Same zip, different jurisdiction: this page covers LA County Public Works (DPW). The same zip code(s) also cover parts of Arcadia (Arcadia (its own permits)). Verify your parcel's jurisdiction before filing — different agencies, different rules.
San Gabriel Valley · LA County (Unincorporated)
ADU permits in Mayflower Village
Zip codes:9100691007
Mayflower Village is a small unincorporated community of about 6,000 people in the central SGV, between Arcadia and Monrovia. It is not a city. Building permits run through Los Angeles County Public Works (Building & Safety).
Unincorporated LA County, not LADBS
Mayflower Village is unincorporated territory. Building permits go through LA County Public Works (Building & Safety) ↗ under LA County Code Title 22, not the Los Angeles Department of Building and Safety (LADBS). Our address checker pulls real feasibility data for any LA County address; the Mayflower Village-specific permit pathway is detailed below.
Mayflower Village by the numbers
Rounded figures from the 2020 US Census, LA County Assessor parcel data, and LA County DPW permit records.
Population
6,000
2020 Census
Single-family homes
~1,700
LA County Assessor
Median lot size
6,500 sqft
Approximate
ADU permits filed 2025
~19
Source: HCD 2025 total (1,278) distributed proportionally across 2024 per-area shares. 2024: 22.
What makes Mayflower Village different
Mayflower Village is functionally distinct from Arcadia + Monrovia despite tight adjacency. Permits run through LA County DPW Building & Safety at the Alhambra office via EPIC-LA.
LA County ADU rules for Mayflower Village
Last verified: 2026-04-15
Current LA County rules from Title 22 of the County Code, as applied to Mayflower Village. State preemption (Gov Code §65852.2) means the county can't reduce below the state baseline. We note where that applies.
| Max detached ADU size | 1,200 sqft (state default) |
| Max ADU height | 16 ft / 18 ft with second-story setbacks |
| Setbacks | 4 ft side / 4 ft rear (state minimum) |
| Permitting agency | LA County Public Works (Building & Safety), Alhambra office |
| Local processing time | 60 days from complete submittal (state-mandated) |
Active overlays + extra rules in Mayflower Village
LA County overlays + state-level designations that hit a meaningful share of Mayflower Village parcels.
Watch-outs specific to Mayflower Village
- 01
Don't file with Arcadia or Monrovia — it's LA County
Mayflower Village residents frequently default to Arcadia or Monrovia city for permits, then restart with LA County.
Need a person, not a wizard?
Routes that fit Mayflower Village
Based on what we know about Mayflower Village, these are the lead types that usually make sense here. Pick whichever fits your situation. All free, no obligation.
Talk to our financing broker
Want someone to walk you through your options?
Our in-house broker has 30+ years in LA mortgage and ADU financing. He'll lay out HELOC, construction-to-perm, and ADU-specific products like Renofi against your situation — free, no obligation.
Talk to our financing broker
Want someone to walk you through your options?
Our in-house broker has 30+ years in LA mortgage and ADU financing. He'll lay out HELOC, construction-to-perm, and ADU-specific products like Renofi against your situation — free, no obligation.
Amenities + civic services in Mayflower Village
Parks, libraries, and the school district that serve the area. Context that matters for renter appeal, family relocation, and long-term resale.
Public schools
School assignments vary by exact address. Performance levels below are from the official California School Dashboard — California's official accountability system uses colored levels (blue highest, red lowest) rather than 1-10 numeric scores.
District
Mixed (Arcadia USD + Monrovia USD depending on parcel)
Getting around Mayflower Village
Walkable + Metro A Line nearby.
Transit + walkability
Bus lines
- Foothill Transit 187
- Foothill Transit 188
Nearest rail
Metro A Line (Gold) — Arcadia Station (about 1 mi south)
Walkability
Moderately walkable along Foothill Boulevard.
Nearby airports
Distance + type for each major Los Angeles-area airport reachable from Mayflower Village. Useful for travel, commute, and any flight-path noise concerns on specific parcels.
Hollywood Burbank Airport (BUR)
~14 miRegional / domestic
Nearby areas to Mayflower Village
Other Los Angeles-area pages worth a look. Each one runs different Accessory Dwelling Unit (ADU) rules depending on jurisdiction — we show you what changes when you cross a city or county line.
LA County unincorporated
East Pasadena →
Premium small unincorporated community east of Pasadena. LA County (not Pasadena city) jurisdiction + premium Pasadena-adjacent home values shape Accessory Dwelling Unit (ADU) economics.
LA County unincorporated
East San Gabriel →
Central-SGV unincorporated community surrounded by 4 cities (San Gabriel, Pasadena, San Marino, Temple City). LA County jurisdiction + strong Asian-American cultural anchor + premium home values shape the Accessory Dwelling Unit (ADU) calculus.
LA County unincorporated
Altadena →
Altadena's large historic lots and Los Angeles County jurisdiction (LADBS rules don't apply here) make Accessory Dwelling Unit (ADU) economics attractive, but the active rebuild context, Very High Fire Hazard Severity Zone (VHFHSZ) rules, and county-not-city permitting all add complexity worth understanding upfront.
Frequently asked questions about Mayflower Village ADUs
›Can I build an ADU in Mayflower Village?
Yes. Mayflower Village allows ADUs under LA County Code Title 22, aligned with California Gov Code §65852.2. Most single-family lots can host one ADU plus one JADU. Permits go through LA County Public Works (Building & Safety), not LADBS, since Mayflower Village is unincorporated territory rather than a city.
›Why does Mayflower Village use LA County rules instead of LA City rules?
Mayflower Village is unincorporated. It's never been formally incorporated as its own city, so LA County serves as the local government. Building permits, zoning, sheriff, libraries (in many cases), and most other services run through county departments rather than city ones.
›Where do I submit my Mayflower Village ADU permit?
Online via LA County's EPIC-LA portal, or in-person at the LA County Public Works Building & Safety counter in Alhambra (900 S. Fremont Avenue). The EPIC-LA online portal handles most ADU submittals end-to-end, so you rarely need to visit in person.
›How long does the ADU permit process take in Mayflower Village?
LA County DPW targets the state-required 60-day plan check for ADUs from a complete submittal. Hillside, VHFHSZ, or environmental-review parcels can extend timelines by 4 to 12 weeks. Mayflower Village-specific overlays may add additional time. See the watch-outs above.
›Are LA County's pre-approved ADU plans free?
Yes. LA County maintains three pre-approved standard ADU plans (Plans A, B, and C) usable in any unincorporated area, including Mayflower Village. They're free to use, similar to LADBS's YOU-ADU program. The trade-off is reduced design flexibility, but for a fast, low-cost permit path they're the strongest option.
Ready to see what your Mayflower Village lot can do?
Our free address checker pulls real zoning, overlay, and parcel data for any Los Angeles County address, including unincorporated Mayflower Village. Start there and we'll surface what applies to your specific lot.
Check your address →Reviewed by Yair Harpaz, Founder, PermitPathLA. California DRE-licensed broker with 30+ years of Los Angeles real estate and mortgage industry experience.
Mayflower Village ordinance data last reviewed .
See an error or stale rule? corrections@permitpath.la
Primary sources: LA County DPW ADU info · LA County Code Title 22