Fast, Reliable ADU Design & Permitting Across Inglewood
ADU design and permitting in Inglewood typically runs $18,000-$42,000 for the full design-build package, from initial site assessment through final inspection, with garage conversions starting lower and new detached units at the upper end. Our ADU Design & Permitting team coordinates dispatch and scheduling from our Los Angeles office, with crews serving Inglewood properties directly - usually on-site within 48 hours of your call. We know the difference between a bungalow north of Century Boulevard and a ranch home near the Forum, and we know what Inglewood planning and building safety actually asks for at counter.
Call (213) 329-7167 to schedule your free estimate. We’ll bring a written price, not a sales pitch.
Why Ellery ADU Studio West Hollywood Is Inglewood’s Preferred ADU Design & Permitting Company
We’ve designed, permitted, and built ADUs across Inglewood since 2015 - the same year California’s statewide ADU laws began reshaping what homeowners could build. That timing matters. We learned Inglewood’s local amendments as they were written, not as afterthoughts.
Our reputation here is built on documentation, not promises. Every project receives a written price before any work starts, per Haven Standard Clause 1. Every site visit produces a documented photo record. And our 365-Day Done Right Promise is backed in writing before the first wall opens.
Response time to Inglewood averages under 48 hours for initial site assessments. Crews are background-checked, uniformed, and licensed - the license number appears on every page of our documentation. A live person answers calls 24/7, no voicemail queue.
We understand Inglewood’s specific conditions: the 1940s-1960s housing stock, the LAX noise contour overlay, and the planning department’s current backlog. That local fluency keeps permits moving and avoids the redesigns that stall projects for months.
Our ADU Design & Permitting Services in Inglewood

Site Assessment
Every Inglewood ADU starts with what we find, not what we assume. Our site assessment documents your existing structure, utility capacity, and property conditions with photographs you receive. On a recent project between Prairie Avenue and Inglewood Avenue near Hollywood Park, our assessment found a 70-amp sub-panel, no garage slab vapor barrier, and stud bays packed with deteriorating 1950s fiberboard sheathing. Because we caught this before drawing, we priced the electrical upgrade and sheathing repair as written allowances - not surprises after demolition. In Inglewood, where most garages were built to 1950s standards, this step is not optional.

ADU Design & Blueprints
Our blueprints are permit-ready, not concept sketches. For Inglewood properties inside the FAA’s 65 dB CNEL noise contour - large portions of the city under the LAX flight path - we specify STC-rated fixed glazing and mechanical ventilation systems that standard ADU plans miss. A contractor in Hawthorne might spec operable windows; Inglewood plan check will flag it. We overlay LA County noise contour maps before the first line is drawn. Our drawings include structural, electrical, plumbing, and energy compliance sheets - the full permit set Inglewood building safety requires.

Permit Application
We walk permits through Inglewood planning and building safety, not hand them off. Our team knows the current submittal requirements, digital portal quirks, and typical review timelines. Because our permit sets are complete - no placeholder details, no “by others” gaps - we avoid the resubmittals that add 6-10 weeks to projects drawn by designers who don’t build.

HOA & Zoning Compliance
Inglewood’s zoning for ADUs is favorable, but HOAs and specific plan overlays still apply in pockets of the city. We verify CC&R restrictions, lot coverage calculations, and parking replacement requirements before design begins. If your property has a specific plan or historic overlay, we flag it in the first meeting - not at permit submittal.

Title 24 Energy Compliance
California’s Title 24 energy code applies to every new ADU in Inglewood, but compliance paths differ for conversions versus new construction. For garage conversions on 1950s Inglewood homes, we typically pursue the prescriptive package: high-efficacy lighting, low-flow fixtures, and insulation upgrades to existing envelope assemblies. For new detached units, we run performance modeling to optimize wall assemblies and mechanical systems. We handle the CF-1R and CF-6R documentation, HERS verification scheduling, and final compliance sign-off - not as an add-on, but as a standard deliverable in our permit set.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Inglewood
Ellery ADU Studio specifies and coordinates prefab and modular systems from Abodu, Cover, Dvele, Mighty Buildings, and other manufacturers within the same single-contract framework. For Inglewood homeowners considering a prefab ADU, we evaluate site access, crane clearance, and foundation requirements against the manufacturer’s specifications - then handle the state-approved installation documentation and local permit coordination. Whether you’re comparing a site-built conversion or a factory-delivered unit, the written price, permit set, and 365-Day Done Right Promise apply identically.
Common ADU Design & Permitting Problems We See in Inglewood Homes

- Permit applications drawn off assumed garage conditions. A 1950s Inglewood garage with a 60-amp sub-panel and uninsulated CMU walls cannot support a permitted dwelling unit without electrical service upgrade and thermal envelope work. We verify actual conditions before the first drawing.
- Plans missing LAX noise contour compliance. Contractors outside the flight path routinely spec standard windows and natural ventilation. Inglewood properties inside the 65 dB CNEL line require STC-rated glazing and mechanical fresh-air systems - a detail that forces redesign if caught late.
- Fixed-price contracts with no allowances for concealed conditions. Once walls open on a 1940s bungalow, we find outdated wiring, failed waterproofing, and damaged framing. Our contracts include written allowances for these conditions, priced and approved before demolition begins.
- Title 24 modeled by rule-of-thumb instead of software. Inglewood’s mild coastal climate affects heating and cooling load calculations. We run actual performance modeling, not guesswork, to avoid HERS failures that delay final inspection.
Pricing for ADU Design & Permitting in Inglewood, CA
| Service Component | Typical Range in Inglewood |
|---|---|
| Site Assessment + Feasibility Study | $1,800-$3,200 |
| ADU Design & Blueprints (permit-ready set) | $8,500-$16,000 |
| Permit Application & Plan Check Coordination | $3,500-$6,500 |
| Title 24 Energy Compliance Documentation | $1,200-$2,400 |
| Full Design-Build Package (drawings through final inspection) | $18,000-$42,000 |
Garage conversion ADUs in Inglewood typically run $85,000-$145,000 all-in, drawings through final inspection. New detached ADUs run $185,000-$340,000. The LAX noise contour adds $4,000-$8,000 for STC-rated glazing and mechanical ventilation on affected properties. Electrical service upgrades from 60-100 amp to 200 amp add $3,500-$7,500. Every project receives a written price before any work starts, per Haven Standard Clause 1. No exceptions.
Call (213) 329-7167 for your exact quote - estimates are free, and we offer a Free Second Opinion on any written estimate already in hand.
We Also Serve Cities Near Inglewood

Our crews work throughout the Westside and South Bay, including Culver City, Los Angeles, Santa Monica, and West Hollywood. Each city’s planning department, noise contours, and housing stock present different design and permitting requirements - we adjust our permit sets accordingly, never recycling drawings across jurisdictions.
Serving Inglewood, CA - Our Local Coverage Area
We’re based in the Inglewood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - ADU Design & Permitting in Inglewood

Yes, if your property falls inside the FAA’s 65 dB CNEL contour, which covers large portions of Inglewood under the LAX flight path. STC-rated fixed glazing and mechanical ventilation are mandatory for habitable space in this zone; operable windows for natural ventilation do not comply. We overlay LA County noise contour maps during site assessment and specify compliant assemblies in our blueprints before permit submittal. Call (213) 329-7167 to check your property’s status and receive a written quote.
Because most initial quotes assume ideal conditions that 1950s Inglewood garages do not have: 60-100 amp electrical service, uninsulated CMU or wood-frame walls, no vapor barrier, and deteriorating sheathing. Our site assessment documents actual conditions, then our contract includes written allowances for the upgrades required. Under Haven Standard Clause 5, no work proceeds beyond the signed scope without your written approval of the revised price. Call (213) 329-7167 for a second opinion on any estimate that seems too low.
Properties within a half-mile of SoFi Stadium, Intuit Dome, and the Hollywood Park district are seeing ADU ROI calculations that neighboring cities cannot match. Event-night rental premiums and sustained rent growth make garage conversions and junior ADUs particularly attractive here. We evaluate your lot size, existing structure, and specific plan overlays to confirm feasibility and projected returns. Call (213) 329-7167 to schedule a feasibility study with written findings.
For Inglewood garage conversions, we typically pursue the prescriptive compliance path: insulation upgrades to walls and roof, high-efficacy LED lighting, low-flow plumbing fixtures, and cool roof or wall reflectance where applicable. We prepare the CF-1R forms, coordinate HERS verification, and submit compliance documentation with the permit set. The mild coastal climate affects load calculations, so we run actual modeling rather than applying inland assumptions. Call (213) 329-7167 for specifics on your conversion.
Yes. We coordinate prefab ADU permits for Abodu, Cover, and Mighty Buildings units in Inglewood, handling state-approved installation documentation, foundation engineering, utility tie-ins, and local plan check. The manufacturer delivers the unit; we ensure the site work and permitting meet Inglewood’s requirements, including noise contour compliance where applicable. The same single-contract, written-price structure applies. Call (213) 329-7167 to compare prefab versus site-built options for your property.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Inglewood since 2015.