18 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
About 18 Llewellyn Circle
18 Llewellyn Circle is a three-bedroom semi-detached house in Mayhill, Swansea, Swansea (SA1 6SN). It has a recorded floor area of 99 m² (around 1066 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (February 2022) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 85), a 2-band jump. Other recorded features include notable views. Our model identifies extension potential, subject to local planning policy. The home occupies a corner plot.
At 99 m² it's 18.6% larger than the typical home in the postcode (84 m² median across 12 EPCs). Today's modelled estimate of £180,000 is 38.5% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£122/sq ft) was about 38.3% above the typical sold price in the postcode. Sold July 2023 for £130,000. One historical planning record sits against the property in 2005.
What this property has
Inside
- Bedrooms3
- Bathrooms2
- CloakroomYes
Outside
- Private gardenYes
- Notable viewsYes
- Corner plotYes
Building
- Heating systemGas
- RefurbishedYes
- Extension potentialPossible
Everything you need to know about 18 Llewellyn Circle
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
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
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Planning history
1 application on record at 18 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
- Nov 2005ExtensionOutlineOutcome in report
Extension: Rear of property
Retention of single storey rear extension (application for a Certificate of Proposed Lawful Development)
- Reference
- 2005/1868
Unlock 18 Llewellyn Circle, Mayhill, Swansea, SA1 6SN'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- Every decision — granted, refused or withdrawn (1 on record)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 64 notable nearby
- What the pattern means for extending or converting here
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Sales history & valuation
18 Llewellyn Circle valuation sits well clear of the typical sold price in this postcode.
£180,000
Modelled from EPC, postcode comparables.
£130,000
Recorded with HM Land Registry.
Sales timeline
16 July 2023Most recent
£130,000
Median price across the last 5 sales in SA1 6SN: £107,000 (2023–2017).
Nearby sales in SA1 6SN
11 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
Sold Jul 2023
£135,00021 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
Sold May 2023
£107,00014 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
Sold Mar 2023
£100,00017a, Llewellyn Circle, Mayhill, Swansea, SA1 6SN
Sold Jun 2019
£95,0002 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
Sold Jun 2017
£107,500
Versus other Llewellyn Circle homes
18 Llewellyn Circle is notably below the street on years held.
Price per m²
£1,313
Street avg £1,038
Floor Area
99 m²
Street avg 97 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.8 t/year
Street avg 4.9 t/year
Everything you need to know about 18 Llewellyn Circle
The true value, the hidden risks and the full sale history, in one report.
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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
Leakers Shops — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






