Heol Isaf, Nelson, Treharris

House prices, sold prices and local information for CF46 6NS.

Average price (last 12 months)
£240,000
1 sale
Average price (since 2016)
£178,727
11 sales
Price range
£78k – £245k
lowest to highest sale
Last sale
18 Mar 2026
CF46 6NS

At a glance

House prices£179k averageSince 2016 (few recent sales) Flood riskNo flood warning areasFrom rivers or the sea Nearest station33 min walkYstrad Mynach station Ultrafast broadband100% of homesNational average 80%

11 property sales on Heol Isaf, Nelson, Treharris have been recorded by HM Land Registry since 2016. In the last 12 months 1 home sold here for an average of £240,000. Most sales here are semi-detached homes, which have sold for an average of £183,722. 1 home here has sold more than once since 2016; 1 of them sold for more the second time.

House prices on Heol Isaf compared

CF46 postcode area£190,833
Treharris£217,214
England & Wales£356,718

Average sale price over the last 12 months. Heol Isaf has had fewer than two sales in that time, so it is left out. See all CF46 house prices.

Average sale price by year

2016: £147,000 (1 sales)2016£147k2017: £145,000 (1 sales)2017£145k2018: £156,250 (2 sales)2018£156k2019: £162,500 (1 sales)2019£163k2021: £204,000 (1 sales)2021£204k2022: £188,750 (4 sales)2022£189k2026: £240,000 (1 sales)2026£240k

Prices by property type

TypeSalesAverage priceLast sold
Semi-detached9£183,72218 Mar 2026
Detached2£156,25016 Nov 2018

Sold prices on Heol Isaf

AddressDatePriceTypeTenure
24, Heol Isaf CF46 6NS 18 Mar 2026£240,000 Semi-detachedFreehold
31, Heol Isaf CF46 6NS 25 Nov 2022£220,000 Semi-detachedFreehold
8, Heol Isaf CF46 6NS 7 Oct 2022£78,000 Semi-detachedFreehold
15, Heol Isaf CF46 6NS 20 Sep 2022£245,000 Semi-detachedFreehold
11, Heol Isaf CF46 6NS 4 Aug 2022£212,000 Semi-detachedFreehold
6, Heol Isaf CF46 6NS 19 Mar 2021£204,000 Semi-detachedFreehold
18, Heol Isaf CF46 6NS 16 Dec 2019£162,500 Semi-detachedFreehold
2, Heol Isaf CF46 6NS 16 Nov 2018£120,000 DetachedFreehold
33, Heol Isaf CF46 6NS 9 Aug 2018£192,500 DetachedFreehold
29, Heol Isaf CF46 6NS 29 Sep 2017£145,000 Semi-detachedFreehold
24, Heol Isaf CF46 6NS 5 Oct 2016£147,000 Semi-detachedFreehold

Sale prices are as recorded by HM Land Registry. Some sales (for example repossessions and company purchases) are listed but left out of the averages.

Sale history: homes sold more than once

AddressSalesChange
24, Heol Isaf £147,000 (Oct 2016) → £240,000 (Mar 2026) +63%
over 9 yrs

Buying on Heol Isaf?

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Crime and flood risk near Heol Isaf

Flood risk

Heol Isaf is not in or near any Environment Agency flood warning or alert area.

Flood warning areas cover places at risk from rivers and the sea. Surface water risk isn't included. Check the long-term flood risk for a postcode on GOV.UK.

Getting around and local GPs

Train stations

  • Ystrad Mynach station 1.7 mi · 33 min walk
  • Quakers Yard station 2.1 mi · 42 min walk
  • Abercynon station 2.2 mi · 44 min walk

Nearest bus stops

  • Heol Uchaf (after, Heol Isaf) 1 min walk
  • Heol Uchaf (T junction, Heol Uchaf) 1 min walk
  • Heol Isaf (Entrance, Heol Isaf) 1 min walk
  • Beech Tree Way (nr, Mountain Way) 2 min walk

GP surgeries

  • Nelson Surgery
    Bryncelyn, Nelson, Treharris · 0.6 mi
  • Meddygfa Gelligaer Surgery
    Heol Hen Ysgol, Gelligaer, Hengoed · 1.6 mi
  • Treharris Primary Care Centre
    Fox Street, Treharris · 1.6 mi
  • Oakfield Surgery
    Oakfield Street, Ystrad Mynach, Hengoed · 1.9 mi

Sources: Department for Transport (NaPTAN) and NHS England practice data. Walking times are estimates from straight-line distance.

Area profile

Homes

HereEng & Wales
Owned79.5%62.5%
Private rented11.5%20.3%
Social rented9.1%17.1%
Households672

People

HereEng & Wales
Under 1512.7%17.4%
Aged 15–6459.2%64.1%
Aged 65+28.1%18.6%
Residents1,451

Broadband

HereUK
Superfast (30Mbit+)100%95%
Ultrafast (300Mbit+)100%80%
Gigabit-capable100%80%

Share of homes on this street's postcodes that can get each speed. UK figure is the average across all postcodes. Source: Ofcom Connected Nations.

Neighbourhood figures cover the surrounding Lower Layer Super Output Area (about 1,500 residents). Sources: Census 2021 (ONS) and the English Indices of Deprivation 2025.

Nearby streets in CF46

See all streets in Treharris All streets in CF46