12 Down Leaze, Cockett, Swansea, SA2 0GQ
About 12 Down Leaze
12 Down Leaze is a detached house in Cockett, Swansea, Swansea (SA2 0GQ). It has a recorded floor area of 190 m² (around 2042 sq ft), construction records dating it to 1976-1982 and council tax band E. The latest certificate (December 2008) shows a D (score 55), a step below the typical UK home. The recommended improvements would push it to C (score 70). The latest certificate is from December 2008, so improvements made since then won't be reflected.
Untraded for 16 years, with the last transfer in April 2010. At 190 m² the property is well over the postcode median (83 m² across 16 EPCs), placing it in the larger end of the local stock. Across 2001–2010, sale prices on this property compounded at 9.4% per year. Today's modelled estimate of £366,000 sits 62.7% above the 2010 sale of £225,000. On a £-per-square-foot basis, the last sale (£110/sq ft) was about 27.8% below the postcode norm. One planning record on file: an extension approved in 2002. Past consents include an extension, meaningful when judging how the property has evolved.
Everything you need to know about 12 Down Leaze
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Energy performance
12 Down Leaze's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 11 Dec 2018
EPC Rating
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Planning history
1 application on record at 12 Down Leaze, Cockett, Swansea, SA2 0GQ
- Apr 2002ExtensionFullOutcome in report
Extension: Single storey
Single storey rear/side extension, erection of a detached rear garage and conversion of integral garage to self-contained granny annexe
- Reference
- 2002/0128
Unlock 12 Down Leaze, Cockett, Swansea, SA2 0GQ'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- Every decision — granted, refused or withdrawn (1 on record)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 84 notable nearby
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 12 Down Leaze was the highest on Land Registry record across the postcode.
£366,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.4% per year over 8 years.
£225,000
Growth on file: 9.4% per year over 8 years.
Sales timeline
8 April 2010Most recent
£225,000
+112.3%over 8 years26 November 2001
£106,000
Median price across the last 5 sales in SA2 0GQ: £156,000 (2025–2019).
Nearby sales in SA2 0GQ
11 Down Leaze, Cockett, Swansea, SA2 0GQ
Sold Aug 2025
£220,0004 Down Leaze, Cockett, Swansea, SA2 0GQ
Sold Apr 2024
£220,00028 Down Leaze, Cockett, Swansea, SA2 0GQ
Sold Dec 2020
£6,4507 Down Leaze, Cockett, Swansea, SA2 0GQ
Sold Jul 2019
£156,0005 Down Leaze, Cockett, Swansea, SA2 0GQ
Sold Jan 2018
£149,000
Versus other Down Leaze homes
On floor area, 12 Down Leaze stands well clear of the street.
Price per m²
£1,186
Street avg £2,625
Floor Area
190 m²
Street avg 92 m²
Habitable Rooms
8 rooms
Street avg 5 rooms
CO₂ Emissions
8.2 t/year
Street avg 3.6 t/year
Everything you need to know about 12 Down Leaze
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Cockett Inn — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






