ADU Builders in
Glendale, CA
Compare ADU builders and city-specific Glendale permit constraints
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Quick Stats
Directory
- Curated list of ADU builders serving Glendale.
- Listings are ordered by ADU relevance signals (portfolio evidence, ADU-specific services, clarity, responsiveness).
- Each card shows the clearest city or service-area proof we found for this market.
- Paid placements (when introduced) will be clearly labeled.
5 Builders
Dwell Homes
Glendale • Valley VillageLocal proof: Dwell runs a dedicated Glendale ADU contractor page.
Create Construction
Glendale • BurbankLocal proof: Create Construction has a Glendale ADU page and Glendale permit copy.
GatherADU
Glendale • Los Angeles CountyLocal proof: GatherADU publishes Glendale regulations and service pages.
Otto ADU
Glendale • Los AngelesLocal proof: Otto names Glendale as one of its complex permitting jurisdictions.
Levi Design Build
Glendale • Los Angeles CountyLocal proof: Levi lists Glendale in its ADU service-area roster.
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Glendale ADU Guide
Glendale homeowners usually have the same four core ADU paths: convert existing space, build a detached backyard unit, add an attached unit, or create a JADU inside the main house. The best path depends on your lot, utilities, budget, and how quickly you want to get through permitting.
Garage conversion ADU
Detached backyard ADU
Attached ADU
JADU (inside main home)
ADU Rules
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Start with these homeowner checkpoints, then verify the final answer with Glendale Planning, Building, and Glendale Water & Power.
| Topic | Glendale baseline |
|---|---|
| How many units can I add? | On a typical single-family lot, the usual starting point is 1 ADU and 1 JADU when the site qualifies. |
| Max size | Glendale states the maximum ADU size on a single-family property is 1,000 sqft, subject to the ability to meet development standards. |
| Attached ADUs over 800 sqft | Glendale states an attached ADU above 800 sqft cannot exceed 50% of the primary dwelling floor area. |
| JADU size | JADUs are capped at 500 sqft and must stay within existing legally permitted space in the main house. |
| Setbacks | A 4-foot side and rear setback is the usual first-pass assumption for detached ADU work, but site conditions and fire-separation rules can still change the answer. |
| Parking | Garage conversions and transit-adjacent projects commonly benefit from state-law parking exemptions, but you should confirm the exact site condition with planning staff. |
| Historic properties | Glendale notes that exterior changes for ADUs on historic properties should not be visible from the public street and must not alter defining historic features unless the change is necessary to allow the ADU. |
| Utilities / easements | Glendale specifically tells applicants to check with Glendale Water & Power so the ADU location does not conflict with utility easements. |
| Permit fee estimates | The city directs applicants to contact the Building Division for current permit fee estimates rather than assuming old fee schedules still apply. |
Cost Breakdown
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Glendale budgets look similar to nearby northeast LA and San Fernando Valley projects, with detached builds and major utility work pushing the total quickly.
| Project type | Typical all-in cost range (Glendale) |
|---|---|
| Garage conversion ADU | $105K – $225K |
| JADU (inside main home) | $80K – $150K |
| Attached ADU | $185K – $330K |
| Detached ADU (new build) | $225K – $410K+ |
Biggest budget movers in Glendale
- Utility easements or service conflicts flagged by GWP
- Steep lots, retaining walls, or unusual access
- Electrical upgrades and longer utility runs
- Structural reinforcement on older garages
- Fire-separation details close to lot lines
- Finish level and design complexity
Permit Process
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Typical flow
- Research the property – confirm zoning, existing structures, access, and utility constraints
- Talk to planning early – Glendale recommends consultation before you draw a full plan set
- Check GWP – make sure the ADU footprint does not run into power or utility easements
- Prepare plans – choose conversion, attached, or detached strategy
- Submit and respond to corrections – adjust drawings as comments come back
- Pull permit and build – schedule inspections through completion
Realistic timing
- Lot screening + concept: ~2–6 weeks
- Design + engineering: ~1–3 months
- Plan review + corrections: commonly ~2–5 months
- Construction: ~4–9 months
- Total: often ~6–15 months
Glendale-specific watchouts
- Historic review can reshape detached layouts
- Easement conflicts can kill a backyard footprint late if you do not screen them early
- Multifamily rules differ from single-family rules, so use the right city pathway from the start
Rental Income
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Glendale ADUs usually perform best as long-term rentals for local workers, family, or small households that want access to Glendale, Burbank, and northeast LA without paying single-family home pricing.
What can an ADU rent for in Glendale?
| Unit type | Broad monthly range |
|---|---|
| Studio / small JADU | $1,950 – $2,450 |
| 1 BR ADU | $2,300 – $3,000 |
| 2 BR ADU | $2,900 – $3,700+ |
Rental strategy notes
- Detached units usually command a premium when privacy and parking are strong
- Converted garages can still work well if the design feels intentional
- Underwriting should assume long-term occupancy, not nightly rental arbitrage
FAQs
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How big can a Glendale ADU be?
Glendale says the maximum ADU size on a single-family lot is 1,000 sqft, assuming the project can still meet the applicable development standards.
What about a JADU?
A JADU is limited to 500 sqft and must stay within existing legally permitted space in the main home.
Do attached ADUs have an extra size rule?
Yes. Glendale states that if an attached ADU exceeds 800 sqft, it may not be more than 50% of the primary dwelling floor area.
Is Glendale strict about historic properties?
It can be. The city says exterior ADU changes on historic properties should not be visible from the public street and should avoid changing defining historic features unless required to enable the project.
Should I check utilities before I design the backyard unit?
Yes. Glendale specifically tells owners to coordinate with Glendale Water & Power so the ADU location does not conflict with easements.
How much does a Glendale ADU usually cost?
Many Glendale homeowners underwrite roughly $105,000 to $225,000 for conversions and $225,000 to $410,000 or more for detached builds, depending on utility, structural, and finish complexity.
Can I still do a garage conversion in Glendale?
Yes. Garage and accessory-structure conversions remain one of the simpler ADU paths when the existing space is legal and structurally workable.