18 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX
About 18 Ruperra Close
18 Ruperra Close is a four-bedroom detached house in Old St. Mellons, Cardiff, Cardiff (CF3 6HX). It has a recorded floor area of 282 m² (around 3035 sq ft), construction records dating it to 2003-2006 and council tax band H. The latest certificate (April 2025) shows a C (score 78), near the top of the C band. The recommended improvements would push it to B (score 82). Records show the property has been extended at some point in its history.
It hasn't traded since August 2002, a hold of 24 years that's notably long for the area. At 282 m² the property is well over the postcode median (169 m² across 10 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £862,000 sits 175.6% above the 2002 sale of £312,800. On a £-per-square-foot basis, the last sale (£103/sq ft) was about 27.6% below the postcode norm. One planning record on file: an extension approved in 2014. Past consents include an extension, meaningful when judging how the property has evolved.
What this property has
Inside
- Bedrooms4
- Bathrooms3
- Open-plan layoutYes
- EnsuiteYes
Outside
- Private gardenWrap around
Building
- Previously extendedYes
- RefurbishedYes
Energy performance
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,360 · Includes VAT
Planning history
18 Ruperra Close has an approved extension on the planning record.
1 application on record at 18 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX
- Mar 2014ExtensionFullOutcome in report
REMOVAL OF EXISTING CONSERVATORY AND CONSTRUCTION ON A NEW EXTENSION
- Documents
- 6 docs on file
- Reference
- 14/00256/DCH
Unlock 18 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX'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- Every decision — granted, refused or withdrawn (1 on record)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 6 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
18 Ruperra Close valuation sits well clear of the typical sold price in this postcode.
£862,000
Modelled from EPC, postcode comparables.
£312,800
Recorded with HM Land Registry.
Sales timeline
7 August 2002Most recent
£312,800
Median price across the last 5 sales in CF3 6HX: £545,000 (2024–2017).
Nearby sales in CF3 6HX
6 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX
Sold Jun 2024
£550,0009 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX
Sold Mar 2024
£680,00011 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX
Sold Mar 2020
£485,00012 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX
Sold Dec 2018
£545,00010 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX
Sold Sept 2017
£432,500
Versus other Ruperra Close homes
On price per m², 18 Ruperra Close runs well behind the street norm.
Price per m²
£1,109
Street avg £2,722
Floor Area
282 m²
Street avg 190 m²
Habitable Rooms
10 rooms
Street avg 8 rooms
CO₂ Emissions
5.8 t/year
Street avg 5.9 t/year
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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
Tyrwinch Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







