What type of property is 11 King William Street, SN1 3LB?

11 King William Street, SN1 3LB is a 2-bedroom mid-terrace house.

What was the last sold price for 11 King William Street, SN1 3LB?

11 King William Street, SN1 3LB last sold for £215,000 in November 2021, around 5 years ago. Before that, it sold for £89,950 in January 2009, so prices have been rising over 13 years on record. Source: HM Land Registry.

How has the value of 11 King William Street, SN1 3LB changed over time?

Across 2 sales between January 2009 and November 2021, 11 King William Street, SN1 3LB rose from £89,950 to £215,000, a change of £125,050. That works out to roughly +7% per year compounded over 13 years. Source: HM Land Registry.

What is the EPC rating for 11 King William Street, SN1 3LB?

The current EPC rating for 11 King William Street, SN1 3LB is D with a score of 60 out of 100, lodged in September 2021. It has improved from a E recorded in October 2008. The assessor estimates the property could reach a B. Source: EPC Register.

What is the floor area of 11 King William Street, SN1 3LB?

11 King William Street, SN1 3LB has a recorded floor area of 73 m² (786 sq ft), around 37 m² per bedroom. That makes it about 14% smaller than the median EPC-recorded property in SN1 3LB. Source: EPC Register.

How is 11 King William Street, SN1 3LB heated?

The latest EPC at 11 King William Street, SN1 3LB records mains gas as the main heating fuel. Source: EPC Register.

What council tax band is 11 King William Street, SN1 3LB?

11 King William Street, SN1 3LB is in council tax band B. That sits at the lower end of the A-H ladder, typically reflecting smaller floor areas or lower 1991 valuations.

Where is 11 King William Street, SN1 3LB located?

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

What is crime like near 11 King William Street, SN1 3LB?

Police records around 11 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.

Which schools serve 11 King William Street, SN1 3LB?

The closest primary school to 11 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.

How well connected is 11 King William Street, SN1 3LB?

The closest bus stop to 11 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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11 King William Street, Swindon, SN1 3LB

Property type

Mid terrace

Bedrooms

Bathroom

Floor area

73 m²

786 sq ft

Energy rating

Score 60

Council tax

Band B

Tenure

Owner Occupied

Overview

About 11 King William Street

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

11 King William Street is a two-bedroom mid-terrace house in Swindon (SN1 3LB). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (September 2021) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in October 2008 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Average and lighting went from Very Poor to Very Good. The recommended improvements would lift it to B (score 88), a 2-band jump.

Across 2009–2021, sale prices on this property compounded at 7% per year. On a £-per-square-foot basis, the last sale (£274/sq ft) was about 104.1% above the typical sold price in the postcode. Most recent transfer: November 2021 at £215,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

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

Before you decide

Everything you need to know about 11 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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Energy

Energy performance

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

Recommended upgrades on file would lift this property by multiple EPC bands.

Current Certificate(1 of 2)

Sept 2021

EPC Rating

D60

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Average

CO2 Emissions

3.9 t/year

Occupancy

Owner Occupied

Property Improvements

Changes detected from historical EPC data

Sept 2021from Oct 2008

EPC improved fromE47toD60

Heating Controls

ThermostatFull

Heating controls upgraded for better temperature management

Windows

Partial DoubleFull Double

Windows upgraded, improving insulation

Low Energy Lighting

0%100%

More low energy lighting installed

Get a survey for this property

Level 3 Building Survey

Victorian-eraMid-Terrace HouseEPC DPre-1919 buildSolid (non-cavity) walls

Because the property was built before 1919 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 11 King William Street, Swindon, SN1 3LB, sourced from the PlanIt planning register.

11 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.

11 King William Street has more than doubled in price since the earliest registered sale in 2009.

Current estimate

£231,000

Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 13 years.

See how we calculated this

Last sold (2021)

£215,000

Growth on file: 7.0% per year over 13 years.

Sales timeline

11 November 2021Most recent
£215,000
+139.0%over 12 years
23 January 2009
£89,950

Median price across the last 5 sales in SN1 3LB: £265,000 (2025–2019).

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.

Price per m² for 11 King William Street runs comfortably ahead of the street norm.

Price per m²

£2,945

Street avg £1,925

Strongly above

Floor Area

73 m²

Street avg 90 m²

Strongly below

Habitable Rooms

4 rooms

Street avg 5 rooms

Below

CO₂ Emissions

3.9 t/year

Street avg 4.3 t/year

On par

Before you decide

Everything you need to know about 11 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

£220k

1 Hythe Road

SN1 3NZ

1 bed6 bath

£219k

1 Eastcott Road

SN1 3LS

3 bed

£255k

1 Durham Street

SN1 3HS

3 bed1 bath

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