House prices in NP12
Median value — June 2026
£215,110
Modelled from 8,142 properties Stede tracks in NP12
Market snapshot
£215,110
Median value
£251,246
Average value
303
Sales in the last 12 months
+6%
Change over the past year
Value over time
- Modelled value
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 | £48,632 |
| 2001 | £51,200 |
| 2002 | £64,409 |
| 2003 | £82,885 |
| 2004 | £106,464 |
| 2005 | £116,361 |
| 2006 | £121,879 |
| 2007 | £127,591 |
| 2008 | £114,244 |
| 2009 | £112,280 |
| 2010 | £109,081 |
| 2011 | £115,184 |
| 2012 | £110,472 |
| 2013 | £112,207 |
| 2014 | £120,680 |
| 2015 | £123,056 |
| 2016 | £124,686 |
| 2017 | £134,007 |
| 2018 | £144,586 |
| 2019 | £147,189 |
| 2020 | £158,547 |
| 2021 | £178,265 |
| 2022 | £200,597 |
| 2023 | £197,934 |
| 2024 | £207,204 |
| 2025 | £209,564 |
| 2026 | £215,110 |
Property types
- Semi-detached house39%£207,972
- Mid-terrace house29%£165,486
- Detached house28%£349,798
- Property3%£209,496
- Flat / Maisonette1%£116,704
Recent sales
- 7 Clos Oakdale, Gellihaf, Blackwood, Caerphilly, NP12 2QU£205,000 · 2026—
- 14 Llys Cyncoed, Oakdale, Blackwood, Caerphilly, NP12 0NQ£334,500 · 2026—
- 36 Orchard Lane, Pengam, Blackwood, Caerphilly, NP12 3TJ£170,000 · 2026—
- 11 Bevan Crescent, Blackwood, Caerphilly, NP12 1EW£205,000 · 2026—
- 18 Oakdale Terrace, Penmaen, Blackwood, Caerphilly, NP12 0DF£193,000 · 2026—
- 7 Bryn Derw, Blackwood, Caerphilly, NP12 1SN£250,000 · 2026—
- 81 Abernant Road, Markham, Blackwood, Caerphilly, NP12 0QJ£240,000 · 2026—
- 16 Abernant Road, Markham, Blackwood, Caerphilly, NP12 0PS£111,000 · 2026—
Addresses in NP12
- 1 Clos Coed Duon, Blackwood, Islwyn, Gwent, NP12 1FP£52,995 · 1995£297,000
- 1 Clos Oakdale, Gellihaf, Blackwood, Caerphilly, NP12 2QU£210,995 · 2020£280,000
- 1 Clos Y Goron, Pontllanfraith, Blackwood, Caerphilly, NP12 2HZ£156,000 · 2003£463,000
- 1 Coed Gelli Parc, Cwmgelli, Blackwood, Caerphilly, NP12 1GS£225,000 · 2006£411,000
- 1 Coed Y Bryn, Blackwood, Caerphilly, NP12 1HA£250,000 · 2025£273,000
- 1 Commercial Street, Pengam, Blackwood, Caerphilly, NP12 3ST£140,000 · 2021£173,000
- 1 Coronation Road, Blackwood, Caerphilly, NP12 1EA£184,000 · 2025£200,000
- 1 Coundley Close, Fleur De Lis, Blackwood, Caerphilly, NP12 3TS£96,000 · 2006£178,000
- 1 Crown Cottages, Pontllanfraith, Blackwood, Caerphilly, NP12 2HF£257,000 · 2019£377,000
- 1 Crown Lane, Pontllanfraith, Blackwood, Caerphilly, NP12 2GD£136,000 · 2015£232,000
- 1 Cwm Braenar, Pontllanfraith, Blackwood, Caerphilly, NP12 2DS£199,950 · 2006£361,000
- 1 Cwmalsie Crescent, Pontllanfraith, Blackwood, Caerphilly, NP12 2LP£60,000 · 2005£123,000
- 1 Cwmgelli Villas, Cwmgelli, Blackwood, Caerphilly, NP12 1BU£160,000 · 2017£259,000
- 1 Cwmnantyrodyn, Pontllanfraith, Blackwood, Caerphilly, NP12 2DU£270,000 · 2019£388,000
- 1 Cwrt Bryn Y Grug, Blackwood, Caerphilly, NP12 1SP£165,000 · 2018£259,000
- 1 Cwrt Pantycelyn, Pontllanfraith, Blackwood, Caerphilly, NP12 2LT£205,000 · 2025£214,000
- 1 Cwrt Y Coed, Blackwood, Caerphilly, NP12 1GL£282,500 · 2022£330,000
- 1 Dan Y Bryn, Pontllanfraith, Blackwood, Caerphilly, NP12 2FJ£285,000 · 2024£312,000
- 1 David Street, Blackwood, Caerphilly, NP12 1AP£129,000 · 2019£188,000
- 1 Edge Hill, Pontllanfraith, Blackwood, Caerphilly, NP12 2NZ£115,500 · 2022£136,000
- 1 Elgar Close, Fairview, Blackwood, Caerphilly, NP12 3NP£160,000 · 2023£179,000
- 1 Elim Way, Pontllanfraith, Blackwood, Caerphilly, NP12 2AA£89,995 · 2002£319,000
- 1 Factory Cottages, Woodfieldside, Blackwood, Caerphilly, NP12 0PB£169,000 · 2025£179,000
- 1 Fairfield Close, Blackwood, Islwyn, Gwent, NP12 1EJ£42,000 · 1995£232,000
- 1 Ffordd Penallta, Gellihaf, Blackwood, Caerphilly, NP12 2QX£182,995 · 2021£247,000
- 1 Ffordd Trefynwy, Gellihaf, Blackwood, Caerphilly, NP12 2QY£246,717 · 2023£266,000
- 1 Ffynonwen Terrace, Pengam, Blackwood, Caerphilly, NP12 3TD£120,000 · 2005£238,000
- 1 Field Close, Pontllanfraith, Blackwood, Caerphilly, NP12 2PD£175,000 · 2014£319,000
- 1 Field Cottages, Cwmgelli, Blackwood, Caerphilly, NP12 1BX£36,500 · 2001£168,000
- 1 Flat A, Clos Penllwyn, Gellihaf, Blackwood, Caerphilly, NP12 2QW£194,892 · 2022£218,000
- 1 Floral Avenue, Fairview, Blackwood, Caerphilly, NP12 3NU£89,000 · 2010£167,000
- 1 Fords Road, Fleur De Lis, Blackwood, Caerphilly, NP12 3XS£215,000 · 2023£238,000
- 1 Forest Hill, The Bryn, Blackwood, Caerphilly, NP12 2PW£153,000 · 2005£299,000
- 1 Frost Place, Blackwood, Caerphilly, NP12 1WF£138,000 · 2025£146,000
- 1 Garfield Street, Blackwood, Caerphilly, NP12 1DR£35,000 · 1997£186,000
- 1 Gelli Lane, Pontllanfraith, Blackwood, Caerphilly, NP12 2JR£113,000 · 2015£195,000
- 1 Gelligroes Road, Pontllanfraith, Blackwood, Caerphilly, NP12 2JU£92,000 · 2019£136,000
- 1 Gellihaf Cottages, Gellihaf, Blackwood, Caerphilly, NP12 2QB£105,000 · 2006£179,000
- 1 Gellihaf Road, Fleur De Lis, Blackwood, Caerphilly, NP12 3UY£100,000 · 2006£188,000
- 1 George Street, Argoed, Blackwood, Islwyn, Gwent, NP12 0AW£25,000 · 1995£146,000
- 1 Ger Y Felin, Gelligroes, Blackwood, Caerphilly, NP12 2GP£342,000 · 2018£543,000
- 1 Gerddi Ty Mawr, Gelligroes, Blackwood, Caerphilly, NP12 2GY£245,000 · 2005£490,000
- 1 Glan Islwyn, Pontllanfraith, Blackwood, Caerphilly, NP12 2DF£105,000 · 2019£155,000
- 1 Glanddu Road, Fleur De Lis, Blackwood, Caerphilly, NP12 3XT£149,950 · 2019£221,000
- 1 Glanhowy Road, Wyllie, Blackwood, Caerphilly, NP12 2HN£99,950 · 2009£205,000
- 1 Glanyravon Cottages, Hollybush, Blackwood, Caerphilly, NP12 0SN£170,000 · 2018£273,000
- 1 Glasfryn, Blackwood, Caerphilly, NP12 1FQ£235,000 · 2023£260,000
- 1 Golwg Y Bont, Blackwood, Caerphilly, NP12 3FT£179,950 · 2012£359,000
- 1 Gordon Road, Blackwood, Caerphilly, NP12 1DW£150,000 · 2006£264,000
- 1 Greenfield Terrace, Argoed, Blackwood, Caerphilly, NP12 0HL£35,000 · 2004£74,000
About this area
NP12 is a UK postcode district. Stede can model 8,142 properties there, from HM Land Registry Price Paid Data and the UK House Price Index.
As of June 2026, NP12 has a median estimated value of £215,110 and an average of £251,246.
Modelled values in NP12 are +6% over the past year and +27% over five years.
The market here is mostly semi-detached houses, which make up 39% of the properties Stede tracks in NP12.
303 sales were recorded in NP12 over the past 12 months.
Common questions
What is the average house price in NP12?
As of June 2026, the average estimated value is £251,246 and the median is £215,110 across 8,142 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 +6% over the past year and +27% 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 8,142 properties in NP12, with 303 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 →