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11 Canopus Close, St Mellons, Cardiff, CF3 1NR

Estimated value

£280,000

  • Since the 1998 sale (£65,000)+331%
  • Against CF3 1NR's recent median (£233,000)+20%

Newest record on this page: April 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
3
Floor area
76 m²
818 sq ft
Energy rating
D
Score 66
Council tax
Band E
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

£280,000

  • Against its 1998 sale (£65,000)+331%
  • Against CF3 1NR's recent median (£233,000)+20%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 11 Canopus Close is modelled from its 76 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF3 1NR. 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

    76 m² from the EPC lodged in August 2012

  • Sales of this home

    2 sales recorded, the latest in 1998

  • Recent sales in CF3 1NR

    5 sales, median £233,000 (2026–2023)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: April 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull 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.

11 Canopus Close's modelled value sits at over four times its earliest registered sale price (1997).

Sales timeline

  1. 23 April 1998Most recent

    £65,000

    +1.6%over 10 months

  2. 26 June 1997

    £64,000

Median price across the last 5 sales in CF3 1NR: £233,000 (2026–2023).

Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks 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 11 Canopus Close

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

11 Canopus Close is a three-bedroom detached house in St. Mellons, Cardiff, Cardiff (CF3 1NR). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (August 2012) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 83), a 2-band jump. The latest certificate is from August 2012, so improvements made since then won't be reflected. Other recorded features include a conservatory.

Untraded for 28 years, with the last transfer in April 1998. Across 1997–1998, sale prices on this property compounded at 1.6% per year. Today's modelled estimate of £280,000 sits 330.8% above the 1998 sale of £65,000. On a £-per-square-foot basis, the last sale (£79/sq ft) was about 51.1% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs).

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

  • Bedrooms3
  • Open-plan layoutYes
  • Dining roomYes
  • ConservatoryYes

Outside

  • Private gardenYes
  • GarageYes

Building

  • Central heatingYes
Before you decide

Everything you need to know about 11 Canopus Close

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

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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.

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 19 Aug 2022

Current Certificate
Aug 2012

EPC Rating

A
B
C
D
D66
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
3.0 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 19 August 2022

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against 11 Canopus Close, St Mellons, Cardiff, CF3 1NR, sourced from the PlanIt planning register.

11 Canopus Close has no planning applications on record.

A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.

On the street

Versus other Canopus Close homes

Four headline reads against 16 similar houses on this street, drawn from the latest EPC and Land Registry data.

On price per m², 11 Canopus Close runs well behind the street norm.

Price per m²

£855

Street avg £2,516

Strongly below

Floor Area

76 m²

Street avg 71 m²

Strongly above

Habitable Rooms

5 rooms

Street avg 5 rooms

Above

CO₂ Emissions

3.0 t/year

Street avg 2.3 t/year

Strongly below
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

0.2 km

Ty Coch Court — bus stop.

Nearest stops

  • Ty Coch CourtBus stop154m
  • The MountBus stop162m
  • Tarwick DriveBus stop169m
  • Hendre RoadBus stop198m

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 2 HomeBuyer Report

Late 20th centuryDetached HouseEPC D

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £545 · 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.
£256k

1 Duncan Close, St Mellons

CF3 1NP

3 bed1 bath
£246k

1 Meadvale Court, Meadvale Road

CF3 1UG

3 bed2 bath
£213k

1 Abergele Road, Rumney

CF3 1RR

3 bed1 bath
£203k

1 Dovey Close, Rumney

CF3 1RJ

3 bed
£215k

1 Llanina Grove, Rumney

CF3 1SW

4 bed
£205k

1 Canopus Close, St Mellons

CF3 1NR

2 bed1 bath
£214k

1 Meadvale Road

CF3 1UF

£213k

1 Heol Newydd

CF3 1DW

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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 11 Canopus Close is modelled from its 76 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF3 1NR. 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 11 Canopus 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 11 Canopus Close was lodged in August 2012 at band D and expired in August 2022, so a new one is needed to sell or let. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 11 Canopus 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 1NR.
Council tax band
11 Canopus Close is in council tax band E. 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 11 Canopus Close, St Mellons, Cardiff, CF3 1NR. Each answer is also embedded as structured data for search engines.

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