11 Rhydwen, Ystradgynlais, Swansea, SA9 1BB
About 11 Rhydwen
11 Rhydwen is a two-bedroom semi-detached house in Ystradgynlais, Swansea, Swansea (SA9 1BB). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 1967-1975 and council tax band A. At 58 m² this is the smallest unit on EPC record across the building (58–70 m²). The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (76 versus a worst of 64). The latest certificate (October 2024) shows a C (score 76), near the top of the C band. When first surveyed in May 2014 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good and hot-water efficiency went from Poor to Good; while wall efficiency dropped from Good to Average.
Across 2008–2014, sale prices on this property compounded at -1.1% per year. Today's modelled estimate of £105,000 sits 81% above the 2014 sale of £58,000. On the market in December 2014 and unlisted since — roughly 11 years.
Know exactly what you're buying at 11 Rhydwen
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
What this property has
Inside
- Bedrooms2
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Loft insulation upgraded to recommended levels
Planning history
11 Rhydwen has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 11 Rhydwen
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
30-day money-back guarantee
Sales history & valuation
£105,000
Modelled from EPC, postcode comparables and a sale-price growth of -1.1% per year over 6 years.
£58,000
Growth on file: -1.1% per year over 6 years.
Sales timeline
17 December 2014Most recent
£58,000
-6.5%over 6 years9 October 2008
£62,000
Everything we know about 11 Rhydwen, 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 Rhydwen homes
11 Rhydwen outperforms the street on epc rating by a wide margin.
EPC Rating
76 (C)
Street avg 67 (D)
Floor Area
58 m²
Street avg 66 m²
CO₂ Emissions
1.8 t/year
Street avg 2.6 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Post Office — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.