William Street - NP12 1NX
Key Postcode Insights
NP12 1NX is a residential postcode situated on William Street, Hollybush, Blackwood, NP12 with 25 addresses.
It ranks as the 958th largest and 767th most expensive of the 1,371 postcodes in the NP12 area. The most common property type is a period house built between 1800 and 1911.
The postcode contains a total of 25 properties: 25 houses.
- Ave. Sale Price
- £178,799
- 10 Year change
- up 79.8%
- Ave. Rental Price
- £973pcm
- 10 Year change
- up 75.3%
- Ave. £ per ft²
- £183/ft²
- Ave. Gross Yield
- 6.5%/year/yr
Key Postcode Insights
NP12 1NX is a residential postcode situated on William Street, Hollybush, Blackwood, NP12 with 25 addresses.
It ranks as the 958th largest and 767th most expensive of the 1,371 postcodes in the NP12 area. The most common property type is a period house built between 1800 and 1911.
The postcode contains a total of 25 properties: 25 houses.
- Ave. Sale Price
- £178,799
- 10 Year change
- up 79.8%
- Ave. Rental Price
- £973pcm
- 10 Year change
- up 75.3%
- Ave. £ per ft²
- £183/ft²
- Ave. Gross Yield
- 6.5%/year/yr
Explore Propertiesin NP12 1NX
- 1 William Street
Unknown
- 2 William Street
3 Bed Period House
- 3 William Street
Unknown
- 4 William Street
Unknown
- 5 William Street
Unknown
Sales Market Trends
The last sale in NP12 1NX sold for £97,000 on 25th July 2025. Since then prices are up an average of 12.0%.
The current average value in the postcode is £178,799.
The NP12 1NX Sales Market has increased by 79.8% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 3% | £178,799 |
| June 2025 | 3.4% | £173,645 |
| June 2024 | 0.1% | £167,974 |
| June 2023 | 4.4% | £167,807 |
| June 2022 | 17.2% | £160,791 |
| June 2021 | 10.8% | £137,234 |
| June 2020 | 4.5% | £123,896 |
| June 2019 | 9.5% | £118,616 |
| June 2018 | 5.4% | £108,341 |
| June 2017 | 3.4% | £102,783 |
| June 2016 | 1.2% | £99,451 |
| June 2015 | 2.5% | £98,282 |
| June 2014 | 6.6% | £95,861 |
| June 2013 | -3.4% | £89,920 |
| June 2012 | -0.2% | £93,064 |
| June 2011 | -1.6% | £93,293 |
| June 2010 | 1.3% | £94,839 |
| June 2009 | -14.5% | £93,639 |
| June 2008 | 2.1% | £109,463 |
| June 2007 | 0% | £107,240 |
Rental Market Trends
The current average rental value in the postcode is £973.
The NP12 1NX Rental Market has increased by 75.3% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 1.7% | £973pcm |
| June 2025 | 5.1% | £957pcm |
| June 2024 | 5.5% | £911pcm |
| June 2023 | 6.6% | £863pcm |
| June 2022 | 14.6% | £809pcm |
| June 2021 | 10% | £706pcm |
| June 2020 | 4.8% | £641pcm |
| June 2019 | 3.4% | £612pcm |
| June 2018 | 2.7% | £592pcm |
| June 2017 | 3.8% | £576pcm |
| June 2016 | 3.7% | £555pcm |
| June 2015 | 0.5% | £535pcm |
| June 2014 | 2% | £533pcm |
| June 2013 | -1.6% | £522pcm |
| June 2012 | -0.7% | £531pcm |
| June 2011 | 2.7% | £535pcm |
| June 2010 | 3.3% | £521pcm |
| June 2009 | -4% | £504pcm |
| June 2008 | 0.1% | £525pcm |
| June 2007 | 0% | £524pcm |
Sales History
The last sale was on 25th July 2025 for £97,000 and since then the market in the area has increased by 12.0%. The postcode has had a total of 26 sales since 1995.
NP12 1NX has seen 3 sales in the last three years and 1 sale in the last twelve months.
- Sold Jul 2025£97,000 | 3 Bed House27, William Street, Blackwood, NP12 1NX27, William Street, Blackwood, NP12 1NX
- Sold May 2024£120,000 | 3 Bed House2, William Street, Blackwood, NP12 1NX2, William Street, Blackwood, NP12 1NX
- Sold Feb 2023£110,500 | 3 Bed House20, William Street, Blackwood, NP12 1NX20, William Street, Blackwood, NP12 1NX
- Sold Jun 2022£155,000 | 3 Bed House10, William Street, Blackwood, NP12 1NX10, William Street, Blackwood, NP12 1NX
- Sold Sep 2020£117,000 | 3 Bed House10, William Street, Blackwood, NP12 1NX10, William Street, Blackwood, NP12 1NX
Nearby Postcodes
NP12 1NX is the 958th largest and the 767th most expensive postcode out of the 1,371 postcodes in the NP12 area.
- NP12 1NZ, George Street, Argoed, Blackwood, NP12NP12 1NZ18 Addresses|61 m away
- NP12 1PA, Hall Street, Blackwood, NP12NP12 1PA6 Addresses|65 m away
- NP12 1AX, Bridge Street, Blackwood, NP12NP12 1AX25 Addresses|67 m away
- NP12 1NW, William Street, Hollybush, Blackwood, NP12NP12 1NW27 Addresses|75 m away
- NP12 1AA, High Street, Fleur De Lis, Blackwood, NP12NP12 1AA27 Addresses|86 m away
Property Types
- 11 period houses built between 1800 and 1911
- 1 house of an unknown age
- 13 other addresses of unknown type
- period house (11)
- house (1)
- Unknown (13)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 11 properties.
- The most common rating is D.
- A (0)
- E (0)
- B (0)
- F (2)
- C (2)
- G (0)
- D (7)
- No EPC (14)
Top 3 Most Expensive Sales
- Sold Aug 2025£335,000 | 5 Bed Flat2 The Old Court, William Street, Blackwood, NP12 1NU2 The Old Court, William Street, Blackwood, NP12 1NU
- Sold Jun 2025£188,000 | 4 Bed House46, William Street, Blackwood, NP12 1NW46, William Street, Blackwood, NP12 1NW
- Sold Apr 2025£187,500 | 3 Bed House82, William Street, Blackwood, NP12 1NU82, William Street, Blackwood, NP12 1NU
Schools Nearby
Public Transport Nearby
The closest station to NP12 1NX is Pengam station, which is 2.6 kilometres away.
- Pengam|2.6 km away
- Hengoed|2.9 km away
- Gilfach Fargoed|3.1 km away
- Newbridge|3.5 km away
