Permit Application in West Hollywood, CA
Submitting an ADU Design & Permitting application in West Hollywood means navigating the City of West Hollywood’s Planning and Development Services department, California Title 24 energy compliance, and the State’s ADU-specific ministerial approval rules – all at once, in the correct sequence, or the application comes back. At Ellery ADU Studio, permit application is not a hand-off to a third-party expediter; it is the core of what we do. Every permit set we assemble is drawn in-house, checked against West Hollywood’s current design standards, and submitted under our name – so there is one point of accountability, not three.
If you have a written estimate from another studio or a contractor and want a second opinion before committing, call us at (213) 329-7167 – that review is free and comes with a written comparison, not a sales pitch. Our full permit application work sits within our broader ADU Design & Permitting in West Hollywood practice, which covers everything from the initial feasibility study through final inspection sign-off.
Since 2015, Nadia Ellery and the Ellery ADU Studio team have prepared and submitted permit applications for more than 900 ADU projects across Los Angeles County. West Hollywood’s compact parcel grid, dense R1 and R1B zoning, and the city’s own supplemental ADU guidelines – layered on top of state law – make local experience the difference between a 30-day approval and a six-month correction cycle.
When You Need Permit Application
- You own a single-family lot in West Hollywood and want to add rental income. State law AB 2221 and SB 897 removed many of the barriers that used to block ADUs on West Hollywood’s smaller R1 lots, but the application still requires a site plan that reflects current setbacks, height limits, and the city’s rear-yard open space rules. Getting that plan wrong on page one restarts the clock.
- Your garage is detached and you want to convert it. West Hollywood sees a high volume of garage conversion applications, particularly in the Norma Triangle and Spaulding Square neighborhoods. A garage conversion permit application requires a structural assessment, energy compliance documentation, and – on older structures – verification that the existing slab meets California’s residential floor load requirements.
- You received a correction notice from West Hollywood Planning. Correction notices from West Hollywood’s Development Services counter are specific: a missing fire-separation detail, an incorrect occupancy classification, or a civil engineer’s wet stamp that was omitted. We read those notices and answer each line in writing before resubmission, rather than guessing.
- A previous designer delivered drawings that have never been submitted. This is more common in West Hollywood than most homeowners expect. Drawings prepared for a project that stalled often need to be updated to reflect code changes, new energy standards, or revised ADU guidelines before they are viable for submission. We review what you have before quoting new work.
- You want a Junior ADU carved out of your existing primary residence. West Hollywood allows JADUs up to 500 square feet within the walls of an existing single-family home. The permit application for a JADU is shorter than a full ADU application, but it still requires a deed restriction recorded with Los Angeles County before the city will issue the building permit – a step that is frequently missed.
- You are buying a West Hollywood property and want permit feasibility confirmed before close of escrow. Pre-purchase ADU feasibility reviews can identify whether the lot can support the ADU type you have in mind – and what a realistic permit timeline looks like – before you are committed to the acquisition.
Our Permit Application Process

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Written Price Before Anything Moves
Under Haven Standard Clause 1, no work starts without a written price in your hand. That means the permit application fee, the drawing preparation, the Title 24 energy report, and any civil or structural engineering coordination are quoted as a single number before the first site visit is scheduled. There is no “we’ll send the engineering invoice separately” on an Ellery project.
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Site Documentation and Existing Conditions Survey
Our Site Assessment team measures the existing structure, the lot, and every relevant setback on-site – and we photograph everything. Clients receive a documented photo record of what we found: the slab thickness, the existing utility connections, the eave heights, the distance from the rear property line to the nearest existing structure. In West Hollywood’s older residential stock, those measurements frequently differ from what the county assessor’s records show, and the city will catch it if your drawings don’t reflect reality.
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Permit Set Preparation
We produce the full ADU Design & Blueprints in-house: site plan, floor plans, elevations, sections, electrical, mechanical, and plumbing schematics, and the Title 24 energy compliance documentation. For projects that require it – typically new detached ADUs over 750 square feet or any garage conversion where the existing slab is thinner than four inches – we coordinate the structural engineering package and deliver it as part of the same set, not as a separate contract you have to manage. Where the design calls for fiber-cement siding, we specify James Hardie products by product line and attachment detail, so the building inspector has everything needed to approve it without a field clarification request.
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Pre-Submittal Review Against West Hollywood’s Current Guidelines
Before the application touches the counter, we run the set against West Hollywood’s supplemental ADU standards, the California Building Code, and any active Los Angeles County Fire overlay that applies to the parcel. West Hollywood’s design standards include specific requirements around privacy screening, exterior lighting, and landscaping replacement that the state ADU statute does not override. Catching a non-conforming detail at this stage takes an hour; catching it after the city issues a correction notice takes weeks.
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Application Submission and Active Tracking
We submit the application – electronically through West Hollywood’s permitting portal where accepted, or at the counter for plan sets that require physical review – and we track it. When the plan checker has a question, they reach us directly. When a correction is issued, we respond to each line item in writing within the turnaround window the city allows. Clients receive a status update at every stage, not a silence that ends when the permit arrives.
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Permit Issuance and Handoff to Construction
Because Ellery operates as a design-build studio under a single contract, the permit set that gets approved is the exact set the construction crew builds from. There is no translation layer between what the designer drew and what the builder interprets. Under the 365-Day Done Right Promise, if the finished ADU is not built to the permitted drawings, we make it right – in writing, before the project starts, not as a verbal assurance after something goes sideways.
Before
AfterPermit Application Pricing in West Hollywood
ADU permit application in West Hollywood typically costs between $8,500 and $18,000 for the complete permit set preparation and submission – drawings, Title 24 energy report, structural coordination where required, and all city fees paid through initial permit issuance. That range reflects the actual variation we see across project types in West Hollywood, not a floor that gets revised upward after the first meeting.
| ADU Type | Typical Permit Application Range (all-in) | What Drives Cost |
|---|---|---|
| Junior ADU (JADU, interior conversion) | $8,500 – $11,000 | Simpler drawing set; deed restriction preparation adds a flat fee; no structural engineering in most cases |
| Garage Conversion ADU | $10,000 – $14,500 | Structural assessment of existing slab and framing; energy compliance for converted envelope; occasionally fire-separation upgrades |
| New Detached ADU (up to 850 sq ft) | $12,500 – $18,000 | Full architectural and structural set; civil grading and drainage plan if lot has a slope; West Hollywood’s landscaping replacement documentation |
| Prefab/Modular ADU (e.g., Abodu, Cover) | $9,500 – $14,000 | Manufacturer’s pre-approved plan set reduces drawing hours; site-specific civil and utility documentation still required |
City of West Hollywood permit fees are separate from design fees and vary by project valuation – plan check fees for a new detached ADU in the $150,000 – $200,000 construction valuation range typically run $3,000 – $5,500, paid directly to the city. Those fees are itemized in your written quote before work begins, per Haven Standard Clause 1. There are no invoice surprises on an Ellery project.
Call (213) 329-7167 and we will give you a written project quote – specific to your address, your parcel, and the ADU type you have in mind. If you already have a written estimate from another studio, bring it: the Free Second Opinion review costs nothing and we will tell you exactly where the other quote is comparable and where it is not.
FAQs – Permit Application in West Hollywood

How long does ADU permit approval take in West Hollywood?
West Hollywood’s Planning and Development Services department currently processes ministerial ADU applications – those that qualify for streamlined state approval – in roughly 30 to 60 business days for plan check, though correction rounds can extend that timeline. Projects that trigger discretionary review (uncommon for standard ADUs under state law, but possible if the design triggers a specific local overlay) can take four to six months. Our pre-submittal review is specifically designed to identify discretionary triggers before submission, not after the first correction. If you want a realistic timeline estimate for your specific parcel and ADU type, call (213) 329-7167 and we will walk you through it without a commitment required.
Does West Hollywood have ADU rules that differ from state law?
West Hollywood enforces California’s state ADU statute as the floor, but the city has supplemental design standards that go further: specific requirements on privacy screening for ADUs that overlook neighboring properties, exterior lighting controls, and a landscaping replacement obligation when existing impervious surface is increased. The city’s supplemental standards do not override state law on setbacks or height, but they add documentation requirements that a permit application prepared purely from the state statute will miss. We have submitted applications in West Hollywood since 2015 and know which supplemental requirements the plan checker will flag on a first review.
Can I use a prefab ADU design and still need a full permit application in West Hollywood?
Yes. Even factory-built or modular ADU systems from manufacturers like Abodu or Cover require a site-specific permit application in West Hollywood. The manufacturer’s pre-approved plan set covers the unit itself; the permit application must also include a site plan showing setbacks, a utility connection plan, a grading and drainage plan if the lot has any slope, and West Hollywood’s landscaping documentation. In our experience, prefab projects save roughly 20 to 30 percent on drawing hours compared to fully custom designs, which is reflected in the lower end of our pricing range for those project types. Call (213) 329-7167 for a written quote specific to the prefab system you are considering.
What happens if the city issues a correction notice on my application?
A correction notice from West Hollywood’s plan checker is a written list of specific deficiencies – a missing detail, an incorrect dimension, a code reference that needs to be addressed in the drawing set. When that notice comes in on an Ellery project, we respond to each line item in writing within the city’s allowed resubmission window. The correction response is part of the original contract scope; it does not trigger a new invoice. Under Haven Standard Clause 5 (No Surprises), the scope is locked at signing, which means a correction round is our problem to resolve, not a change order for you to approve. If a correction reveals something genuinely new – a condition that was not knowable from the site survey – we tell you in writing what it is and what it costs before we proceed.
Key Takeaways
- ADU permit application in West Hollywood costs $8,500 – $18,000 all-in for drawing preparation and submission; city plan check fees run an additional $3,000 – $5,500 depending on project valuation.
- West Hollywood has supplemental ADU design standards beyond state law – privacy screening, exterior lighting controls, and landscaping replacement requirements – that a generic permit application will miss.
- Ellery ADU Studio has submitted ADU permit applications in West Hollywood since 2015 as part of a single design-build contract, with one written price before work starts.
- Prefab and modular ADU systems (Abodu, Cover, and others) still require a full site-specific permit application – the manufacturer’s pre-approved plan set covers the unit only.
- Correction notices are resolved within the original contract scope; they do not generate additional invoices under Haven Standard Clause 5.
- A Free Second Opinion on any written estimate is available at no cost – call (213) 329-7167.
Permit application is where most West Hollywood ADU projects either gain momentum or stall out. The difference is almost always in the preparation before the application is submitted – not in how fast you move once it is in. If you are ready to get a written price for your project, or if you want a second opinion on a quote you have already received, call Nadia Ellery and the team at (213) 329-7167. You will reach a live person, get a straight answer, and leave the call with something written down – not a promise to follow up.
Written by Nadia Ellery, Owner at Ellery ADU Studio West Hollywood, serving West Hollywood since 2015.