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 Clos Coed Bach, Blackwood, Caerphilly, NP12 1GT£240,000 · 2016£429,000
- 6 Clos Coed Duon, Blackwood, Caerphilly, NP12 1FP£66,500 · 1998£296,000
- 6 Clos Oakdale, Gellihaf, Blackwood, Caerphilly, NP12 2QU£245,995 · 2021£305,000
- 6 Clos Penllwyn, Gellihaf, Blackwood, Caerphilly, NP12 2QW£193,995 · 2021£227,000
- 6 Clos Y Goron, Pontllanfraith, Blackwood, Caerphilly, NP12 2HZ£400,000 · 2025£433,000
- 6 Coed Gelli Parc, Cwmgelli, Blackwood, Caerphilly, NP12 1GS£99,995 · 1998£369,000
- 6 Coed Y Bryn, Blackwood, Caerphilly, NP12 1HA£84,950 · 2000£322,000
- 6 Coronation Road, Blackwood, Caerphilly, NP12 1EA£82,500 · 2004£226,000
- 6 Criccieth Close, Grove Park, Blackwood, Caerphilly, NP12 1GH£109,950 · 2013£184,000
- 6 Crown Lane, Pontllanfraith, Blackwood, Islwyn, Gwent, NP12 2GD£170,000 · 2019£254,000
- 6 Cwmgelli Villas, Cwmgelli, Blackwood, Caerphilly, NP12 1BU£136,000 · 2014£269,000
- 6 Cwmnantyrodyn, Pontllanfraith, Blackwood, Caerphilly, NP12 2DU£150,000 · 2014£290,000
- 6 Cwrt Pantycelyn, Pontllanfraith, Blackwood, Caerphilly, NP12 2LT£72,160 · 2004£131,000
- 6 Cwrt Y Coed, Blackwood, Caerphilly, NP12 1GL£155,000 · 2009£304,000
- 6 Dan Y Bryn, Pontllanfraith, Blackwood, Caerphilly, NP12 2FJ£97,950 · 2001£336,000
- 6 Darren Court, Oakdale, Blackwood, Caerphilly, NP12 0JF£84,000 · 2003£211,000
- 6 David Street, Blackwood, Caerphilly, NP12 1AP£112,000 · 2022£140,000
- 6 Elim Way, Pontllanfraith, Blackwood, Caerphilly, NP12 2AA£145,000 · 2018£233,000
- 6 Farm View, Pengam, Blackwood, Caerphilly, NP12 3TW£155,000 · 2026£171,000
- 6 Ffordd Caer Ywen, Cwmgelli, Blackwood, Caerphilly, NP12 1FX£375,000 · 2025£404,000
- 6 Ffordd Penallta, Gellihaf, Blackwood, Caerphilly, NP12 2QX£183,995 · 2021£223,000
- 6 Ffordd Trefynwy, Gellihaf, Blackwood, Caerphilly, NP12 2QY£240,000 · 2025£267,000
- 6 Field Close, Pontllanfraith, Blackwood, Caerphilly, NP12 2PD£232,500 · 2024£240,000
- 6 Fords Road, Fleur De Lis, Blackwood, Caerphilly, NP12 3XS£242,000 · 2020£337,000
- 6 Gelligroes Road, Pontllanfraith, Blackwood, Caerphilly, NP12 2JU£87,500 · 2016£157,000
- 6 Gellihaf Road, Fleur De Lis, Blackwood, Caerphilly, NP12 3UY£85,000 · 2014£152,000
- 6 Gelynos Avenue, Argoed, Blackwood, Caerphilly, NP12 0AT£82,000 · 2014£153,000
- 6 George Street, Blackwood, Caerphilly, NP12 1NZ£120,000 · 2024£161,000
- 6 Ger Y Felin, Gelligroes, Blackwood, Caerphilly, NP12 2GP£237,500 · 2014£438,000
- 6 Glanddu Road, Fleur De Lis, Blackwood, Caerphilly, NP12 3XT£160,000 · 2024£193,000
- 6 Glasfryn, Blackwood, Caerphilly, NP12 1FQ£137,000 · 2005£279,000
- 6 Glen View, Hollybush, Blackwood, Caerphilly, NP12 0SQ£118,500 · 2017£219,000
- 6 Glendale Gardens, Fleur De Lis, Blackwood, Caerphilly, NP12 3TR£216,000 · 2011£390,000
- 6 Golwg Y Bont, Blackwood, Caerphilly, NP12 3FT£205,000 · 2007£342,000
- 6 Greenmeadow Bungalows, Glan Y Nant, Blackwood, Caerphilly, NP12 3XR£325,000 · 2022£371,000
- 6 Gwern Y Sant, Pengam, Blackwood, Caerphilly, NP12 3PZ£45,000 · 2002£180,000
- 6 Hanbury Street, Glan Y Nant, Blackwood, Caerphilly, NP12 3XW£22,295 · 2001£122,000
- 6 Heath Road, Pontllanfraith, Blackwood, Caerphilly, NP12 2PB£32,000 · 2000£188,000
- 6 Herons View, Pengam, Blackwood, Caerphilly, NP12 3XA£380,000 · 2024£406,000
- 6 High Street, Argoed, Blackwood, Caerphilly, NP12 0HG£40,000 · 2001£173,000
- 6 Highfield Crescent, Pontllanfraith, Blackwood, Caerphilly, NP12 2ED£150,000 · 2025£196,000
- 6 Homeland Place, Blackwood, Caerphilly, NP12 1AS£67,000 · 2016£91,000
- 6 Islwyn Terrace, Pontllanfraith, Blackwood, Caerphilly, NP12 2LJ£80,000 · 2006£139,000
- 6 Ivor Street, Fleur De Lis, Blackwood, Caerphilly, NP12 3RF£36,950 · 2000£149,000
- 6 James Street, Markham, Blackwood, Caerphilly, NP12 0QN£22,875 · 2003£186,000
- 6 Julian Heights, Fleur De Lis, Blackwood, Caerphilly, NP12 3TT£249,950 · 2021£310,000
- 6 Kidwelly Close, Grove Park, Blackwood, Caerphilly, NP12 1GJ£295,000 · 2020£473,000
- 6 Laburnum Grove, Pontllanfraith, Blackwood, Caerphilly, NP12 2PT£132,000 · 2013£244,000
- 6 Laurel Drive, The Bryn, Blackwood, Caerphilly, NP12 2PR£225,000 · 2007£366,000
- 6 Leonard Street, Fleur De Lis, Blackwood, Caerphilly, NP12 3SB£24,500 · 1997£132,000
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 →