Over the past 30 years, there have been 62 property sales recorded in the CF3 1NP postcode area. The highest sale price reached £250,000, while the most recent sale was for a semi-detached house sold in August 2025 for £250,000.

The estimated average property value in CF3 1NP currently stands at £235,098, which is approximately 30.3% lower than the city average - making it a relatively affordable option for buyers.

In terms of size, the average price per square metre is approximately £3,418.

Property prices in CF3 1NP have risen by 3.8% over the past year , with a total increase of 27.5% over the past five years, and a long-term rise of 57.4% over the past decade.

The most common type of property sold in the area is semi-detached, making up around 95% of transactions , followed by terraced.

Housing in CF3 1NP is predominantly owner-occupied, with an estimated 82% of homes being lived in by the owners.

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Property Sales

1 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 4bed
📐 753 sq ft
Today
£244,922
streetscan.co.uk estimate
11 Jan 2019
£182,500
More details

10 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 4bed
📐 743 sq ft
Today
£233,210
streetscan.co.uk estimate
15 Feb 2019
£174,000
1 Sep 1997
£59,000
More details

11 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 4bed
📐 592 sq ft
Today
£213,954
streetscan.co.uk estimate
18 Nov 2022
£210,000
3 Nov 2006
£124,999
View +2 more
More details

12 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 3bed
📐 614 sq ft
Today
£212,464
streetscan.co.uk estimate
15 Sep 2014
£130,000
8 Oct 1999
£42,500
More details

13 Duncan Close, St Mellons, Cardiff, CF3 1NP

Today
£267,280
streetscan.co.uk estimate
5 Dec 1997
£52,000
24 Oct 1997
£55,000

14 Duncan Close, St Mellons, Cardiff, CF3 1NP

Today
£277,213
streetscan.co.uk estimate
21 Mar 1997
£48,000

15 Duncan Close, St Mellons, Cardiff, CF3 1NP

Today
£311,898
streetscan.co.uk estimate
23 Jul 1997
£57,950

16 Duncan Close, St Mellons, Cardiff, CF3 1NP

Today
£234,687
streetscan.co.uk estimate
12 Oct 2000
£58,900

17 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 5bed
📐 710 sq ft
Today
£201,065
streetscan.co.uk estimate
27 May 2016
£133,000
14 Aug 2000
£62,950
View +1 more
More details

18 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 5bed
📐 732 sq ft
Today
£252,659
streetscan.co.uk estimate
28 Feb 2014
£145,500
22 Nov 1996
£49,500
More details

19 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 5bed
📐 818 sq ft
Today
£217,363
streetscan.co.uk estimate
23 Sep 2024
£212,500
26 Sep 2016
£151,000
More details

2 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 5bed
📐 743 sq ft
Today
£250,487
streetscan.co.uk estimate
29 Aug 2025
£250,000
20 Dec 2019
£172,000
More details

20 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 4bed
📐 603 sq ft
Today
£217,238
streetscan.co.uk estimate
20 Apr 2005
£112,000
14 Apr 2000
£45,000
More details

21 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 4bed
📐 581 sq ft
Today
£203,881
streetscan.co.uk estimate
8 Apr 2021
£166,000
10 Jul 2015
£136,000
View +4 more
More details

23 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 6bed
📐 872 sq ft
Today
£245,478
streetscan.co.uk estimate
26 Aug 2025
£245,000
10 Jun 2016
£148,000
View +2 more
More details

24 Duncan Close, St Mellons, Cardiff, CF3 1NP

Today
£268,094
streetscan.co.uk estimate
4 Aug 2006
£145,000
24 Jul 1998
£55,000

25 Duncan Close, St Mellons, Cardiff, CF3 1NP

Today
£255,818
streetscan.co.uk estimate
10 May 1996
£43,300

26 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 5bed
📐 743 sq ft
Today
£245,272
streetscan.co.uk estimate
1 Feb 2019
£183,000
17 Jul 2015
£152,500
View +3 more
More details

3 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 3bed
📐 614 sq ft
Today
£197,007
streetscan.co.uk estimate
26 Apr 2024
£188,000
28 May 2019
£159,995
View +5 more
More details

4 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Terraced
🛏️ 4bed
📐 635 sq ft
Today
£224,365
streetscan.co.uk estimate
15 Feb 2019
£165,000
20 Aug 1998
£44,200
More details

5 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 4bed
📐 743 sq ft
Today
£242,722
streetscan.co.uk estimate
29 Sep 2017
£170,000
28 Jul 2006
£125,000
More details

6 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 4bed
📐 732 sq ft
Today
£235,983
streetscan.co.uk estimate
31 Mar 2016
£160,000
2 Jun 2000
£66,000
More details

8 Duncan Close, St Mellons, Cardiff, CF3 1NP

🏠 Semi-detached
🛏️ 4bed
📐 764 sq ft
Today
£240,225
streetscan.co.uk estimate
26 Jul 2019
£179,000
30 Jun 2016
£160,000
View +3 more
More details

9 Duncan Close, St Mellons, Cardiff, CF3 1NP

Today
£280,101
streetscan.co.uk estimate
20 Nov 1996
£48,500

Area Insights

Data Sources

Properties at CF3 1NP appear sixty-two times in the Land Registry records, with the latest transaction recorded on 29 Aug 2025. It also has seventeen Energy Performance Certificates (EPC) entries, the earliest dating back to 14 Jun 2019. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.

Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.