Fast, Reliable ADU Design & Permitting Across Van Nuys
ADU design and permitting in Van Nuys typically runs $8,500-$18,000 for the full architectural and permit package, with most garage conversions permitted in 90-120 days and new detached ADUs in 120-180 days. Van Nuys sits inside the City of Los Angeles’s permissive ADU ordinance, but the real complexity lives in the details of your specific lot: alley dedication status, Metro G Line Transit Oriented Communities bonus tiers, and the 1950s tract housing stock that dominates the neighborhood.
We coordinate dispatch and scheduling from our Los Angeles office, and our crews serve Van Nuys locally - from the flat, alley-accessed blocks near Van Nuys Boulevard to the post-war ranch tracts off Sepulveda. We know which blocks have dedicated alleys, which don’t, and how to verify either before you commit to a design. Call (213) 329-7167 to schedule your free estimate. Every project gets a written price before any work starts, per Haven Standard Clause 1.
Why Ellery ADU Studio West Hollywood Is Van Nuys’s Preferred ADU Design & Permitting Company
We’ve designed, permitted, and built ADUs in Van Nuys since the 2017 state law changes accelerated local filings. Our ADU Design & Permitting team has walked hundreds of Van Nuys lots - the 6,000 sq ft stucco ranches with detached rear garages, the zero-lot-line tracts where party-wall notice is mandatory, and the alley-accessed blocks where a separate address is sometimes possible.
Van Nuys homeowners leave documented reviews citing our permit-set accuracy and our willingness to flag problems before design: the 100-amp panel that needs upgrading, the alley that isn’t actually dedicated, the cooling load that standard LA calculations undersize. We don’t win work by promising speed we can’t deliver. We win it by delivering permit sets that pass LADBS review without revision cycles that burn months.
Our response time to Van Nuys inquiries is same-day during business hours, and a live person answers calls 24/7 - no voicemail queue, no callback promise that doesn’t materialize. Nadia Ellery built this studio in 2015 specifically to eliminate the designer-versus-builder blame gap that derails most ADU projects. In Van Nuys, that gap is expensive: a permit set that doesn’t account for alley conditions or TOC tier eligibility can cost you six months and thousands in redraws.
Our ADU Design & Permitting Services in Van Nuys

Site Assessment
Every Van Nuys project starts with a documented site walk. We measure your existing structure, photograph conditions, and verify three things that kill permits mid-process: alley dedication status through LADOT and LASD records, electrical service capacity, and setback compliance against your specific tract’s plat. On a recent job off Hazeltine Avenue near the G Line, our crew converted a 1959 detached 2-car garage into a 480 sq ft ADU - the original 100-amp service had to be upgraded to 200-amp before our electrician could bring the subpanel out, and because that block’s rear alley is dedicated we were able to secure the tenant a separate alley-facing entrance and address. We also spec’d a dedicated 18,000 BTU mini-split (the 105-112°F Valley summers make undersized cooling a tenant complaint and a callback liability), and filed the LADOT alley verification before we pulled the conversion permit so the address change wouldn’t stall mid-review.
A site assessment in Van Nuys typically runs $450-$850, credited toward your full design contract if you proceed. You receive a documented photo record and a written findings memo - not a sales pitch dressed as technical analysis.

ADU Design & Blueprints
Our architectural team produces permit-ready drawings for LADBS submittal, including Title 24 energy compliance calculations sized for Van Nuys’s specific climate zone. We design for your actual lot conditions, not a template: zero-lot-line setbacks on 1950s tracts, alley access constraints, and the cooling load that 105-112°F summers demand. A typical garage conversion design package in Van Nuys runs $4,500-$8,500. New detached ADU designs, including full structural and MEP, range $8,500-$14,000.
We specify and coordinate prefab and modular systems from Abodu, Cover, and Dvele within the same single contract - no separate procurement process that fragments accountability.

Permit Application
We file your complete permit set with LADBS, track review comments, and revise drawings as needed. Van Nuys garage conversions typically clear in 90-120 days; new detached ADUs in 120-180 days, assuming no alley dedication disputes or HOA complications. Our permit application service is priced at $2,800-$5,500 depending on project complexity and required entitlements. We pull all permits and pass all inspections - it’s in our contract, not yours.

HOA & Zoning Compliance
Some Van Nuys tracts carry CC&Rs from original 1950s-60s development. We review governing documents before design begins, not after. If your property sits within a Metro G Line TOC bonus tier - near the Van Nuys or Sepulveda stations - we verify eligibility and file for additional density allowances that neighboring unincorporated Valley communities cannot access. This verification is included in our standard zoning analysis; no additional fee.

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.
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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 Van Nuys
We specify and coordinate prefab and modular systems from James Hardie, Abodu, and Cover within our single-contract design-build model. For Van Nuys’s heat-trap climate, we size every system against actual cooling loads, not generic LA standards. James Hardie siding performs well in Van Nuys’s thermal cycling - the extreme daily temperature swings between 105°F afternoons and 65°F nights stress lesser materials. Our relationships with these manufacturers mean lead times and warranty terms are locked at contract signing, not discovered during construction.
Common ADU Design & Permitting Problems We See in Van Nuys Homes

- Alley dedication assumed, not verified. Many Van Nuys blocks were platted with rear alleys in the 1950s, but some segments are unmaintained or privately held. We pull LADOT and LASD records before design begins - a conversion permit derailed mid-process costs months and thousands in redraws.
- Party-wall notice missed on tight tracts. Zero-lot-line or tightly platted 1950s blocks have neighboring garages or house walls inches from the ADU footprint. Setback variances and shared-wall agreements must be resolved before permit submittal, not discovered during LADBS review.
- Cooling load underestimated for the Valley heat trap. Van Nuys is significantly hotter than Westside neighborhoods sharing the same city ADU rules. Undersized mini-splits that pass code elsewhere become tenant liability here. We spec dedicated systems sized for 105-112°F peak loads.
- Access constraints ignored in quoting. Staging, alley parking, and LADOT work-hour/noise ordinances can push the construction window and materially change the quote. Our site assessment documents these constraints before you sign.
Pricing for ADU Design & Permitting in Van Nuys, CA
| Service | Typical Range in Van Nuys |
|---|---|
| Site Assessment | $450-$850 (credited toward design) |
| Garage Conversion Design & Permit Set | $4,500-$8,500 |
| New Detached ADU Design & Permit Set | $8,500-$14,000 |
| Permit Application & LADBS Coordination | $2,800-$5,500 |
| Title 24 Energy Compliance | $1,200-$2,400 (included in full packages) |
What moves you within these ranges: project complexity, alley verification requirements, electrical upgrade needs, and whether TOC bonus tier filings apply. Every project is quoted with a written price before any work begins - Haven Standard, Clause 1. The words “call for a quote” do not appear on this site because they don’t appear in our practice. Call (213) 329-7167 for your written estimate.
We Also Serve Cities Near Van Nuys

Our crews work across the San Fernando Valley, including Van Nuys and neighboring Sherman Oaks, Studio City, North Hollywood, and Tarzana. Each city carries distinct zoning, HOA density, and climate considerations - we adjust our permit sets accordingly, never recycling drawings across jurisdictions.
Serving Van Nuys, CA - Our Local Coverage Area
We’re based in the Van Nuys 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 Van Nuys

Most Van Nuys alley-facing garages share the main house address; a separate address requires verified alley dedication through LADOT and LASD, then a formal address assignment before permit final. We file this verification before pulling your conversion permit so the address change doesn’t stall mid-review. Call (213) 329-7167 to check your alley status - estimates are free.
Residential parcels within Transit Oriented Communities bonus tiers near the Van Nuys and Sepulveda stations unlock additional density allowances - potentially larger ADU footprints or reduced parking requirements - that neighboring unincorporated Valley communities cannot access. We verify your parcel’s TOC eligibility during site assessment and file for applicable bonuses in your permit set. Call (213) 329-7167 to confirm your tier status.
Quotes change when assumptions meet reality: the alley isn’t dedicated, the panel needs upgrading, or the cooling load exceeds standard calculations. Our site assessment documents these conditions before design begins, and our written price - Haven Standard, Clause 1 - locks the scope at signing. No door-side upsells, no scope creep. Call (213) 329-7167 for an assessment that produces a fixed quote.
Nearly always, no. Original electrical service on Van Nuys’s 1947-1968 housing stock is frequently 100-amp or smaller, and panel upgrades to 200-amp are nearly universal when adding an ADU. We identify this during site assessment and include the upgrade in your written scope - not as a surprise change order. Call (213) 329-7167 to evaluate your service capacity.
Van Nuys needs significantly more cooling capacity than Westside neighborhoods sharing the same city ADU rules - summer highs of 105-112°F demand properly sized dedicated mini-splits, not passive or undersized systems that might pass code elsewhere. We size every system for your specific lot’s heat gain, and we document the calculation in your permit set. Undersized cooling here becomes a tenant complaint and a callback liability. Call (213) 329-7167 to review your project’s mechanical specifications.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Van Nuys since 2015.