What kind of home is 9 Grange Avenue, N20 8AA?

9 Grange Avenue, N20 8AA is a 6-bedroom detached house.

What did 9 Grange Avenue, N20 8AA sell for?

9 Grange Avenue, N20 8AA last sold for £3,900,000 in May 2024, around 2 years ago. Before that, it sold for £2,700,000 in July 2010, so prices have been rising over 14 years on record. Source: HM Land Registry.

How has the value of 9 Grange Avenue, N20 8AA changed over time?

Across 2 sales between July 2010 and May 2024, 9 Grange Avenue, N20 8AA rose from £2,700,000 to £3,900,000, a change of £1,200,000. That works out to roughly +2.7% per year compounded over 14 years. Source: HM Land Registry.

What is the EPC rating for 9 Grange Avenue, N20 8AA?

The current EPC rating for 9 Grange Avenue, N20 8AA is D with a score of 68 out of 100, lodged in February 2022. The assessor estimates the property could reach a C. Source: EPC Register.

How big is 9 Grange Avenue, N20 8AA?

9 Grange Avenue, N20 8AA has a recorded floor area of 374 m² (4,026 sq ft), around 62 m² per bedroom. Source: EPC Register.

What heating system does 9 Grange Avenue, N20 8AA use?

The latest EPC at 9 Grange Avenue, N20 8AA records mains gas as the main heating fuel. Source: EPC Register.

Are there any planning records for 9 Grange Avenue, N20 8AA?

9 Grange Avenue, N20 8AA has an active planning application for outbuilding (ref. 25/3932/192), filed in September 2025 by Scott & Sampson Architects, currently awaiting a decision. Across the wider record there are 4 approved applications on file. Source: PlanIt planning register.

What is the council tax band for 9 Grange Avenue, N20 8AA?

9 Grange Avenue, N20 8AA is in council tax band H. That sits towards the upper end of the band ladder, typically reflecting larger or higher-value homes.

Which area is 9 Grange Avenue, N20 8AA in?

9 Grange Avenue, N20 8AA sits in Barnet, London, London. It falls within the N20 postcode district.

What is crime like near 9 Grange Avenue, N20 8AA?

Police records around 9 Grange Avenue, N20 8AA show an average of 4 reported crimes per month over the last 14 months. Violent crime makes up roughly 45% of reports, the most common category. The overall trend is rising (43% versus the prior period). Source: Police UK.

What schools are near 9 Grange Avenue, N20 8AA?

The closest primary school to 9 Grange Avenue, N20 8AA is Underhill School (1.0km), one of 17 primaries within walking distance. The closest secondary is The Totteridge Academy (618m), with 7 secondaries in the surrounding area.

What transport links are near 9 Grange Avenue, N20 8AA?

The closest bus stop to 9 Grange Avenue, N20 8AA is Grange Avenue (N20), 269m away. In total there are 30 bus stops within the surrounding area.

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9 Grange Avenue, Barnet, London, N20 8AA

15 planning records

Property type

Detached

Bedrooms

Bathrooms

Floor area

374 m²

4026 sq ft

Energy rating

Score 68

Council tax

Band H

Tenure

Owner Occupied

Overview

About 9 Grange Avenue

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

9 Grange Avenue is a six-bedroom detached house in Barnet, London, London (N20 8AA). It has a recorded floor area of 374 m² (around 4026 sq ft), construction records dating it to 1930-1949 and council tax band H. The latest certificate (February 2022) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2010. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Very Poor to Average and window efficiency went from Average to Good. The recommended improvements would push it to C (score 74).

15 planning records sit against the property, 4 approved, 3 refused, 2 pending. Past consents include an extension, a basement excavation, a porch and a loft conversion, meaningful when judging how the property has evolved. An application is currently awaiting a decision. Across 2010–2024, sale prices on this property compounded at 2.7% per year. Today's modelled estimate of £4,765,000 is 22.2% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£969/sq ft) was about 107.9% above the typical sold price in the postcode. At 374 m² it's 21.2% smaller than the typical home in the postcode (474 m² median across 9 EPCs). Last sale on file: £3,900,000 in May 2024.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

Bedrooms6
Bathrooms4

Before you decide

Everything you need to know about 9 Grange Avenue

The true value, the hidden risks and the full sale history, in one report.

£14.99one-off

30-day money-back guarantee

The data behind every report

Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

9 Grange Avenue's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate(1 of 2)

Feb 2022

EPC Rating

D68

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Good

CO2 Emissions

12.0 t/year

Occupancy

Owner Occupied

Property Improvements

Changes detected from historical EPC data

Feb 2022from Apr 2010

Heating Controls

Prog + StatFull Control

Heating controls upgraded for better temperature management

Windows

Partial DoubleFull Double

Windows upgraded, improving insulation

Wall Insulation

UninsulatedInsulated Cavity

Cavity wall insulation installed

Roof Insulation

UninsulatedWell Insulated

Loft insulation installed or upgraded to 250mm+

Low Energy Lighting

50%78%

More low energy lighting installed

Get a survey for this property

Level 3 Building Survey

Early 20th centuryDetached HouseEPC DDetached over 300m²Extended multiple times (2+ extensions)

Because the property is a large detached home over 300m² and has been extended more than once, we believe a Level 3 building survey should be considered.

Planning

Planning history

Applications and permits filed against 9 Grange Avenue, Barnet, London, N20 8AA, sourced from the PlanIt planning register.

There is a planning application currently awaiting a decision.

Sept 2025
OutbuildingOutline
In report
Erection of a swimming pool in the rear garden
Agent
Scott & Sampson Architects
Documents
3 docs on file
Reference
25/3932/192
View planning record
Sept 2025
RenovationFull
In report
Replacement of the existing front boundary wall with new sliding access gates and associated railings. Removal of the front entrance canopy and installation of new portico with decorative stone banding around the main entrance
Agent
Scott & Sampson Architects
Documents
7 docs on file
Reference
25/3826/HSE
View planning record

What's in 9 Grange Avenue, Barnet, London, N20 8AA's planning history?

13 more on this property, plus refusals, disputes and full decisions nearby, in the report.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

9 Grange Avenue valuation sits well clear of the typical sold price in this postcode.

Current estimate

£4,765,000

Modelled from EPC, postcode comparables and a sale-price growth of 2.7% per year over 14 years.

See how we calculated this

Last sold (2024)

£3,900,000

Growth on file: 2.7% per year over 14 years.

Sales timeline

22 May 2024Most recent
£3,900,000
+44.4%over 13 years
8 July 2010
£2,700,000

Median price across the last 5 sales in N20 8AA: £2,525,000 (2022–2013).

Nearby sales in N20 8AA

On the street

Versus other Grange Avenue homes

Four headline reads against 9 similar houses on this street, drawn from the latest EPC and Land Registry data.

On price per m², 9 Grange Avenue stands well clear of the street.

Price per m²

£10,428

Street avg £6,147

Strongly above

Floor Area

374 m²

Street avg 424 m²

Below

Habitable Rooms

12 rooms

Street avg 10 rooms

Strongly above

CO₂ Emissions

12.0 t/year

Street avg 13.2 t/year

On par

Before you decide

Everything you need to know about 9 Grange Avenue

The true value, the hidden risks and the full sale history, in one report.

£14.99one-off

30-day money-back guarantee

The data behind every report

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.

£4.7m

1 Hadar Close, Barnet

N20 8TL

6 bed7 bath

£3.5m

1 The Pastures, Barnet

N20 8AN

6 bed5 bath

£3.3m

1 Totteridge Village, Barnet

N20 8NX

6 bed5 bath

£1.4m

1 West Hill Way, Barnet

N20 8QX

6 bed3 bath

£2.3m

1 Grange Avenue, Barnet

N20 8AA

5 bed

£1.1m

1 Lynton Mead, Barnet

N20 8DG

5 bed

£3.6m

1 Totteridge Common, Barnet

N20 8LL

£1.6m

1 Ventnor Drive, Barnet

N20 8BT

4 bed3 bath

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the London district page.

Full London report

Reported crime in the wider district is trending notably upward year-on-year.

Crime

4/mo

Rising year-on-year across the wider district.

Nearest stop

0.3 km

Grange Avenue (N20) — bus stop.

Closest school

0.6 km

The Totteridge Academy. 24 schools nearby.

Go deeper on the local area

The full report breaks down crime, transport links, schools and air quality in depth.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around N20 8AA from Defra's strategic mapping. The pin marks this postcode's centroid.

Daytime· 07:00 – 23:00

44.8dB

Low

Night-time road noise heatmap for N20 8AA

Night-time· 23:00 – 07:00

38.7dB

Low

55 dB

60 dB

65 dB

70 dB

75 dB

80 dB

Defra Road Noise Strategic Mapping, Round 4

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 9 Grange Avenue, Barnet, London, N20 8AA. Each answer is also embedded as structured data for search engines.