# Fairfax County, VA property data

> Fairfax County, VA parcel data: 369,014 parcels with building permits, zoning, historic designations, via API, MCP server and vector tiles.

Source: https://www.parceled.ai/coverage/virginia/fairfax-county  
Publisher: Parceled (https://www.parceled.ai)  
Updated: 2026-10-30

Parceled covers 369,014 parcels in Fairfax County, VA, with building permits, zoning, historic designations and hail history available through one API and MCP server.

- **Parcels:** 369,014
- **County FIPS:** 51059
- **Snapshot:** October 30, 2026

## What property data is available for Fairfax County?

| Dataset | Fairfax County |
| --- | --- |
| Parcel boundaries | 369,014 parcels |
| Tax assessor records | Not yet |
| Owner name and mailing address | Not yet |
| Market or assessed value | Not yet |
| Year built | Not yet |
| Last sale date | Not yet |
| Building permits | 137,752 permits since 2008, latest October 24, 2026 |
| Roofing permits | 893 |
| Zoning | 3 zoning jurisdictions |
| Buildable-area screens | Yes |
| Historic designations | 61 |
| Adopted building codes | Not yet |
| Hail history (radar) | Yes, every county in the contiguous US |

## How do I query Fairfax County property data?

Bulk-search every parcel in the county with `search_properties` using `state: "VA"` and `county: "059"` (the county FIPS code 51059), or look up one address with `search_parcels`. Check any single property for free with `check_availability`.

```json
{
  "name": "count_properties",
  "arguments": { "state": "VA", "county": "059" }
}
```

## Frequently asked questions

### How do I find who owns a property in Fairfax County?

Search the address on the Fairfax County assessor's website, or query Parceled's `search_parcels` for owner name and mailing address. See [how to find a property owner by address](https://www.parceled.ai/guides/how-to-find-property-owner-by-address).