16 St Mellons Road, Marshfield, Cardiff, CF3 2TX
About 16 St Mellons Road
16 St Mellons Road is a three-bedroom semi-detached house in Marshfield, Cardiff, Cardiff (CF3 2TX). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1976-1982 and council tax band D. The latest certificate (December 2016) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2010. Between certificates, lighting went from Very Poor to Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 80). Other recorded features include a conservatory.
Last changed hands 9 years ago, in September 2017. At 86 m² it's 24.6% smaller than the typical home in the postcode (114 m² median across 23 EPCs). Across 1997–2017, sale prices on this property compounded at 10.1% per year. Today's modelled estimate of £316,000 is 31.7% above the 2017 sale price.
What this property has
Inside
- Bedrooms3
- Dining roomYes
- ConservatoryYes
Outside
- Private gardenFront and rear
- GarageYes
Building
- Central heatingYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Roof insulation improved
More low energy lighting installed
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Planning history
16 St Mellons 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
Price for 16 St Mellons Road has grown more than fourfold since the 1997 starting point.
£316,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.1% per year over 20 years.
£240,000
Growth on file: 10.1% per year over 20 years.
Sales timeline
11 September 2017Most recent
£240,000
+33.3%over 8 years23 December 2008
£180,000
+429.4%over 11 years1 May 1997
£34,000
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
On floor area, 16 St Mellons Road runs well behind the street norm.
Price per m²
£2,791
Street avg £2,546
Floor Area
86 m²
Street avg 143 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
3.4 t/year
Street avg 4.4 t/year
Similar properties nearby
1 Channel View, Castleton
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1 Cambrian Gardens, Marshfield
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1 Mallards Reach, Marshfield
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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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1 Cambrian Grove, Marshfield
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1 Clos Elphan, St Mellons
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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.







