Property Valuation

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, the FabricaAVM, and the signals it triangulates.

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, the API and the price oracle, 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, returned by the API and signed by the price oracle 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. Prices and estimates are shown in whole dollars.

Estimates are a starting point

Value figures are inputs for evaluation, not official appraisals.

Land valuation is inherently imprecise, estimates vary between providers, and remote or unique parcels are harder to value. Review comparable sales, weigh the property's specific characteristics, and obtain a formal appraisal when the stakes warrant it. The published confidence level exists precisely so low-confidence estimates are treated with appropriate caution. For how lending underwrites against these figures, see Valuation signals and underwriting.

The signed price oracle

Fabrica's estimated value is also published as an EIP-712 signed price quote through a public endpoint, so lending pools, vault curators, and analytics tools can consume a verifiable reference price. The same data that powers the property page powers the oracle.

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.