How much is 21 Canopus Close, St Mellons, Cardiff, CF3 1NR worth?
Estimated value — October 2026
£313,000
Likely range £313,000 – £313,000
Latest recorded sale July 1996
0%
confidence
Low
Property details
Semi-detached house
Canopus Close · Cardiff · CF3 1NR
Energy performance
Mains Gas (Not Community) · EPC 0241-3058-2202-6196-7204 · inspected February 2026
Address
- District
- Cardiff
- County
- Cardiff
Value over time
- Modelled value
- Today's estimate
Modelled by indexing this property's most recent recorded sale, month by month, against the UK House Price Index for its area and property type. Earlier sales are shown as recorded. Today's estimate also blends in the other valuation methods, so it can sit a little off the line.
View as a table
| Year | Modelled value |
|---|---|
| 2000 | £76,739 |
| 2001 | £88,305 |
| 2002 | £109,488 |
| 2003 | £129,825 |
| 2004 | £158,659 |
| 2005 | £161,788 |
| 2006 | £170,633 |
| 2007 | £174,449 |
| 2008 | £156,123 |
| 2009 | £160,561 |
| 2010 | £164,190 |
| 2011 | £168,977 |
| 2012 | £169,415 |
| 2013 | £175,047 |
| 2014 | £192,138 |
| 2015 | £200,354 |
| 2016 | £207,304 |
| 2017 | £219,014 |
| 2018 | £229,316 |
| 2019 | £238,143 |
| 2020 | £245,527 |
| 2021 | £269,552 |
| 2022 | £301,240 |
| 2023 | £296,129 |
| 2024 | £299,672 |
| 2025 | £306,117 |
| 2026 | £312,565 |
Sale history
Mortgage calculator
£1,487
Estimated monthly repayment
£281,700
Loan amount
£253,443
Total interest
£535,143
Total repayable
A guide only, based on a capital repayment mortgage held at a constant interest rate for the full term. Not a mortgage offer or financial advice.
Related properties
- 2 Canopus Close, St Mellons, Cardiff, CF3 1NR£289,000 · 2026£292,000
- 13 Canopus Close, St Mellons, Cardiff, CF3 1NR£290,000 · 2024£308,000
- 6 Canopus Close, St Mellons, Cardiff, CF3 1NR£55,000 · 1997£294,000
- 3 Canopus Close, St Mellons, Cardiff, CF3 1NR£51,500 · 1995£313,000
- 8 Canopus Close, St Mellons, Cardiff, CF3 1NR£233,000 · 2023£243,000
- 25 Canopus Close, St Mellons, Cardiff, CF3 1NR£215,000 · 2021£252,000
- 9 Canopus Close, St Mellons, Cardiff, CF3 1NR£215,000 · 2021£261,000
- 23 Canopus Close, St Mellons, Cardiff, CF3 1NR£140,000 · 2014£243,000
- 19 Canopus Close, St Mellons, Cardiff, CF3 1NR£133,000 · 2009£268,000
- 14 Canopus Close, St Mellons, Cardiff, CF3 1NR£89,950 · 2002£264,000
About this property
21 Canopus Close, St Mellons, Cardiff, CF3 1NR is a semi-detached house on Canopus Close in Cardiff. Stede's estimated value for October 2026 is £313,000. It is the average of 2 independent methods that re-index recorded sale prices to today. The confidence score is 0 out of 100 (low), based on how recent the most recent recorded sale is.
It last sold in July 1996 for £51,995. The current estimate is 502% higher than that price. The current owner has held it for about 30 years.
Its EPC energy-efficiency rating is band C (70 out of 100). The certificate records a total floor area of 85 m² (915 sq ft). It was lodged in February 2026.
The modelled value is up 4% over the past year and up 20% over the past five years.
Among 10 nearby properties Stede tracks in the CF3 area, estimated values run from £243,000 to £313,000. This semi-detached house's £313,000 sits toward the upper end of that range.
Common questions
How much is 21 Canopus Close, St Mellons, Cardiff, CF3 1NR worth?
Stede estimates 21 Canopus Close, St Mellons, Cardiff, CF3 1NR is worth £313,000 as of October 2026. The estimate is generated automatically from recorded sale prices and the UK House Price Index, and is not a formal valuation.
When did 21 Canopus Close, St Mellons, Cardiff, CF3 1NR last sell?
It last sold in July 1996 for £51,995.
What type of property is 21 Canopus Close, St Mellons, Cardiff, CF3 1NR?
It is recorded as a Semi-detached house on Canopus Close in the CF3 postcode area.
What is the EPC rating of 21 Canopus Close, St Mellons, Cardiff, CF3 1NR?
21 Canopus Close, St Mellons, Cardiff, CF3 1NR has an EPC energy-efficiency rating of band C (70 out of 100). The certificate records a floor area of 85 m² (915 sq ft). EPC data is published by the Ministry of Housing, Communities & Local Government and reflects the most recent certificate on record.
How reliable is this estimate?
The confidence score is 0 out of 100 (low), which reflects how recent the most recent recorded sale is rather than local market volatility. The figure is a data model, not a RICS valuation or Home Report, and should not be used for mortgage or legal decisions.
How does Stede calculate this estimate?
Stede runs 2 independent methods that re-index this property's recorded sale prices to today using the House Price Index for its type and region, then takes the average. Full detail is on the methodology page.
How we calculated this
This estimate averages 2 valuation methods, each re-indexing recorded sale prices to today. The confidence score reflects how recent the most recent recorded sale is.
2
Valuation methods used
1
Recorded sales on file
1996
Most recent recorded sale