106 Ynyswen, Penycae, Swansea, SA9 1YX
About 106 Ynyswen
106 Ynyswen is a three-bedroom semi-detached house in Penycae, Swansea, Swansea (SA9 1YX). It has a recorded floor area of 87 m² (around 936 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (March 2021) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since July 2010. Between certificates, lighting went from Average to Very Good; while wall efficiency dropped from Good to Average and roof efficiency dropped from Very Good to Good. The recommended improvements would push it to C (score 75). Main heating runs on oil.
Across 2010–2021, sale prices on this property compounded at 2.7% per year. Today's modelled estimate of £151,000 is 43.8% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£112/sq ft) was about 60.9% above the typical sold price in the postcode. Sold June 2021 for £105,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 106 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
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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
- Bedrooms3
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Hot water efficiency improved
Cavity wall insulation installed
More low energy lighting installed
Planning history
106 Ynyswen has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 106 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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£151,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.7% per year over 11 years.
£105,000
Growth on file: 2.7% per year over 11 years.
Sales timeline
24 June 2021Most recent
£105,000
+32.1%over 10 years12 November 2010
£79,500
Median price across the last 5 sales in SA9 1YX: £102,000 (2021–2014).
Nearby sales in SA9 1YX
Everything we know about 106 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
Years Held for 106 Ynyswen lags the street by a wide margin.
Price per m²
£1,207
Street avg £880
Floor Area
87 m²
Street avg 93 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
4.8 t/year
Street avg 5.8 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
Post Office — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.