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Get started26 Clovelly Avenue is a semi-detached house in Barnet, London, London (NW9 6DT). It has a recorded floor area of 154 m² (around 1658 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (December 2017) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in October 2014 the rating was G, the property has climbed 3 bands since. Between certificates, window efficiency went from Very Poor to Good, hot-water efficiency went from Very Poor to Good and lighting went from Average to Good. The recommended improvements would lift it to B (score 81), a 2-band jump.
Sale prices here have outpaced London HPI: 12.4% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£446/sq ft) was about 106.6% above the typical sold price in the postcode. At 154 m² the property is well over the postcode median (93 m² across 16 EPCs), placing it in the larger end of the local stock. 4 planning records sit against the property, 1 approved, 2 refused. Past consents include an extension, meaningful when judging how the property has evolved. Sold April 2021 for £740,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Recommended upgrades on file would lift this property by multiple EPC bands.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Change of use from C3 (Dwelling house) to a 5 bed C4 HMO (House in Multiple Occupation) for 5 people (Retrospective Application)
Latest sale on 26 Clovelly Avenue was the highest on Land Registry record across the postcode.
£763,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.4% per year over 6 years.
£740,000
Growth on file: 12.4% per year over 6 years.
26 Clovelly Avenue outperforms the street on floor area by a wide margin.
Price per m²
£4,805
Street avg £3,520
Floor Area
154 m²
Street avg 101 m²
Habitable Rooms
6 rooms
Rail-style transport is unusually close for this postcode.
Crime
15/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Clovelly Avenue — bus stop.

Daytime· 07:00 – 23:00
54.7dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Single glazing replaced with double or better glazing
Wall insulation improved
Low energy lighting percentage decreased
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Use C3 (Dwelling house) to C4 HMO (House in Multiple Occupation) for 6 persons
2 more applications for this property
Join to see all planning history.
9 April 2021Most recent
£740,000
+16.9%over 4 years25 May 2016
£632,800
+78.3%over 1 year30 December 2014
£355,000
Median price across the last 5 sales in NW9 6DT: £425,000 (2025–2011).
Street avg 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 4.7 t/year
Closest school
0.2 km
Colindale Primary School. 49 schools nearby.
Night-time· 23:00 – 07:00
45.1dB
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