35a, Eccleston Square, Westminster, London, SW1V 1PB

35a is a three-bedroom mid-terrace house in Westminster, London, London (SW1V 1PB). It has a recorded floor area of 135 m² (around 1453 sq ft), construction records dating it to before 1900 and council tax band F. At 135 m² this is the 2nd smallest of 3 units on EPC record in the building, where floor areas span 83–365 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (May 2019) shows a C (score 73). The rating has held steady at C across 2 certificates since August 2009. Between certificates, window efficiency went from Very Poor to Good and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good.

6 planning records sit against the property, 4 approved, 0 refused, 2 pending. Past consents include an extension, meaningful when judging how the property has evolved. An active application for a basement excavation is awaiting a decision. At 135 m² the property is well over the postcode median (65 m² across 15 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). Most recent transfer: October 2022 at £1,670,000. Across the public record there are 7 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 1998–2022, sale prices on this property compounded at 8.6% per year. On a £-per-square-foot basis, the last sale (£1,149/sq ft) was about 85.5% above the typical sold price in the postcode.