21 Courtleigh Avenue, Barnet, EN4 0HT
About 21 Courtleigh Avenue
21 Courtleigh Avenue is a four-bedroom detached house in Barnet (EN4 0HT). It has a recorded floor area of 384 m² (around 4133 sq ft), construction records dating it to 1950-1966 and council tax band H. The latest certificate (April 2023) returns a B (score 82), comfortably above the UK average. When first surveyed in June 2018 the rating was F, the property has climbed 4 bands since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Very Poor to Good and lighting went from Very Poor to Very Good. Main heating runs on electricity.
At 384 m² the property is well over the postcode median (179 m² across 10 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £2,505,000 sits 98% above the 2021 sale of £1,265,000. On a £-per-square-foot basis, the last sale (£306/sq ft) was about 23.9% below the postcode norm. 4 planning records sit against the property, 3 approved, 1 refused. Past consents include an extension, a porch, new windows and an annexe, meaningful when judging how the property has evolved. Sold June 2021 for £1,265,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms4
- Bathrooms3
- Dining roomYes
Outside
- Private gardenSouth-facing
- ParkingOff street
Everything you need to know about 21 Courtleigh Avenue
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
21 Courtleigh Avenue ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
Cavity wall insulation installed
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Planning history
- Jun 2023PorchFullIn report
Extension: Part single, part two storey · Front of property
Part single, part 2-storey front extension incorporating a front entrance porch, part single, part 2-storey rear extension, together with demolishment of single storey side extension, with extension and height increase to roof with rear and side dormer windows, rooflights at front, side and rear, replacement of existing windows at rear and additional flank window ( RETROSPECTIVE)
- Agent
- CR Design Services
RetrospectiveExtension- Documents
- 5 docs on file
- Reference
- 22/02561/HOU
- Nov 2021PorchFullIn report
Extension: Part single, part two storey · Side and rear of property
Part single, part 2-storey front extension incorporating a front entrance porch, part single, part 2-storey rear extension, together with extension and height increase to roof with rear and side dormer windows, rooflights at front, side and rear, replacement of existing windows at rear and additional flank window.
- Agent
- BHP ARCHITECTS
ExtensionNew Windows- Documents
- 6 docs on file
- Reference
- 21/03362/HOU
We flagged 1 thing worth checking at 21 Courtleigh Avenue
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£2,505,000
Modelled from EPC, postcode comparables.
£1,265,000
Recorded with HM Land Registry.
Sales timeline
22 June 2021Most recent
£1,265,000
Median price across the last 5 sales in EN4 0HT: £1,072,000 (2019–2014).
Nearby sales in EN4 0HT
Versus other Courtleigh Avenue homes
21 Courtleigh Avenue is notably below the street on years held.
Price per m²
£3,294
Street avg £4,397
Floor Area
384 m²
Street avg 192 m²
Habitable Rooms
8 rooms
Street avg 8 rooms
CO₂ Emissions
4.7 t/year
Street avg 8.1 t/year
Everything you need to know about 21 Courtleigh Avenue
The true value, the hidden risks and the full sale history, in one report.
30-day money-back guarantee
The data behind every report
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The neighbourhood at a glance
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
Duchy Road — bus stop.
Closest school
0.2 km
Hadley Wood Primary School. 12 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
49.7dB
Night-time· 23:00 – 07:00
40.2dB