21 Orchard Park, St Mellons, Cardiff, CF3 0AQ
About 21 Orchard Park
21 Orchard Park is a one-bedroom semi-detached house in St. Mellons, Cardiff, Cardiff (CF3 0AQ). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 1983-1990 and council tax band B. The latest certificate (July 2012) shows a C (score 71). The rating has held steady at C across 2 certificates since July 2009. Between certificates, roof efficiency went from Average to Good and window efficiency went from Average to Good. The recommended improvements would lift it to A (score 93), a 2-band jump. The latest certificate is from July 2012, so improvements made since then won't be reflected. The home occupies a cul-de-sac position.
At 42 m² it sits well below the postcode median (67 m² across 55 EPCs), making it one of the more compact homes locally. Sold December 2019 for £129,950. Across the public record there are 4 sales, relatively high churn for a single property. Across 2003–2019, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £163,000 is 25.4% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£287/sq ft) was about 69.1% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms1
- Bathrooms1
- Open-plan layoutYes
Outside
- Private gardenYes
- ParkingAllocated
- Cul-de-sacYes
Building
- Heating systemGas
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 05 Jul 2022
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Roof insulation improved
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Planning history
21 Orchard Park 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 at least doubled since 2003.
£163,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 17 years.
£129,950
Growth on file: 4.7% per year over 17 years.
Sales timeline
5 December 2019Most recent
£129,950
+20.9%over 2 years1 October 2017
£107,500
+7.5%over 2 years11 June 2015
£100,000
+66.8%over 12 years14 February 2003
£59,950
Median price across the last 5 sales in CF3 0AQ: £200,000 (2025–2024).
Nearby sales in CF3 0AQ
48 Orchard Park, St Mellons, Cardiff, CF3 0AQ
Sold May 2025
£139,00017 Orchard Park, St Mellons, Cardiff, CF3 0AQ
Sold Feb 2025
£200,00055 Orchard Park, St Mellons, Cardiff, CF3 0AQ
Sold Dec 2024
£270,00047 Orchard Park, St Mellons, Cardiff, CF3 0AQ
Sold Dec 2024
£147,00015 Orchard Park, St Mellons, Cardiff, CF3 0AQ
Sold Oct 2024
£223,000
Versus other Orchard Park homes
21 Orchard Park is notably below the street on floor area.
Price per m²
£3,094
Street avg £2,312
Floor Area
42 m²
Street avg 67 m²
Habitable Rooms
2 rooms
Street avg 4 rooms
CO₂ Emissions
1.6 t/year
Street avg 2.6 t/year
Similar properties nearby
1 Aspen Close, St Mellons
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1 Caraway Close, St Mellons
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1 Caradoc Close, St Mellons
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1 Ashdown Close, St Mellons
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1 Aster Close, St Mellons
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1 Chartley Close, St Mellons
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1 Cathcob Close, St Mellons
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1 Aston Place, 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
0.1 km
Bluebell Inn — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







