14 Clos Islwyn, Killay, Swansea, SA2 7ET
About 14 Clos Islwyn
14 Clos Islwyn is a detached house in Killay, Swansea, Swansea (SA2 7ET). It has a recorded floor area of 134 m² (around 1442 sq ft), construction records dating it to 1996-2002 and council tax band F. The latest certificate (July 2014) shows a C (score 74). The recommended improvements would push it to B (score 84). The latest certificate is from July 2014, so improvements made since then won't be reflected.
At 134 m² the property is well over the postcode median (102 m² across 8 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2011. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. Across 1999–2019, sale prices on this property compounded at 5.5% per year. Today's modelled estimate of £389,000 is 38.9% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£194/sq ft) was about 32.1% above the typical sold price in the postcode. Most recent transfer: November 2019 at £280,000.
Energy performance
14 Clos Islwyn'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This certificate is over 10 years old and is no longer valid.Expired 27 Jul 2024
EPC Rating
Certificate validity
Expired on 27 July 2024
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Planning history
14 Clos Islwyn has an approved extension on the planning record.
1 application on record at 14 Clos Islwyn, Killay, Swansea, SA2 7ET
- Feb 2011ConservatoryFullOutcome in report
Extension to existing orangery
Extension- Documents
- 7 docs on file
- Reference
- 2010/1747
Unlock 14 Clos Islwyn, Killay, Swansea, SA2 7ET'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- Every decision — granted, refused or withdrawn (1 on record)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 3 notable nearby
- The 7 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
14 Clos Islwyn has more than doubled in price since the earliest registered sale in 1999.
£389,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.5% per year over 20 years.
£280,000
Growth on file: 5.5% per year over 20 years.
Sales timeline
7 November 2019Most recent
£280,000
+25.0%over 14 years19 October 2005
£224,000
+133.5%over 5 years27 October 1999
£95,950
Median price across the last 5 sales in SA2 7ET: £270,000 (2024–2015).
Nearby sales in SA2 7ET
11 Clos Islwyn, Killay, Swansea, SA2 7ET
Sold Apr 2024
£325,0005 Clos Islwyn, Killay, Swansea, SA2 7ET
Sold Feb 2019
£290,0004 Clos Islwyn, Killay, Swansea, SA2 7ET
Sold Feb 2017
£270,0007 Clos Islwyn, Killay, Swansea, SA2 7ET
Sold Sept 2015
£212,0002 Clos Islwyn, Killay, Swansea, SA2 7ET
Sold Aug 2013
£196,500
Versus other Clos Islwyn homes
Floor Area for 14 Clos Islwyn runs comfortably ahead of the street norm.
Price per m²
£2,090
Street avg £2,314
Floor Area
134 m²
Street avg 104 m²
Habitable Rooms
8 rooms
Street avg 6 rooms
CO₂ Emissions
3.5 t/year
Street avg 3.3 t/year
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The neighbourhood at a glance
Crime
120/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Lamb Lane — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







