18 Clos Tygwyn, Gowerton, Swansea, SA4 3GF
About 18 Clos Tygwyn
18 Clos Tygwyn is a semi-detached house in Gowerton, Swansea, Swansea (SA4 3GF). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1991-1995 and council tax band D. The latest certificate (October 2023) shows a C (score 71). When first surveyed in June 2013 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Average to Good and lighting went from Average to Very Good; while roof efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 86).
Held since May 2005 — that's 21 years off the open market, well above the local norm. Today's modelled estimate of £188,000 sits 56.7% above the 2005 sale of £119,995. On a £-per-square-foot basis, the last sale (£172/sq ft) was about 34% above the typical sold price in the postcode.
Energy performance
EPC Rating
Certificate validity
Valid until 22 October 2033
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Window efficiency improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
18 Clos Tygwyn has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
18 Clos Tygwyn valuation sits well clear of the typical sold price in this postcode.
£188,000
Modelled from EPC, postcode comparables.
£119,995
Recorded with HM Land Registry.
Sales timeline
26 May 2005Most recent
£119,995
Median price across the last 5 sales in SA4 3GF: £170,000 (2024–2023).
Nearby sales in SA4 3GF
26 Clos Tygwyn, Gowerton, Swansea, SA4 3GF
Sold Dec 2024
£170,00015 Clos Tygwyn, Gowerton, Swansea, SA4 3GF
Sold Jul 2024
£130,00039 Clos Tygwyn, Gowerton, Swansea, SA4 3GF
Sold Jan 2024
£190,00016 Clos Tygwyn, Gowerton, Swansea, SA4 3GF
Sold Nov 2023
£219,9507 Clos Tygwyn, Gowerton, Swansea, SA4 3GF
Sold Nov 2023
£7,750
Versus other Clos Tygwyn homes
Years Held for 18 Clos Tygwyn runs comfortably ahead of the street norm.
Price per m²
£1,846
Street avg £1,861
Floor Area
65 m²
Street avg 64 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.2 t/year
Street avg 2.4 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 Surgery — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







