House prices in NP12
Median value — November 2026
£216,000
Modelled from 8,254 properties Stede tracks in NP12
Market snapshot
£216,000
Median value
£253,097
Average value
310
Sales in the last 12 months
+5%
Change over the past year
Value over time
- Modelled value
- Projected
Modelled month by month from the UK House Price Index, averaged across every property type Stede tracks here.
View as a table
| Year | Modelled value |
|---|---|
| 2000 | £48,521 |
| 2001 | £51,083 |
| 2002 | £64,261 |
| 2003 | £82,695 |
| 2004 | £106,220 |
| 2005 | £116,094 |
| 2006 | £121,599 |
| 2007 | £127,298 |
| 2008 | £113,982 |
| 2009 | £112,023 |
| 2010 | £108,831 |
| 2011 | £114,920 |
| 2012 | £110,219 |
| 2013 | £111,950 |
| 2014 | £120,403 |
| 2015 | £122,773 |
| 2016 | £124,400 |
| 2017 | £133,699 |
| 2018 | £144,254 |
| 2019 | £146,851 |
| 2020 | £158,183 |
| 2021 | £177,856 |
| 2022 | £200,136 |
| 2023 | £197,479 |
| 2024 | £206,728 |
| 2025 | £208,224 |
| 2026 | £216,000 |
Property types
- Semi-detached house39%£212,000
- Mid-terrace house29%£165,000
- Detached house28%£341,500
- Property3%£252,000
- Flat / Maisonette1%£114,000
Recent sales
- 1 Manor Road, Pontllanfraith, Blackwood, Caerphilly, NP12 2NN£320,000 · 2026£331,000
- 65 Cefn Fforest Avenue, Cefn Fforest, Blackwood, Caerphilly, NP12 3JZ£170,000 · 2026£173,000
- 28 Addison Street, Blackwood, Caerphilly, NP12 1EN£242,000 · 2026£256,000
- 54 Bedwellty Road, Cefn Fforest, Blackwood, Caerphilly, NP12 3HB£230,000 · 2026£225,000
- 42 Cae Collen, Blackwood, Caerphilly, NP12 1FF£185,000 · 2026£199,000
- 15 Broadmead, Pontllanfraith, Blackwood, Caerphilly, NP12 2NJ£195,000 · 2026£207,000
- 20 Islwyn Terrace, Pontllanfraith, Blackwood, Caerphilly, NP12 2LQ£138,000 · 2026£159,000
- 40 Chartist Rise, Pontllanfraith, Blackwood, Caerphilly, NP12 2RR£295,000 · 2026£309,000
Addresses in NP12
- 6 Lewis Street, Blackwood, Caerphilly, NP12 1PX£110,000 · 2024£126,000
- 6 Lime Grove, The Bryn, Blackwood, Caerphilly, NP12 2PX£105,000 · 2006£225,000
- 6 Linden Lea Drive, Blackwood, Islwyn, Gwent, NP12 1FR£80,000 · 2005£177,000
- 6 Llwyn Coed, Blackwood, Caerphilly, NP12 1FT£83,950 · 1998£328,000
- 6 Llwyn-On Crescent, Oakdale, Blackwood, Caerphilly, NP12 0ND£193,000 · 2025£213,000
- 6 Llwynbach Terrace, Hollybush, Blackwood, Caerphilly, NP12 0SH£48,000 · 2004£130,000
- 6 Llwynon Crescent, Oakdale, Blackwood, Caerphilly, NP12 0ND£91,500 · 2012£188,000
- 6 Llys Cyncoed, Oakdale, Blackwood, Caerphilly, NP12 0NQ£167,995 · 2005£299,000
- 6 Lon Pennant, Cwmgelli, Blackwood, Caerphilly, NP12 1EL£445,000 · 2024£509,000
- 6 Lon Rhymni, Gellihaf, Blackwood, Caerphilly, NP12 2QZ£228,995 · 2018£338,000
- 6 Lon Tredegar, Gellihaf, Blackwood, Caerphilly, NP12 2RD£206,995 · 2019£290,000
- 6 Lower James Street, Argoed, Blackwood, Caerphilly, NP12 0HW£55,000 · 2013£136,000
- 6 Maes Bengi, Oakdale, Blackwood, Caerphilly, NP12 0EX£249,995 · 2013£389,000
- 6 Maes Yr Afon, Pontllanfraith, Blackwood, Caerphilly, NP12 2GR£170,000 · 2019£271,000
- 6 Maesygarn Road, Oakdale, Blackwood, Caerphilly, NP12 0NA£124,995 · 2007£224,000
- 6 Mandeville Road, Bonnie View, Blackwood, Caerphilly, NP12 3PH£215,000 · 2025£230,000
- 6 Manmoel Court, Oakdale, Blackwood, Caerphilly, NP12 0NL£240,000 · 2025£249,000
- 6 Manor Road, Pontllanfraith, Blackwood, Caerphilly, NP12 2NW£91,500 · 1998£365,000
- 6 Manorbier Close, Grove Park, Blackwood, Caerphilly, NP12 1GQ£103,000 · 2015£192,000
- 6 Markham Crescent, Oakdale, Blackwood, Caerphilly, NP12 0JY£39,000 · 1996£202,000
- 6 Markham Terrace, Markham, Blackwood, Caerphilly, NP12 0RB£94,000 · 2015£181,000
- 6 Marshfield Court, Pontllanfraith, Blackwood, Caerphilly, NP12 2JP£100,000 · 2019£164,000
- 6 Meadow Close, Pengam, Blackwood, Caerphilly, NP12 3RB£112,000 · 2014£197,000
- 6 Mersey Close, Pontllanfraith, Blackwood, Caerphilly, NP12 2FZ£40,000 · 2002£169,000
- 6 Millers Wood, Penmaen, Blackwood, Caerphilly, NP12 0FE£380,000 · 2023£418,000
- 6 Mountain View, Markham, Blackwood, Caerphilly, NP12 0QU£80,000 · 2007£150,000
- 6 Nant Gau, Oakdale, Blackwood, Caerphilly, NP12 0GY£49,950 · 2000£154,000
- 6 New Bryn Gwyn, Fleur De Lis, Blackwood, Caerphilly, NP12 3RY£96,000 · 2018£182,000
- 6 New Bryngwyn Street, Fleur De Lis, Blackwood, Caerphilly, NP12 3RY£68,500 · 2004£137,000
- 6 Newfoundland Way, Blackwood, Caerphilly, NP12 1FS£54,750 · 1996£245,000
- 6 Newport Road, Pontllanfraith, Blackwood, Caerphilly, NP12 2JN£167,950 · 2022£184,000
- 6 Oak Street, Blackwood, Islwyn, Gwent, NP12 1PY£27,500 · 1996£158,000
- 6 Oak Terrace, Fleur De Lis, Blackwood, Caerphilly, NP12 3RW£95,500 · 2007£149,000
- 6 Oakdale Terrace, Penmaen, Blackwood, Caerphilly, NP12 0DF£152,500 · 2023£174,000
- 6 Old School Place, Blackwood, Caerphilly, NP12 1FW£123,250 · 2017£246,000
- 6 Orchard Court, Pontllanfraith, Blackwood, Caerphilly, NP12 2NG£162,500 · 2023£198,000
- 6 Parc Bryn, Pontllanfraith, Blackwood, Islwyn, Gwent, NP12 2RA£81,950 · 1995£361,000
- 6 Parc Plas, Blackwood, Caerphilly, NP12 1SJ£64,500 · 2000£273,000
- 6 Park Lane, Oakdale, Blackwood, Caerphilly, NP12 0NS£208,000 · 2011£350,000
- 6 Pen Deri Close, Oakdale, Blackwood, Islwyn, Gwent, NP12 0NJ£49,000 · 1995£257,000
- 6 Pen Y Cwarel Road, Wyllie, Blackwood, Caerphilly, NP12 2HP£107,500 · 2015£180,000
- 6 Pen Y Groes, Oakdale, Blackwood, Caerphilly, NP12 0ER£230,000 · 2022£279,000
- 6 Pen Y Mead, Pontllanfraith, Blackwood, Caerphilly, NP12 2QN£39,000 · 2002£155,000
- 6 Pengam Street, Glan Y Nant, Blackwood, Caerphilly, NP12 3XH£85,000 · 2018£149,000
- 6 Penllwyn Avenue, Pontllanfraith, Blackwood, Caerphilly, NP12 2JX£68,000 · 2014£177,000
- 6 Penllwyn Terrace, Pontllanfraith, Blackwood, Caerphilly, NP12 2BZ£97,000 · 2005£190,000
- 6 Penmaen Avenue, Oakdale, Blackwood, Caerphilly, NP12 0JZ£180,000 · 2022£231,000
- 6 Penrhiw Avenue, Oakdale, Blackwood, Caerphilly, NP12 0JP£100,000 · 2005£187,000
- 6 Penybryn Avenue, Cefn Fforest, Blackwood, Islwyn, Gwent, NP12 3JS£42,000 · 1996£218,000
- 6 Penybryn Terrace, The Bryn, Blackwood, Caerphilly, NP12 2EZ£28,000 · 1999£136,000
About this area
NP12 is a UK postcode district. Stede can model 8,254 properties there, from HM Land Registry Price Paid Data and the UK House Price Index.
As of November 2026, NP12 has a median estimated value of £216,000 and an average of £253,097.
Modelled values in NP12 are +5% over the past year and +24% over five years.
The market here is mostly semi-detached houses, which make up 39% of the properties Stede tracks in NP12.
310 sales were recorded in NP12 over the past 12 months.
Common questions
What is the average house price in NP12?
As of November 2026, the average estimated value is £253,097 and the median is £216,000 across 8,254 properties Stede tracks in NP12. This is not a formal market valuation.
Are house prices in NP12 going up or down?
Modelled values in NP12 are +5% over the past year and +24% over five years, based on the UK House Price Index.
What types of property are in NP12?
39% of the properties Stede tracks in NP12 are semi-detached houses. mid-terrace houses are next most common, at 29%.
How many properties are in NP12?
Stede can model 8,254 properties in NP12, with 310 recorded sales in the past 12 months.
How does Stede calculate house prices for NP12?
These figures are modelled from HM Land Registry Price Paid Data and the UK House Price Index — the same sources used for every individual property valuation on Stede. Full detail is on the methodology page.
How we calculate this
These figures are modelled from HM Land Registry Price Paid Data and the UK House Price Index — the same sources behind every individual property valuation on Stede.
Read the full methodology and data sources →