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11 Hardy House, Union Lane, Isleworth, TW7 6GU

EPC B
Property type
Mid terrace
Floor 02
Habitable rooms
3
From EPC
Floor area
70 m²
753 sq ft
Energy rating
B
Score 82
Council tax
Band D
Tenure
Owner Occupied
Overview

About 11 Hardy House

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

11 Hardy House is a mid-terrace house in Isleworth (TW7 6GU). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 2007-2011 and council tax band D. The latest certificate (June 2023) returns a B (score 82), comfortably above the UK average. The rating has held steady at B across 2 certificates since July 2010. Between certificates, wall efficiency dropped from Very Good to Good and lighting dropped from Very Good to Good. Main heating runs on biomass. At 70 m² this is the 9th smallest of 35 units on EPC record in the building, where floor areas span 46–97 m². The building's EPC ratings span C to B, with this unit at the top.

It changed hands recently, sold October 2025 for £146,000. Today's modelled estimate of £181,000 is 24% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£194/sq ft) was about 17% below the postcode norm.

Before you offer

Know exactly what you're buying at 11 Hardy House

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 nearby
£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.

11 Hardy House's carbon output is low for the local stock.

Current Certificate(1 of 2)
Jun 2023

EPC Rating

A
B
B82
C
D
E
F
G
Main Heating
—
Main Fuel
—
Hot Water
Good
Windows
Good
CO2 Emissions
0.4 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Jun 2023from Jul 2010
Low Energy Lighting
10%58%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 11 Hardy House, Union Lane, Isleworth, TW7 6GU, sourced from the PlanIt planning register.

11 Hardy House has no planning applications on record.

Notable planning nearby

6applications of note in the surrounding area

Before you offer

We flagged 2 things worth checking at 11 Hardy House

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.
Current estimate

£181,000

Modelled from EPC, postcode comparables and a sale-price growth of 0.2% per year over 7 years.

See how we calculated this
Last sold (2025)

£146,000

Growth on file: 0.2% per year over 7 years.

Sales timeline

  1. 13 October 2025Most recent

    £146,000

    +1.4%over 6 years

  2. 28 February 2019

    £144,000

Median price across the last 5 sales in TW7 6GU: £275,000 (2025–2022).

Before you offer

Everything we know about 11 Hardy House, 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
£14.99
Trusted by UK homebuyers
Preview of the full property report
On the street

Versus other Union Lane homes

Four headline reads against 34 similar flats on this street, drawn from the latest EPC and Land Registry data.

11 Hardy House is notably below the street on years held.

Price per m²

£2,086

Street avg £3,379

Below

Floor Area

70 m²

Street avg 69 m²

Below

Habitable Rooms

3 rooms

Street avg 3 rooms

Above

CO₂ Emissions

0.4 t/year

Street avg 0.7 t/year

On par
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£212k

1 Farnells Court, St Johns Road

TW7 6PD

£220k

1 Douglas Bader House, 9 Gibson Close

TW7 6NE

1 bed1 bath
£299k

1 Church Street

TW7 6BL

1 bed1 bath
£301k

1 Hardy House, Union Lane

TW7 6GU

£319k

1 Bridge Wharf Road

TW7 6BS

1 bed1 bath
£320k

1 Bourne Close

TW7 6HD

£331k

1 Christabel Close

TW7 6EJ

1 bed1 bath
£333k

1 Hawkfield Court, Woodlands Grove

TW7 6NU

2 bed
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.
Full Isleworth report

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

Twickenham Road / West Middlesex Hospital — bus stop.

Closest school

0.2 km

The Smallberry Green Primary School. 43 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 6GU from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for TW7 6GU

Daytime· 07:00 – 23:00

52.5dB

Low
Night-time road noise heatmap for TW7 6GU

Night-time· 23:00 – 07:00

44.0dB

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 11 Hardy House, Union Lane, Isleworth, TW7 6GU. Each answer is also embedded as structured data for search engines.