18 Bay Tree Avenue, Sketty, Swansea, SA2 8JN
About 18 Bay Tree Avenue
18 Bay Tree Avenue is a semi-detached house in Sketty, Swansea, Swansea (SA2 8JN). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (July 2020) shows an E (score 54), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 83), a 3-band jump. Main heating runs on electricity.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £196,000 sits 50.8% above the 2020 sale of £130,000. 4 planning records sit against the property, 3 approved, 1 refused. Past consents include an extension and subdivision, meaningful when judging how the property has evolved. Most recent transfer: October 2020 at £130,000.
Energy performance
18 Bay Tree Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
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Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
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Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
4 applications on record at 18 Bay Tree Avenue, Sketty, Swansea, SA2 8JN
- Mar 2021ExtensionFullOutcome in report
Conversion of properties into one residential unit with single storey front and single storey rear extensions
- Documents
- 12 docs on file
- Reference
- 2021/0200/FUL
- More recent applications — locked
- ExtensionApr 2022Decision
- ExtensionFeb 2022Decision
+ 1 more application in the report
Unlock 18 Bay Tree Avenue, Sketty, Swansea, SA2 8JN's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (4 on record)
- All 4 applications on this property in full
- The 41 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£196,000
Modelled from EPC, postcode comparables.
£130,000
Recorded with HM Land Registry.
Sales timeline
30 October 2020Most recent
£130,000
Median price across the last 5 sales in SA2 8JN: £166,000 (2024–2022).
Nearby sales in SA2 8JN
10 Bay Tree Avenue, Sketty, Swansea, SA2 8JN
Sold Aug 2024
£166,00015 Bay Tree Avenue, Sketty, Swansea, SA2 8JN
Sold Apr 2024
£107,50021 Bay Tree Avenue, Sketty, Swansea, SA2 8JN
Sold Dec 2023
£270,00023 Bay Tree Avenue, Sketty, Swansea, SA2 8JN
Sold Jan 2023
£185,0002 Bay Tree Avenue, Sketty, Swansea, SA2 8JN
Sold Sept 2022
£93,000
Versus other Bay Tree Avenue homes
18 Bay Tree Avenue is notably below the street on co₂ emissions.
Price per m²
£1,857
Street avg £1,941
Floor Area
70 m²
Street avg 78 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
5.8 t/year
Street avg 3.4 t/year
Similar properties nearby
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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
0.2 km
Sketty Park Drive — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







