Color = years since the last document (sale, refinance, or transfer) was recorded — a recent-financial-activity signal, NOT years owned. Elmwood outlined.
Two vintages on this map. Owner names and owner type: City of Berkeley parcel layer, frozen at 2017-11-09. Recording recency: Alameda County assessor, current to Feb 2026. The county publishes no owner names, so 2017 is the newest whole-city roll that exists; ownership will have changed on many parcels since.