Chardonnay Hills, Temecula, CA
Adding an ADU in Chardonnay Hills
About 600 homes between 1,700 and 3,500 square feet on lots that mostly run a quarter to a half acre — in Temecula terms that is a lot of back yard.
The build era spans 1985 to 2005, so the older phases have the deepest lots. A quarter-acre lot with a 4-foot side and rear setback leaves genuine room for a detached unit.
- Free
- No account
- No phone number
- Your result first
Aerial: USGS/USDA NAIP
The basics
Chardonnay Hills at a glance
- Built
- 1985–2005
- Homeowners association
- Yes, roughly $120/month, not gated
- Lots
- Mostly a quarter to a half acre
- ZIP
- 92591
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 Chardonnay Hills lots the same size answer differently
Both of these are 7,200 sq ft with the same 40 × 46 ft house, under Temecula's rules. The only difference is the shape, and it changes the answer.
60 ft wide, 120 ft deep
FitsStudio
- Buildable after setbacks
- 2,858 sq ft
- Plans that fit
- 3 of 10
90 ft wide, 80 ft deep
UnlikelyStudio
- Buildable after setbacks
- 2,938 sq ft
- Plans that fit
- 0 of 10
Two made-up lots, but not made-up numbers: the green area, the fit verdicts and the plan counts are computed with Temecula's own 4 ft setback and 6 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.
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 30 by 17 ft of clear space — and staying under 750 sq ft waives impact fees entirely.
Your HOA
The Chardonnay Hills association cannot say no
- It cannot prohibit an ADU. Gov. Code §66315 voids covenants that prohibit or unreasonably restrict one on a single-family lot.
- It can apply architectural standards. Expect an architectural committee submission.
- Submit to both at once. Association review and city plan check are independent. Running them in sequence adds a month for no reason.
Nearby
Other Temecula neighborhoods
See what fits on your Chardonnay Hills lot
Free. You see the result before we ask for anything.