What kind of home is 6 William Street, SA9 1AT?

6 William Street, SA9 1AT is a 2-bedroom semi-detached house.

When did 6 William Street, SA9 1AT last change hands?

6 William Street, SA9 1AT last sold for £75,000 in May 2013, around 13 years ago. Source: HM Land Registry.

What is the EPC rating for 6 William Street, SA9 1AT?

The current EPC rating for 6 William Street, SA9 1AT is E with a score of 42 out of 100, lodged in October 2012. The assessor estimates the property could reach a B. Source: EPC Register.

How big is 6 William Street, SA9 1AT?

6 William Street, SA9 1AT has a recorded floor area of 85 m² (915 sq ft), around 43 m² per bedroom. Source: EPC Register.

What heating system does 6 William Street, SA9 1AT use?

The latest EPC at 6 William Street, SA9 1AT records mains gas as the main heating fuel. Source: EPC Register.

What is the council tax band for 6 William Street, SA9 1AT?

6 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.

Which area is 6 William Street, SA9 1AT in?

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

What is crime like near 6 William Street, SA9 1AT?

Police records around 6 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.

What transport links are near 6 William Street, SA9 1AT?

The closest bus stop to 6 William Street, SA9 1AT is Glanrhyd Hospital, 80m away. In total there are 30 bus stops within the surrounding area.

Calculators

Featured

UK House Price Map

30 years of UK sold prices mapped by postcode district.

Postcode-level detail
Compare areas side by side

Open the map

6 William Street, Ystradgynlais, Swansea, SA9 1AT

Property type

Semi-detached

Bedrooms

Floor area

85 m²

915 sq ft

Energy rating

Score 42

Council tax

Band B

Tenure

Owner Occupied

Overview

About 6 William Street

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

6 William Street is a two-bedroom semi-detached house in Ystradgynlais, Swansea, Swansea (SA9 1AT). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (October 2012) shows an E (score 42), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 85), a 3-band jump. The latest certificate is from October 2012, so improvements made since then won't be reflected.

Today's modelled estimate of £146,000 sits 94.7% above the 2013 sale of £75,000. It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs). 13 years since the last transfer (May 2013).

Before you offer

Know exactly what you're buying at 6 William Street

Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.

Already flagged here

Larger development activity nearby

£9.99£14.99

Launch offer · save £5

Trusted by UK homebuyers

Valuation

against the asking price

Risks

planning & flood

Sold prices

similar homes nearby

Trends

the local market

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
Dining roomYes

Outside

Garagesingle

Building

Heating systemgas

Energy

Energy performance

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

6 William Street's carbon output runs well above what efficient homes in the postcode produce.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 11 Oct 2022

EPC Rating

E42

Main Heating

Gas

Main Fuel

Gas

Hot Water

Poor

Windows

Average

CO2 Emissions

6.1 t/year

Occupancy

Owner Occupied

Planning

Planning history

Applications and permits filed against 6 William Street, Ystradgynlais, Swansea, SA9 1AT, sourced from the PlanIt planning register.

6 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 6 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.

Larger development activity nearby

£9.99£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.

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

Current estimate

£146,000

Modelled from EPC, postcode comparables.

See how we calculated this

Last sold (2013)

£75,000

Recorded with HM Land Registry.

Sales timeline

23 May 2013Most recent
£75,000

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

Nearby sales in SA9 1AT

Before you offerLaunch offer · save £5

Everything we know about 6 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

£9.99£14.99

Trusted by UK homebuyers

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.

6 William Street is notably below the street on epc rating.

Price per m²

£882

Street avg £1,116

Below

Floor Area

85 m²

Street avg 88 m²

On par

Habitable Rooms

5 rooms

Street avg 4 rooms

Above

CO₂ Emissions

6.1 t/year

Street avg 4.8 t/year

Below

Comparables

Similar properties nearby

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

£154k

1 Brewers Cottage, Pelican Street, Ystradgynlais

SA9 1LG

2 bed

£164k

1 Brooklands Terrace, Abercrave

SA9 1UF

2 bed

£201k

1 Caemaen, Brecon Road, Penycae

SA9 1YN

2 bed

£188k

1 Caehopkin Cottage, Caehopkin Road, Abercrave

SA9 1TX

3 bed1 bath

£100k

1 Caerlan Cottages, Caerlan, Abercrave

SA9 1SZ

1 bed

£240k

1 2 Metz Cottages, Ystradgynlais

SA9 1SB

3 bed1 bath

£248k

1 Abercrave Villas, Heol Tawe, Abercrave

SA9 1TN

3 bed

£256k

1 Brynygroes Cottages, Ystradgynlais

SA9 1LE

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 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 6 William Street, Ystradgynlais, Swansea, SA9 1AT. Each answer is also embedded as structured data for search engines.