12 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL
About 12 Pen Y Bryn
12 Pen Y Bryn is a three-bedroom semi-detached house in Cwmllynfell, Swansea, Swansea (SA9 2FL). It has a recorded floor area of 80 m² (around 861 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (July 2025) shows a C (score 70). When first surveyed in April 2016 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Poor, hot-water efficiency went from Poor to Average and lighting went from Average to Very Good. The recommended improvements would lift it to A (score 106), a 2-band jump. Main heating runs on oil. Other recorded features include notable views. The home occupies a cul-de-sac position.
At 80 m² it's 20.8% smaller than the typical home in the postcode (101 m² median across 12 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Across 2002–2024, sale prices on this property compounded at 3.2% per year. Today's modelled estimate of £164,000 is 36.7% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£139/sq ft) was about 171.3% above the typical sold price in the postcode. Last sale on file: £120,000 in September 2024.
Know exactly what you're buying at 12 Pen Y Bryn
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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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
- Bathrooms1
- Dining roomYes
Outside
- Private gardenYes
- GarageYes
- Notable viewsYes
- Cul-de-sacYes
Building
- RefurbishedYes
Energy performance
12 Pen Y Bryn ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Fuel source changed
Heating controls upgraded for better temperature management
Hot water efficiency improved
Wall insulation improved
More low energy lighting installed
Planning history
12 Pen Y Bryn has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
Sale price has at least doubled since 2002.
£164,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.2% per year over 22 years.
£120,000
Growth on file: 3.2% per year over 22 years.
Sales timeline
12 September 2024Most recent
£120,000
+100.0%over 20 years13 February 2004
£59,995
30 May 2002
£59,995
Median price across the last 5 sales in SA9 2FL: £90,000 (2022–2006).
Nearby sales in SA9 2FL
14 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL
Sold Aug 2022
£200,00050 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL
Sold Sept 2013
£69,95010 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL
Sold Oct 2009
£90,0006 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL
Sold Sept 2006
£75,0008 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL
Sold Aug 2002
£36,000
Everything we know about 12 Pen Y Bryn, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
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- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Pen Y Bryn homes
Years Held for 12 Pen Y Bryn lags the street by a wide margin.
Price per m²
£1,500
Street avg £820
Floor Area
80 m²
Street avg 101 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
4.3 t/year
Street avg 9.6 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Cwmllynfell Chapel — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.