Over the past 24 years, there have been 22 property sales recorded in the NP12 3TH postcode area. The highest sale price reached £185,000, while the most recent sale was a property sold in September 2025 for £145,000.

The estimated average property value in NP12 3TH currently stands at £144,464, which is approximately 41.5% 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 £1,797.

Property prices in NP12 3TH have risen by 8.1% over the past year , with a total increase of 48.1% over the past five years, and a long-term rise of 87.6% over the past decade.

The most common type of property sold in the area is semi-detached, making up around 91% of transactions , followed by terraced.

Housing in NP12 3TH is predominantly owner-occupied, with an estimated 100% of homes being lived in by the owners.

Click on the map to change the analyzed area

Property Sales

13 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

Today
£122,841
streetscan.co.uk estimate
7 May 2021
£94,750
29 Feb 2008
£71,750

17 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

🏠 Semi-detached
🛏️ 4bed
📐 883 sq ft
Today
£168,526
streetscan.co.uk estimate
14 Mar 2022
£145,150
More details

2 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

Today
£146,164
streetscan.co.uk estimate
20 Aug 2004
£70,000

29 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

🏠 Semi-detached
🛏️ 4bed
📐 872 sq ft
Today
£149,414
streetscan.co.uk estimate
13 Jul 2007
£88,500
20 May 2002
£22,500
More details

30 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

Today
£149,860
streetscan.co.uk estimate
6 Dec 2021
£125,000
18 Jul 2003
£39,500

35 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

🏠 Semi-detached
🛏️ 5bed
📐 1130 sq ft
Today
£141,867
streetscan.co.uk estimate
2 Mar 2012
£71,000
More details

39 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

🏠 Semi-detached
🛏️ 4bed
📐 861 sq ft
Today
£196,023
streetscan.co.uk estimate
25 Nov 2022
£185,000
19 Jun 2020
£102,500
View +2 more
More details

40 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

Today
£118,987
streetscan.co.uk estimate
10 Jan 2005
£60,000
29 Jun 2001
£30,000

41 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

Today
£145,000
streetscan.co.uk estimate
19 Sep 2025
£145,000
9 Dec 2020
£90,000

46 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

Today
£145,417
streetscan.co.uk estimate
25 Jul 2014
£80,000
2 Feb 2011
£80,000

5 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

🏠 Semi-detached
🛏️ 4bed
📐 904 sq ft
Today
£123,227
streetscan.co.uk estimate
31 May 2019
£85,000
More details

6 Salway Avenue, Pengam, Blackwood, Caerphilly, NP12 3TH

🏠 Semi-detached
🛏️ 4bed
📐 876 sq ft
Today
£136,140
streetscan.co.uk estimate
25 Nov 2016
£80,000
17 Feb 2012
£62,500
More details

Area Insights

Data Sources

Properties at NP12 3TH appear twenty-two times in the Land Registry records, with the latest transaction recorded on 19 Sep 2025. It also has six Energy Performance Certificates (EPC) entries, the earliest dating back to 10 Nov 2021. 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.