 5-yr appreciation
- +34%
- Typical cap rate
- 5.0–6.5%
- Rental days-on-market
- 9–15 days
"640 sq ft 1-BR in Belmont Heights alley conversion — leased $2,650/mo, Aug 2024"
Coastal Zone south of PCH requires CDP; soils report often required due to liquefaction.
- Long Beach ADU Pre-Approved Plans ↗
- LBMC 21.45 — ADU code ↗
- CA HCD ADU Handbook (2024) ↗
- CA Title 24, Part 6 (2022) — solar PV requirements ↗
- Zillow Research — home value & rent index ↗
- California Association of Realtors market data ↗
Figures are editorial typicals compiled from public planning ordinances, CA HCD guidance, and publicly reported market data. Always confirm against your APN, current city counter handouts, and a licensed surveyor's findings before financial decisions.
What it actually feels like in Long Beach, right now.
Twenty signals a superintendent actually reads before deciding to pour, paint, deck a roof, or send a crane day. Pulled live the moment this page loads — Google Weather + EPA AQI + Pollen — for the exact coordinates of Long Beach.
Moderate marine influence — warmer than Santa Monica, cooler than Lakewood.
Reading sky…
Feels — · wind — · humidity —%
Reading the air
Reading pollen…
—
Twenty calls for today's site.
Derived from live feedSource: Google Maps Platform — Weather, Air Quality & Pollen APIs · coords 33.770, -118.194 · —
Hazard profile — Long Beach
USGS · FEMA · CAL FIRE
Three risks that shape what we build and how we build it: seismicity, flooding, and wildfire WUI.
CBC Seismic Design Category D applies across LA County. Every ADU we build uses pre-engineered shear-wall hold-downs and Simpson Strong-Tie connectors.
Querying FEMA NFHL…
Minimal FEMA exposure. Standard CA grading and drainage practices apply.
Outside the Wildland-Urban Interface — standard CBC exterior assemblies permitted.
Sources: USGS FDSN earthquake catalog (last 30 days, 80 km radius) · FEMA NFHL flood hazard zones (point lookup) · CAL FIRE Fire Hazard Severity Zones (LRA/SRA composite).
Solar potential in Long Beach
Google Solar API · — imagery
Roof-resolution analysis for the city centroid — apply a specific address above for parcel-level data.
Awaiting imagery
Direct usable solar hours on best roof segment
Standard residential mod
Equivalent metric tons of CO₂ avoided annually
Source: Google Solar API (building-insights, max-config). Energy converted to USD at the statewide residential weighted-average rate (CPUC, 2025). Your exact parcel will deviate based on shading, azimuth, and panel choice.
Pressure-test your Long Beach ADU before you sign.
Enter a specific address or ZIP to retarget every module below to your parcel — envelope, energy code, and ministerial-approval eligibility.
What fits on a Long Beach lot.
Live-modeled per California state ADU law (AB 2221). Side and rear setbacks pinned to the 4-ft state minimum; adjust lot size and front conditions below.
- Rear-yard buildable
- 2,352 sq ft
- Max ADU footprint
- 1,200 sq ft
- Side / rear setback
- 4 ft each
- Max height (detached)
- 16 ft
state cap
state minimum
AB 2221
Long Beach sits in Climate Zone 8 — Coastal Inland.
Inland LA Basin. Hot summers, mild winters. Cooling-dominated.
- HVAC strategy
- Heat pump w/ variable-speed AC. West shading mandatory.
- Envelope minimums
- Wall R-15 · Ceiling R-38 · Slab perimeter R-0
- Glazing performance
- U-0.30 · SHGC 0.23
- Compliance cost impact
- moderate vs CZ 6 baseline
Per CEC Reference Appendices JA1. Numbers are 2022 Title 24 Part 6 prescriptive baseline for low-rise residential; performance path may substitute trade-offs.
Do you qualify for the 60-day state path?
California's Gov't Code §65852.2 forces Long Beach Development to approve a compliant ADU within 60 days — no discretionary review. Answer six yes/no questions to see if your project qualifies.
- 01
Is your parcel zoned single-family or multi-family residential?
R-1, R-2, R-3, RD — most LA County residential lots qualify.
- 02
Is there an existing or proposed primary dwelling on the lot?
ADUs are accessory by definition — a primary unit must exist.
- 03
Will the ADU be ≤ 1,200 sq ft and ≤ 16 ft tall (detached)?
State law guarantees ministerial approval within these limits.
- 04
Can you meet 4-ft side and rear setbacks?
State minimum — local zoning cannot require more for state-eligible ADUs.
- 05
Will the owner occupy either the primary or the ADU?
Required only for JADUs after Jan 2025; standard ADUs are exempt.
- 06
Is the property free of HOA restrictions that prohibit ADUs?
AB 670 voids HOA bans on ADUs in SFR zones — but check CC&Rs.
Answer all six to see your path.
ADU return modeler — Long Beach
Interactive
Pre-seeded with Long Beach pricing and rent. Tune the inputs to model your parcel — the numbers update instantly.
Model assumes a single long-term tenant. STR/MTR scenarios run materially higher but require operator overhead — happy to model those on request. Not a securities offering or financial advice; for planning use only.
Material suppliers near Long Beach
Google Places · 8 km radius
Live look at where our crews source lumber, hardware, and bulk materials — useful when you want to walk into a yard yourself.
Source: Google Places API (New) · nearby search · ranked by distance from Long Beach centroid.
Pick your neighborhood — numbers re-tune.
Showing citywide typicals for Long Beach. Pick a neighborhood above to see lot character, ZIP-level rent ranges, a recent comp, and the permit nuance unique to that block.
Belmont Shore
ZIP 90803
Belmont Heights
ZIP 90803
Bixby Knolls
ZIP 90807
California Heights
ZIP 90807
Downtown / East Village
ZIP 90802
Recent work in Long Beach & adjacent submarkets.
- 11Plate № 112024
Long Beach Eastside
Detached 2-BR ADU · 980 sq ft
Local · Long Beach
- 07Plate № 072025
Culver Conversion
Garage Conversion · 480 sq ft
Adjacent submarket
- 09Plate № 092025
Manhattan Beach Studio
Detached ADU · 550 sq ft
Adjacent submarket
Related research for Long Beach
- ADU cost breakdown in Long BeachCost transparency
- Long Beach ADU rental yield modelFinancial modeling
- Financing options for California ADUsCapital options
- ADU in Long Beach: budget questionsFAQ — Cost & Budget
- ADU permits in Long Beach: every questionFAQ — Permits & Code
- Long Beach adu schedule — phase by phaseFAQ — Timeline & Phases
- Construction loans, HELOCs, and cashFAQ — Financing & ROI
- Long Beach-friendly floor plans and finishesFAQ — Design & Specs
- Renting an ADU in Long Beach — rules and yieldsFAQ — Rental & Tax
- Long Beach owners often also consider Beverly HillsCross-city signal
- Pricing in neighboring Santa MonicaCross-city signal
- Long Beach owners often also consider PasadenaCross-city signal
- ADU in nearby BurbankCross-city signal
- Long Beach owners often also consider GlendaleCross-city signal
- Compare adu in Long Beach vs Culver CityCross-city signal
- Browse every city we build ADUs inService hub
- Guide: Long Beach ADU cost and permits in 2026: the field guideEditorial deep-dive
- Read: Title 24 for ADUs: what actually triggers complianceEditorial deep-dive
- Guide: HELOC, cash-out, renovation loan: the ADU money decisionEditorial deep-dive
- Deep dive — The 2025 LA ADU permitting rulebook, decodedEditorial deep-dive
- See our Long Beach Eastside in Long BeachProof of work
- Case study: Culver ConversionProof of work
- TimelinePillar guide
- Browse financePillar guide
- What is ADU?Entity definition
- What is JADU?Entity definition
- What is Detached ADU?Entity definition
- Attached ADU — glossary entryEntity definition
How these Long Beach numbers are derived.
Every figure on this page falls into one of three confidence tiers. We publish the method so you can pressure-test the math before signing.
- Firm
- Pulled from our last 24 months of executed contracts in the region. Quoted ranges, not single points.
- Market data
- Sourced from third-party market trackers (Zillow, Apartments.com, RentCafe) within the last 90 days.
- Modeled
- Estimated from public records, jurisdictional bulletins, and our pro-forma model. Treat as a planning band.
- a
Permit authority & plan check days
Long Beach Development Services is the issuing jurisdiction. Plan-check window of 60–110 days reflects our last twelve submittals here for code-compliant ADU sets; complex sites (hillside, historic, coastal) trend longer. Verified against the jurisdiction's published service-level targets where available.
- b
Median lot size
Modeled from LA County Assessor parcel records (APN database) for R-1 and R-2 zoned residential parcels in the Long Beach city limits. Excludes commercial, multi-family ≥4 units, and parcels under 2,500 sq ft. Median, not mean — large estate lots do not skew the figure.
- c
1-BR & 2-BR rents
90-day trailing median asking rent for ADU-equivalent units (detached cottages, in-law suites, garage conversions) within the Long Beach ZIP codes, blended across Zillow Rent Index, Apartments.com, and RentCafe. Excludes furnished short-term listings.
- d
Starting price & cost / sq ft
Firm. Averaged from our last 24 months of signed contracts for comparable scope (Long Beach or adjacent submarket). Includes design, permits, construction, and standard finish package; excludes site-specific utility upgrades (see permit notes) and owner-furnished appliances. Quoted from $138K.
- e
Estimated annual ROI
Modeled as (annual gross rent − operating expenses) ÷ all-in project cost. Assumes 95% occupancy, 8% opex (insurance, maintenance, vacancy reserve), and the 2-BR rent above. Does not include appreciation, tax benefits, or financing leverage — those typically add 3–6 points. Published range of 12–16% reflects floor and ceiling scenarios.
Numbers refresh quarterly. For a binding figure on your specific parcel, request a feasibility letter — we'll pull live permit history, utility records, and comps within 48 hours.
§ VII · Long Beach · 7 entries
Questions, answered for Long Beach.
The answers below use Long Beach's own permit window, fees, and rents — not generic county-wide ranges. For the full reference, see the Reference Desk.
Don't see your question? The full Reference Desk has every answer across cost, permits, SB-9, rentals, and process.
Other cities
Long Beach reference desk
Questions Long Beach homeowners ask us
Pulled from our 5,000-answer California reference desk — filtered to permits, costs, ROI, and design calls that actually matter on Long Beach lots.
What does a ADU cost in Long Beach in 2026?
In Long Beach, a turnkey ADU typically starts around $138K and runs $305–$365 per square foot installed, depending on size, finish tier, and site conditions. Permit and impact fees layer $18K–$30K on top of construction, and Long Beach Development Services runs plan check 60–110 days on a clean submittal.What are the actual permit and impact fees for a ADU in Long Beach?
For a permitted construction scope in Long Beach, the Long Beach Development Services fee stack typically lands $18K–$30K all-in: plan check, building permit, school impact (when triggered), sewer capacity, and energy compliance review. The single biggest variable is utility capacity — Long Beach Utilities turnarounds among the fastest in the region.What is the per-square-foot price for a ADU in Long Beach?
Honest 2026 pricing for a ADU in Long Beach runs $305–$365 installed. Smaller footprints carry a higher $/sqft because fixed costs (kitchen, bath, utility tie-ins) spread over fewer feet. Bids that come in 20% under this band almost always exclude site work, Title 24, or impact fees — ask for a line-item breakdown before you compare.How can I make a ADU in Long Beach cheaper without compromising quality?
Four levers actually move the number in Long Beach: (1) use pre-approved standard plans where the jurisdiction publishes them — cuts plan check 30–45 days and trims design fees; (2) keep the footprint rectangular — every jog adds $3K–$6K of framing and roof complexity; (3) specify workhorse-tier finishes (LG STUDIO, Bosch 500, KraftMaid) instead of paid-name luxury — same daily UX at 35% lower spend; (4) sequence long beach utilities turnarounds among the fastest in the region early to avoid schedule penalties.How long does a ADU permit take in Long Beach?
Long Beach Development Services runs plan check 60–110 days on a complete, code-conformant submittal for a ADU. First-cycle approvals depend on three things: a stamped structural set, a Title 24 energy report bound into the package, and a site plan with verified setbacks. Most slippage comes from missing one of those three on first submittal.Why do ADU permits get rejected in Long Beach?
In Long Beach, the five most common first-cycle corrections are: (1) Title 24 energy compliance not bound to the submittal, (2) site plan setback math off by inches, (3) structural calcs not stamped by a CA-licensed engineer, (4) utility load calculations missing for the panel upgrade, and (5) drainage/grading not addressed for impervious-surface adds. Fixing all five before submittal cuts 60–110 days off the schedule.Does state ADU law override Long Beach rules for my ADU?
For qualifying ADU and JADU scopes, California Government Code §65852.2 and §65852.22 preempt most local discretionary review — Long Beach cannot impose owner-occupancy requirements (banned by AB 976), most parking minimums near transit, or stylistic design review. Local jurisdictions still control building-code application, Title 24, utility connection, and impact fee schedules. Non-ADU scopes (full additions, remodels, hillside builds) remain fully under local control.Are pre-approved standard plans available in Long Beach for a ADU?
Where Long Beach has adopted a pre-approved standard ADU plan program, using one cuts plan check by 30–60 days and removes the structural review fee. For programs that exist (LADBS, San Jose, San Diego), the trade-off is that floor-plan changes void the pre-approval. Most owners are better off using a standard plan as a starting point and accepting the layout it ships with.How long does a ADU take in Long Beach from start to finish?
End-to-end for a ADU in Long Beach: feasibility + design 6–10 weeks, Long Beach Development Services plan check 60–110 days, construction 16–22 weeks, inspections + closeout 2–3 weeks. Realistic total: 9–14 months with a competent team and clean submittals. Add 6–12 weeks for long beach utilities turnarounds among the fastest in the region..What is the actual construction schedule for a ADU in Long Beach?
Once permits issue in Long Beach, a ADU runs roughly: mobilization 1 wk, foundation 2–3 wks, framing + dry-in 3–4 wks, MEP rough 3 wks, drywall + finish 5–7 wks, inspections + punch 2 wks. The largest single source of slippage is inspector scheduling; the second is finish-material lead time (60–90 days on premium tile, 8–12 weeks on imported windows).Is there a fast-track path for a ADU in Long Beach?
Long Beach Development Services doesn't run a paid fast-track for residential work, but submittal quality compresses the timeline the same way: a fully bound set with stamped structural, Title 24, and verified site plan typically clears in 60 days rather than the upper end. Express service exists at LADBS for certain scopes — confirm eligibility before paying the fee.Does weather affect ADU schedules in Long Beach?
Most Long Beach sites lose 5–10 working days a year to weather — Pacific atmospheric-river storms January–March, and red-flag wind days that pause crane work and roof tear-offs. Plan to dry-in (roof on, windows in) before December if the schedule allows; once the building is weather-tight, the finish trades run year-round.