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Get started17 Ibsley Way is a three-bedroom semi-detached house in Cockfosters, Barnet, Barnet (EN4 9EY). It has a recorded floor area of 126 m² (around 1356 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (October 2023) shows a C (score 77), near the top of the C band. When first surveyed in February 2021 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Average to Good and lighting went from Average to Very Good. The recommended improvements would push it to B (score 86). Records show the property has been extended at some point in its history.
2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. At 126 m² it's 20% larger than the typical home in the postcode (105 m² median across 23 EPCs). Its energy rating outperforms most of the postcode (better than 87% of similar EPCs). Today's modelled estimate of £742,000 is 15% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£476/sq ft) was about 43.6% above the typical sold price in the postcode. Most recent transfer: May 2021 at £645,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
A a garage conversion application was refused at 17 Ibsley Way in 2021.
Extension: Single storey
Two-storey front extension including conversion of the existing garage into a habitable room. New roof to existing garage and insertion of a door and window to replace the existing garage door. New front entrance canopy and access steps. Insertion of single storey rear infill extension to the existing rear extension. Removal of a door on the flank elevation. Insertion of a new window to the flank elevation of the property at first floor level.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£742,000
Modelled from EPC, postcode comparables.
£645,000
Recorded with HM Land Registry.
17 Ibsley Way outperforms the street on habitable rooms by a wide margin.
Price per m²
£5,119
Street avg £4,106
Floor Area
126 m²
Street avg 106 m²
Habitable Rooms
8 rooms
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Bevan Road — bus stop.

Daytime· 07:00 – 23:00
51.5dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Window efficiency improved
Wall insulation upgraded
Loft insulation upgraded to recommended levels
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Single storey
Two-storey front extension including conversion of the existing garage into a habitable room. New roof to existing garage and insertion of a door and window to replace the existing garage door. New front entrance canopy and access steps. Insertion of single storey rear infill extension to the existing rear extension. Removal of a door on the flank elevation. Insertion of a new window to the flank elevation of the property at first floor level.
20 May 2021Most recent
£645,000
Median price across the last 5 sales in EN4 9EY: £625,000 (2025–2021).
Street avg 5 rooms
CO₂ Emissions
3.0 t/year
Street avg 4.6 t/year
EN4 9RD
Closest school
0.5 km
Trent CofE Primary School. 31 schools nearby.
Night-time· 23:00 – 07:00
40.9dB
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