What type of property is 10 William Street, SA9 1AT?

10 William Street, SA9 1AT is an end-of-terrace house.

What was the last sold price for 10 William Street, SA9 1AT?

10 William Street, SA9 1AT last sold for £65,000 in April 2005, around 21 years ago. Source: HM Land Registry.

What energy rating does 10 William Street, SA9 1AT have?

The current EPC rating for 10 William Street, SA9 1AT is E with a score of 54 out of 100, lodged in September 2017. The assessor estimates the property could reach a B. Source: EPC Register.

What is the floor area of 10 William Street, SA9 1AT?

10 William Street, SA9 1AT has a recorded floor area of 68 m² (732 sq ft). That makes it about 20% smaller than the median EPC-recorded property in SA9 1AT. Source: EPC Register.

How is 10 William Street, SA9 1AT heated?

The latest EPC at 10 William Street, SA9 1AT records mains gas as the main heating fuel. Source: EPC Register.

What council tax band is 10 William Street, SA9 1AT?

10 William Street, SA9 1AT 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 10 William Street, SA9 1AT located?

10 William Street, SA9 1AT sits in Ystradgynlais, Swansea, Swansea. It falls within the SA9 postcode district.

Is 10 William Street, SA9 1AT in a safe area?

Police records around 10 William Street, SA9 1AT show an average of 6 reported crimes per month over the last 9 months. Violent crime makes up roughly 72% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

How well connected is 10 William Street, SA9 1AT?

The closest bus stop to 10 William Street, SA9 1AT is Glanrhyd Hospital, 80m away. In total there are 30 bus stops within the surrounding area.

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10 William Street, Ystradgynlais, Swansea, SA9 1AT

Property type

End terrace

Habitable rooms

From EPC

Floor area

68 m²

732 sq ft

Energy rating

Score 54

Council tax

Band B

Tenure

Owner Occupied

Overview

About 10 William Street

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

10 William Street is an end-of-terrace house in Ystradgynlais, Swansea, Swansea (SA9 1AT). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (September 2017) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 85), a 3-band jump.

Untraded for 21 years, with the last transfer in April 2005. Today's modelled estimate of £158,000 sits 143.1% above the 2005 sale of £65,000. At 68 m² it's 20% smaller than the typical home in the postcode (85 m² median across 13 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs).

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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.

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

EPC Rating

E54

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Good

CO2 Emissions

4.5 t/year

Occupancy

Owner Occupied

Planning

Planning history

Applications and permits filed against 10 William Street, Ystradgynlais, Swansea, SA9 1AT, sourced from the PlanIt planning register.

10 William Street has no planning applications on record.

Notable planning nearby

2applications of note in the surrounding area

Before you offer

We flagged 1 thing worth checking at 10 William Street

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.

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Price

Sales history & valuation

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

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

Current estimate

£158,000

Modelled from EPC, postcode comparables.

See how we calculated this

Last sold (2005)

£65,000

Recorded with HM Land Registry.

Sales timeline

21 April 2005Most recent
£65,000

Median price across the last 5 sales in SA9 1AT: £127,000 (2025–2019).

Nearby sales in SA9 1AT

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Everything we know about 10 William Street, in one report

What it's really worth, what could be wrong, and the planning, sales and area data in full.

What we flagged

Larger development activity nearby

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On the street

Versus other William Street homes

Four headline reads against 13 similar houses on this street, drawn from the latest EPC and Land Registry data.

On years held, 10 William Street stands well clear of the street.

Price per m²

£956

Street avg £1,110

Below

Floor Area

68 m²

Street avg 89 m²

Strongly below

Habitable Rooms

5 rooms

Street avg 4 rooms

Above

CO₂ Emissions

4.5 t/year

Street avg 4.9 t/year

Above

Comparables

Similar properties nearby

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

£156k

1 Ael Y Bryn, Ystradgynlais

SA9 1HY

£154k

1 Brewers Cottage, Pelican Street, Ystradgynlais

SA9 1LG

2 bed

£164k

1 Brooklands Terrace, Abercrave

SA9 1UF

2 bed

£168k

1 Abercrave Cottages, Hennoyadd Road, Abercrave

SA9 1UU

£175k

1 Caehopkin Road, Caehopkin, Abercrave

SA9 1TZ

£140k

1 Bryn Gorof, Lower Cwmtwrch

SA9 1DN

£134k

1 Bryn Heulog, Ystradgynlais

SA9 1HZ

£188k

1 Caehopkin Cottage, Caehopkin Road, Abercrave

SA9 1TX

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 Swansea district page.

Full Swansea report

Crime

6/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Glanrhyd Hospital — bus stop.

Go deeper on the local area

The full report breaks down crime, transport links, schools and air quality in depth.

Map

Everything within walking distance

Schools, transport stops and scenic spots near this property — 30 points of interest in total.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 10 William Street, Ystradgynlais, Swansea, SA9 1AT. Each answer is also embedded as structured data for search engines.