House prices on Allt Ioan
Median value — November 2026
£266,000
Modelled from 43 properties Stede tracks in Allt Ioan
Market snapshot
£266,000
Median value
£258,093
Average value
1
Sales in the last 12 months
+1%
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 | £60,340 |
| 2001 | £67,362 |
| 2002 | £84,674 |
| 2003 | £110,631 |
| 2004 | £146,529 |
| 2005 | £156,291 |
| 2006 | £174,176 |
| 2007 | £185,042 |
| 2008 | £158,055 |
| 2009 | £160,516 |
| 2010 | £156,419 |
| 2011 | £152,702 |
| 2012 | £144,094 |
| 2013 | £149,304 |
| 2014 | £157,169 |
| 2015 | £159,342 |
| 2016 | £166,780 |
| 2017 | £175,662 |
| 2018 | £180,970 |
| 2019 | £190,183 |
| 2020 | £205,967 |
| 2021 | £226,767 |
| 2022 | £260,134 |
| 2023 | £247,411 |
| 2024 | £253,423 |
| 2025 | £257,267 |
| 2026 | £258,000 |
There aren't enough recorded sales on Allt Ioan alone to model a trend for it, so this line shows Carmarthen instead.
Property types
- Detached house74%£275,000
- Mid-terrace house21%£170,000
- Semi-detached house5%£200,000
Recent sales
- 48 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£230,000 · 2026£233,000
- 51 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£222,000 · 2025£230,000
- 50 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£280,000 · 2024£293,000
- 29 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£210,000 · 2024£213,000
- 54 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£330,000 · 2023£382,000
- 42 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£190,000 · 2020£256,000
- 32 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£122,500 · 2019£170,000
- 21 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£176,000 · 2019£243,000
Addresses in Allt Ioan
- 1 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£165,000 · 2005£269,000
- 10 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£163,750 · 2009£263,000
- 12 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£150,000 · 2010£249,000
- 14 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£68,500 · 2000£273,000
- 15 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£63,500 · 1998£278,000
- 16 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£125,000 · 2012£187,000
- 17 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£168,500 · 2005£273,000
- 18 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£114,250 · 2012£169,000
- 19 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£160,000 · 2014£271,000
- 2 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£188,500 · 2013£324,000
- 20 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£121,000 · 2010£167,000
- 21 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£176,000 · 2019£243,000
- 22 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£117,000 · 2013£169,000
- 23 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£68,995 · 1998£264,000
- 24 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£122,000 · 2015£170,000
- 25 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£157,000 · 2008£266,000
- 26 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£120,000 · 2012£174,000
- 27 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£153,500 · 2016£258,000
- 28 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£158,000 · 2004£242,000
- 29 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£210,000 · 2024£213,000
- 3 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£83,995 · 1999£334,000
- 30 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£115,000 · 2014£168,000
- 32 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£122,500 · 2019£170,000
- 34 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£69,500 · 1998£254,000
- 36 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£71,500 · 1999£265,000
- 38 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£190,000 · 2013£312,000
- 4 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£160,000 · 2014£277,000
- 40 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£74,995 · 1998£294,000
- 42 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£190,000 · 2020£256,000
- 44 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£79,000 · 1999£290,000
- 46 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£148,000 · 2004£293,000
- 47 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£160,000 · 2009£267,000
- 48 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£230,000 · 2026£233,000
- 49 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£144,950 · 2004£301,000
- 5 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£158,000 · 2013£285,000
- 50 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£280,000 · 2024£293,000
- 51 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£222,000 · 2025£230,000
- 52 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£185,000 · 2004£306,000
- 53 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£165,000 · 2018£235,000
- 54 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£330,000 · 2023£382,000
- 55 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£190,000 · 2012£321,000
- 6 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£73,000 · 2000£299,000
- 8 Allt Ioan, Johnstown, Carmarthen, Carmarthenshire, SA31 3SB£77,995 · 1997£311,000
About this area
Allt Ioan, in Carmarthen, is a street. Stede can model 43 properties there, from HM Land Registry Price Paid Data and the UK House Price Index.
As of November 2026, Allt Ioan has a median estimated value of £266,000 and an average of £258,093.
Modelled values in Allt Ioan are +1% over the past year and +12% over five years.
The market here is mostly detached houses, which make up 74% of the properties Stede tracks in Allt Ioan.
1 sale was recorded in Allt Ioan over the past 12 months.
Common questions
What is the average house price in Allt Ioan?
As of November 2026, the average estimated value is £258,093 and the median is £266,000 across 43 properties Stede tracks in Allt Ioan. This is not a formal market valuation.
Are house prices in Allt Ioan going up or down?
Modelled values in Allt Ioan are +1% over the past year and +12% over five years, based on the UK House Price Index.
What types of property are in Allt Ioan?
74% of the properties Stede tracks in Allt Ioan are detached houses. mid-terrace houses are next most common, at 21%.
How many properties are in Allt Ioan?
Stede can model 43 properties in Allt Ioan, with 1 recorded sale in the past 12 months.
How does Stede calculate house prices for Allt Ioan?
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 →