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

EPC A3 sales on record4 planning records

Estimated value

£916,000

  • Since the 2026 sale (£875,000)+5%
  • Against CF3 6HX's recent median (£550,000)+67%

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
Floor area
279 m²
3003 sq ft
Energy rating
A
Score 93
Council tax
Band G
Tenure
Owner Occupied
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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

£916,000

  • Against its 2026 sale (£875,000)+5%
  • Against CF3 6HX's recent median (£550,000)+67%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 20 Ruperra Close is modelled from its 279 m² EPC floor area, its 3 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

    279 m² from the EPC lodged in May 2025

  • Sales of this home

    3 sales recorded, the latest in 2026

  • Recent sales in CF3 6HX

    5 sales, median £550,000 (2025–2018)

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 of 4 applicationsFull 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.

20 Ruperra Close has more than quadrupled in price since its earliest registered sale in 1995.

Sales timeline

  1. 27 May 2026Most recent

    £875,000

    +143.1%over 22 years

  2. 9 December 2003

    £360,000

    +108.1%over 8 years

  3. 13 August 1995

    £173,000

Median price across the last 5 sales in CF3 6HX: £550,000 (2025–2018).

Risks

What this page doesn't show

1 potential issue has already been flagged for 20 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 20 Ruperra Close

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

20 Ruperra Close is a four-bedroom detached house in Old St. Mellons, Cardiff, Cardiff (CF3 6HX). It has a recorded floor area of 279 m² (around 3003 sq ft), construction records dating it to 1991-1995 and council tax band G. The latest certificate (May 2025) returns an A (score 93), the top energy band on the EPC scale.

4 planning records sit against the property, 3 approved, 0 refused, 1 pending. Past consents include an extension, meaningful when judging how the property has evolved. An active application for an extension is awaiting a decision. At 279 m² the property is well over the postcode median (169 m² across 10 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. Most recent transfer was May 2026 at £875,000 — fresh data. Across 1995–2026, sale prices on this property compounded at 5.4% per year. On a £-per-square-foot basis, the last sale (£291/sq ft) was about 75.9% 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
  • CloakroomYes

Outside

  • Private gardenYes
  • GarageYes

Building

  • Central heatingYes
Before you decide

Everything you need to know about 20 Ruperra Close

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

Larger development activity nearby

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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.

20 Ruperra Close ranks among the most efficient homes in the postcode for energy use.

Current Certificate
May 2025

EPC Rating

A
A93
B
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
2.3 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 27 May 2035

8 years remaining
Planning

Planning history

Applications and permits filed against 20 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX, sourced from the PlanIt planning register.

An application for a porch is currently awaiting a decision.

4 applications on record at 20 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX

1 live now
3decisions4extensions30documents1nearby
  1. Jun 2015
    ExtensionFull
    Outcome in report

    Extension: Single storey · Rear of property

    NEW GROUND FLOOR, SINGLE EXTENSION TO CREATE UTILITY ROOM. NEW FIRST FLOOR EXTENSION TO CREATE NEW BEDROOM. SINGLE STOREY COVERED CANOPY TO REAR ELEVATIONS

    Documents
    8 docs on file
    Reference
    15/00865/DCH
    Full record in report
  2. More recent applications — locked
  3. PorchDecision
  4. ExtensionDecision

+ 1 more application in the report

Unlock 20 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 (3 on record)
  • All 4 applications on this property in full, plus 1 notable nearby
  • The 30 documents, officer reports & conditions
  • What the pattern means for extending or converting here
£14.99one-off · instant

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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 years held, 20 Ruperra Close runs well behind the street norm.

Price per m²

£3,136

Street avg £2,914

Above

Floor Area

279 m²

Street avg 191 m²

Strongly above

Habitable Rooms

9 rooms

Street avg 8 rooms

Above

CO₂ Emissions

2.3 t/year

Street avg 6.1 t/year

Strongly above
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

Late 20th centuryDetached HouseEPC AExtended 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

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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 20 Ruperra Close is modelled from its 279 m² EPC floor area, its 3 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. 3 sales are recorded for 20 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 20 Ruperra Close was lodged in May 2025 at band A and is valid until May 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. 4 applications are matched to 20 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
20 Ruperra Close is in council tax band G. 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 20 Ruperra Close, Old St Mellons, Cardiff, CF3 6HX. Each answer is also embedded as structured data for search engines.

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