Blacksburg Zoning Overview

Blacksburg is a town in Montgomery County, Virginia, with approximately 45,000 residents. Home to Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg is a vibrant university community in the New River Valley. The Town of Blacksburg manages land use and development through its own zoning ordinance, which is separate from Montgomery County's unincorporated area regulations.

The town follows the Virginia Uniform Statewide Building Code (USBC), based on the International Building Code (IBC) and International Residential Code (IRC). Blacksburg's zoning is shaped significantly by its university character — the high student population creates demand for dense residential housing, and the town's zoning code balances this demand with the interests of established residential neighborhoods. Virginia Tech's campus itself operates under its own institutional planning framework.

Primary Zoning Districts

Blacksburg's zoning code includes several residential districts. The R-1 (Single-Family Low Density) district requires a minimum lot size of 12,000 square feet with setbacks of 30 feet (front), 10 feet (side), and 30 feet (rear). The R-2 district allows 7,500 square foot minimum lots for medium-density single-family development. The R-3 (Multifamily Residential) district accommodates higher-density apartment and multifamily development, most commonly found in areas adjacent to or near the Virginia Tech campus.

Commercial uses are concentrated in the B-1 (Neighborhood Business) and B-2 (General Business) districts. The I-1 (Light Industrial) district accommodates research and technology uses consistent with Blacksburg's role as a university research community.

ADU (Accessory Dwelling Unit) Rules

Virginia has no enacted statewide ADU preemption. SB 304 of 2024 would have required ADUs by-right but was deferred to the Virginia Housing Commission. Va. Code § 15.2-2292.1 governs only temporary family health-care structures, not general ADUs. ADU rules are set by local zoning ordinance — contact the local planning department.

Development Process

Development in Blacksburg generally requires obtaining appropriate permits from the town's planning and building departments. The process typically involves:

1. Zoning Verification — Confirm that your proposed use is permitted in the applicable zoning district
2. Site Plan Review — For commercial and multi-family projects, submit a site plan for review
3. Building Permit — Apply for a building permit with construction documents
4. Inspections — Schedule required inspections during construction
5. Certificate of Occupancy — Obtain final approval before occupying the structure

Key Considerations

Before starting any development project in Blacksburg, property owners should:

• Verify the zoning classification of their property
• Review setback, height, and lot coverage requirements for their specific district
• Be aware of any occupancy and rental licensing rules that apply to residential properties
• Determine if the property is in a FEMA flood zone using FEMA's flood map service
• Confirm whether HOA covenants or deed restrictions apply
• Contact Planning at (540) 443-1300 for pre-application guidance

Disclaimer: This guide provides general information about zoning in Blacksburg and should not be relied upon as legal advice. Zoning codes are subject to change. Always verify current regulations with the Town of Blacksburg or the municipal code before making development decisions.