9 Llys Mieri, Penllergaer, Swansea, SA4 9DL
About 9 Llys Mieri
9 Llys Mieri is an end-of-terrace house in Penllergaer, Swansea, Swansea (SA4 9DL). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 2007-2011 and council tax band D. The latest certificate (August 2023) shows a C (score 77), near the top of the C band. Earlier certificates rated it B (March 2011); the latest reading is one band lower. Between certificates, roof efficiency went from Good to Very Good and lighting went from Average to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 91).
Across 2011–2024, sale prices on this property compounded at 3.9% per year. On a £-per-square-foot basis, the last sale (£270/sq ft) was about 57.2% above the typical sold price in the postcode. At 72 m² it's 19.9% smaller than the typical home in the postcode (90 m² median across 13 EPCs). Sold February 2024 for £209,000.
Energy performance
EPC Rating
Certificate validity
Valid until 31 August 2033
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Wall insulation upgraded
Roof insulation improved
More low energy lighting installed
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Planning history
9 Llys Mieri has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
9 Llys Mieri valuation sits well clear of the typical sold price in this postcode.
£216,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.9% per year over 13 years.
£209,000
Growth on file: 3.9% per year over 13 years.
Sales timeline
9 February 2024Most recent
£209,000
+61.6%over 12 years4 August 2011
£129,295
Median price across the last 5 sales in SA4 9DL: £165,000 (2025–2016).
Nearby sales in SA4 9DL
5 Llys Mieri, Penllergaer, Swansea, SA4 9DL
Sold Dec 2025
£165,0007 Llys Mieri, Penllergaer, Swansea, SA4 9DL
Sold Aug 2025
£215,00014 Llys Mieri, Penllergaer, Swansea, SA4 9DL
Sold Aug 2017
£231,0001 Llys Mieri, Penllergaer, Swansea, SA4 9DL
Sold Dec 2015
£170,0008 Llys Mieri, Penllergaer, Swansea, SA4 9DL
Sold Mar 2015
£115,000
Versus other Llys Mieri homes
EPC Rating for 9 Llys Mieri lags the street by a wide margin.
Price per m²
£2,903
Street avg £1,896
Floor Area
72 m²
Street avg 91 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
1.8 t/year
Street avg 1.9 t/year
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The neighbourhood at a glance
Crime
160/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Tircoed Turn — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







