27 Eigen Crescent, Mayhill, Swansea, SA1 6LB
About 27 Eigen Crescent
27 Eigen Crescent is a semi-detached house in Mayhill, Swansea, Swansea (SA1 6LB). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (April 2022) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2009. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 83), a 2-band jump.
Across 2009–2022, sale prices on this property compounded at 2.9% per year. Today's modelled estimate of £125,000 is 13.6% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£179/sq ft) was about 109.8% above the typical sold price in the postcode. At 57 m² it's 20.6% smaller than the typical home in the postcode (72 m² median across 22 EPCs). Most recent transfer: September 2022 at £110,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Everything you need to know about 27 Eigen Crescent
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
27 Eigen Crescent has no planning applications on record.
But the area is active
64 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£125,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.9% per year over 13 years.
£110,000
Growth on file: 2.9% per year over 13 years.
Sales timeline
29 September 2022Most recent
£110,000
+46.7%over 13 years29 June 2009
£75,000
Median price across the last 5 sales in SA1 6LB: £85,000 (2025–2021).
Nearby sales in SA1 6LB
21 Eigen Crescent, Mayhill, Swansea, SA1 6LB
Sold Oct 2025
£112,00019 Eigen Crescent, Mayhill, Swansea, SA1 6LB
Sold May 2025
£150,00041 Eigen Crescent, Mayhill, Swansea, SA1 6LB
Sold Feb 2023
£82,00045 Eigen Crescent, Mayhill, Swansea, SA1 6LB
Sold Oct 2021
£65,00067 Eigen Crescent, Mayhill, Swansea, SA1 6LB
Sold Aug 2021
£110,000
Versus other Eigen Crescent homes
On floor area, 27 Eigen Crescent runs well behind the street norm.
Price per m²
£1,930
Street avg £1,146
Floor Area
57 m²
Street avg 70 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.5 t/year
Street avg 3.1 t/year
Everything you need to know about 27 Eigen Crescent
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Teilo Crescent — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






