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20 Coniston Close, Barnet, London, N20 0QL

1 planning record
Property type
Semi-detached
Floor 00
Habitable rooms
3
From EPC
Floor area
56 m²
603 sq ft
Energy rating
C
Score 73
Council tax
Band C
Tenure
Social Rental
Overview

About 20 Coniston Close

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

20 Coniston Close is a semi-detached house in Barnet, London, London (N20 0QL). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1950-1966 and council tax band C. At 56 m² this is the 2nd smallest of 25 units on EPC record in the building, where floor areas span 53–115 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (February 2023) shows a C (score 73). When first surveyed in January 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Average to Good, hot-water efficiency went from Average to Good and main heating went from Average to Good.

Across 1997–2020, sale prices on this property compounded at 9.3% per year. Today's modelled estimate of £294,000 is 10.2% below the 2020 sale of £327,500, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£543/sq ft) was about 83.8% above the typical sold price in the postcode. One planning record on file: new windows approved in 2009. Past consents include new windows, meaningful when judging how the property has evolved. Last sale on file: £327,500 in January 2020.

Before you decide

Everything you need to know about 20 Coniston Close

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

Signs of HMO activity in the areaLarger development activity nearby
£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.
Current Certificate(1 of 2)
Feb 2023

EPC Rating

A
B
C
C73
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
1.9 t/year
Occupancy
Rented

Property Improvements

Changes detected from historical EPC data

Feb 2023from Jan 2011
EPC improved fromD67toC73
Heating Controls
Prog + StatFull

Heating controls upgraded for better temperature management

Hot Water
AverageGood

Hot water efficiency improved

Windows
SecondaryFull Double

Windows upgraded, improving insulation

Wall Insulation
Partial InsulationInsulated Cavity

Wall insulation upgraded

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Mid 20th centuryGround Floor FlatEPC C

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £545 · Includes VAT

Planning

Planning history

Applications and permits filed against 20 Coniston Close, Barnet, London, N20 0QL, sourced from the PlanIt planning register.
  1. Nov 2009
    RenovationFull
    In report

    Replacement of existing windows with white uPVC windows.

    Agent
    United House Ltd
    New Windows
    Documents
    3 docs on file
    Reference
    F/03337/09
    View planning record
Before you offer

We flagged 2 things worth checking at 20 Coniston Close

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.

  • Signs of HMO activity in the area
  • Larger development activity nearby
£14.99

30-day money-back guarantee

Price

Sales history & valuation

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

20 Coniston Close has more than quadrupled in price since its earliest registered sale in 1997.

Current estimate

£294,000

Modelled from EPC, postcode comparables and a sale-price growth of 9.3% per year over 23 years.

See how we calculated this
Last sold (2020)

£327,500

Growth on file: 9.3% per year over 23 years.

Sales timeline

  1. 21 January 2020Most recent

    £327,500

    +679.8%over 23 years

  2. 17 January 1997

    £42,000

Median price across the last 5 sales in N20 0QL: £400,000 (2025–2014).

On the street

Versus other Coniston Close homes

Four headline reads against 20 similar flats on this street, drawn from the latest EPC and Land Registry data.

20 Coniston Close is notably below the street on years held.

Price per m²

£5,848

Street avg £3,623

Strongly above

Floor Area

56 m²

Street avg 65 m²

Strongly below

Habitable Rooms

3 rooms

Street avg 3 rooms

On par

CO₂ Emissions

1.9 t/year

Street avg 2.3 t/year

Above
Before you decide

Everything you need to know about 20 Coniston Close

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

Signs of HMO activity in the areaLarger development activity nearby
£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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£313k

1 Bruce Gardens, Barnet

N20 0SW

£266k

1 Deodora Close, Barnet

N20 0DQ

1 bed1 bath
£351k

1 Balfour Court, Balfour Grove, Barnet

N20 0SL

2 bed
£242k

1 Bookbinders Cottages, Bawtry Road, Barnet

N20 0SS

£387k

1 Coniston Close, Barnet

N20 0QL

2 bed1 bath
£442k

1 Capel Close, Barnet

N20 0QU

3 bed1 bath
£529k

1 Attfield Close, Barnet

N20 0LG

2 bed1 bath
£538k

1 Cameron Close, Myddelton Park, Barnet

N20 0HU

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

Rail-style transport is unusually close for this postcode.

Crime

4/mo

Rising year-on-year across the wider district.

Nearest stop

0.2 km

Derwent Crescent — bus stop.

Closest school

0.4 km

St John's CofE Primary and Nursery School. 46 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 0QL from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for N20 0QL

Daytime· 07:00 – 23:00

50.3dB

Low
Night-time road noise heatmap for N20 0QL

Night-time· 23:00 – 07:00

40.9dB

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 20 Coniston Close, Barnet, London, N20 0QL. Each answer is also embedded as structured data for search engines.