18 Halsey Street, Kensington And Chelsea, London, SW3 2QH

18 Halsey Street is a four-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW3 2QH). It has a recorded floor area of 208 m² (around 2239 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (February 2016) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 81), a 2-band jump. The latest certificate is from February 2016, so improvements made since then won't be reflected. Period features are noted in the property record.

Sale prices here have outpaced London HPI: 5.7% per year against -0.1% for the wider region. Today's modelled estimate of £4,390,000 is 20.2% below the 2025 sale of £5,500,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£2,457/sq ft) was about 85.1% above the typical sold price in the postcode. It changed hands recently, sold October 2025 for £5,500,000. Across the public record there are 4 sales, relatively high churn for a single property. 13 planning records sit against the property, 9 approved, 4 refused. Past consents include an extension, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations.