Property assessed improvement area
Measures the adjusted gross square footage of a property as determined by the local taxing authority to assess improvement value. Adjusted gross square feet typically includes the total living area plus certain non-living spaces like garages or porches. Known or imputed for 11.7 million addresses — 9.8% of the addresses Faraday knows.
At a glance
- Coverage today
- 9.8%
- Typical coverage
- 9.9%
- Addresses with a value
- 11.7M
- Median
- 1,878 square feet
- Most values come
- from the address
- Latest collection
- Oct 1, 2026
Distribution
How values are spread across the records that have one. Use it to check that the attribute tells records apart: when one value holds nearly everyone, it will not separate audiences much. Each bar is a band of values, lowest on the left. The shading groups the bars into percentile bands.
Share by value
Share of addresses with a known value in each band. The middle 50% falls between 1,356 and 2,574 square feet, shaded darkest.
P10 means 10% of addresses have a value at or below this one, and P90 means 90% do. P25 and P75 bound the middle half. The median is the middle: half are below it, half above.
Median over time
1,890 square feet → 1,871 square feet across 12 collections, shaded between P25 and P75. Estimated from a 1% sample of addresses.
Coverage
How widely Faraday has this attribute, and how precise its values are. How many of your own records get a value also depends on how many of them Faraday matches. The state map shows where coverage is thin. Coverage over time shows whether it is growing or shrinking.
Coverage by state
Percentage of addresses in each state with a value.
Coverage over time
Share of addresses holding a value at each monthly snapshot. A value carries forward for one year.
How we arrive at a value
Whether a value was observed on the person themselves, carried from their address, or estimated from the people around them.
- On the person — 0%
- Not used for this attribute — no value is inherited this way.
- From address — 100%
- Carried from what we know about the household at their address.
- From geography — 0%
- Not used for this attribute — no value is inherited this way.
Coverage, in context
Where 9.8% sits on the catalog’s own coverage range.
Higher coverage than 25% of address-level attributes in the catalog
Freshness
Whether the values reflect today. A long gap since the latest collection means they may lag behind what is true now.
Collections
How recently this was collected, and how often a new collection arrives. Each bar is one collection, sized by how many addresses it carried. Gaps are real — collection is periodic, not continuous.
Change between collections
How much values move between collections. Income or life events should move; heavy change in something steady can mean noisy data.
of addresses changed value between the two most recent collections — 60.2× steadier than the catalog median of 16.0%.
Contribution ledger
20 ingestions1 authority contributed since Jul 2023.
| Observed | Ingested | Count | ID |
|---|---|---|---|
| 159,411,145 | eb9d843a-e90f-4c0f-a6a1-6407824973f5 | ||
| 158,647,969 | 37a05688-5576-4b35-a37f-ed31a1298842 | ||
| 158,084,496 | 62d317f2-489c-456e-b464-9cfab59f2deb | ||
| 157,944,429 | f9d55800-7304-4043-b994-dabd7f12b3a8 | ||
| 157,975,076 | 178f88a6-1494-4da4-a8fc-7b5ac45e50b8 | ||
Related attributes
Attributes whose descriptions are closest to this one.
Use it in the API
Send an email, phone, or address. Get Property assessed improvement area back in real time.
- Add
property_assessed_improvement_areato a project. - Send an email, phone, or address to the project's append endpoint. The response carries Property assessed improvement area for the matched person.
curl -X POST 'https://api.pro.faraday.ai/v1/projects/YOUR_PROJECT_ID/append' \
-H 'Authorization: Bearer YOUR_API_KEY' \
-H 'Content-Type: application/json' \
-d '{
"email": "jane.doe@example.com"
}'→ {"attributes":{"property_assessed_improvement_area":1878}}Technical details
null in any row means the label does not apply, or is not recorded, for this attribute.
- API name
- The field to request through the API, and the key it comes back under in a payload.
- property_
assessed_ improvement_ area - Category
- The catalog group the attribute is filed under.
- fig/property
- Type · unit
- The kind of value and, where it has one, its unit of measure. Counts on this page are in addresses, whatever the unit.
- Integer · square feet
- Statistical type
- How the values are meant to be read: a measured amount, one of a ranked set, one of an unordered set, or several from an unordered set. The chart's form comes from the published values; for categories without a rank prefix, this label decides whether they are listed in rank order or by size.
- ratio
- Allowed values
- The full list of values, when the attribute has a fixed set.
- null
- Derivations
- How the value is produced, each with its definition.
- Unspecified
- How values combine
- How the values from the attribute's sources become the one value delivered.
- Read from a single source field.
- Directionality
- For ordered values, what a higher value means.
- Higher number means larger area.
- Deprecation
- True when the attribute is being retired; choose another for new work.
- false