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Vacaville · Zoning · RE-20

Vacaville RE-20 zoning: height, setbacks and lot size

In Vacaville's RE-20 zone, generally the front setback is 25 ft and the minimum lot size is 20,000 sq ft, with the conditions listed below (Vacaville code, read October 2026).

Key points

  • Minimum front setback: 25 ft (Building)
  • Minimum side setback: 10 ft
  • Minimum rear setback: 20 ft (Building)
  • Minimum lot size: 20,000 sq ft
  • Maximum lot coverage: 35% (One-story building)
  • Maximum density: 3.0 units per acre

RE-20 is a zoning district in Vacaville. Every value below was read from the Vacaville Municipal Code and links to its section (read October 2026). State laws such as the ADU and SB 9 rules can allow more on a residential lot. General information, not legal advice — read the code text and check with the city before you build.

Development standards in RE-20

The general rule for a typical lot in this zone. Zoning tables often attach notes, such as rules for corner lots, lots next to a residential zone, or new subdivisions only. Open “code text” under a value to see the table cell or sentence it was read from.

Minimum front setback
25 ft
Applies: Building
§ 14.09.060.030 · code text
Table row “Building”, column “RE”: 25
Minimum side setback
10 ft
§ 14.09.060.030 · code text
Table row “Minimum Interior Side (ft)”, column “RE”: 10
Minimum rear setback
20 ft
Applies: Building
§ 14.09.060.030 · code text
Table row “Building”, column “RE”: 20
Minimum lot size
20,000 sq ft
§ 14.09.060.030 · code text
Table row “Minimum Lot Area (sq ft, unless noted)”, column “RE-20”: 20,000
Maximum lot coverage
35%
Applies: One-story building
§ 14.09.060.030 · code text
Table row “One-Story Building (% of lot)”, column “RE-20”: 35
Maximum density
3.0 units per acre
§ 14.09.060.030 · code text
Table row “Maximum Density (units per acre)”, column “RE”: 3.0

When a different number applies

The code sets other values for particular lots, buildings or locations in RE-20:

Not on this page

We did not find a general height, stories, FAR limit for RE-20 in the zoning tables we read. The code may still set one elsewhere — check the Vacaville Municipal Code.

Other Vacaville zoning districts

Who this affects

HomeownersArchitects and designersDevelopersReal estate agents

Frequently asked questions

What is the minimum front setback in Vacaville's RE-20 zone?

25 ft (building) — Vacaville Municipal Code § 14.09.060.030.

What is the minimum side setback in Vacaville's RE-20 zone?

10 ft — Vacaville Municipal Code § 14.09.060.030.

What is the minimum rear setback in Vacaville's RE-20 zone?

20 ft (building) — Vacaville Municipal Code § 14.09.060.030.

What is the minimum lot size in Vacaville's RE-20 zone?

20,000 sq ft — Vacaville Municipal Code § 14.09.060.030.

What is the maximum lot coverage in Vacaville's RE-20 zone?

35% (one-story building) — Vacaville Municipal Code § 14.09.060.030.

General information, not legal advice.

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