17 Is Y Bryniau, Cwmllynfell, Swansea, SA9 2GS
About 17 Is Y Bryniau
17 Is Y Bryniau is a semi-detached house in Cwmllynfell, Swansea, Swansea (SA9 2GS). It has a recorded floor area of 100 m² (around 1076 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (September 2013) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80). Main heating runs on oil. The latest certificate is from September 2013, so improvements made since then won't be reflected.
Today's modelled estimate of £191,000 sits 85.4% above the 2013 sale of £103,000. At 100 m² it's 17.6% larger than the typical home in the postcode (85 m² median across 17 EPCs). On the market in October 2013 and unlisted since — roughly 13 years.
Know exactly what you're buying at 17 Is Y Bryniau
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
Energy performance
17 Is Y Bryniau's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 02 Sept 2023
EPC Rating
Planning history
17 Is Y Bryniau has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
£191,000
Modelled from EPC, postcode comparables.
£103,000
Recorded with HM Land Registry.
Sales timeline
10 October 2013Most recent
£103,000
Median price across the last 3 sales in SA9 2GS: £109,950 (2014–2006).
Everything we know about 17 Is Y Bryniau, 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?
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- Will it hold its value?

Versus other Is Y Bryniau homes
On habitable rooms, 17 Is Y Bryniau stands well clear of the street.
EPC Rating
60 (D)
Street avg 61 (D)
Floor Area
100 m²
Street avg 89 m²
CO₂ Emissions
5.4 t/year
Street avg 5.0 t/year
Habitable Rooms
6 rooms
Street avg 4 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
Cwmllynfell Post Office — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.