Source
County assessor records via state OPRA (or equivalent) · vintage 2024 · refresh cadence: monthly
Median living_sqft from parcel_details. National coverage in NY/FL/MA/MD/CT (62-86%). Falls back to active_listings.sqft.
Direction of better
Higher values are better. Used to rank candidate towns/properties; higher score = stronger fit.
Default weight in Livability composite
5% of the Livability composite by default. Users can override this weight in their intake; the displayed score reflects the user's chosen weighting, never a fixed default.
Where the data lives
Tables: parcel_details, active_listings
Columns: living_sqft, sqft
Input field: median_living_sqft
JSON-LD example
Every value emitted by ValiFit (in /api/v1, MCP responses, on-page JSON-LD) carries a propertyID set to this metric_id, so AI clients can resolve it back here in one round-trip.
{
"@type": "PropertyValue",
"propertyID": "livability.median_living_sqft_parcel_derived",
"name": "Median Living Sqft (parcel-derived)",
"value": "example",
"additionalProperty": [
{
"@type": "PropertyValue",
"name": "composite",
"value": "Livability"
},
{
"@type": "PropertyValue",
"name": "level",
"value": "city"
},
{
"@type": "PropertyValue",
"name": "direction",
"value": "higher_better"
},
{
"@type": "PropertyValue",
"name": "source_year",
"value": "2024"
},
{
"@type": "PropertyValue",
"name": "fha_safe",
"value": true
}
],
"valueReference": {
"@type": "QuantitativeValue",
"additionalType": "https://valifit.com/catalog/metric",
"identifier": "livability.median_living_sqft_parcel_derived",
"sameAs": "County assessor records via state OPRA (or equivalent)"
},
"mentions": [
{
"@type": "Dataset",
"@id": "https://valifit.com/sources/county-assessor",
"identifier": "COUNTY_ASSESSOR",
"name": "County Assessor + Recorder Data",
"url": "https://en.wikipedia.org/wiki/Property_tax_in_the_United_States",
"sameAs": "https://en.wikipedia.org/wiki/Property_tax_in_the_United_States",
"creator": {
"@type": "Organization",
"name": "County tax assessors (3,144 US counties)"
},
"temporalCoverage": "continuous",
"dateModified": "2026-05-11"
}
]
}For programmatic access
GET /api/v1/catalog/metrics?id=livability.median_living_sqft_parcel_derived
MCP tool: get_catalog with id="livability.median_living_sqft_parcel_derived"