18 Commercial Street, Ystradgynlais, Swansea, SA9 1HD
About 18 Commercial Street
18 Commercial Street is an end-of-terrace house in Ystradgynlais, Swansea, Swansea (SA9 1HD). It has a recorded floor area of 131 m² (around 1410 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (July 2019) shows an E (score 42), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 82), a 3-band jump.
At 131 m² the property is well over the postcode median (87 m² across 7 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £203,000 is 26.9% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£113/sq ft) was about 59.5% above the typical sold price in the postcode. Most recent transfer: March 2022 at £160,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 18 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
18 Commercial Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
18 Commercial Street has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 18 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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£203,000
Modelled from EPC, postcode comparables.
£160,000
Recorded with HM Land Registry.
Sales timeline
29 March 2022Most recent
£160,000
Median price across the last 5 sales in SA9 1HD: £50,000 (2021–1999).
Nearby sales in SA9 1HD
Everything we know about 18 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
18 Commercial Street is notably below the street on epc rating.
EPC Rating
42 (E)
Street avg 56 (D)
Floor Area
131 m²
Street avg 91 m²
CO₂ Emissions
10.0 t/year
Street avg 5.8 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.