Check my lot

Mead Valley, Perris, CA

Adding an ADU in Mead Valley

Mead Valley is unincorporated Riverside County, not the City of Perris, which means county permitting rather than city — a distinction that changes your submittal, your fees and your review path.

The stick-built homes here sit on large rural parcels with housing stock reaching back to 1940, which is a strong detached-ADU profile.

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  • No phone number
  • Your result first

Aerial: USGS/USDA NAIP

Before you spend

What to know before you spend anything

Mead Valley is not inside the city limits. It is unincorporated Riverside County, despite the Perris mailing address. Your permit goes through the county, under county standards, on county timelines — and county review here typically runs longer than the city's. Anyone quoting you Perris process for a Mead Valley parcel has not looked at your address.
Roughly 59% of housing in Mead Valley is manufactured homes. If yours is one, the ADU path is different and we will tell you that before you spend anything.
Septic is the norm. Budget for a capacity review.

The basics

Mead Valley at a glance

Built
1940–1999
Homeowners association
None
Lots
Large rural parcels
ZIP
92570
Permitting authority
Riverside County (unincorporated)

We publish only what we verified. Lot dimensions vary enough inside a single tract that a neighborhood average would mislead you, so the tool reads your own parcel instead.

Why two Mead Valley lots the same size answer differently

Both of these are 7,200 sq ft with the same 40 × 46 ft house, under Perris's rules. The only difference is the shape, and it changes the answer.

60 ft wide, 120 ft deep

FitsStudio

Buildable after setbacks
2,423 sq ft
Plans that fit
1 of 5

90 ft wide, 80 ft deep

UnlikelyStudio

Buildable after setbacks
2,049 sq ft
Plans that fit
0 of 5

Two made-up lots, but not made-up numbers: the green area, the fit verdicts and the plan counts are computed with Perris's own 4 ft setback and 10 ft separation by the same functions the lot tool runs on a real parcel. Your lot is not either of these, which is the point — we read yours.

Measure my actual lot

Honest limits

What the geometry check can and cannot tell you

Why three answers, not yes or no

  • Public parcel lines sit 3 to 25 ft from the surveyed boundary.
  • The setback being measured is only 4 ft.
  • When the error bar is wider than the measurement, "yes" is a guess. So: Fits Tight Unlikely

What public data cannot see

  • Easements through the rear yard
  • Slope
  • Sewer or septic capacity
  • Electrical panel capacity
  • Soil conditions

Any one of these can stop a project that passes the geometry check.

On a tight lot, studio needs about 20 by 20 ft of clear space — and staying under 750 sq ft waives impact fees entirely.

Nearby

Other Perris neighborhoods

All Perris ADU rules and plans

See what fits on your Mead Valley lot

Free. You see the result before we ask for anything.