22 St Mellons Road, Marshfield, Cardiff, CF3 2TX
About 22 St Mellons Road
22 St Mellons Road is a three-bedroom semi-detached house in Marshfield, Cardiff, Cardiff (CF3 2TX). It has a recorded floor area of 103 m² (around 1109 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (November 2016) shows an E (score 45), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 77), a 2-band jump. Other recorded features include a conservatory and a loft.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. One planning record on file: an extension approved in 2017. Past consents include an extension, a conservatory and partial demolition, meaningful when judging how the property has evolved. Today's modelled estimate of £299,000 is 49.5% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£180/sq ft) was about 25.3% below the postcode norm. On the market in June 2017 and unlisted since — roughly 9 years.
What this property has
Inside
- Bedrooms3
- Dining roomYes
- LoftYes
- ConservatoryYes
Outside
- Private gardenRear
Building
- Central heatingYes
- RefurbishedYes
Energy performance
22 St Mellons Road sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
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Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
1 application on record at 22 St Mellons Road, Marshfield, Cardiff, CF3 2TX
- Nov 2017ConservatoryFullOutcome in report
Extension: Rear of property
DEMOLITION OF REAR CONSERVATORY AND ERECTION OF REAR ORANGERY
ExtensionDemolition- Documents
- 13 docs on file
- Reference
- 17/0709
Unlock 22 St Mellons Road, Marshfield, Cardiff, CF3 2TX's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 1 notable nearby
- The 13 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
£299,000
Modelled from EPC, postcode comparables.
£200,000
Recorded with HM Land Registry.
Sales timeline
29 June 2017Most recent
£200,000
Median price across the last 5 sales in CF3 2TX: £507,500 (2025–2023).
Nearby sales in CF3 2TX
18 St Mellons Road, Marshfield, Cardiff, CF3 2TX
Sold Jul 2025
£295,00015a, St Mellons Road, Marshfield, Cardiff, CF3 2TX
Sold May 2025
£515,00023 St Mellons Road, Marshfield, Cardiff, CF3 2TX
Sold Nov 2024
£507,50021 St Mellons Road, Marshfield, Cardiff, CF3 2TX
Sold Jan 2024
£495,00025 St Mellons Road, Marshfield, Cardiff, CF3 2TX
Sold Aug 2023
£515,000
Versus other St Mellons Road homes
22 St Mellons Road is notably below the street on habitable rooms.
Price per m²
£1,942
Street avg £2,596
Floor Area
103 m²
Street avg 143 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
6.9 t/year
Street avg 4.2 t/year
Similar properties nearby
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1 Oakfields, Marshfield
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1 Cypress Crescent, St Mellons
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1 Blacktown Gardens, Marshfield
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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
0.3 km
Oakfields — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







