Use cases · Housing
Which homes in town are rented year-round, address by address?
A housing plan counts from surveys and averages; the deeds, the cards and the rental permits name the homes one at a time.
Each green house is a home the deeds show rented year-round, found by its address.

A three-decker in Worcester, Massachusetts · photograph by John Phelan, CC BY 3.0
To carry upstairs
One sentence for the manager, three for the housing committee
Massachusetts statewide housing plan, February 2025; 222,000 year-round homes sought by 2035 · MACDC, December 2025; 163,000 low-rent homes lost statewide from 2012 to 2022, counted by Census proxies rather than by address
In one town
Ten years of deeds, and what one town asked of them
One coastal Massachusetts town asked what ten years of its deeds say about how long people stay and whether the town is turning seasonal; ArtifexAI is building that answer now from the registry’s own entries, owner by owner, with each line pointing back to the deed it came from.
One street over ten years; each bar is one owner’s years, green where the home is year-round and grey where it is seasonal.
See how one town found its rentals address by address.
The rentals case is the nearest case to this desk, since the homes in it were matched from the same deeds and cards a housing plan starts from; a question sent from here goes to a founder, who replies.