Property Valuation

In short
A property page shows an estimated value, the county's assessed value and the last recorded sale. The headline estimate is the highest qualifying source; the value in token metadata and the API is the more conservative lower of the two land estimates. All of them are estimates to start your research, not appraisals.

Every Fabrica property page, and the token's metadata, shows a few value figures so buyers, sellers, and lenders can size up a parcel. This page explains what each one means. For the methodology behind them, see how Fabrica values land and the FabricaAVM.

The figures you'll see

Figure	What it is	How to read it
Estimated value	On the property page, the highest of the available sources that qualifies (see below). In token metadata and the API, Fabrica's AVM estimate combined conservatively with a third-party land signal	A modeled estimate, shown with a confidence level where the source carries one. Lower confidence means treat it with more caution.
Assessed value	The local tax assessor's value	Useful for tax context; usually well below market and updated on irregular schedules.
Last sale price	The most recent county-recorded sale	Historical context; may be stale, and some transfers (gifts, foreclosures) are not arms-length.

These figures are written into the token's metadata, so they travel with the token to external marketplaces such as OpenSea and any application that reads it.

Which figure leads

The property page shows one estimated value in its Marketplace card and lists every source behind it, each with its own value and, where it has one, its own confidence. The headline is the highest source whose confidence is at least 50%. County values carry no confidence and always qualify; a source below the minimum stays in the list, marked as not used; and the last recorded sale never sets the headline, because one deed can convey several parcels and the county attaches the whole price to each of them. When no source qualifies, the card shows no estimate.

The estimatedValue written into token metadata and returned by the API is more conservative: it takes the lower of the AVM estimate (when its confidence is usable) and the third-party land estimate, falls back to the county's assessed parcel value when neither is available, and is never the last sale. The price oracle signs its own price from the same inputs, with further lending haircuts. Prices and estimates are shown in whole dollars.

Estimates are a starting point

Every figure here is a starting point, not an appraisal. Review comparable sales and obtain a formal appraisal when the stakes warrant it; see Valuation for why, and for how lending uses these figures.

The signed price oracle

A price derived from the same valuation data is also published as an EIP-712 signed quote through a public endpoint, so lending pools, vault curators, and analytics tools can consume a verifiable reference price.

For owners: the oracle is intended to be funded by a planned yearly fee on the property side (not charged today), similar to a tax assessment or a title-insurance premium.
For developers and integrators: see Price Oracle for the endpoint, signing scheme, and onchain integration.