11 Chalfont Court, Colindeep Lane, Barnet, London, NW9 6DY

11 Chalfont Court is a two-bedroom mid-terrace house in Barnet, London, London (NW9 6DY). It has a recorded floor area of 54 m² (around 581 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (November 2025) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since December 2015. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Average; while window efficiency dropped from Average to Very Poor. The recommended improvements would push it to C (score 73). This certificate was lodged in the last six months, so the rating reflects current condition. At 54 m² this is the 8th smallest of 20 units on EPC record in the building, where floor areas span 42–82 m². The building's EPC ratings span E to C across 20 units on file.

It hasn't traded since April 2000, a hold of 26 years that's notably long for the area. Sale prices here have outpaced London HPI: 26% per year against 0% for the wider region. Today's modelled estimate of £349,000 sits 259.1% above the 2000 sale of £97,200. On a £-per-square-foot basis, the last sale (£167/sq ft) was about 36.5% below the postcode norm.