DL3 is the 2nd Hapiest of Darlington's 4 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport.
Each tile ranks DL3 against the other postcode districts of Darlington.
Yellow is Hapi: the more yellow, the better DL3 compares with the rest of Darlington. These colours compare postcode districts within Darlington; Darlington's own Swatch compares it with areas across England and Wales.
Estate agents: the local partner spot is open in DL3. Find out more
Open-market sales from HM Land Registry Price Paid Data in the 12 months to August 2026 (homes in Darlington only); price per m², energy and carbon from the homes sold that have an Energy Performance Certificate. Postcode districts with fewer than 20 sales a year in Darlington aren't ranked.