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Sold House Prices on Heol Islwyn, Porth

The average sold price on Heol Islwyn in Porth (CF39) is £87,730The arithmetic mean of every recorded sale on this street, all property types and all years since 1995 combined. Because it spans decades it typically sits below current values - see the year-by-year trend below for the recent level., based on 31 sales recorded by HM Land Registry between Sep 1996 and Mar 2025. Sale prices here have ranged from £10,000 to £191,000.

Every Land Registry property sale recorded on Heol Islwyn in the CF39 postcode district. Updated monthly, England and Wales coverage.

Across the wider CF39 district (not just this street), the average sold price is ↑ 335% since 1995Calculated across the wider CF39 postcode district, not this street alone (one street rarely has enough sales each year for a reliable trend). We compare the average price in the district's earliest year that had at least 10 recorded sales with its most recent such year. ↑ 0% over the last 2 years
Total salesA straight count of the standard sales recorded on this street, with the dates of the first and most recent.
31
13 Sep 1996 – 20 Mar 2025
Average priceThe arithmetic mean of every recorded sale on this street, all property types and all years since 1995 combined. Because it spans decades it typically sits below current values - see the year-by-year trend below for the recent level.
£87,730
mean, all property types, all years
Lowest saleThe single lowest individual sale price recorded on the street in any year - one transaction, not a typical figure.
£10,000
Highest saleThe single highest individual sale price recorded on the street in any year - one transaction, not a typical figure.
£191,000

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Average sold price per year in CF39£150k£156k£163k£170k£176k20222023202420252026
Average sold price per year in CF39£112k£128k£144k£160k£176k2017201820192020202120222023202420252026
Average sold price per year in CF39£35k£70k£105k£141k£176k1995200020052010201520202025
Average sold price per year, CF39 (standard sales, HM Land Registry).The mean price of all standard (HM Land Registry category-A) sales in CF39 in each calendar year. A single line point can move sharply in a year with few sales.
Average sold price per year in CF39
YearAverage priceSales
1995£36,395258
1996£38,054308
1997£37,380353
1998£38,860315
1999£43,262333
2000£45,300393
2001£44,580468
2002£54,030579
2003£61,580670
2004£80,461592
2005£89,504441
2006£103,651486
2007£104,554459
2008£102,571286
2009£99,153190
2010£102,016231
2011£92,983251
2012£97,982249
2013£105,359274
2014£98,219334
2015£97,452340
2016£109,034373
2017£118,174382
2018£121,704425
2019£122,668406
2020£129,990313
2021£139,743481
2022£165,260456
2023£167,975348
2024£157,640307
2025£166,457322
2026£158,37061

Property types in CF39Each percentage is that property type's share of all standard sales in CF39; the average beside it is the mean sale price for that type. The freehold/leasehold split and any new-build figure are worked out the same way - the new-build figure compares average new-build and existing-home prices, weighted by number of sales.

Terraced 56% avg £68,087
Semi-detached 25% avg £103,373
Detached 19% avg £167,718
Flat / Apartment 1% avg £46,601

97% freehold, 3% leasehold. New-build homes here sold for around 19% more than existing homes.

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Showing 31 results

Recorded sales on Heol Islwyn

Showing 1–31 of 31 sales, newest first.

Address Postcode Type Tenure Price Date
37 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £152,000 First recorded sale 20 Mar 2025
4 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £170,000 +62% since 2014 29 Nov 2024
26 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £191,000 +75% since 2015 8 Aug 2024
8 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £140,000 First recorded sale 31 Jul 2024
5 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £150,000 +67% since 2007 2 Nov 2023
41 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £125,000 +36% since 2019 27 Oct 2023
20 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £150,000 First recorded sale 13 Jun 2023
2 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £160,000 First recorded sale 19 Aug 2022
14 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £110,000 First recorded sale 26 Nov 2019
41 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £92,000 +24% since 2016 27 Jun 2019
41 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £74,000 First recorded sale 9 Dec 2016
33 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £66,000 First recorded sale 17 Mar 2015
26 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £109,000 First recorded sale 20 Feb 2015
9 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £80,000 +130% since 2002 2 Dec 2014
4 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £105,000 +50% since 2014 24 Oct 2014
4 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £70,000 -30% since 2010 24 Jan 2014
23 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £64,000 First recorded sale 19 Jul 2013
42 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £78,000 First recorded sale 3 Dec 2012
22 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £100,000 First recorded sale 29 Jul 2011
4 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £100,000 First recorded sale 12 Mar 2010
5 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £90,000 +800% since 1996 30 Jan 2007
25 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £70,000 First recorded sale 12 Aug 2005
3 Heol Islwyn ⚑ CF39 8NR Terraced Freehold £55,000 First recorded sale 30 Jan 2004
16 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £30,000 First recorded sale 14 Apr 2003
9 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £34,750 First recorded sale 19 Apr 2002
1a Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £23,950 First recorded sale 7 Sep 2001
43 Heol Islwyn ⚑ CF39 8NR Terraced Freehold £33,000 First recorded sale 18 Apr 2001
40 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £31,995 First recorded sale 6 Nov 2000
30 Heol Islwyn ⚑ CF39 8NR Terraced Freehold £25,000 First recorded sale 5 Jun 1998
11 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £29,950 First recorded sale 31 Jan 1997
5 Heol Islwyn ⚑ CF39 8NR Semi-detached Freehold £10,000 First recorded sale 13 Sep 1996

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Other streets in CF39

Heol Elai 8 sales · avg £175,624 Heol Glyn Goch 14 sales · avg £58,171 Heol Haulfryn 15 sales · avg £89,160 Heol Heulog 7 sales · avg £94,429 Heol Horeb 13 sales · avg £66,836 Heol Isaf 9 sales · avg £65,038 Heol Llechau 16 sales · avg £51,591 Heol Pentwyn 7 sales · avg £67,168 Heol Pymmer 16 sales · avg £74,469 Heol Ton 17 sales · avg £78,000 Heol Trane 9 sales · avg £63,674 Heol Tyllwyd 21 sales · avg £75,481

See all sold prices in CF39 ›

Latest sale recorded May 2026. Data refreshed 27 Jul 2026 from HM Land Registry (published with a 1-2 month lag).

How we calculate these figures

Figures use HM Land Registry Price Paid Data, standard sales only (their 'category A' - excludes repossessions, transfers not for value and buy-to-let portfolio deals), and ignore entries under £1,000. England and Wales only; Land Registry publishes with a 1-2 month lag.

Average price
The arithmetic mean of every recorded sale on this street, all property types and all years since 1995 combined. Because it spans decades it typically sits below current values - see the year-by-year trend below for the recent level.
Total sales
A straight count of the standard sales recorded on this street, with the dates of the first and most recent.
Lowest / highest sale
The single lowest and highest individual sale prices recorded on the street in any year - two transactions, not a typical range.
District trend (% change & chart)
Calculated across the wider CF39 postcode district, not this street alone (one street rarely has enough sales each year for a reliable trend). We compare the average price in the district's earliest year that had at least 10 recorded sales with its most recent such year.
Property-type mix
Share of standard sales by property type across the CF39 district. Any new-build figure compares the average new-build price with the average existing-home price, weighted by number of sales.
Instant estimate
An automated estimate from nearby Land Registry sold prices adjusted for market trends - not a formal valuation. A local agent's valuation will be more accurate.
Change since previous sale
Where a sale row shows "up/down X% since {year}", that compares the sale price with the most recent earlier recorded sale of the same property - not an area trend.

Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0. England and Wales only. Sale prices are as recorded by Land Registry and may exclude some private/below-threshold transactions.

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