15 Commercial Street, Ystradgynlais, Swansea, SA9 1HD
About 15 Commercial Street
15 Commercial Street is a mid-terrace house in Ystradgynlais, Swansea, Swansea (SA9 1HD). It has a recorded floor area of 87 m² (around 936 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (March 2015) shows a C (score 73). The recommended improvements would push it to B (score 89). The latest certificate is from March 2015, so improvements made since then won't be reflected.
Its energy rating outperforms most of the postcode (better than 86% of similar EPCs). Today's modelled estimate of £181,000 is 39.2% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£139/sq ft) was about 95.1% above the typical sold price in the postcode. Last changed hands 10 years ago, in March 2016. 2 planning records sit against the property, 0 approved, 1 refused.
Know exactly what you're buying at 15 Commercial 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
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
15 Commercial Street's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 17 Mar 2025
EPC Rating
Planning history
- Mar 2011Change of UseFullIn report
Full: Change of use from part commercial/part residential to full residential
- Documents
- 1 doc on file
- Reference
- P/2011/0021
- Oct 2010Change of UseFullIn report
Full: change of use from part commercial/part residential to full residential
- Documents
- 1 doc on file
- Reference
- P/2010/1037
We flagged 1 thing worth checking at 15 Commercial 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
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Sales history & valuation
15 Commercial Street valuation sits well clear of the typical sold price in this postcode.
£181,000
Modelled from EPC, postcode comparables.
£130,000
Recorded with HM Land Registry.
Sales timeline
11 March 2016Most recent
£130,000
Median price across the last 5 sales in SA9 1HD: £50,000 (2022–1999).
Nearby sales in SA9 1HD
Everything we know about 15 Commercial 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

Versus other Commercial Street homes
On epc rating, 15 Commercial Street stands well clear of the street.
EPC Rating
73 (C)
Street avg 49 (E)
Floor Area
87 m²
Street avg 102 m²
CO₂ Emissions
3.1 t/year
Street avg 7.5 t/year
Habitable Rooms
6 rooms
Street avg 5 rooms
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Commercial Street — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.