13 Ynyswen, Penycae, Swansea, SA9 1YS
About 13 Ynyswen
13 Ynyswen is a two-bedroom semi-detached house in Penycae, Swansea, Swansea (SA9 1YS). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (July 2012) shows a D (score 57), a step below the typical UK home. The recommended improvements would lift it to B (score 85), a 2-band jump. Main heating runs on oil. The latest certificate is from July 2012, so improvements made since then won't be reflected.
Across 1998–2012, sale prices on this property compounded at 12.8% per year. Today's modelled estimate of £145,000 sits 123.1% above the 2012 sale of £65,000. 13 years since the last transfer (December 2012).
Know exactly what you're buying at 13 Ynyswen
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms2
- Bathrooms2
- Dining roomYes
- Utility roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Parkingoff_road
Building
- Heating systemoil
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 23 Jul 2022
EPC Rating
Planning history
13 Ynyswen has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 13 Ynyswen
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
Price for 13 Ynyswen has grown more than fourfold since the 1998 starting point.
£145,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.8% per year over 14 years.
£65,000
Growth on file: 12.8% per year over 14 years.
Sales timeline
14 December 2012Most recent
£65,000
+441.7%over 11 years25 July 2001
£12,000
-0.8%over 2 years30 December 1998
£12,100
Median price across the last 5 sales in SA9 1YS: £153,000 (2025–2024).
Nearby sales in SA9 1YS
Everything we know about 13 Ynyswen, 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 Ynyswen homes
13 Ynyswen is notably below the street on habitable rooms.
Price per m²
£855
Street avg £1,126
Floor Area
76 m²
Street avg 91 m²
Habitable Rooms
3 rooms
Street avg 6 rooms
CO₂ Emissions
4.6 t/year
Street avg 5.2 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Ynyswen — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.