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Overlay district

An overlay district adds rules on top of the base zoning in a mapped area, such as design standards downtown.

Also called overlay zone.

What it tells you

A new overlay shows where a city wants a certain kind of growth, such as denser housing near transit. A request to join an overlay can unlock uses or incentives the base zoning does not allow.

How it moves through a city or county

  1. The city or county proposes the overlay, often after a plan or study.
  2. The planning commission holds a hearing and recommends.
  3. The council or county commission adopts the map and rules by ordinance.
  4. Projects inside it then meet the extra rules at site plan or design review.

Some overlays add limits; others offer incentives like extra height. In some places owners can ask to join one, much like a rezoning.

Recent overlay requests

From public filings in Colorado, New Jersey, and New Mexico.

Recent overlay requests, sample projects
ProjectLocationDeveloperTypeSizeStageLatest meeting
40-Unit Inclusionary Multifamily DevelopmentGlen Rock, NJ66 Glen Avenue L.L.C.Affordable (LIHTC) housing40 units1 acresSeeking approval
28-Unit Residential and Commercial DevelopmentGranby, COHabitat for HumanityDuplexes to fourplexes28 units2.65 acresSeeking approval
15-Acre Solar Field Overlay ZoneBelen, NMUS Solar Development LLCUtilities15 acresSeeking approval

As of How we count

Common questions

How do I know if a property is in an overlay district?
The city or county zoning map shows overlay districts, usually as a separate layer. Planning staff can confirm which overlay rules apply to a property.
Does an overlay change the base zoning?
No, an overlay sits on top of the base zoning, which still applies. Where the two conflict, the code says which rule wins, and it is often the overlay.

Rules vary by state, county, and city. These pages describe common practice, not legal advice.

See overlay requests near you.

Search Boardwalk for "overlay" with a place name.