1a, Carmarthen Street, Cardiff, CF5 1QG
About 1a
1a is a three-bedroom semi-detached house in Cardiff (CF5 1QG). It has a recorded floor area of 92 m² (around 990 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (October 2012) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 84), a 2-band jump. The latest certificate is from October 2012, so improvements made since then won't be reflected.
Sold September 2018 for £300,250. Across the public record there are 4 sales, relatively high churn for a single property. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved. At 92 m² it's 22.7% larger than the typical home in the postcode (75 m² median across 15 EPCs). Across 1995–2018, sale prices on this property compounded at 7% per year. Today's modelled estimate of £391,000 is 30.2% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£303/sq ft) was about 68.9% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Energy performance
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This certificate is over 10 years old and is no longer valid.Expired 04 Oct 2022
EPC Rating
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Planning history
2 applications on record at 1a, Carmarthen Street, Cardiff, CF5 1QG
- Dec 2012TreesOutcome in report
Line of sycamores
- Reference
- CANT/TP/12/00282
- More recent applications — locked
- Tree WorksNov 2020Decision
Unlock 1a, Carmarthen Street, Cardiff, CF5 1QG'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- Every decision — granted, refused or withdrawn (2 on record)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 2 notable nearby
- What the pattern means for extending or converting here
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Sales history & valuation
Price for 1a has grown more than fourfold since the 1995 starting point.
£391,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 23 years.
£300,250
Growth on file: 7.0% per year over 23 years.
Sales timeline
20 September 2018Most recent
£300,250
+38.4%over 5 years14 December 2012
£217,000
+88.7%over 10 years26 September 2002
£115,000
+87.0%over 7 years27 April 1995
£61,500
Median price across the last 5 sales in CF5 1QG: £255,000 (2022–2019).
Nearby sales in CF5 1QG
Versus other Carmarthen Street homes
Habitable Rooms for 1a runs comfortably ahead of the street norm.
Price per m²
£3,264
Street avg £2,387
Floor Area
92 m²
Street avg 86 m²
Habitable Rooms
6 rooms
Street avg 4 rooms
CO₂ Emissions
3.9 t/year
Street avg 4.1 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Carmarthen Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







