ADUs Decisions in Fairfax County

An Accessory Dwelling Unit (ADU) is a secondary housing unit located on the same parcel as a primary single-family residence. ADUs go by many names - granny flats, in-law suites, backyard cottages, garage apartments, or casitas - but they all share the common characteristic of being smaller, subordinate residential units that share a lot with the main house. ZoneWire tracks adus activity across Fairfax County, VA public meetings.

ZoneWire monitors Fairfax County, VA planning and council meetings, transcribes them, and flags adus activity. As of the latest update we have analyzed 7 meetings and detected 38 adus mentions.

Tracking adus in Fairfax County surfaces zoning and development signals early, so developers, investors, and brokers can evaluate parcels and approvals before they reach the broader market.

Land use in Fairfax County, Virginia is governed by the county's Zoning Ordinance, which is adopted by the Board of Supervisors. On March 23, 2021, the Board adopted a modernized Zoning Ordinance through the Zoning Ordinance Modernization (zMOD) project, replacing the prior 1978 Ordinance with a version that uses more tables, graphics, and hyperlinks. The Board of Supervisors later readopted the modernized Ordinance, which continues to be amended over time. Amendments proceed through public hearings before the Planning Commission and then the Board of Supervisors.

The Board of Zoning Appeals (BZA) is a quasi-judicial body that decides zoning cases in Fairfax County. It handles three main matters: appeals of administrative zoning decisions, special permits, and variances. The BZA was established under Article 7, Chapter 22, Title 15.2 of the Code of Virginia. It consists of seven members and one alternate, all Fairfax County residents, appointed by the Circuit Court to staggered five-year terms.

The Board of Zoning Appeals meets weekly on Wednesday mornings at 9:00 a.m. in the Board Auditorium at 12000 Government Center Parkway, Fairfax, except for weeks that contain a County holiday. The BZA generally recesses in August/September and again in late December/early January. Meetings air live on Channel 16, stream online, and are available on demand afterward, and residents can sign up in advance to speak in person or submit video testimony.

Both are approvals that allow certain uses in designated zoning districts subject to controls and conditions, but they are decided by different bodies. A special exception applies to uses that by their nature or design can have an undue impact on nearby land, and it is approved by the Board of Supervisors after a public hearing before the Planning Commission. A special permit is approved by the Board of Zoning Appeals, which may grant it when the use complies with applicable standards and is compatible with existing and planned development in the area.

A variance is a request to vary certain requirements of the Zoning Ordinance where, due to special conditions of the property, strict enforcement would effectively prohibit or unreasonably restrict all reasonable use of the property. Variance applications must be submitted electronically through the county's PLUS application portal and are decided by the Board of Zoning Appeals. Fairfax County's variance process takes approximately 90 days from the time an application is filed to the Board of Zoning Appeals public hearing.

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