House prices on Heol Isaf
Median value — June 2026
£240,216
Modelled from 22 properties Stede tracks in Heol Isaf
Market snapshot
£240,216
Median value
£244,948
Average value
1
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 | £51,668 |
| 2001 | £54,397 |
| 2002 | £68,430 |
| 2003 | £88,059 |
| 2004 | £113,111 |
| 2005 | £123,625 |
| 2006 | £129,488 |
| 2007 | £135,556 |
| 2008 | £121,376 |
| 2009 | £119,290 |
| 2010 | £115,891 |
| 2011 | £122,375 |
| 2012 | £117,369 |
| 2013 | £119,212 |
| 2014 | £128,214 |
| 2015 | £130,738 |
| 2016 | £132,470 |
| 2017 | £142,373 |
| 2018 | £153,613 |
| 2019 | £156,378 |
| 2020 | £168,445 |
| 2021 | £189,394 |
| 2022 | £213,120 |
| 2023 | £210,291 |
| 2024 | £220,139 |
| 2025 | £222,646 |
| 2026 | £228,539 |
There aren't enough recorded sales on Heol Isaf alone to model a trend for it, so this line shows Treharris instead.
Property types
- Semi-detached house82%£240,216
- Detached house18%£240,184
Recent sales
- 24 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£240,000 · 2026£242,000
- 31 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£220,000 · 2022£237,000
- 8 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£78,000 · 2022£85,000
- 15 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£245,000 · 2022£270,000
- 11 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£212,000 · 2022£234,000
- 6 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£204,000 · 2021£274,000
- 18 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£162,500 · 2019£238,000
- 2 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£120,000 · 2018£175,000
Addresses in Heol Isaf
- 1 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£95,000 · 2012£183,000
- 11 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£212,000 · 2022£234,000
- 14 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£152,000 · 2014£281,000
- 15 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£245,000 · 2022£270,000
- 16 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£158,000 · 2007£271,000
- 18 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£162,500 · 2019£238,000
- 2 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£120,000 · 2018£175,000
- 20 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£125,000 · 2014£232,000
- 21 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£156,000 · 2014£289,000
- 23 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£149,000 · 2006£276,000
- 24 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£240,000 · 2026£242,000
- 26 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£119,950 · 2005£235,000
- 28 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£180,000 · 2007£324,000
- 29 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£145,000 · 2017£236,000
- 30 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£109,000 · 2007£184,000
- 31 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£220,000 · 2022£237,000
- 32 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£86,950 · 2000£365,000
- 33 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£192,500 · 2018£297,000
- 6 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£204,000 · 2021£274,000
- 7 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£108,000 · 2012£209,000
- 8 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£78,000 · 2022£85,000
- 9 Heol Isaf, Nelson, Treharris, Caerphilly, CF46 6NS£49,500 · 1997£252,000
About this area
Heol Isaf, in Treharris, is a street. Stede can model 22 properties there, from HM Land Registry Price Paid Data and the UK House Price Index.
As of June 2026, Heol Isaf has a median estimated value of £240,216 and an average of £244,948.
Modelled values in Heol Isaf are +6% over the past year and +27% over five years.
The market here is mostly semi-detached houses, which make up 82% of the properties Stede tracks in Heol Isaf.
1 sale was recorded in Heol Isaf over the past 12 months.
Common questions
What is the average house price in Heol Isaf?
As of June 2026, the average estimated value is £244,948 and the median is £240,216 across 22 properties Stede tracks in Heol Isaf. This is not a formal market valuation.
Are house prices in Heol Isaf going up or down?
Modelled values in Heol Isaf are +6% over the past year and +27% over five years, based on the UK House Price Index.
What types of property are in Heol Isaf?
82% of the properties Stede tracks in Heol Isaf are semi-detached houses. detached houses are next most common, at 18%.
How many properties are in Heol Isaf?
Stede can model 22 properties in Heol Isaf, with 1 recorded sale in the past 12 months.
How does Stede calculate house prices for Heol Isaf?
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 →