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25 Grange Avenue, Barnet, London, N20 8AA

6 planning records
Property type
Detached
Bedrooms
6
Bathrooms
3
Floor area
227 m²
2443 sq ft
Energy rating
C
Score 69
Council tax
Band H
Tenure
Owner Occupied
Overview

About 25 Grange Avenue

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

25 Grange Avenue is a six-bedroom detached house in Barnet, London, London (N20 8AA). It has a recorded floor area of 227 m² (around 2443 sq ft), construction records dating it to 1983-1990 and council tax band H. The latest certificate (September 2023) shows a C (score 69), just inside the C band. When first surveyed in March 2010 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good.

At 227 m² it sits well below the postcode median (474 m² across 9 EPCs), making it one of the more compact homes locally. 6 planning records sit against the property, 1 approved, 3 refused. Past consents include an extension, a loft conversion and a basement excavation, meaningful when judging how the property has evolved. Across 1996–2013, sale prices on this property compounded at 8.4% per year. Today's modelled estimate of £2,289,000 is 23.7% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£757/sq ft) was about 49.6% above the typical sold price in the postcode. Last changed hands 13 years ago, in May 2013.

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
  • Bathrooms3
  • Dining roomYes
  • Utility roomYes
  • CloakroomYes
  • EnsuiteYes
Before you decide

Everything you need to know about 25 Grange Avenue

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

£14.99one-off

30-day money-back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

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

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

Current Certificate(1 of 2)
Sept 2023

EPC Rating

A
B
C
C69
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
7.2 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Sept 2023from Mar 2010
EPC improved fromD64toC69
Heating Controls
Prog + TRVsFull

Heating controls upgraded for better temperature management

Low Energy Lighting
0%100%

More low energy lighting installed

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Late 20th centuryDetached HouseEPC CExtended multiple times (2+ extensions)

Because the property has been extended more than once, we believe a Level 3 building survey should be considered.

From £1,945 · Includes VAT

Planning

Planning history

Applications and permits filed against 25 Grange Avenue, Barnet, London, N20 8AA, sourced from the PlanIt planning register.
  1. May 2010
    Loft ConversionFull
    In report

    Extension: Rear of property

    Extensions to roof including increase in ridge height, 2 dormer windows (1 front, 1 rear), 6 rooflights (4 front, 3 rear) and new inset balcony to rear to facilitate a loft conversion. Formation of new basement level. Part single, part two storey front extension. Part single, part two storey rear extension including first floor balcony. New paved terrace to rear including 3 basement rooflights and swimming pool plant enclosure.

    Agent
    Transformation Architects.
    ExtensionBasement
    Documents
    6 docs on file
    Reference
    B/00960/10
    View planning record
  2. Jan 2010
    Loft ConversionFull
    In report

    Extension: Part single, part two storey · Rear of property

    Extensions to roof including increase in ridge height, 2 dormer windows (1 front, 1 rear), 5 rooflights (2 front, 3 rear) and new inset balcony to rear to facilitate a loft conversion. Formation of new basement level. Part single, part two storey front extension. Part single, part two storey rear extension including first floor balcony. New paved terrace to rear including 3 basement rooflights and swimming pool plant enclosure.

    Agent
    Transformation Architects
    ExtensionBasement
    Documents
    3 docs on file
    Reference
    B/04374/09
    View planning record

What's in 25 Grange Avenue, Barnet, London, N20 8AA's planning history?

4 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.

Sale price has grown by over 3x since 1996.

Current estimate

£2,289,000

Modelled from EPC, postcode comparables and a sale-price growth of 8.4% per year over 17 years.

See how we calculated this
Last sold (2013)

£1,850,000

Growth on file: 8.4% per year over 17 years.

Sales timeline

  1. 19 May 2013Most recent

    £1,850,000

    +285.4%over 16 years
  2. 2 September 1996

    £480,000

Median price across the last 5 sales in N20 8AA: £3,000,000 (2024–2015).

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 floor area, 25 Grange Avenue runs well behind the street norm.

Price per m²

£8,150

Street avg £6,432

Above

Floor Area

227 m²

Street avg 441 m²

Strongly below

Habitable Rooms

10 rooms

Street avg 10 rooms

On par

CO₂ Emissions

7.2 t/year

Street avg 13.7 t/year

Above
Before you decide

Everything you need to know about 25 Grange Avenue

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

£14.99one-off

30-day money-back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
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.

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 road noise heatmap for N20 8AA

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 25 Grange Avenue, Barnet, London, N20 8AA. Each answer is also embedded as structured data for search engines.