Skip to content
UK Property Looker

18 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX

1 planning record

Estimated value

£972,000

  • Since the 2025 sale (£955,000)+2%
  • Against CF3 6HX's recent median (£550,000)+77%

Newest record on this page: May 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Bedrooms
4
Bathrooms
3
Floor area
282 m²
3035 sq ft
Energy rating
C
Score 78
Council tax
Band H
Tenure
Owner Occupied
Get directions (opens in a new tab)
Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£972,000

  • Against its 2025 sale (£955,000)+2%
  • Against CF3 6HX's recent median (£550,000)+77%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 18 Ruperra Close is modelled from its 282 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF3 6HX. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    282 m² from the EPC lodged in April 2025

  • Sales of this home

    2 sales recorded, the latest in 2025

  • Recent sales in CF3 6HX

    5 sales, median £550,000 (2026–2018)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: May 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 applicationFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

Latest sale on 18 Ruperra Close was the highest on Land Registry record across the postcode.

Sales timeline

  1. 25 November 2025Most recent

    £955,000

    +205.3%over 23 years

  2. 7 August 2002

    £312,800

Median price across the last 5 sales in CF3 6HX: £550,000 (2026–2018).

Risks

What this page doesn't show

1 potential issue has already been flagged for 18 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX. The detail, evidence and what to ask about it are in the Risks Report.
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

Overview

About 18 Ruperra Close

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

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.

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. Most recent transfer was November 2025 at £955,000 — fresh data. One planning record on file: an extension approved in 2014. Past consents include an extension, meaningful when judging how the property has evolved. Across 2002–2025, sale prices on this property compounded at 4.9% per year. On a £-per-square-foot basis, the last sale (£315/sq ft) was about 101.9% above the typical sold price in the postcode.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms4
  • Bathrooms3
  • Open-plan layoutYes
  • EnsuiteYes

Outside

  • Private gardenWrap around

Building

  • Previously extendedYes
  • RefurbishedYes
Before you decide

Everything you need to know about 18 Ruperra Close

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

Pick your report · from £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate
Apr 2025

EPC Rating

A
B
C
C78
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
5.8 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 16 April 2035

8 years remaining
Planning

Planning history

Applications and permits filed against 18 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX, sourced from the PlanIt planning register.

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

1decisions1extensions6documents1nearby
  1. Mar 2014
    ExtensionFull
    Outcome in report

    REMOVAL OF EXISTING CONSERVATORY AND CONSTRUCTION ON A NEW EXTENSION

    Documents
    6 docs on file
    Reference
    14/00256/DCH
    Full record in report

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
£14.99one-off · instant

One time fee only - money back guarantee

On the street

Versus other Ruperra Close homes

Four headline reads against 10 similar houses on this street, drawn from the latest EPC and Land Registry data.

On floor area, 18 Ruperra Close stands well clear of the street.

Price per m²

£3,387

Street avg £2,889

Strongly above

Floor Area

282 m²

Street avg 191 m²

Strongly above

Habitable Rooms

10 rooms

Street avg 8 rooms

Strongly above

CO₂ Emissions

5.8 t/year

Street avg 5.7 t/year

On par
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Cardiff district page.
Full Cardiff report

Crime

242/mo

Falling year-on-year across the wider district.

Nearest stop

0.3 km

Tyrwinch Road — bus stop.

Nearest stops

  • Tyrwinch RoadBus stop254m
  • Okehampton AvenueBus stop350m
  • Bluebell DriveBus stop353m
  • Bluebell DriveBus stop414m

Most reported crime locally

  • Violence & Sexual Offences1,550 reports36%
  • Anti-social Behaviour627 reports14%
  • Public Order468 reports11%
  • Criminal Damage & Arson424 reports10%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

SDL Surveying

Get a survey for this property

Level 3 Building Survey

21st centuryDetached HouseEPC CExtended multiple times (2+ extensions)

Because the property has been extended more than once, we believe a Level 3 building survey should be considered.

From £1,495 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£630k

1 Tai Derwen, Cefn Mably

CF3 6XR

4 bed2 bath
£551k

1 Ruperra Close, Old St Mellons

CF3 6HX

4 bed2 bath
£715k

1 Minorca Cottages, Michaelston Y Fedw

CF3 6XX

5 bed
£368k

1 Rees Drive, Old St Mellons

CF3 6AS

3 bed2 bath
£352k

1 Began Road, Old St Mellons

CF3 6XJ

3 bed1 bath
£352k

1 Rhodfa Hughes, Old St Mellons

CF3 6YY

3 bed2 bath
£352k

1 Stryd Boyd, Old St Mellons

CF3 6YS

3 bed3 bath
£348k

1 Clos Thomas, Old St Mellons

CF3 6YR

3 bed2 bath

Property research, connected

Get up to date data on unlimited properties per month

Explore sale histories, valuations, energy ratings and local areas. Ask the assistant to connect the details and take your research further.

Start your research
Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 18 Ruperra Close is modelled from its 282 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF3 6HX. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 2 sales are recorded for 18 Ruperra Close. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 18 Ruperra Close was lodged in April 2025 at band C and is valid until April 2035. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 18 Ruperra Close. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 18 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF3 6HX.
Council tax band
18 Ruperra Close is in council tax band H. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 18 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX. Each answer is also embedded as structured data for search engines.

Know this home? Think our valuation is wrong?

Leave a note for other visitors about work done or anything the records miss, and say what you think it's worth. It takes about two minutes.

Keep exploring