What kind of home is 25 King William Street, SN1 3LB?

25 King William Street, SN1 3LB is a 2-bedroom mid-terrace house, which has been extended.

When did 25 King William Street, SN1 3LB last change hands?

25 King William Street, SN1 3LB last sold for £162,500 in August 2019, around 7 years ago. Land Registry has 4 sales on record going back to £110,500 in May 2002. Source: HM Land Registry.

Has 25 King William Street, SN1 3LB appreciated in value?

Across 4 sales between May 2002 and August 2019, 25 King William Street, SN1 3LB rose from £110,500 to £162,500, a change of £52,000. That works out to roughly +2.3% per year compounded over 17 years. Source: HM Land Registry.

What energy rating does 25 King William Street, SN1 3LB have?

The current EPC rating for 25 King William Street, SN1 3LB is C with a score of 73 out of 100, lodged in October 2021. It has improved from a D recorded in November 2011. The assessor estimates the property could reach a B. Source: EPC Register.

How big is 25 King William Street, SN1 3LB?

25 King William Street, SN1 3LB has a recorded floor area of 101 m² (1,087 sq ft), around 51 m² per bedroom. That makes it about 23% larger than the median EPC-recorded property in SN1 3LB. Source: EPC Register.

What heating system does 25 King William Street, SN1 3LB use?

The latest EPC at 25 King William Street, SN1 3LB records mains gas as the main heating fuel. Source: EPC Register.

What is the council tax band for 25 King William Street, SN1 3LB?

25 King William Street, SN1 3LB is in council tax band C.

Which area is 25 King William Street, SN1 3LB in?

25 King William Street, SN1 3LB sits in Swindon. It falls within the SN1 postcode district.

What is crime like near 25 King William Street, SN1 3LB?

Police records around 25 King William Street, SN1 3LB show an average of 7 reported crimes per month over the last 14 months. Violent crime makes up roughly 51% of reports, the most common category. The overall trend is rising (156% versus the prior period). Source: Police UK.

What schools are near 25 King William Street, SN1 3LB?

The closest primary school to 25 King William Street, SN1 3LB is King William Street Church of England Primary School (49m), one of 21 primaries within walking distance. The closest secondary is The Commonweal School (744m), with 7 secondaries in the surrounding area.

What transport links are near 25 King William Street, SN1 3LB?

The closest bus stop to 25 King William Street, SN1 3LB is Avenue Road, 108m away. In total there are 30 bus stops within the surrounding area.

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25 King William Street, Swindon, SN1 3LB

4 sales on record

Property type

Mid terrace

Bedrooms

Bathroom

Floor area

101 m²

1087 sq ft

Energy rating

Score 73

Council tax

Band C

Tenure

Private Rental

Overview

About 25 King William Street

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

25 King William Street is a two-bedroom mid-terrace house in Swindon (SN1 3LB). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (October 2021) shows a C (score 73). When first surveyed in November 2011 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good and lighting went from Good to Very Good. The recommended improvements would push it to B (score 86). Other recorded features include a basement. Records show the property has been extended at some point in its history.

At 101 m² it's 23.2% larger than the typical home in the postcode (82 m² median across 19 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Most recent transfer: August 2019 at £162,500. Across the public record there are 4 sales, relatively high churn for a single property. Across 2002–2019, sale prices on this property compounded at 2.3% per year. Today's modelled estimate of £238,000 is 46.5% above the 2019 sale price.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

Bedrooms2
Bathrooms1
Dining roomYes
BasementYes

Outside

Private gardenSouth-facing

Building

Previously extendedYes
RefurbishedYes

Before you decide

Everything you need to know about 25 King William Street

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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The data behind every report

Energy

Energy performance

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

25 King William Street ranks among the most efficient homes in the postcode for energy use.

Current Certificate(1 of 2)

Oct 2021

EPC Rating

C73

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Average

CO2 Emissions

3.0 t/year

Occupancy

Rented

Property Improvements

Changes detected from historical EPC data

Oct 2021from Nov 2011

EPC improved fromD67toC73

Heating Controls

Prog + StatFull

Heating controls upgraded for better temperature management

Roof

AverageGood

Roof insulation improved

Low Energy Lighting

60%100%

More low energy lighting installed

Get a survey for this property

Level 3 Building Survey

Victorian-eraMid-Terrace HouseEPC CPre-1919 buildExtended multiple times (2+ extensions)Solid (non-cavity) walls

Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £885 · Includes VAT

Planning

Planning history

Applications and permits filed against 25 King William Street, Swindon, SN1 3LB, sourced from the PlanIt planning register.

25 King William Street has no planning applications on record.

But the area is active

31 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.

25 King William Street valuation sits well clear of the typical sold price in this postcode.

Current estimate

£238,000

Modelled from EPC, postcode comparables and a sale-price growth of 2.3% per year over 17 years.

See how we calculated this

Last sold (2019)

£162,500

Growth on file: 2.3% per year over 17 years.

Sales timeline

7 August 2019Most recent
£162,500
+20.4%over 15 years
27 April 2004
£135,000
+1.5%
31 October 2003
£133,000
+20.4%over 1 year
23 May 2002
£110,500

Median price across the last 5 sales in SN1 3LB: £265,000 (2025–2021).

Nearby sales in SN1 3LB

On the street

Versus other King William Street homes

Four headline reads against 19 similar houses on this street, drawn from the latest EPC and Land Registry data.

On epc rating, 25 King William Street stands well clear of the street.

Price per m²

£1,609

Street avg £2,009

Below

Floor Area

101 m²

Street avg 89 m²

Strongly above

Habitable Rooms

5 rooms

Street avg 5 rooms

Above

CO₂ Emissions

3.0 t/year

Street avg 4.4 t/year

Strongly above

Before you decide

Everything you need to know about 25 King William Street

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

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

£228k

1 King William Street

SN1 3LB

2 bed1 bath

£206k

1 Dover Street

SN1 3JP

2 bed

£205k

1 Cannon Street

SN1 3DD

2 bed1 bath

£199k

1 Edmund Street

SN1 3JE

2 bed1 bath

£186k

1 King John Street

SN1 3DB

2 bed1 bath

£255k

1 Durham Street

SN1 3HS

3 bed1 bath

£220k

1 Hythe Road

SN1 3NZ

1 bed6 bath

£219k

1 Eastcott Road

SN1 3LS

3 bed

Area

The neighbourhood at a glance

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

Full Swindon report

Reported crime in the wider district is trending notably upward year-on-year.

Crime

7/mo

Rising year-on-year across the wider district.

Nearest stop

0.1 km

Avenue Road — bus stop.

Closest school

0.0 km

King William Street Church of England Primary School. 28 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 SN1 3LB from Defra's strategic mapping. The pin marks this postcode's centroid.

Daytime· 07:00 – 23:00

52.0dB

Low

Night-time road noise heatmap for SN1 3LB

Night-time· 23:00 – 07:00

41.6dB

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 25 King William Street, Swindon, SN1 3LB. Each answer is also embedded as structured data for search engines.