4a, Marshfield Road, Castleton, Cardiff, CF3 2UU
About 4a
4a is a semi-detached house in Castleton, Cardiff, Cardiff (CF3 2UU). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (August 2018) shows an E (score 48), well below the UK norm with real room to improve. When first surveyed in September 2010 the rating was F, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Average. The recommended improvements would lift it to B (score 87), a 3-band jump.
Untraded for 23 years, with the last transfer in August 2003. Today's modelled estimate of £453,000 sits 207.1% above the 2003 sale of £147,500. On a £-per-square-foot basis, the last sale (£343/sq ft) was about 67% above the typical sold price in the postcode. At 40 m² it sits well below the postcode median (153 m² across 22 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs).
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
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 £1,020 · Includes VAT
Planning history
4a 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
4a's estimated value is more than triple its earliest registered sale price (2003).
£453,000
Modelled from EPC, postcode comparables.
£147,500
Recorded with HM Land Registry.
Sales timeline
11 August 2003Most recent
£147,500
Median price across the last 5 sales in CF3 2UU: £450,000 (2024–2021).
Nearby sales in CF3 2UU
19 Marshfield Road, Castleton, Cardiff, CF3 2UU
Sold Jul 2024
£450,0002 Marshfield Road, Castleton, Cardiff, CF3 2UU
Sold May 2024
£280,000301 Marshfield Road, Castleton, Cardiff, CF3 2UU
Sold Aug 2023
£790,000311 Marshfield Road, Castleton, Cardiff, CF3 2UU
Sold Sept 2021
£260,00010 Marshfield Road, Castleton, Cardiff, CF3 2UU
Sold Feb 2021
£455,000
Versus other Marshfield Road homes
On price per m², 4a stands well clear of the street.
Price per m²
£3,688
Street avg £2,394
Floor Area
40 m²
Street avg 158 m²
Habitable Rooms
3 rooms
Street avg 6 rooms
CO₂ Emissions
3.1 t/year
Street avg 5.3 t/year
Similar properties nearby
1 Channel View, Castleton
CF3 2UP
1 Acorn Place, Castleton
CF3 2WE
1 Cypress Crescent, St Mellons
CF3 2WL
1 Oakfields, Marshfield
CF3 2EZ
1 Blacktown Gardens, Marshfield
CF3 2SF
1 Herbert Close, Marshfield
CF3 2UD
1 Bayview Cottage, Wellfield Road, Marshfield
CF3 2UB
1 Mallards Reach, Marshfield
CF3 2NN
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
3/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Castleton Rise — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







