18 Llewelyn Goch, St Fagans, Cardiff, CF5 6HR
About 18 Llewelyn Goch
18 Llewelyn Goch is a five-bedroom detached house in St. Fagans, Cardiff, Cardiff (CF5 6HR). It has a recorded floor area of 150 m² (around 1615 sq ft), construction records dating it to 2003-2006 and council tax band G. The latest certificate (April 2013) shows a C (score 74). The recommended improvements would push it to B (score 84). The latest certificate is from April 2013, so improvements made since then won't be reflected.
Across 2002–2013, sale prices on this property compounded at 2.4% per year. Today's modelled estimate of £537,000 sits 53.4% above the 2013 sale of £350,000. On a £-per-square-foot basis, the last sale (£217/sq ft) was about 27.4% above the typical sold price in the postcode. Last changed hands 13 years ago, in September 2013.
What this property has
Inside
- Bedrooms5
Energy performance
18 Llewelyn Goch'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This certificate is over 10 years old and is no longer valid.Expired 25 Apr 2023
EPC Rating
Certificate validity
Expired on 25 April 2023
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Planning history
18 Llewelyn Goch has no planning applications on record.
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
18 Llewelyn Goch valuation sits well clear of the typical sold price in this postcode.
£537,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.4% per year over 11 years.
£350,000
Growth on file: 2.4% per year over 11 years.
Sales timeline
11 September 2013Most recent
£350,000
+30.1%over 11 years4 July 2002
£269,000
Median price across the last 5 sales in CF5 6HR: £590,000 (2026–2024).
Nearby sales in CF5 6HR
37 Llewelyn Goch, St Fagans, Cardiff, CF5 6HR
Sold May 2026
£592,50017 Llewelyn Goch, St Fagans, Cardiff, CF5 6HR
Sold May 2025
£590,00029 Llewelyn Goch, St Fagans, Cardiff, CF5 6HR
Sold Apr 2025
£650,00033 Llewelyn Goch, St Fagans, Cardiff, CF5 6HR
Sold Jan 2025
£425,00031 Llewelyn Goch, St Fagans, Cardiff, CF5 6HR
Sold Apr 2024
£495,000
Versus other Llewelyn Goch homes
On co₂ emissions, 18 Llewelyn Goch stands well clear of the street.
Price per m²
£2,333
Street avg £2,354
Floor Area
150 m²
Street avg 166 m²
Habitable Rooms
8 rooms
Street avg 7 rooms
CO₂ Emissions
3.5 t/year
Street avg 5.0 t/year
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The neighbourhood at a glance
Crime
426/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Rhydlafar — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







