Over the past 31 years, there have been 35 property sales recorded in the NP12 3TZ postcode area. The highest sale price reached £345,000, while the most recent sale was for a semi-detached house sold in November 2025 for £205,000.

The estimated average property value in NP12 3TZ currently stands at £248,429, which is roughly in line with the city average (within ±8%), suggesting property prices reflect broader market trends.

In terms of size, the average price per square metre is approximately £2,376.

Property prices in NP12 3TZ have risen by 7.9% over the past year , with a total increase of 41.4% over the past five years , and a long-term rise of 79.5% over the past decade .

The most common type of property sold in the area is semi-detached, making up around 83% of transactions , followed by detached.

Housing in NP12 3TZ is predominantly owner-occupied, with an estimated 88% of homes being lived in by the owners.

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Property Sales

1 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 4bed
📐 915 sq ft
Today
£173,761
streetscan.co.uk estimate
6 Apr 2018
£110,000
More details

10 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 5bed
📐 935 sq ft
Today
£202,854
streetscan.co.uk estimate
27 Jan 2017
£118,000
30 Jan 2015
£110,000
More details

11 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 4bed
📐 1001 sq ft
Today
£241,058
streetscan.co.uk estimate
23 May 2024
£219,000
More details

14 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 5bed
📐 1141 sq ft
Today
£245,123
streetscan.co.uk estimate
31 Mar 2015
£130,000
31 Mar 2015
£130,000
View +1 more
More details

15 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

Today
£297,555
streetscan.co.uk estimate
17 Dec 2009
£155,000
11 Oct 2006
£146,000
16 Feb 2001
£64,500

16 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 5bed
📐 1049 sq ft
Today
£243,336
streetscan.co.uk estimate
8 Dec 2017
£152,000
10 May 2016
£130,000
View +3 more
More details

2 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 4bed
📐 1033 sq ft
Today
£231,454
streetscan.co.uk estimate
7 Mar 2025
£220,000
More details

22 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 4bed
📐 926 sq ft
Today
£112,500
streetscan.co.uk estimate
28 Apr 2023
£100,000
More details

23 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 5bed
📐 1023 sq ft
Today
£208,504
streetscan.co.uk estimate
5 Nov 2025
£205,000
More details

25 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 4bed
📐 924 sq ft
Today
£190,400
streetscan.co.uk estimate
3 Jun 2016
£112,000
13 Feb 1995
£52,000
More details

27 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

Today
£256,383
streetscan.co.uk estimate
27 Sep 1996
£50,750

28 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

Today
£328,135
streetscan.co.uk estimate
29 Aug 2003
£113,055
30 May 2002
£52,250
27 Sep 1996
£45,000

30 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 4bed
📐 969 sq ft
Today
£241,378
streetscan.co.uk estimate
14 Mar 2002
£59,950
More details

31 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 5bed
📐 893 sq ft
Today
£241,208
streetscan.co.uk estimate
28 Sep 2017
£149,995
More details

32 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

Today
£189,210
streetscan.co.uk estimate
12 Oct 1998
£39,750

34 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 6bed
📐 1195 sq ft
Today
£219,623
streetscan.co.uk estimate
11 Oct 2024
£208,550
18 Jun 1999
£49,000
More details

35 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Detached
🛏️ 4bed
📐 1152 sq ft
Today
£406,127
streetscan.co.uk estimate
3 Dec 2020
£310,000
More details

4 St Deinols Close, Pengam, Blackwood, Islwyn, Gwent, NP12 3TZ

🏠 Semi-detached
🛏️ 5bed
📐 1227 sq ft
Today
£226,040
streetscan.co.uk estimate
11 Aug 1995
£42,000
More details

6 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 5bed
📐 1281 sq ft
Today
£250,742
streetscan.co.uk estimate
27 May 2010
£129,000
More details

7 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Detached
🛏️ 4bed
📐 1087 sq ft
Today
£277,538
streetscan.co.uk estimate
28 Oct 2020
£210,000
More details

9 St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Semi-detached
🛏️ 5bed
📐 1098 sq ft
Today
£240,204
streetscan.co.uk estimate
3 Apr 2024
£218,000
More details

The Conifers St Deinols Close, Pengam, Blackwood, Caerphilly, NP12 3TZ

🏠 Detached
🛏️ 4bed
📐 1905 sq ft
Today
£451,980
streetscan.co.uk estimate
15 Dec 2020
£345,000
More details

Area Insights

Data Sources

Properties at NP12 3TZ appear thirty-five times in the Land Registry records, with the latest transaction recorded on 5 Nov 2025. It also has eighteen Energy Performance Certificates (EPC) entries, the earliest dating back to 4 Jun 2020. 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.