Durham County holds the western half of the Research Triangle and Duke University. Built from publicly available county tax records. This report maps 128,480 parcels into 1,171 ownership concentration clusters using publicly available county tax records, including Durham, Research Triangle Park, and unincorporated Durham County. North Carolina assesses every parcel at 100% of true (market) value per NCGS §105-283 — no assessment-to-market multiplier is applied.
Research Triangle Park core. Durham County is the western anchor of the Research Triangle and home to Duke University. 128,480 parcels mapped to 1,171 ownership concentration clusters from publicly available Durham County tax records.
Fresh 2025 revaluation. Durham's last general reappraisal was effective 2025-01-01; values reflect current market.
RTP / Duke market specifics. Durham's mailing-address concentration patterns surface property managers and HOA associations specific to RTP-adjacent rental and condominium markets.
Pairs with Wake for the Research Triangle. The Research Triangle 2-County Bundle combines Durham (RTP) with Wake (Raleigh) for the full Triangle footprint at a $299 savings.
Executive dashboard, geographic treemap, scatter analysis, municipality breakdown across Durham, Research Triangle Park, and unincorporated Durham County, top clusters by two ranking methods, entity rosters, CSV quick-start guide, methodology, and legal disclaimer.
Every entity in every cluster. Filter by owner state, entity count, parcel count, or market value.
Wake + Durham. 581,592 parcels. 6,879 clusters. Save $299.
Wake + Durham + Guilford + Cumberland + Mecklenburg + Forsyth. 1,515,302 parcels. 19,851 clusters. Save $1394.
453,112 parcels. 5,708 clusters. $50.45B clustered.
214,145 parcels. 3,166 clusters. $15.29B clustered.