12a, Frogmore Avenue, Sketty, Swansea, SA2 9DJ
About 12a
12a is a detached house in Sketty, Swansea, Swansea (SA2 9DJ). It has a recorded floor area of 79 m² (around 850 sq ft) and construction records dating it to 1900-1929. The latest certificate (February 2017) shows an E (score 45), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump.
Untraded for 16 years, with the last transfer in September 2010. Today's modelled estimate of £187,000 sits 187.7% above the 2010 sale of £65,000. On a £-per-square-foot basis, the last sale (£76/sq ft) was about 34.4% below the postcode norm. At 79 m² it's 22.9% smaller than the typical home in the postcode (103 m² median across 14 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs).
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has been extended more than once, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
12a 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
12a valuation sits well clear of the typical sold price in this postcode.
£187,000
Modelled from EPC, postcode comparables.
£65,000
Recorded with HM Land Registry.
Sales timeline
29 September 2010Most recent
£65,000
Median price across the last 5 sales in SA2 9DJ: £174,000 (2025–2020).
Nearby sales in SA2 9DJ
8 Frogmore Avenue, Sketty, Swansea, SA2 9DJ
Sold Sept 2025
£165,0003 Frogmore Avenue, Sketty, Swansea, SA2 9DJ
Sold Jun 2021
£240,0005 Frogmore Avenue, Sketty, Swansea, SA2 9DJ
Sold Jun 2021
£174,00012 Frogmore Avenue, Sketty, Swansea, SA2 9DJ
Sold May 2020
£100,0002 Frogmore Avenue, Sketty, Swansea, SA2 9DJ
Sold Oct 2019
£165,000
Versus other Frogmore Avenue homes
12a is notably below the street on epc rating.
Price per m²
£823
Street avg £1,369
Floor Area
79 m²
Street avg 104 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 4.4 t/year
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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
Sketty Cross — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







