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Flat A, 23 St Johns Road, Isleworth, TW7 6NB

7 planning records
Property type
Mid terrace
Floor 01
Habitable rooms
2
From EPC
Floor area
24 m²
258 sq ft
Energy rating
D
Score 55
Council tax
Band B
Tenure
Private Rental
Overview

About Flat A

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

Flat A is a mid-terrace house in Isleworth (TW7 6NB). It has a recorded floor area of 24 m² (around 258 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (December 2021) shows a D (score 55), a step below the typical UK home. When first surveyed in January 2011 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor and hot-water efficiency went from Very Poor to Average; while main heating dropped from Good to Very Poor. The recommended improvements would push it to C (score 75). Main heating runs on electricity.

Today's modelled estimate of £281,000 is 46% below the 2022 sale of £520,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£2,013/sq ft) was about 430.6% above the typical sold price in the postcode. At 24 m² it sits well below the postcode median (46 m² across 21 EPCs), making it one of the more compact homes locally. 7 planning records sit against the property, 0 approved, 3 refused. Last sale on file: £520,000 in June 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you offer

Know exactly what you're buying at Flat A

Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.

Already flagged here

Signs of HMO activity in the areaLarger development activity nearbyA planning decision worth checking
£14.99
Trusted by UK homebuyers

Valuation

against the asking price

Risks

planning & flood

Sold prices

similar homes nearby

Trends

the local market

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 7)
Dec 2021

EPC Rating

A
B
C
D
D55
E
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Average
Windows
Average
CO2 Emissions
1.7 t/year
Occupancy
Rented

Property Improvements

Changes detected from historical EPC data

Apr 2011from Jan 2011
EPC improved fromF38toD56
Hot Water
ImmersionMain System

Hot water system upgraded

Low Energy Lighting
66%20%

Low energy lighting percentage decreased

Mar 2013from Apr 2011
Heating Controls
ThermostatFull

Heating controls upgraded for better temperature management

Jul 2020from Mar 2013
EPC improved fromD58toF35
Heating System
Gas BoilerRoom Heaters

Heating system changed

Main Fuel
GasElectric

Changed to a more efficient fuel source

Heating Controls
FullThermostat

Heating controls changed

Hot Water
Main SystemImmersion

Hot water system changed

Windows
Partial DoubleFull Double

Windows upgraded, improving insulation

Dec 2021from Jul 2020
EPC improved fromF35toD55
Hot Water
ImmersionCommunity

Hot water system upgraded

Roof Insulation
UninsulatedWell Insulated

Loft insulation installed or upgraded to 250mm+

Low Energy Lighting
20%57%

More low energy lighting installed

Dec 2021from Dec 2021
Hot Water
GoodAverage

Hot water efficiency decreased

Walls
Very PoorPoor

Wall insulation improved

Planning

Planning history

Applications and permits filed against Flat A, 23 St Johns Road, Isleworth, TW7 6NB, sourced from the PlanIt planning register.

A subdivision application was refused at Flat A in 2024.

  1. Sept 2024
    Loft ConversionFull
    In report

    The conversion of the existing 3 Bed Apartment into a 1B1P and a 1B1P Apartment, including the new attic dormer (Reduced in width as agreed with Planning Officer) and re-aligned front fa??ade

    Documents
    23 docs on file
    Reference
    P/2024/3142
    View planning record
  2. Aug 2024
    SubdivisionFull
    In report

    Extension: Rear of property

    Erection of a rear roof extension with three front roof windows and a part first floor front extension to re-align the front facade to convert the existing apartment to two apartments

    Extension
    Documents
    15 docs on file
    Reference
    P/2024/2177
    View planning record
Before you offer

We flagged 3 things worth checking at Flat A

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
  • A planning decision worth checking
£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.

Latest sale on Flat A was the highest on Land Registry record across the postcode.

Current estimate

£281,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2022)

£520,000

Recorded with HM Land Registry.

Sales timeline

  1. 21 June 2022Most recent

    £520,000

Median price across the last 5 sales in TW7 6NB: £221,000 (2022–2007).

Before you offer

Everything we know about Flat A, in one report

What it's really worth, what could be wrong, and the planning, sales and area data in full.

What we flagged

  • Signs of HMO activity in the area
  • Larger development activity nearby
  • A planning decision worth checking
£14.99
Trusted by UK homebuyers
Preview of the full property report
On the street

Versus other St Johns Road homes

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

On price per m², Flat A stands well clear of the street.

Price per m²

£21,667

Street avg £3,945

Strongly above

Floor Area

24 m²

Street avg 47 m²

Strongly below

Habitable Rooms

2 rooms

Street avg 3 rooms

Below

CO₂ Emissions

1.7 t/year

Street avg 2.2 t/year

Above
Area

The neighbourhood at a glance

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

Rail-style transport is unusually close for this postcode.

Crime

3/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Isleworth Station / Rennels Way — bus stop.

Closest school

0.3 km

West Thames College. 47 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 TW7 6NB from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for TW7 6NB

Daytime· 07:00 – 23:00

53.6dB

Low
Night-time road noise heatmap for TW7 6NB

Night-time· 23:00 – 07:00

43.3dB

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 Flat A, 23 St Johns Road, Isleworth, TW7 6NB. Each answer is also embedded as structured data for search engines.