9 Greenbrook Avenue, Barnet, EN4 0LS
About 9 Greenbrook Avenue
9 Greenbrook Avenue is a six-bedroom detached house in Barnet (EN4 0LS). It has a recorded floor area of 520 m² (around 5597 sq ft), construction records dating it to 1930-1949 and council tax band H. The latest certificate (June 2023) shows a C (score 76), near the top of the C band. The rating has held steady at C across 2 certificates since October 2010. Between certificates, roof efficiency went from Average to Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 83). Other recorded features include outbuildings.
It hasn't traded since September 2001, a hold of 25 years that's notably long for the area. At 520 m² the property is well over the postcode median (261 m² across 16 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £2,842,000 sits 264.4% above the 2001 sale of £780,000. On a £-per-square-foot basis, the last sale (£139/sq ft) was about 61.6% below the postcode norm. 4 planning records sit against the property, 2 approved, 2 refused. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved.
What this property has
Inside
- Bedrooms6
- Bathrooms5
- EnsuiteYes
Outside
- Private gardenRear
- GarageIntegral
- OutbuildingsYes
Energy performance
9 Greenbrook Avenue's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Roof insulation improved
More low energy lighting installed
Planning history
9 Greenbrook Avenue has an approved single-storey rear extension on the planning record.
- Feb 2004FullIn report
Erection of boundary walls and railings together with entrance gates
- Reference
- TP/03/2398
- Oct 2002ExtensionFullIn report
Rear conservatory, single storey front, rear and first floor side extensions and rear dormers including increase in height of existing roof, (Amendments to Planning Permission TP/01/1344).
- Reference
- TP/02/1572
We flagged 1 thing worth checking at 9 Greenbrook 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
9 Greenbrook Avenue's estimated value is more than triple its earliest registered sale price (2001).
£2,842,000
Modelled from EPC, postcode comparables.
£780,000
Recorded with HM Land Registry.
Sales timeline
19 September 2001Most recent
£780,000
Median price across the last 5 sales in EN4 0LS: £1,800,000 (2025–2020).
Nearby sales in EN4 0LS
13a, Greenbrook Avenue, Barnet, EN4 0LS
Sold Aug 2025
£1,350,00015a, Greenbrook Avenue, Barnet, EN4 0LS
Sold Dec 2024
£1,900,0006 Greenbrook Avenue, Barnet, EN4 0LS
Sold Mar 2021
£1,980,00018 Greenbrook Avenue, Barnet, EN4 0LS
Sold Sept 2020
£1,800,00015 Greenbrook Avenue, Barnet, EN4 0LS
Sold Jun 2020
£1,250,000
Versus other Greenbrook Avenue homes
9 Greenbrook Avenue is notably below the street on price per m².
Price per m²
£1,500
Street avg £4,898
Floor Area
520 m²
Street avg 282 m²
Habitable Rooms
8 rooms
Street avg 9 rooms
CO₂ Emissions
11.8 t/year
Street avg 9.0 t/year
Similar properties nearby
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1 Greenbrook Avenue
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1 Bournwell Close
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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
0.1 km
Newmans Way — bus stop.
Closest school
0.8 km
Hadley Wood Primary School. 18 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
45.4dB

Night-time· 23:00 – 07:00
37.3dB







