18a, Belsize Lane, London, NW3 5AB

18a is a four-bedroom semi-detached house in London (NW3 5AB). It has a recorded floor area of 137 m² (around 1475 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (February 2024) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2010. Between certificates, window efficiency went from Poor to Average; while roof efficiency dropped from Very Good to Poor and lighting dropped from Average to Poor. The recommended improvements would push it to C (score 79). Other recorded features include notable views. Period features are noted in the property record.

9 years since the last transfer (January 2017). Across the public record there are 4 sales, relatively high churn for a single property. At 137 m² it's 25.7% larger than the typical home in the postcode (109 m² median across 26 EPCs). Across 1998–2017, sale prices on this property compounded at 7.9% per year. Today's modelled estimate of £1,767,000 is 15.9% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£1,034/sq ft) was about 61.6% above the typical sold price in the postcode.