4 Merthyr Road, Tongwynlais, Cardiff, CF15 7LH
About 4 Merthyr Road
4 Merthyr Road is a two-bedroom end-of-terrace house in Tongwynlais, Cardiff, Cardiff (CF15 7LH). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (February 2021) shows a D (score 56), a step below the typical UK home. When first surveyed in July 2009 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good and lighting went from Good to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 85), a 2-band jump. Period features are noted in the property record.
Untraded for 21 years, with the last transfer in October 2005. Across the public record there are 4 sales, relatively high churn for a single property. Across 1998–2005, sale prices on this property compounded at 18.6% per year. Today's modelled estimate of £204,000 is 37.8% above the 2005 sale price. On a £-per-square-foot basis, the last sale (£233/sq ft) was about 16.2% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms2
- Bathrooms1
- FireplaceYes
Outside
- Private gardenRear
Building
- Period featuresYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 2 February 2031
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Roof insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
4 Merthyr Road 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
Sale price has grown by over 3x since 1998.
£204,000
Modelled from EPC, postcode comparables and a sale-price growth of 18.6% per year over 7 years.
£148,000
Growth on file: 18.6% per year over 7 years.
Sales timeline
2 October 2005Most recent
£148,000
+248.2%over 3 years9 November 2001
£42,500
-28.6%over 6 months3 May 2001
£59,500
+29.3%over 2 years20 November 1998
£46,000
Median price across the last 5 sales in CF15 7LH: £202,000 (2025–2021).
Nearby sales in CF15 7LH
18 Merthyr Road, Tongwynlais, Cardiff, CF15 7LH
Sold Sept 2025
£289,95020 Merthyr Road, Tongwynlais, Cardiff, CF15 7LH
Sold Jun 2025
£159,00022 Merthyr Road, Tongwynlais, Cardiff, CF15 7LH
Sold Dec 2024
£210,00026a, Merthyr Road, Tongwynlais, Cardiff, CF15 7LH
Sold Feb 2024
£202,00032 Merthyr Road, Tongwynlais, Cardiff, CF15 7LH
Sold Jul 2021
£120,000
Versus other Merthyr Road homes
Years Held for 4 Merthyr Road runs comfortably ahead of the street norm.
Price per m²
£2,508
Street avg £2,771
Floor Area
59 m²
Street avg 84 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
3.6 t/year
Street avg 2.8 t/year
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The neighbourhood at a glance
Crime
85/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Bute Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







