Automated Valuation Models, comparable sales, appraisal data, and property value estimates.
Massachusetts uses a mortgage lien theory. County registries of deeds maintain property records. The state has a real estate excise tax. Boston metro has one of the most competitive housing markets in the US.
5 sources available
ClearAVM is an automated valuation model (AVM) that provides property valuations. It is designed for use by investors, lenders, and regulators.
Automated valuation models for mortgage and insurance use.
Official US single-family house price indices from FHFA available via bulk download and CSV.
Monthly house price indices at national, state, and metro levels from Freddie Mac.
Automated home valuations for 110+ million US properties.