21 Blackman Close, Hoo, Rochester, ME3 9LF

21 Blackman Close is a three-bedroom semi-detached house in Hoo, Rochester, Rochester (ME3 9LF). It has a recorded floor area of 90 m² (around 969 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (June 2014) shows an E (score 45), well below the UK norm with real room to improve. Earlier certificates rated it D (November 2013); the latest reading is one band lower. Between certificates, roof efficiency dropped from Poor to Very Poor and hot-water efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 88), a 3-band jump. The latest certificate is from June 2014, so improvements made since then won't be reflected. Other recorded features include outbuildings.

At 90 m² the property is well over the postcode median (47 m² across 31 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Last sale on file: £340,000 in January 2023. Across the public record there are 4 sales, relatively high churn for a single property. Across 1998–2023, sale prices on this property compounded at 6.6% per year. On a £-per-square-foot basis, the last sale (£351/sq ft) was about 121.4% above the typical sold price in the postcode.