ADU Design & Permitting Near Me in Long Beach - Plans, Permits & Build, One Fixed Price

ADU Design & Permitting Near You in Long Beach, CA

If you’re searching for ADU design and permitting near you, Ellery ADU Studio is based in Long Beach and covers the surrounding South Bay and Southeast LA communities. Every project starts with a written price before any work begins – no estimates that shift after you sign, no designer-versus-builder finger-pointing mid-project. Call (562) 414-4842 and a live person will answer.

Nadia Ellery founded Ellery ADU Studio in 2015, the same year California’s ADU statute began reshaping what homeowners could legally build on a single-family lot. Since then, the studio has designed, permitted, and built more than 900 ADUs through our ADU Design & Permitting services – each one under a single contract, at a single written price, from the first drawing to the final inspection sign-off. That single-contract model is the point: when the design team and the build crew answer to the same written scope, there’s no gap for a project to fall through.

Homeowners in Long Beach, Lakewood, Carson, Cerritos, Cypress, Compton, Norwalk, and Downey come to us because they want the permit set treated as the core product, not a checkbox item handed off to a contractor they’ve never met. If that describes where you are in your thinking, you’re in the right place.

Fast, Local ADU Design & Permitting

A live person answers every call to (562) 414-4842 around the clock – no voicemail queue, no callback that shows up two days later. For homeowners who have already received a written estimate from another firm, we offer a Free Second Opinion at no charge, usually completed within one business day.

Site Assessment for Long Beach properties are typically scheduled within the week. The permit set – measured drawings, title-24 energy calculations, structural notes, and the full documentation package the City of Long Beach Building and Safety Division requires – is prepared in-house, not outsourced. That keeps the timeline tighter and means the person who drew the plans is the same team answering the building department’s correction requests. For standard R-1 lots in Long Beach, most permit applications are ready to submit within four to six weeks of the signed contract.

What “Near Me” Actually Means for ADU Permits in Long Beach

Searching “near me” for ADU design and permitting is reasonable shorthand, but proximity only matters if the studio knows your local code environment. Long Beach runs its permitting through the Department of Development Services, and the city has its own ADU-specific checklist layered on top of California’s state ADU law. That checklist has changed several times since 2020, and the version in effect as of 2025 includes specific requirements around utility connections, separate electric meters for detached ADUs over 750 square feet, and fire-sprinkler triggers that catch a lot of out-of-area designers off guard.

A few things Long Beach homeowners run into that general-purpose designers sometimes miss:

• Parking replacement rules for garage conversions: Long Beach generally does not require you to replace removed garage parking if your property is within a half-mile of a transit stop – but documenting that transit proximity in the permit set is the applicant’s job, not the city’s.
• Flood zone overlays in Wrigley and the Lower Westside: Parts of Long Beach sit in FEMA Zone AE. A detached ADU in one of those parcels needs a finished floor elevation set at or above the base flood elevation, and that number has to appear on the grading plan.
• Height limits in historic districts: Naples Island, Carroll Park, and sections of Bluff Park have design-review overlays. An ADU permit application in those areas moves differently than a standard R-1 application two miles away.
• Minimum setbacks for detached ADUs: California state law sets a four-foot rear and side setback for most detached ADUs, but Long Beach has additional street-facing setback requirements for corner lots that frequently surprise first-time applicants.

We handle all of this inside the single contract. Under Haven Standard Clause 5 (No Surprises), the scope is locked at signing. If the city issues a correction request during plan check, responding to it is our job, not a change order.

Before

After

Services Covered Under One Contract

Ellery ADU Studio handles five categories of work, and all five can be wrapped into a single written agreement:

• ADU Design & Permitting – measured existing conditions, schematic design, construction documents, and a complete permit set submitted to the City of Long Beach.
• Garage Conversion ADU – structural assessment of the existing slab and framing, Title-24 envelope compliance, utility separation drawings, and full permit coordination. Garage conversion ADUs in Long Beach typically run $120,000-$185,000 all-in, drawings through final inspection, depending on the existing structure and utility conditions. That range is a starting point; your written quote will be specific to your address.
• New Detached ADU – site plan, foundation design, full construction documents, and build. Detached ADUs on standard Long Beach R-1 lots have run $180,000-$320,000 all-in in recent projects, varying by size, site conditions, and finish level. Written price before any work starts, per Haven Standard Clause 1.
• Junior ADU & Interior Conversion – conversion of existing interior space (typically a bedroom suite or attached garage) to a permitted JADU with a separate entrance and efficiency kitchen. JADUs in Long Beach have come in between $60,000 and $110,000 all-in in our recent work, depending on how much of the existing MEP infrastructure can be reused.
• ADU Site Prep & Utilities – grading, drainage, sewer lateral separation, electrical service upgrades, and gas line extensions, all documented and permitted before the foundation is poured.

We also specify and coordinate prefab and modular ADU systems from Abodu, Cover, Dvele, Mighty Buildings, Boxabl, Plant Prefab, Tuff Shed, and James Hardie within the same single contract. If a prefab system makes sense for your lot and timeline, we’ll tell you which ones are approvable under Long Beach’s current permit requirements and what the realistic all-in cost looks like.

The 365-Day Done Right Promise

Every project Ellery ADU Studio completes is backed by the 365-Day Done Right Promise: if the finished ADU is not built to the permitted drawings, we make it right. That commitment is written into the contract before the project starts – it’s not a marketing line, it’s a clause you can point to. Combined with the documented photo record that accompanies every site visit, it means you have an evidence trail, not a verbal assurance, from day one through the certificate of occupancy.

Nadia Ellery’s background-checked, uniformed crews carry the studio’s license number on every visit. You’ll know who is on your property and why.

Areas We Cover

Ellery ADU Studio works throughout Long Beach and the surrounding cities. Our primary service area takes in Long Beach (including Bixby Knolls, Signal Hill, Belmont Shore, Wrigley, and the Traffic Circle neighborhoods), Lakewood, Carson, Cerritos, Cypress, Compton, Norwalk, and Downey.

If you’re in one of these cities and want to understand what your lot will support under current state and local ADU law, the right starting point is our ADU Design & Permitting in Long Beach page, which walks through the Long Beach-specific permit checklist, setback rules, and recent code changes in detail. You can also reach the home page for a full overview of every service category and the Haven Standard that governs them.

Permit requirements in Cerritos and Norwalk run through Los Angeles County Building and Safety rather than a city department, which affects how correction requests are handled and how long ministerial approval typically takes. In Cypress and Lakewood, the city’s own building division reviews ADU applications for HOA & Zoning Compliance, and both cities have adopted the state’s streamlined ADU approval process for compliant projects. We know which desk each application lands on and what that desk expects to see.

Typical Timeline: What to Expect

1. Written quote delivered – before any work begins, per Haven Standard Clause 1. Typically within two to three business days of the site visit.
2. Existing conditions documentation – measured drawings of the existing structure and site, with a documented photo record. This is the evidence base for every decision that follows.
3. Schematic design and owner review – floor plan options, exterior massing, and a preliminary cost-by-line-item review. No changes are locked until you approve the direction in writing.
4. Construction documents and permit set – full drawing package prepared to Long Beach Building and Safety standards, including Title-24 energy calculations, structural engineering, and all required supplemental forms.
5. Permit submission and plan check response – we submit, track the application, and handle all correction requests. This phase runs four to twelve weeks depending on the project type and the city’s current review load.
6. Construction – work begins after the permit is issued and all subcontractors are scheduled. The permitted drawings govern every field decision.
7. Final inspection and certificate of occupancy – we schedule and attend all inspections. The project is not closed until the city issues the certificate of occupancy and the 365-Day Done Right Promise clock starts.

Pricing Transparency: What’s on the Page, What’s in the Quote

The ranges below come from Ellery ADU Studio’s completed Long Beach-area projects. They’re starting points, not binding numbers – your written quote, delivered before any work begins, will be specific to your address, your existing structure, and your finish selections.

These figures assume standard Long Beach R-1 zoning without flood zone overlays or historic district review. Projects in Naples Island, Carroll Park, or FEMA Zone AE parcels should expect the upper end of the range and a longer permit timeline. We’ll tell you which category your lot falls into on the first site visit, and we’ll put it in writing.

Frequently Asked Questions

How quickly can you start an ADU design project near Long Beach?

Initial site visits for Long Beach and nearby cities are typically scheduled within the week. After the site visit, a written quote is delivered within two to three business days – no work starts before you have a number on paper, per Haven Standard Clause 1. If you already have a written estimate from another firm, we can turn around a Free Second Opinion within one business day. Call (562) 414-4842 to schedule.

Do you serve cities near Long Beach, like Lakewood, Carson, or Cerritos?

Yes. Ellery ADU Studio’s service area covers Long Beach, Lakewood, Carson, Cerritos, Cypress, Compton, Norwalk, and Downey. Permit routing varies by city – Cerritos and Norwalk go through LA County Building and Safety, while Lakewood and Cypress have their own building divisions – and we handle all of that within the single contract. If you’re not sure whether your address is in our area, call (562) 414-4842 and we’ll confirm in a few minutes.

How much does ADU design and permitting cost near Long Beach?

ADU design and permitting costs in the Long Beach area depend on project type: Junior ADUs typically run $60,000-$110,000 all-in, garage conversions run $120,000-$185,000, and new detached ADUs run $180,000-$320,000, all from drawings through final inspection under one contract. Those are ranges from completed projects; your written quote will be specific to your address and locked before any work starts. Call (562) 414-4842 for a site visit and written number.

Can I reach someone after hours if I have questions about my ADU project?

A live person answers calls to (562) 414-4842 around the clock. There’s no voicemail queue and no callback system. If you have a question about your permit status, a correction request from the building department, or anything else mid-project, you’ll reach a person – not a recording.

Key Takeaways

• Ellery ADU Studio has been based in Long Beach since 2015, with more than 900 ADUs designed, permitted, and built under a single contract model.
• Every project starts with a written price before any work begins – Haven Standard Clause 1, no exceptions.
• The studio covers Long Beach, Lakewood, Carson, Cerritos, Cypress, Compton, Norwalk, and Downey, handling permit routing for each city’s specific building division.
• Long Beach-specific permit requirements – flood zone overlays, historic district review, garage parking documentation, and utility separation rules – are handled in-house, not outsourced.
• The 365-Day Done Right Promise is written into every contract: if the finished ADU is not built to the permitted drawings, Ellery makes it right.
• A Free Second Opinion is available on any written estimate already in hand, typically completed within one business day.
• A live person answers (562) 414-4842 around the clock.

Ready to Talk About Your ADU?

If you’re a Long Beach homeowner – or a homeowner in Lakewood, Carson, Cerritos, Cypress, Compton, Norwalk, or Downey – and you want a written price before anything moves forward, call (562) 414-4842. Nadia Ellery’s team answers every call live, schedules site visits quickly, and delivers a written quote specific to your address within a few business days. If you already have a competing estimate, bring it – the Free Second Opinion is available at no charge and takes one business day. No urgency theatre, no vague estimates, no scope that shifts after you sign: just the permit set, the written price, and the work.

Written by Nadia Ellery, Owner at Ellery ADU Studio Long Beach, serving Long Beach and nearby areas since 2015.