Permit Application in Anaheim, CA
Permit application for an ADU in Anaheim means preparing and submitting a complete, code-compliant permit set to the City of Anaheim’s Planning and Building Division – then managing every round of corrections until the city issues an approved permit. At Ellery ADU Studio, permit application is not a task we hand off to a third-party expediter. It is part of the same single contract that covers design and construction, because a drawing set that the city won’t stamp is just paper.
Since 2015, Nadia Ellery has led our studio through well over 900 ADU projects across Orange County, every one of them starting with a written price before any work begins – per Haven Standard Clause 1. If you have a project in motion and want a second set of eyes on a permit set or a written estimate you’ve already received, we offer a Free Second Opinion at no charge. For a written project quote or to ask a specific question about Anaheim’s current submission requirements, call (657) 366-5740 – a live person answers, no voicemail queue.
This page covers permit application as a focused task within our broader ADU Design & Permitting in Anaheim service. If you’re earlier in the process and want the full picture of what design through final inspection looks like, that parent page is the right starting point.
When You Need Permit Application
Permit application is the right next step in any of these situations:
- You have an approved site plan or architectural concept but no permit set. A design concept is not a permit set. Anaheim’s Building Division requires stamped structural drawings, an energy compliance report (Title 24), and completed application forms before any review begins. If your designer handed you floor plans without those, you’re not ready to submit.
- You received a plan-check correction letter and don’t know how to respond. Anaheim’s Building Division issues correction letters – sometimes called “first round comments” – that reference specific code sections from the California Building Code, California Residential Code, or local Anaheim Municipal Code Title 18. Responding to those corrections without design experience usually results in a second round of the same corrections.
- You’re converting a garage in a neighborhood with HOA overlay or historic district proximity. Parts of Anaheim near the Colony Historic District or older neighborhoods east of Harbor Boulevard carry additional review steps. We flag those early, before submission.
- Your contractor submitted drawings that were rejected and is now pointing at the designer. This is the designer-versus-builder blame gap. Under our one-contract model, that gap doesn’t exist – the same written price covers both, and under our 365-Day Done Right Promise, if the finished work doesn’t match the permitted drawings, we make it right.
- You’re coordinating a prefab or modular unit and need the city to accept the manufacturer’s documentation. Units from brands like Plant Prefab or Abodu arrive with their own factory drawings and third-party inspection reports. Anaheim’s plan checkers need those documents formatted and referenced correctly within the permit set – we handle that coordination as part of the same contract.
- You want to submit during Anaheim’s SB 9 or ADU ministerial review window to avoid discretionary review delays. State law limits how long Anaheim can sit on a compliant ADU application. Getting into that window requires a complete, checklist-verified submittal on day one. Incomplete submittals reset the clock.
Our Permit Application Process

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Pre-Submittal Site and Zoning Verification
Before a single drawing is printed, we conduct a Site Assessment on your Anaheim property: we pull parcel data for your specific address and confirm zoning, setbacks, lot coverage limits, and any overlay conditions that affect your project. In Anaheim, setback requirements for detached ADUs – the required distance between the new structure and the property line – can vary depending on whether your parcel is in a Single Family Residential (RS) zone or a mixed-density zone. We also check whether your property is in a fire hazard severity zone, which affects exterior material requirements. James Hardie fiber-cement siding, for example, is a common specification on projects in those zones because it meets the ignition-resistant standard. All of this happens before design hours are charged, and the findings go into your written project record.
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Permit Set Preparation
We prepare a complete permit set: architectural drawings, structural drawings and calculations, a Title 24 energy compliance report, site plan with utility connections shown, and any manufacturer documentation required for prefab components. For a standard 500-square-foot detached ADU in Anaheim, this typically produces a set of 12 to 18 drawing sheets. Every sheet is stamped by a licensed professional and cross-referenced so the plan checker can follow the project from site plan to detail without having to ask clarifying questions – because every clarifying question is a delay.
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Application Submission and Fee Payment
Anaheim accepts ADU permit applications through its online eTRAKiT portal and in person at 200 S. Anaheim Blvd. We prepare and file all application forms, calculate and document the applicable permit fees based on the project’s valuation and square footage, and submit the complete package. Anaheim’s current ADU plan check fees for a new detached unit in the 400-800 square foot range typically land between $2,800 and $5,500 in city fees, depending on valuation methodology – those figures are separate from Ellery’s design and permitting fee and are paid directly to the city. We document what was submitted and when, so there is no ambiguity about the start of the review clock.
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Plan Check Response and Correction Management
First-round corrections from Anaheim’s Building Division typically arrive within 30 business days for an over-the-counter review or the state-mandated 60-day window for a standard application. When correction letters come back, we respond to each marked item in writing, revise the drawings where needed, and resubmit. We track every open comment until the city closes it. If a plan checker flags a structural element or requests a special inspection, we coordinate with the engineer of record and document the resolution. You receive a copy of every submission and every correction letter as part of your project photo and document record.
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Permit Issuance and Pre-Construction Handoff
When the city issues the approved permit, we review the stamped drawings to confirm they match the agreed scope, then package the permitted set for construction. Under our one-contract model, that set goes directly to the build phase without a handoff meeting between a separate designer and a separate contractor. The 365-Day Done Right Promise activates at this point: if anything built in the field departs from those permitted drawings, we correct it in writing before the project closes.
Permit Application Pricing in Anaheim
Permit application fees in Anaheim have two distinct components: the city’s fees paid to the Building Division, and Ellery ADU Studio’s fee for preparing and managing the application.
City of Anaheim Permit Fees
These are paid directly to the city and are outside our fee. They vary by project type and valuation:
- Junior ADU (JADU) or interior conversion: City fees generally fall in the $1,200-$2,800 range, depending on scope and whether electrical or plumbing panels are being modified.
- Garage conversion ADU (detached or attached): City fees typically run $1,800-$3,800. Anaheim’s plan check fee for a conversion is based on the project’s declared valuation, not the square footage alone.
- New detached ADU, 400-800 sq ft: City fees generally land between $2,800-$5,500. A new structure triggers plan check, building permit, and inspection fees separately, and Anaheim levies each category on its published fee schedule.
- New detached ADU, 800-1,200 sq ft: City fees in the $4,500-$8,000 range are common at this scale, particularly if a Title 24 energy report triggers upgraded mechanical specifications.
State law (AB 2221 and SB 897, effective January 2023) caps certain ADU impact fees, but Anaheim still charges plan check, inspection, and connection fees that are not capped. We document the anticipated city fees in your written project quote before any work begins, per Haven Standard Clause 1.
Ellery ADU Studio’s Permit Application Fee
Because permit application at Ellery is part of a single design-build contract, we do not quote it as a standalone line item separate from design and construction. What we do quote, in writing, before any work starts, is a single all-in project price that covers drawings through final inspection – so you are never in a position where the design phase ends and a separate contractor hands you a surprise construction number. For a detached ADU in Anaheim running 500-800 square feet, all-in project costs (Ellery’s fee plus city fees, excluding land and landscaping) have typically ranged from $185,000 to $320,000 depending on site conditions, finishes, and whether a prefab system like Abodu is being coordinated. That range is wide because site conditions in Anaheim vary significantly – a flat lot in the Platinum Triangle area is a different project than a sloped parcel in the hills near Anaheim Hills. Your written quote will give you a number, not a range.
For a Free Second Opinion on a written estimate you already have, or to start the quote process for your Anaheim property, call (657) 366-5740. No written price, no work starts – that is Haven Standard Clause 1, applied to every project, without exception.
FAQs – Permit Application in Anaheim

How long does the permit application process take in Anaheim?
A complete, correct ADU Design & Permitting application in Anaheim typically takes 6 to 14 weeks from submission to permit issuance, depending on project type and current plan check volume. State law requires Anaheim to act on a complete ADU application within 60 days. The word “complete” carries significant weight: an incomplete submittal resets the clock and adds weeks. Projects that arrive at the Building Division with every required document – structural calculations, Title 24 report, site utility plan, and signed application forms – tend to move through first review in 4 to 6 weeks. If corrections come back, a well-prepared response typically closes in one additional round. Projects that submit incomplete packages can cycle through corrections for 6 months or more. Call (657) 366-5740 to get a written timeline estimate for your specific project.
What documents does Anaheim require in a permit application for an ADU?
Anaheim’s ADU permit application requires, at minimum: a complete site plan showing property lines, existing structures, proposed ADU footprint, and setback dimensions; architectural drawings including floor plans, elevations, and sections; structural drawings with engineer-of-record stamp and calculations; a California Title 24 Part 6 energy compliance report; completed permit application forms with declared project valuation; and, for prefab or modular units, the manufacturer’s third-party inspection documentation. Projects involving new utility connections add a separate set of civil and MEP drawings. Garage conversions require documentation of the existing slab thickness, foundation condition, and framing, because Anaheim’s plan checkers will ask for it – and if it isn’t in the initial set, it becomes a correction-letter item. Call (657) 366-5740 if you want us to review what you currently have against this checklist.
Can Ellery handle the permit application if I already have architectural drawings from another designer?
In most cases, no – and the reason is practical, not proprietary. Our one-contract model works because the same team that draws the permit set builds to it. If we inherit drawings from another designer, we have no control over whether those drawings reflect actual site conditions, whether the structural calculations are defensible, or whether the energy report matches the specified materials. Taking responsibility for a permit set we did not produce puts the 365-Day Done Right Promise in an impossible position. What we can do is offer a Free Second Opinion on the existing drawings, give you a written assessment of their completeness, and quote you a new all-in project if it makes sense to start fresh. Call (657) 366-5740 and bring whatever documentation you have – we’ll tell you plainly what it’s worth and what it would cost to move forward.
Does Anaheim charge impact fees on ADUs?
Anaheim charges impact fees on new detached ADUs above 750 square feet, but state law (effective January 1, 2020, and strengthened by AB 2221 in 2023) prohibits impact fees on ADUs at or below 750 square feet. Junior ADUs and accessory units that meet the under-750-square-foot threshold are exempt from impact fees, though they are still subject to plan check, inspection, and utility connection fees. For a new detached ADU above that threshold, Anaheim’s transportation, park, and school impact fees can add $8,000 to $22,000 to the city-fee total, depending on project size and the applicable fee schedule at the time of permit issuance – fee schedules update annually. We calculate the expected impact fee exposure for your project and include it in your written quote so it is not a surprise at permit issuance. Call (657) 366-5740 for a fee estimate specific to your parcel and proposed square footage.
Key Takeaways
- Anaheim’s Building Division requires a complete permit set – architectural, structural, and energy documents – before the 60-day review clock starts. An incomplete submittal resets that clock.
- City permit fees for a new detached ADU in Anaheim typically run $2,800-$8,000 depending on size and valuation, separate from Ellery’s design-build fee.
- ADUs at or below 750 square feet are exempt from Anaheim impact fees under state law; larger units are not.
- Ellery ADU Studio’s permit application work is part of a single all-in contract, not a separate engagement – the same team that draws the set builds to it, under the 365-Day Done Right Promise.
- Every project starts with a written price before any work begins, per Haven Standard Clause 1. That applies to the permit application phase the same as it applies to construction.
- For prefab coordination – including units from Plant Prefab or Abodu – Anaheim plan checkers require manufacturer documentation formatted within the permit set. We handle that as part of the contract.
- A Free Second Opinion is available on any written estimate or permit set already in hand.
To get a written quote for your Anaheim ADU permit application, or to talk through where your current project stands, call Ellery ADU Studio at (657) 366-5740. A live person answers. No voicemail, no callback queue. If you want the broader context for how permit application fits into the full design-build process, the home page has a plain-language overview of how the single-contract model works from first drawing to final inspection.
Written by Nadia Ellery, Owner at Ellery ADU Studio Anaheim, serving Anaheim.