31 Llys Illtern, Capel Llanilltern, Cardiff, CF5 6GB
About 31 Llys Illtern
31 Llys Illtern is a three-bedroom detached house in Capel Llanilltern, Cardiff, Cardiff (CF5 6GB). It has a recorded floor area of 93 m² (around 1001 sq ft) and construction records dating it to 2021. Tenure is freehold. The latest certificate (August 2021) returns a B (score 83), comfortably above the UK average. The recommended improvements would push it to A (score 94).
One planning record on file: an extension approved in 2025. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. At 93 m² it's 17% smaller than the typical home in the postcode (112 m² median across 46 EPCs). Today's modelled estimate of £368,000 is 22.7% above the 2021 sale price. Last sale on file: £300,000 in October 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms3
- Bathrooms2
- Dining roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenRear
- GarageYes
Building
- TenureFreehold
- RefurbishedYes
Energy performance
31 Llys Illtern's carbon output is low for the local stock.
EPC Rating
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Planning history
1 application on record at 31 Llys Illtern, Capel Llanilltern, Cardiff, CF5 6GB
- May 2025Garage ConversionFullOutcome in report
Extension: Single storey · Rear of property
Proposed single storey, flat roof, rear kitchen extension and garage conversion
Extension- Documents
- 8 docs on file
- Reference
- 25/00800/HSE
Unlock 31 Llys Illtern, Capel Llanilltern, Cardiff, CF5 6GB'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- Every decision — granted, refused or withdrawn (1 on record)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 1 notable nearby
- The 8 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.
£368,000
Modelled from EPC, postcode comparables.
£300,000
Recorded with HM Land Registry.
Sales timeline
24 October 2021Most recent
£300,000
Median price across the last 5 sales in CF5 6GB: £399,995 (2024–2023).
Nearby sales in CF5 6GB
57 Llys Illtern, Capel Llanilltern, Cardiff, CF5 6GB
Sold Feb 2024
£399,99555 Llys Illtern, Capel Llanilltern, Cardiff, CF5 6GB
Sold Dec 2023
£399,99553 Llys Illtern, Capel Llanilltern, Cardiff, CF5 6GB
Sold Dec 2023
£414,99563 Llys Illtern, Capel Llanilltern, Cardiff, CF5 6GB
Sold Nov 2023
£399,99559 Llys Illtern, Capel Llanilltern, Cardiff, CF5 6GB
Sold Nov 2023
£399,995
Versus other Llys Illtern homes
31 Llys Illtern is notably below the street on price per m².
Price per m²
£3,226
Street avg £3,438
Floor Area
93 m²
Street avg 120 m²
CO₂ Emissions
1.5 t/year
Street avg 1.7 t/year
Years Held
5 years
Street avg 4 years
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.4 km
Heol St y Nyll — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







