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Get started11 Colwyn Green is a one-bedroom end-of-terrace house in Barnet, London, London (NW9 7RB). It has a recorded floor area of 29 m² (around 312 sq ft), construction records dating it to 1996-2002 and council tax band B. At 29 m² this is the 2nd smallest of 27 units on EPC record in the building, where floor areas span 25–89 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (August 2024) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it C (May 2014); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Average; while hot-water efficiency dropped from Average to Poor and main heating dropped from Average to Very Poor. The recommended improvements would push it to C (score 79). Main heating runs on electricity.
Sale prices here have outpaced London HPI: 8.4% per year against 0% for the wider region. Today's modelled estimate of £222,000 is 37.5% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£517/sq ft) was about 158.7% above the typical sold price in the postcode. It lags the bulk of the postcode on energy efficiency (less efficient than 81% of similar EPCs). Last sold in May 2014, so it's been off the market for around 12 years.
11 Colwyn Green has more than tripled in price since its earliest registered sale in 1998.
£222,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.4% per year over 15 years.
£161,500
Growth on file: 8.4% per year over 15 years.
Price per m² for 11 Colwyn Green runs comfortably ahead of the street norm.
Price per m²
£5,569
Street avg £3,102
Floor Area
29 m²
Street avg 31 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
Springfield Gardens — bus stop.

Daytime· 07:00 – 23:00
51.6dB

Changes detected from historical EPC data
Heating system changed
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Single glazing replaced with double or better glazing
Loft insulation upgraded to recommended levels
Are we missing something? Tell us about home improvements to help adjust your valuation.
30 May 2014Most recent
£161,500
+29.3%over 6 years14 April 2008
£124,950
+171.6%over 9 years4 December 1998
£46,000
Median price across the last 5 sales in NW9 7RB: £118,000 (2021–2009).
20 Colwyn Green Snowdon Drive Barnet London
Sold Jul 2021
10 Colwyn Green Snowdon Drive Barnet London
Sold Apr 2012
12 Colwyn Green Snowdon Drive Barnet London
Sold Sept 2010
1 Colwyn Green Snowdon Drive Barnet London
Sold Sept 2009
29 Colwyn Green Snowdon Drive Barnet London
Sold Aug 2009
Street avg 1 rooms
CO₂ Emissions
1.9 t/year
Street avg 2.0 t/year
NW9 7SB
Closest school
0.4 km
Oliver Goldsmith Primary School. 50 schools nearby.
Night-time· 23:00 – 07:00
42.2dB
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