What kind of home is Flat 15, 1 William Street, SL1 1GZ?

Flat 15, 1 William Street, SL1 1GZ is a mid-terrace house.

When did Flat 15, 1 William Street, SL1 1GZ last change hands?

Flat 15, 1 William Street, SL1 1GZ last sold for £199,950 in March 2023, around 3 years ago. Source: HM Land Registry.

What is the EPC rating for Flat 15, 1 William Street, SL1 1GZ?

The current EPC rating for Flat 15, 1 William Street, SL1 1GZ is B with a score of 82 out of 100, lodged in January 2021. Source: EPC Register.

How big is Flat 15, 1 William Street, SL1 1GZ?

Flat 15, 1 William Street, SL1 1GZ has a recorded floor area of 36 m² (388 sq ft). That makes it about 16% smaller than the median EPC-recorded property in SL1 1GZ. Source: EPC Register.

Which area is Flat 15, 1 William Street, SL1 1GZ in?

Flat 15, 1 William Street, SL1 1GZ sits in Slough. It falls within the SL1 postcode district.

How safe is the area around Flat 15, 1 William Street, SL1 1GZ?

Police records around Flat 15, 1 William Street, SL1 1GZ show an average of 18 reported crimes per month over the last 13 months. Violent crime makes up roughly 45% of reports, the most common category. The overall trend is rising (24% versus the prior period). Source: Police UK.

What schools are near Flat 15, 1 William Street, SL1 1GZ?

The closest primary school to Flat 15, 1 William Street, SL1 1GZ is St Mary's Church of England Primary School (865m), one of 18 primaries within walking distance. The closest secondary is Slough and Eton Church of England Business and Enterprise College (816m), with 13 secondaries in the surrounding area.

What transport links are near Flat 15, 1 William Street, SL1 1GZ?

The closest bus stop to Flat 15, 1 William Street, SL1 1GZ is Wellington Street stop E, 58m away. The nearest bus option is Brunel Way, 299m away.

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Flat 15, 1 William Street, Slough, SL1 1GZ

EPC B

Property type

Mid terrace

Floor 2

Floor area

36 m²

388 sq ft

Energy rating

Score 82

Overview

About Flat 15

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

Flat 15 is a mid-terrace house in Slough (SL1 1GZ). It has a recorded floor area of 36 m² (around 388 sq ft). At 36 m² this is the smallest unit on EPC record across the building (36–62 m²). The building's EPC ratings span C to B, with this unit at the top. The latest certificate (January 2021) returns a B (score 82), comfortably above the UK average.

At 36 m² it's 16.3% smaller than the typical home in the postcode (43 m² median across 63 EPCs). Sold March 2023 for £199,950.

Before you decide

Everything you need to know about Flat 15

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

Signs of HMO activity in the areaLarger development activity nearby

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Energy

Energy performance

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

Flat 15's carbon output is low for the local stock.

EPC Rating

B82

Main Heating

—

Main Fuel

—

Hot Water

Good

Windows

Very Good

CO2 Emissions

0.6 t/year

Occupancy

—

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2nd Floor FlatEPC B

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Planning

Planning history

Applications and permits filed against Flat 15, 1 William Street, Slough, SL1 1GZ, sourced from the PlanIt planning register.

Flat 15 has no planning applications on record.

But the area is active

12 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

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

Current estimate

£192,000

Modelled from EPC, postcode comparables.

See how we calculated this

Last sold (2023)

£199,950

Recorded with HM Land Registry.

Sales timeline

6 March 2023Most recent
£199,950

Median price across the last 5 sales in SL1 1GZ: £202,500 (2024–2023).

Nearby sales in SL1 1GZ

On the street

Versus other William Street homes

Four headline reads against 63 similar flats on this street, drawn from the latest EPC and Land Registry data.

Flat 15 outperforms the street on co₂ emissions by a wide margin.

Price per m²

£5,554

Street avg £4,626

Above

Floor Area

36 m²

Street avg 49 m²

Strongly below

CO₂ Emissions

0.6 t/year

Street avg 0.8 t/year

Strongly above

Years Held

3 years

Street avg 4 years

Strongly below

Before you decide

Everything you need to know about Flat 15

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

Signs of HMO activity in the areaLarger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

The data behind every report

Comparables

Similar properties nearby

Rising year-on-year across the wider district.

Nearest stop

0.1 km

Wellington Street stop E — bus stop.

Closest school

0.8 km

Slough and Eton Church of England Business and Enterprise College. 31 schools nearby.

Go deeper on the local area

A Local Area 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 SL1 1GZ from Defra's strategic mapping. The pin marks this postcode's centroid.

Daytime· 07:00 – 23:00

53.8dB

Low

Night-time road noise heatmap for SL1 1GZ

Night-time· 23:00 – 07:00

44.4dB

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 15, 1 William Street, Slough, SL1 1GZ. Each answer is also embedded as structured data for search engines.