40b, Princess Road, London, NW6 5QU

40b is a semi-detached house in London (NW6 5QU). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1930-1949 and council tax band C. At 56 m² this is the 4th smallest of 10 units on EPC record in the building, where floor areas span 43–100 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (September 2020) 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 July 2010. Between certificates, lighting went from Poor to Very Good. The recommended improvements would push it to C (score 78).

3 planning records sit against the property, 3 approved, 0 refused. The record references listed-building consent, which constrain future alterations. Last sale on file: £473,000 in June 2021. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 2006–2021, sale prices on this property compounded at 5.2% per year. On a £-per-square-foot basis, the last sale (£785/sq ft) was about 77.4% above the typical sold price in the postcode.