15a, Greenhill Parade, Great North Road, New Barnet, Barnet, EN5 1ES

15a is a mid-terrace house in New Barnet, Barnet, Barnet (EN5 1ES). It has a recorded floor area of 33 m² (around 355 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (August 2019) shows an F (score 32), near the bottom of the EPC scale. Earlier certificates rated it C (March 2009); the latest reading is 3 bands lower. Between certificates, wall efficiency dropped from Very Good to Good and roof efficiency dropped from Good to Very Poor. Main heating runs on electricity. At 33 m² this is the 3rd smallest of 24 units on EPC record in the building, where floor areas span 8–125 m². The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (32 versus a best of 77).

Held since July 2001 — that's 25 years off the open market, well above the local norm. At 33 m² it's 28.3% smaller than the typical home in the postcode (46 m² median across 23 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £295,000 sits 55.3% above the 2001 sale of £190,000. On a £-per-square-foot basis, the last sale (£535/sq ft) was about 68.8% above the typical sold price in the postcode. One planning record on file: a loft conversion approved in 2008. Past consents include a loft conversion and subdivision, meaningful when judging how the property has evolved.