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Get started51 Hillfield Avenue is a semi-detached house in Barnet, London, London (NW9 6NY). It has a recorded floor area of 27 m² (around 291 sq ft), construction records dating it to 2012 onwards and council tax band E. The latest certificate (October 2023) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in July 2010 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Very Poor to Good and window efficiency went from Average to Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would lift it to A (score 100), a 3-band jump. Main heating runs on electricity.
Sale prices here have outpaced London HPI: 7.1% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£2,925/sq ft) was about 1344.7% above the typical sold price in the postcode. At 27 m² it sits well below the postcode median (91 m² across 16 EPCs), making it one of the more compact homes locally. 3 planning records sit against the property, 1 approved, 2 refused. Past consents include an extension, meaningful when judging how the property has evolved. Most recent transfer: February 2023 at £850,000.
Recommended upgrades on file would lift this property by multiple EPC bands.
Council records show a subdivision application — the property's legal arrangement has been altered.
Extension: Part single, part two storey · Side and rear of property
Latest sale on 51 Hillfield Avenue was the highest on Land Registry record across the postcode.
£804,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.1% per year over 22 years.
£850,000
Growth on file: 7.1% per year over 22 years.
51 Hillfield Avenue outperforms the street on price per m² by a wide margin.
Price per m²
£31,481
Street avg £3,596
Floor Area
27 m²
Street avg 103 m²
Habitable Rooms
1 rooms
Rail-style transport is unusually close for this postcode.
Crime
15/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Sheaveshill Avenue — bus stop.

Daytime· 07:00 – 23:00
55.4dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Low energy lighting percentage decreased
More low energy lighting installed
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Window efficiency improved
External or internal wall insulation added
Roof insulation improved
Floor insulation added or improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
Two storey side and part single; part two storey rear extension, in addition to conversion into 2x 2 bedroom self-contained flats and associated parking.
Extension: Part single, part two storey · Side and rear of property
Two-storey side and part single, part two-storey rear extension.
1 more application for this property
Join to see all planning history.
1 February 2023Most recent
£850,000
+100.0%over 19 years2 September 2003
£425,000
+132.2%over 2 years6 October 2000
£183,000
Median price across the last 5 sales in NW9 6NY: £380,000 (2019–2009).
Street avg 5 rooms
CO₂ Emissions
1.8 t/year
Street avg 4.7 t/year
Closest school
0.2 km
Colindale Primary School. 47 schools nearby.
Night-time· 23:00 – 07:00
45.8dB
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