20 Lewis Avenue, Cwmllynfell, Swansea, SA9 2GR
About 20 Lewis Avenue
20 Lewis Avenue is a semi-detached house in Cwmllynfell, Swansea, Swansea (SA9 2GR). It has a recorded floor area of 89 m² (around 958 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (November 2020) shows a C (score 69), just inside the C band. When first surveyed in March 2017 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Average to Good and window efficiency went from Average to Good. The recommended improvements would push it to B (score 84). Main heating runs on oil.
At 89 m² it's 17.6% smaller than the typical home in the postcode (108 m² median across 7 EPCs). Its energy rating outperforms most of the postcode (better than 86% of similar EPCs).
Know exactly what you're buying at 20 Lewis Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Window efficiency improved
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
20 Lewis Avenue has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
20 Lewis Avenue has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£201,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in SA9 2GR: £70,000 (2025–2013).
Everything we know about 20 Lewis Avenue, 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 Lewis Avenue homes
20 Lewis Avenue is notably below the street on floor area.
EPC Rating
69 (C)
Street avg 50 (E)
Floor Area
89 m²
Street avg 128 m²
CO₂ Emissions
3.9 t/year
Street avg 9.1 t/year
Habitable Rooms
7 rooms
Street avg 5 rooms
Similar properties nearby
1 Ffordd Glandwr, Ystalyfera
SA9 2ER
1 Brynheulog Terrace, New Road, Cwmllynfell
SA9 2FD
1 Dan Y Graig Cottages, Felinfach, Ystradowen
SA9 2XT
1 Cadfan Villas, Swanfield, Ystalyfera
SA9 2JE
1 Carreg Yr Afon, Godrergraig
SA9 2DR
1 Crimea Court, Graig Newydd, Godrergraig
SA9 2DT
1 Caedu Road, Cwmllynfell
SA9 2FQ
1 Deeley Road, Ystalyfera
SA9 2LW
The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 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.