Ambient House, Flat 8, 82 Tysoe Avenue, Enfield, EN3 6FH

Ambient House is a two-bedroom end-of-terrace house in Enfield (EN3 6FH). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (March 2016) shows a C (score 80), near the top of the C band. The rating has held steady at C across 2 certificates since June 2009. Between certificates, wall efficiency went from Good to Very Good, window efficiency went from Average to Good and lighting went from Very Poor to Poor; while hot-water efficiency dropped from Average to Poor. The recommended improvements would push it to B (score 85). Main heating runs on electricity. The latest certificate is from March 2016, so improvements made since then won't be reflected. At 55 m² this is the 3rd smallest of 11 units on EPC record in Ambient House, where floor areas span 53–65 m². The building's EPC ratings span D to B across 11 units on file.

Held since January 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2001–2007, sale prices on this property compounded at 3.6% per year. Today's modelled estimate of £267,000 sits 72.3% above the 2007 sale of £155,000. Its energy rating outperforms most of the postcode (better than 70% of similar EPCs).