12 Clos Gwernen, Gowerton, Swansea, SA4 3FW
About 12 Clos Gwernen
12 Clos Gwernen is a three-bedroom detached house in Gowerton, Swansea, Swansea (SA4 3FW). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1996-2002 and council tax band D. Tenure is freehold. The latest certificate (February 2023) shows a C (score 72). When first surveyed in August 2013 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good. The recommended improvements would push it to B (score 86). Other recorded features include a conservatory.
Held since November 1997 — that's 29 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £255,000 sits 264.5% above the 1997 sale of £69,950. On a £-per-square-foot basis, the last sale (£88/sq ft) was about 53.9% below the postcode norm. One historical planning record sits against the property in 2006.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- ConservatoryYes
Outside
- Private gardenFront and rear
- ParkingOff road
Building
- TenureFreehold
Energy performance
EPC Rating
Certificate validity
Valid until 8 February 2033
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
1 application on record at 12 Clos Gwernen, Gowerton, Swansea, SA4 3FW
- Jul 2006ConservatoryOutlineOutcome in report
Rear conservatory (application for a Certificate of Proposed Lawful Development)
Extension- Reference
- 2006/1254
Unlock 12 Clos Gwernen, Gowerton, Swansea, SA4 3FW's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 4 notable nearby
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Sales history & valuation
12 Clos Gwernen's estimated value is more than triple its earliest registered sale price (1997).
£255,000
Modelled from EPC, postcode comparables.
£69,950
Recorded with HM Land Registry.
Sales timeline
18 November 1997Most recent
£69,950
Median price across the last 5 sales in SA4 3FW: £182,000 (2025–2016).
Nearby sales in SA4 3FW
16 Clos Gwernen, Gowerton, Swansea, SA4 3FW
Sold Apr 2025
£180,0002 Clos Gwernen, Gowerton, Swansea, SA4 3FW
Sold Apr 2024
£222,5008 Clos Gwernen, Gowerton, Swansea, SA4 3FW
Sold Nov 2022
£290,0005 Clos Gwernen, Gowerton, Swansea, SA4 3FW
Sold Dec 2016
£182,0001 Clos Gwernen, Gowerton, Swansea, SA4 3FW
Sold Mar 2016
£190,000
Versus other Clos Gwernen homes
On epc rating, 12 Clos Gwernen stands well clear of the street.
Price per m²
£945
Street avg £2,611
Floor Area
74 m²
Street avg 70 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
2.3 t/year
Street avg 2.7 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
160/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Gowerton Rugby Club — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







