20 Edison Crescent, Clydach, Swansea, SA6 5JF
About 20 Edison Crescent
20 Edison Crescent is a semi-detached house in Clydach, Swansea, Swansea (SA6 5JF). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to 1996-2002 and council tax band B. The latest certificate (July 2026) shows a C (score 74). When first surveyed in July 2013 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Good to Very Good; while window efficiency dropped from Average to Poor. This certificate was lodged in the last six months, so the rating reflects current condition.
Across 2000–2013, sale prices on this property compounded at 6.3% per year. Today's modelled estimate of £140,000 sits 64.7% above the 2013 sale of £84,995. On a £-per-square-foot basis, the last sale (£226/sq ft) was about 36.1% above the typical sold price in the postcode. On the market in September 2013 and unlisted since — roughly 13 years. At 35 m² it's 19.5% smaller than the typical home in the postcode (44 m² median across 28 EPCs).
Energy performance
20 Edison Crescent's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 8 July 2036
Property Improvements
Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
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Planning history
20 Edison Crescent has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
20 Edison Crescent has more than doubled in price since the earliest registered sale in 2000.
£140,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.3% per year over 13 years.
£84,995
Growth on file: 6.3% per year over 13 years.
Sales timeline
1 September 2013Most recent
£84,995
+117.9%over 12 years4 December 2000
£39,000
Median price across the last 5 sales in SA6 5JF: £129,000 (2025–2022).
Nearby sales in SA6 5JF
35 Edison Crescent, Clydach, Swansea, SA6 5JF
Sold Oct 2025
£134,5004 Edison Crescent, Clydach, Swansea, SA6 5JF
Sold Feb 2025
£120,0005 Edison Crescent, Clydach, Swansea, SA6 5JF
Sold Nov 2024
£150,0007 Edison Crescent, Clydach, Swansea, SA6 5JF
Sold Nov 2024
£125,00033 Edison Crescent, Clydach, Swansea, SA6 5JF
Sold Oct 2021
£114,000
Versus other Edison Crescent homes
Floor Area for 20 Edison Crescent lags the street by a wide margin.
Price per m²
£2,428
Street avg £2,200
Floor Area
35 m²
Street avg 51 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.1 t/year
Street avg 1.8 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
210/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Kelvin Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







