17 Cilonnen Road, Three Crosses, Swansea, SA4 3PH
About 17 Cilonnen Road
17 Cilonnen Road is a two-bedroom semi-detached house in Three Crosses, Swansea, Swansea (SA4 3PH). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (January 2015) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since December 2011. Between certificates, hot-water efficiency went from Poor to Good and lighting went from Good to Very Good; while roof efficiency dropped from Good to Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 80). The latest certificate is from January 2015, so improvements made since then won't be reflected. Other recorded features include notable views. Period features are noted in the property record. The home occupies a cul-de-sac position.
Today's modelled estimate of £374,000 sits 85.1% above the 2015 sale of £202,000. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last sold in August 2015, so it's been off the market for around 11 years. At 111 m² it's 15.7% smaller than the typical home in the postcode (132 m² median across 16 EPCs).
What this property has
Inside
- Bedrooms2
Outside
- Private gardenSouth-west-facing
- Notable viewsYes
- Cul-de-sacYes
Building
- Period featuresYes
Everything you need to know about 17 Cilonnen Road
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Energy performance
17 Cilonnen Road's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 06 Jan 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
17 Cilonnen Road has 2 separate extension applications on the council record.
2 applications on record at 17 Cilonnen Road, Three Crosses, Swansea, SA4 3PH
- Jan 2016ExtensionFullOutcome in report
Extension: Single storey · Side and rear of property
Single storey front/side extension and single storey rear extension
- Documents
- 16 docs on file
- Reference
- 2015/2369
- More recent applications — locked
- ExtensionMay 2019Decision
Unlock 17 Cilonnen Road, Three Crosses, Swansea, SA4 3PH's full planning history
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- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 5 notable nearby
- The 28 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
17 Cilonnen Road valuation sits well clear of the typical sold price in this postcode.
£374,000
Modelled from EPC, postcode comparables.
£202,000
Recorded with HM Land Registry.
Sales timeline
16 August 2015Most recent
£202,000
Median price across the last 5 sales in SA4 3PH: £375,000 (2025–2024).
Nearby sales in SA4 3PH
1 Cilonnen Road, Three Crosses, Swansea, SA4 3PH
Sold Jun 2025
£375,00021 Cilonnen Road, Three Crosses, Swansea, SA4 3PH
Sold May 2025
£350,00019 Cilonnen Road, Three Crosses, Swansea, SA4 3PH
Sold Sept 2024
£395,0006 Cilonnen Road, Three Crosses, Swansea, SA4 3PH
Sold Jul 2024
£430,00011 Cilonnen Road, Three Crosses, Swansea, SA4 3PH
Sold Jun 2024
£355,000
Versus other Cilonnen Road homes
Price per m² for 17 Cilonnen Road lags the street by a wide margin.
Price per m²
£1,820
Street avg £2,790
Floor Area
111 m²
Street avg 149 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
3.8 t/year
Street avg 6.1 t/year
Everything you need to know about 17 Cilonnen Road
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Pant Y Dwr — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






