How energy efficient is 23 Hardy House, Union Lane, TW7 6GU?

The current EPC rating for 23 Hardy House, Union Lane, TW7 6GU is C with a score of 79 out of 100, lodged in December 2025. It has dropped from a B recorded in July 2010. Source: EPC Register.

What is the floor area of 23 Hardy House, Union Lane, TW7 6GU?

23 Hardy House, Union Lane, TW7 6GU has a recorded floor area of 48 m² (517 sq ft). That makes it about 33% smaller than the median EPC-recorded property in TW7 6GU. Source: EPC Register.

How is 23 Hardy House, Union Lane, TW7 6GU heated?

The latest EPC at 23 Hardy House, Union Lane, TW7 6GU records mains gas as the main heating fuel. Source: EPC Register.

What council tax band is 23 Hardy House, Union Lane, TW7 6GU?

23 Hardy House, Union Lane, TW7 6GU is in council tax band C.

Where is 23 Hardy House, Union Lane, TW7 6GU located?

23 Hardy House, Union Lane, TW7 6GU sits in Isleworth. It falls within the TW7 postcode district.

How safe is the area around 23 Hardy House, Union Lane, TW7 6GU?

Police records around 23 Hardy House, Union Lane, TW7 6GU show an average of 3 reported crimes per month over the last 10 months. Vehicle crime makes up roughly 24% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

Which schools serve 23 Hardy House, Union Lane, TW7 6GU?

The closest primary school to 23 Hardy House, Union Lane, TW7 6GU is The Smallberry Green Primary School (196m), one of 27 primaries within walking distance. The closest secondary is The Green School for Boys (314m), with 16 secondaries in the surrounding area.

What transport links are near 23 Hardy House, Union Lane, TW7 6GU?

The closest bus stop to 23 Hardy House, Union Lane, TW7 6GU is Twickenham Road / West Middlesex Hospital, 81m away. The nearest rail option is Syon Lane Rail Station, 730m away.

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

Habitable rooms

From EPC

Floor area

48 m²

517 sq ft

Energy rating

Score 79

Council tax

Band C

Tenure

Owner Occupied

Overview

About 23 Hardy House

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

23 Hardy House is a property in Isleworth (TW7 6GU). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 2007-2011 and council tax band C. At 48 m² this is the 6th 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 bottom. On EPC score it ranks last in the building (79 versus a best of 87). The latest certificate (December 2025) shows a C (score 79), near the top of the C band. Earlier certificates rated it B (July 2010); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.

At 48 m² it sits well below the postcode median (72 m² across 34 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 82% of similar EPCs).

Before you offer

Know exactly what you're buying at 23 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

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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.

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

Current Certificate(1 of 2)

Dec 2025

EPC Rating

C79

Main Heating

—

Main Fuel

Gas

Hot Water

Average

Windows

Average

CO2 Emissions

1.1 t/year

Occupancy

Owner Occupied

Property Improvements

Changes detected from historical EPC data

Dec 2025from Jul 2010

EPC improved fromB87toC79

Hot Water

GoodAverage

Hot water efficiency decreased

Low Energy Lighting

10%88%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 23 Hardy House, Union Lane, Isleworth, TW7 6GU, sourced from the PlanIt planning register.

23 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 23 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.

23 Hardy House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

Current estimate

£201,000

Modelled from EPC, postcode comparables.

See how we calculated this

No sales recorded with HM Land Registry

That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.

Median price across the last 5 sales in TW7 6GU: £266,000 (2025–2022).

Nearby sales in TW7 6GU

Before you offer

Everything we know about 23 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

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.

23 Hardy House is notably below the street on epc rating.

EPC Rating

79 (C)

Street avg 83 (B)

Strongly below

Floor Area

48 m²

Street avg 70 m²

Strongly below

CO₂ Emissions

1.1 t/year

Street avg 0.6 t/year

Below

Habitable Rooms

2 rooms

Street avg 3 rooms

Strongly below

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