10 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL
About 10 Pen Y Bryn
10 Pen Y Bryn is a three-bedroom detached house in Cwmllynfell, Swansea, Swansea (SA9 2FL). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (November 2014) shows an F (score 34), near the bottom of the EPC scale. The rating has held steady at F across 4 certificates since June 2009. Between certificates, roof efficiency went from Average to Very Good and lighting went from Poor to Very Good; while hot-water efficiency dropped from Average to Poor. The recommended improvements would lift it to C (score 78), a 3-band jump. Main heating runs on bulk wood pellets. The latest certificate is from November 2014, so improvements made since then won't be reflected.
Held since October 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 2002–2009, sale prices on this property compounded at 9.8% per year. Today's modelled estimate of £155,000 sits 72.2% above the 2009 sale of £90,000. On a £-per-square-foot basis, the last sale (£98/sq ft) was about 41.2% above the typical sold price in the postcode. One planning record on file: an extension approved in 2021. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. At 85 m² it's 15.8% smaller than the typical home in the postcode (101 m² median across 12 EPCs).
Know exactly what you're buying at 10 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
- Dining roomYes
- CloakroomYes
Outside
- Private gardenfront_and_rear
- GarageYes
Building
- Central heatingYes
Energy performance
10 Pen Y Bryn's carbon output is low for the local stock.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 08 Nov 2024
EPC Rating
Property Improvements
Changes detected from historical EPC data
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water system changed
More low energy lighting installed
Heating controls changed
Hot water system upgraded
Single glazing replaced with double or better glazing
Roof insulation improved
Heating controls upgraded for better temperature management
Hot water system changed
Loft insulation upgraded to recommended levels
Planning history
- Aug 2021Loft ConversionFullIn report
Extension: Two storey · Rear of property
Proposed two storey rear extension with first floor extension & attic conversion.
Extension- Documents
- 11 docs on file
- Reference
- P2021/0370
What's in 10 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
10 Pen Y Bryn's estimated value is more than triple its earliest registered sale price (2002).
£155,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.8% per year over 7 years.
£90,000
Growth on file: 9.8% per year over 7 years.
Sales timeline
30 October 2009Most recent
£90,000
+91.5%over 6 years29 November 2002
£47,000
Median price across the last 5 sales in SA9 2FL: £105,000 (2024–2006).
Nearby sales in SA9 2FL
12 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL
Sold Sept 2024
£120,00014 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL
Sold Aug 2022
£200,00050 Pen Y Bryn, Cwmllynfell, Swansea, SA9 2FL
Sold Sept 2013
£69,9506 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 10 Pen Y Bryn, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Pen Y Bryn homes
10 Pen Y Bryn outperforms the street on co₂ emissions by a wide margin.
Price per m²
£1,059
Street avg £893
Floor Area
85 m²
Street avg 101 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
1.0 t/year
Street avg 9.9 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.