Model valuation£417,0008 Busby Close
Local market context
12 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Property type
Detached
Habitable rooms
8
From EPC
Floor area
140 m²
1507 sq ft
Energy rating
D
Score 61
Council tax
Band F
Tenure
Owner Occupied
About 12 Clos Cilfwnwr
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
12 Clos Cilfwnwr is a detached house in Penllergaer, Swansea, Swansea (SA4 9BU). It has a recorded floor area of 140 m² (around 1507 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (August 2016) shows a D (score 61), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 81), a 2-band jump. The latest certificate is from August 2016, so improvements made since then won't be reflected.
At 140 m² the property is well over the postcode median (89 m² across 10 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £371,000 sits 54.6% above the 2017 sale of £240,000. On a £-per-square-foot basis, the last sale (£159/sq ft) was about 25% below the postcode norm. Last changed hands 9 years ago, in May 2017.
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 25 Aug 2026
Current Certificate
Aug 2016EPC Rating
A
B
C
D
D61
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
5.9 t/year
Occupancy
Owner Occupied
Certificate validity
Expired on 25 August 2026
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Late 20th centuryDetached HouseEPC D
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Planning history
Applications and permits filed against 12 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU, sourced from the PlanIt planning register.
12 Clos Cilfwnwr has no planning applications on record.
1
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
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
12 Clos Cilfwnwr valuation sits well clear of the typical sold price in this postcode.
Current estimate
See how we calculated this£371,000
Modelled from EPC, postcode comparables.
Last sold (2017)
£240,000
Recorded with HM Land Registry.
Sales timeline
18 May 2017Most recent
£240,000
18 May 2017
£240,000
Median price across the last 5 sales in SA4 9BU: £315,000 (2025–2022).
Nearby sales in SA4 9BU
17 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Nov 2025
£314,0008 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Feb 2025
£335,00019 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Nov 2024
£335,00021 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Jul 2022
£315,0003 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Jun 2022
£325,000
Versus other Clos Cilfwnwr homes
Four headline reads against 10 similar houses on this street, drawn from the latest EPC and Land Registry data.
On price per m², 12 Clos Cilfwnwr runs well behind the street norm.
Price per m²
£1,714
Street avg £3,083
Floor Area
140 m²
Street avg 92 m²
Habitable Rooms
8 rooms
Street avg 5 rooms
CO₂ Emissions
5.9 t/year
Street avg 4.0 t/year
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Start your researchSimilar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£375k
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1 Bryn Road, Pontlliw
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1 Clos Cilfwnwr, Penllergaer
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The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Swansea district page.
Crime
160/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Clos Cilfwnwr — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Common questions
The questions buyers, sellers and homeowners most often ask about 12 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU. Each answer is also embedded as structured data for search engines.