Name: GSA Owned & Leased Properties
Creator: GSA Inventory of Owned and Leased Properties

API access

Your AI client reaches GSA Owned & Leased Properties through one ParcelOps MCP endpoint, so there is no separate key to hold for it and no per-source client to write. Reaching it takes no credentials of your own.

Set up GSA Owned & Leased Properties in Claude, ChatGPT, or Cursor Get every fact on this page as JSON

Where it came from

PublisherGSA Inventory of Owned and Leased Properties

Sourcehttps://services1.arcgis.com/eBupDfPlEJK3mdAm/arcgis/rest/services/IOLP_NEW/FeatureServer

API basehttps://services1.arcgis.com/eBupDfPlEJK3mdAm/arcgis/rest/services/IOLP_NEW/FeatureServer

Docshttps://www.gsa.gov/tools-overview/buildings-and-real-estate-tools/inventory-of-gsa-owned-and-leased-properties

Freshness and coverage

FreshnessScheduled · every week · The official Data.gov catalog describes the inventory as weekly.

Places coveredGSA-controlled owned and leased property inventory

Time coveredNot declared

CredentialsNo credentials required

What this source cannot tell you

⚠ Anything outside GSA-controlled owned and leased property inventory. A request past that edge comes back empty rather than approximated.
⚠ Which years it spans, because the covered period is not declared.
⚠ Anything GSA Inventory of Owned and Leased Properties does not publish. ParcelOps returns this source as it stands and never fills a blank field from a different one.
⚠ IOLP is not a complete commercial-property market, title record, appraisal, or statement that a building is offered for sale or lease.
⚠ Coordinates, square footage, vacancy, status, and dates require verification before site or transaction decisions.
⚠ ParcelOps excludes contact emails, political fields, and walk/transit fields.

Methods (3)

A method is one call your agent can make against this source.

searchBuildings

read

Search buildings with a bounded location selector and optional owned or leased filter.

FreshnessScheduled · every week (source-level)

Input schema

{
  "type": "object",
  "properties": {
    "state": {
      "type": "string",
      "pattern": "^[A-Za-z]{2}$"
    },
    "city": {
      "type": "string",
      "minLength": 1,
      "maxLength": 100
    },
    "zipCode": {
      "type": "string",
      "pattern": "^\\d{5}$"
    },
    "locationCode": {
      "type": "string",
      "minLength": 1,
      "maxLength": 20
    },
    "assetType": {
      "type": "string",
      "minLength": 1,
      "maxLength": 100
    },
    "minRentableSquareFeet": {
      "type": "number",
      "minimum": 0,
      "maximum": 100000000
    },
    "minVacantSquareFeet": {
      "type": "number",
      "minimum": 0,
      "maximum": 100000000
    },
    "bbox": {
      "type": "object",
      "description": "WGS84 box no wider or taller than five degrees.",
      "properties": {
        "minLongitude": {
          "type": "number",
          "minimum": -180,
          "maximum": 180
        },
        "minLatitude": {
          "type": "number",
          "minimum": -90,
          "maximum": 90
        },
        "maxLongitude": {
          "type": "number",
          "minimum": -180,
          "maximum": 180
        },
        "maxLatitude": {
          "type": "number",
          "minimum": -90,
          "maximum": 90
        }
      },
      "required": [
        "minLongitude",
        "minLatitude",
        "maxLongitude",
        "maxLatitude"
      ],
      "additionalProperties": false
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 100
    },
    "offset": {
      "type": "integer",
      "minimum": 0,
      "maximum": 16000
    },
    "ownership": {
      "type": "string",
      "enum": [
        "owned",
        "leased",
        "all"
      ]
    }
  },
  "required": [],
  "additionalProperties": false
}

searchLeases