13 Borough Road, Isleworth, TW7 5DY

13 Borough Road is a three-bedroom detached house in Isleworth (TW7 5DY). It has a recorded floor area of 112 m² (around 1206 sq ft), construction records dating it to 1930-1949 and council tax band F. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Our model identifies extension potential, subject to local planning policy. The latest certificate (January 2026) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in December 2023 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Poor to Good; while window efficiency dropped from Average to Poor and lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 80). This certificate was lodged in the last six months, so the rating reflects current condition.

It changed hands recently, sold March 2025 for £800,000. One historical planning record sits against the property in 2025. The record references conservation-area consent, which constrain future alterations. At 112 m² it sits well below the postcode median (165 m² across 3 EPCs), making it one of the more compact homes locally. On a £-per-square-foot basis, the last sale (£664/sq ft) was about 164.4% above the typical sold price in the postcode.