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ADU Rules in Vestavia Hills, Alabama

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ADU Rules in Vestavia Hills, Alabama

Vestavia Hills is a prestigious residential suburb in the mountains south of Birmingham. The city maintains conservative zoning standards to preserve its single-family residential character. ADUs are subject to strict standards, and many neighborhoods have additional deed restrictions.

Permitted ADU Types

  • Attached ADU: Generally more accepted than detached; addition to primary home with separate entrance
  • Detached ADU: May require conditional use approval in single-family zones
  • Garage Conversion: Converting existing garage space to a dwelling unit (subject to HOA)

Size Limits

ADU Type Maximum Size
Detached ADU 700–800 sq ft or 35% of primary dwelling
Attached ADU 35% of primary dwelling floor area
Garage Conversion Existing footprint

Setbacks

  • Front: Must meet base zone standard (typically 30–40 ft)
  • Side: 7.5 feet minimum
  • Rear: 15 feet minimum
  • Separation from primary: 15 feet minimum for detached units

Height

  • Detached ADU: Maximum 15 feet
  • Must not exceed height of primary dwelling

Conditional Use Requirements

In many Vestavia Hills residential zones, a detached accessory dwelling unit requires approval from the Board of Zoning Adjustment or Planning Commission. A public hearing may be required.

Owner Occupancy

The property owner must occupy the primary dwelling as their principal residence. ADU rentals are permitted only when the owner is on-site.

Parking

Two additional off-street parking spaces may be required for an ADU.

Permit Process

  1. Pre-application consultation: Strongly recommended — contact Planning & Inspections
  2. Determine if CUP is required: Many zones require conditional use approval
  3. Board hearing: If required, submit application and attend public hearing
  4. Submit building plans: After approval, submit architectural drawings
  5. Building permit: Issued by Planning & Inspections
  6. Inspections: All required phases must pass
  7. Certificate of Occupancy: Required before occupancy

Contact

Vestavia Hills Planning & Inspections Department 1032 Montgomery Hwy, Vestavia Hills, AL 35216 Phone: (205) 978-0100 Website: vestaviahills.org/planning-inspections

Disclaimer: Vestavia Hills has conservative zoning regulations. Verify current requirements with the Planning & Inspections Department before starting any project.

More about Vestavia Hills Zoning

Sources

  1. Vestavia Hills Zoning Ordinance — Accessory Structures·library.municode.com·Accessed 2026-04-07·Direct link
  2. City of Vestavia Hills Planning & Inspections·vestaviahills.org·Accessed 2026-04-07·Direct link

FAQ

What is the maximum ADU size in Vestavia Hills?
Where permitted, ADUs in Vestavia Hills are typically limited to 700–800 square feet or 35% of the primary dwelling's floor area, whichever is less.
Does Vestavia Hills require owner occupancy for ADUs?
Yes. Owner occupancy of the primary dwelling is required when an accessory dwelling unit is present on the property.