How much is 21 Allen Close, Cardiff, CF3 5DH worth?
Estimated value — September 2026
£483,000
Likely range £480,000 – £486,000
Latest recorded sale December 2002
7%
confidence
Low
Property details
Detached house
Allen Close · Cardiff · CF3 5DH
Energy performance
Mains Gas (Not Community) · EPC 2178-0092-6219-9342-9910 · inspected January 2012
Address
- District
- Cardiff
- County
- Cardiff
Value over time
- Modelled value
- Recorded sale
- 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 | Recorded sale |
|---|---|---|
| 2000 | £135,404 | — |
| 2001 | £155,053 | — |
| 2002 | £188,500 | £188,500 |
| 2003 | £216,078 | — |
| 2004 | £258,352 | — |
| 2005 | £260,345 | — |
| 2006 | £272,838 | — |
| 2007 | £281,318 | — |
| 2008 | £254,768 | — |
| 2009 | £260,252 | — |
| 2010 | £268,868 | — |
| 2011 | £276,312 | — |
| 2012 | £274,862 | — |
| 2013 | £283,563 | — |
| 2014 | £310,385 | — |
| 2015 | £323,403 | — |
| 2016 | £336,489 | — |
| 2017 | £351,993 | — |
| 2018 | £369,332 | — |
| 2019 | £380,795 | — |
| 2020 | £393,512 | — |
| 2021 | £429,200 | — |
| 2022 | £473,452 | — |
| 2023 | £463,975 | — |
| 2024 | £470,021 | — |
| 2025 | £478,087 | — |
| 2026 | £480,369 | — |
Sale history
Mortgage calculator
£2,294
Estimated monthly repayment
£434,700
Loan amount
£391,095
Total interest
£825,795
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
- 3 Allen Close, Old St Mellons, Cardiff, CF3 5DH£480,000 · 2024£495,000
- 11 Allen Close, Cardiff, CF3 5DH£280,000 · 2013£464,000
- 23 Allen Close, Cardiff, CF3 5DH£281,500 · 2012£499,000
- 8 Allen Close, Cardiff, CF3 5DH£249,999 · 2011£435,000
- 5 Allen Close, Cardiff, CF3 5DH£278,950 · 2011£480,000
- 9 Allen Close, Cardiff, CF3 5DH£260,000 · 2009£484,000
- 2 Allen Close, Cardiff, CF3 5DH£267,000 · 2005£497,000
- 15 Allen Close, Cardiff, CF3 5DH£199,995 · 2003£446,000
- 4 Allen Close, Cardiff, CF3 5DH£175,000 · 2002£473,000
- 31 Allen Close, Cardiff, CF3 5DH£167,500 · 2002£453,000
About this property
21 Allen Close, Cardiff, CF3 5DH is a detached house on Allen Close in Cardiff. Stede's estimated value for September 2026 is £483,000. The likely range is £480,000 to £486,000. It is the average of 2 independent methods that re-index recorded sale prices to today. The confidence score is 7 out of 100 (low), based on how recent the most recent recorded sale is.
It last sold in December 2002 for £188,500. It has 2 sales on record, the earliest in 1997. The current estimate is 156% higher than that price. The current owner has held it for about 24 years.
Its EPC energy-efficiency rating is band D (66 out of 100), with a potential of band C (71) after the recommended improvements. The certificate records a total floor area of 133 m² (1,432 sq ft). It was lodged in January 2012.
The modelled value is up 1% over the past year and up 18% over the past five years.
Among 10 nearby properties Stede tracks in the CF3 area, estimated values run from £435,000 to £499,000. This detached house's £483,000 sits around the middle of that range.
Common questions
How much is 21 Allen Close, Cardiff, CF3 5DH worth?
Stede estimates 21 Allen Close, Cardiff, CF3 5DH is worth £483,000 as of September 2026, within a likely range of £480,000 to £486,000. The estimate is generated automatically from recorded sale prices and the UK House Price Index, and is not a formal valuation.
When did 21 Allen Close, Cardiff, CF3 5DH last sell?
It last sold in December 2002 for £188,500. There are 2 sales on record, the earliest in 1997.
What type of property is 21 Allen Close, Cardiff, CF3 5DH?
It is recorded as a Detached house on Allen Close in the CF3 postcode area.
What is the EPC rating of 21 Allen Close, Cardiff, CF3 5DH?
21 Allen Close, Cardiff, CF3 5DH has an EPC energy-efficiency rating of band D (66 out of 100). Its potential rating after the recommended improvements is band C (71). The certificate records a floor area of 133 m² (1,432 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 7 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
2
Recorded sales on file
2002
Most recent recorded sale