Heol Isaf, Radyr, Cardiff
House prices, sold prices and local information for CF15 8EA, CF15 8DW, CF15 8DX.
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At a glance
71 property sales on Heol Isaf, Radyr, Cardiff have been recorded by HM Land Registry since 2016. In the last 12 months 3 homes sold here for an average of £970,000. Most sales here are detached homes, which have sold for an average of £639,751. Average sale prices rose from £387,514 in 2016 to £970,000 in 2026 (+150%), though averages on a single street can swing with the mix of homes sold. That is 207% above the Cardiff average of £315,449 over the same period. 13 homes here have sold more than once since 2016; 12 of them sold for more the second time. By property type, sales here have been 41% detached, 38% semi-detached, 11% terraced. Recorded sale prices on Heol Isaf range from £128,750 to £1,300,000. 90% of homes sold here were freehold and 10% leasehold. Of 702 streets in Cardiff with at least two sales in the last year, Heol Isaf ranks 7th for average price, putting it in the top 10%.
House prices on Heol Isaf compared
Average sale price over the last 12 months. See all CF15 house prices.
Average sale price by year
Tenure: 90% freehold and 10% leasehold across 77 recorded sales.
Prices by property type
| Type | Sales | Average price | Last sold |
|---|---|---|---|
| Detached | 29 | £639,751 | 1 May 2026 |
| Semi-detached | 27 | £578,980 | 28 Apr 2026 |
| Terraced | 8 | £331,619 | 5 Apr 2022 |
| Flat | 7 | £151,250 | 28 Mar 2024 |
Sold prices on Heol Isaf
| Address | Date | Price | Type | Tenure |
|---|---|---|---|---|
| Holly House, Heol Isaf CF15 8DX | 1 May 2026 | £840,000 | Detached | Freehold |
| 36, Heol Isaf CF15 8DY | 28 Apr 2026 | £1,075,000 | Semi-detached | Freehold |
| Hafod Y Ddinas, Heol Isaf CF15 8DX | 13 Mar 2026 | £995,000 | Detached | Freehold |
| 106, Heol Isaf CF15 8EA | 5 Sep 2025 | £758,050 | Detached | Freehold |
| 40, Heol Isaf CF15 8DY | 20 Aug 2025 | £1,300,000 | Semi-detached | Freehold |
| 17, Heol Isaf CF15 8AG | 24 Mar 2025 | £6,000 | Other | Freehold |
| 90, Heol Isaf CF15 8EA | 17 Jan 2025 | £645,000 | Semi-detached | Freehold |
| 77, Heol Isaf CF15 8DW | 25 Oct 2024 | £600,000 | Semi-detached | Freehold |
| 60, Heol Isaf CF15 8DZ | 16 Aug 2024 | £585,000 | Semi-detached | Freehold |
| Danybryn Cheshire Home, Heol Isaf CF15 8AJ | 7 Aug 2024 | £3,349,950 | Other | Freehold |
| 1A, Heol Isaf CF15 8AF | 2 Jul 2024 | £794,950 | Detached | Freehold |
| Flat 3, Harlech House, Heol Isaf CF15 8AP | 28 Mar 2024 | £190,000 | Flat | Leasehold |
| 82, Heol Isaf CF15 8EA | 3 Oct 2023 | £625,000 | Semi-detached | Freehold |
| 23, Heol Isaf CF15 8AG | 17 Feb 2023 | £160,000 | Flat | Leasehold |
| 17, Heol Isaf CF15 8AG | 13 Jan 2023 | £1,125,000 | Detached | Freehold |
| 70, Heol Isaf CF15 8DZ | 25 Nov 2022 | £625,000 | Semi-detached | Freehold |
| 132, Heol Isaf CF15 8EA | 24 Nov 2022 | £489,995 | Detached New build | Freehold |
| Flat 9, Harlech House, Heol Isaf CF15 8AP | 11 Nov 2022 | £162,000 | Flat | Leasehold |
| 91, Heol Isaf CF15 8DW | 26 Oct 2022 | £480,000 | Detached | Freehold |
| 130, Heol Isaf CF15 8EA | 21 Oct 2022 | £489,995 | Detached New build | Freehold |
| Flat 6, Harlech House, Heol Isaf CF15 8AP | 22 Jul 2022 | £150,000 | Flat | Leasehold |
| 117, Heol Isaf CF15 8DX | 27 May 2022 | £690,000 | Detached | Freehold |
| 104, Heol Isaf CF15 8EA | 20 May 2022 | £645,000 | Detached | Freehold |
| 1, Shepley Court, Heol Isaf CF15 8DX | 14 Apr 2022 | £1,015,000 | Detached | Freehold |
| 109, Heol Isaf CF15 8DW | 5 Apr 2022 | £551,000 | Terraced | Freehold |
| 3, Heol Isaf CF15 8AF | 16 Feb 2022 | £353,000 | Detached | Freehold |
| 84, Heol Isaf CF15 8EA | 15 Dec 2021 | £580,000 | Semi-detached | Freehold |
| Flat 4, Harlech House, Heol Isaf CF15 8AP | 3 Dec 2021 | £142,000 | Flat | Leasehold |
| 45, Heol Isaf CF15 8AH | 1 Oct 2021 | £575,000 | Semi-detached | Freehold |
| 88, Heol Isaf CF15 8EA | 25 Jun 2021 | £710,000 | Other | Freehold |
| 1B, Heol Isaf CF15 8AF | 28 May 2021 | £469,000 | Detached | Freehold |
| 68, Heol Isaf CF15 8DZ | 27 May 2021 | £520,000 | Semi-detached | Freehold |
| 10, Heol Isaf CF15 8AL | 22 Mar 2021 | £650,000 | Detached | Freehold |
| 135, Heol Isaf CF15 8DX | 8 Jan 2021 | £620,000 | Detached | Freehold |
| 124A, Heol Isaf CF15 8EA | 18 Dec 2020 | £615,000 | Detached | Freehold |
| 47, Heol Isaf CF15 8AH | 13 Nov 2020 | £404,000 | Semi-detached | Freehold |
| 64, Heol Isaf CF15 8DZ | 30 Oct 2020 | £550,000 | Semi-detached | Freehold |
| 99, Heol Isaf CF15 8DW | 24 Jun 2020 | £240,000 | Terraced | Freehold |
| 77, Heol Isaf CF15 8DW | 7 May 2020 | £456,500 | Semi-detached | Freehold |
| 20, Heol Isaf CF15 8AL | 6 Apr 2020 | £865,000 | Detached | Freehold |
| 61, Heol Isaf CF15 8DW | 6 Mar 2020 | £766,000 | Semi-detached | Freehold |
| 11, Heol Isaf CF15 8AF | 28 Jan 2020 | £625,000 | Detached | Freehold |
| 47, Heol Isaf CF15 8AH | 1 Nov 2019 | £315,000 | Semi-detached | Freehold |
| 53, Heol Isaf CF15 8AH | 9 Sep 2019 | £310,000 | Terraced | Freehold |
| 106, Heol Isaf CF15 8EA | 29 Aug 2019 | £645,000 | Detached | Freehold |
| 145, Heol Isaf CF15 8DX | 29 Aug 2019 | £935,000 | Detached | Freehold |
| 110, Heol Isaf CF15 8EA | 29 Jul 2019 | £610,000 | Detached | Freehold |
| 55, Heol Isaf CF15 8AH | 5 Jul 2019 | £265,000 | Terraced | Freehold |
| Flat 3, Harlech House, Heol Isaf CF15 8AP | 30 May 2019 | £130,000 | Flat | Leasehold |
| 26, Heol Isaf CF15 8AL | 7 Dec 2018 | £520,000 | Semi-detached | Freehold |
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
| Address | Sales | Change |
|---|---|---|
| Holly House, Heol Isaf | £645,000 (Jan 2017) → £840,000 (May 2026) | +30% over 9 yrs |
| 106, Heol Isaf | £645,000 (Aug 2019) → £758,050 (Sep 2025) | +18% over 6 yrs |
| 17, Heol Isaf | £1,125,000 (Jan 2023) → £6,000 (Mar 2025) | -99% over 2 yrs |
| 77, Heol Isaf | £456,500 (May 2020) → £600,000 (Oct 2024) | +31% over 4 yrs |
| Flat 3, Harlech House, Heol Isaf | £130,000 (May 2019) → £190,000 (Mar 2024) | +46% over 5 yrs |
| 82, Heol Isaf | £475,000 (Mar 2017) → £625,000 (Oct 2023) | +32% over 7 yrs |
| Flat 9, Harlech House, Heol Isaf | £138,000 (Oct 2018) → £162,000 (Nov 2022) | +17% over 4 yrs |
| Flat 4, Harlech House, Heol Isaf | £128,750 (Jan 2016) → £142,000 (Dec 2021) | +10% over 6 yrs |
| 45, Heol Isaf | £512,500 (May 2018) → £575,000 (Oct 2021) | +12% over 3 yrs |
| 1B, Heol Isaf | £345,000 (Dec 2016) → £469,000 (May 2021) | +36% over 4 yrs |
| 47, Heol Isaf | £285,000 (Jul 2016) → £315,000 (Nov 2019) → £404,000 (Nov 2020) | +42% over 4 yrs |
| 61, Heol Isaf | £570,000 (May 2017) → £766,000 (Mar 2020) | +34% over 3 yrs |
| 53, Heol Isaf | £305,000 (Nov 2017) → £310,000 (Sep 2019) | +2% over 2 yrs |
Buying on Heol Isaf?
Crime and flood risk near Heol Isaf
Crime
80 crimes were reported within about a mile of Heol Isaf in August 2026.
| Violence & sexual offences | 21 |
| Anti-social behaviour | 19 |
| Shoplifting | 9 |
| Public order | 8 |
| Criminal damage & arson | 5 |
| Burglary | 4 |
Source: data.police.uk. Locations are approximate and cover the surrounding area, not just this street.
Getting around, shops and health
Train stations
- Radyr station 0.6 mi · 11 min walk
- Danescourt station 0.9 mi · 18 min walk
- Llandaf station 0.9 mi · 18 min walk
Nearest bus stops
- Heol Isaf (opp 122, Heol Isaf) 1 min walk
- Heol Isaf (o/s 124, Heol Isaf) 1 min walk
- Shepley Court (after, Heol Isaf) 2 min walk
- Shepley Court (after, Heol Isaf) 2 min walk
GP surgeries
- Radyr Medical Centre
Rectory Close, Radyr, Cardiff · 0.4 mi - Llandaff North Medical Ce
99 Station Road, Llandaff North, Cardiff · 0.9 mi - Whitchurch Village Practice
Whitchurch Medical Centre, Park Road, Cardiff · 1.2 mi - Fairwater Health Centre
Plasmawr Road, Cardiff · 1.3 mi
Supermarkets
- Morrisons Daily Morrisons Daily Cardiff Radyr Station Road · 0.5 mi
- The Co-operative Food Co-op Radyr - Station Road · 0.5 mi
- The Co-operative Food Co-op Llandaff - Radyr Court · 0.5 mi
- Asda Express Asda Llantrisant Express Petrol · 0.9 mi
Pharmacies
- Knights Danescourt Pharmacy · 0.5 mi
- Well · 0.5 mi
- Bainbridge Pharmacy · 0.9 mi
Dentists
- The Courtyard Dental Care · 0.5 mi
- Fairwater Dental Surgery · 0.8 mi
- Dental Surgery · 1.0 mi
Sources: Department for Transport (NaPTAN), NHS England organisation data, and GEOLYTIX Retail Points (open data). Walking times are estimates from straight-line distance.
Area profile
Homes
| Here | Eng & Wales | |
|---|---|---|
| Owned | 76.3% | 62.5% |
| Private rented | 16.2% | 20.3% |
| Social rented | 7.5% | 17.1% |
| Households | 890 |
People
| Here | Eng & Wales | |
|---|---|---|
| Under 15 | 23.9% | 17.4% |
| Aged 15–64 | 67.4% | 64.1% |
| Aged 65+ | 8.6% | 18.6% |
| Residents | 2,290 |
Broadband
| Here | UK | |
|---|---|---|
| Superfast (30Mbit+) | 100% | 95% |
| Ultrafast (300Mbit+) | 95% | 80% |
| Gigabit-capable | 95% | 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.
Mobile signal
| Here | Eng & Wales | |
|---|---|---|
| 4G indoors, all 4 networks | 98% | 89% |
| 4G indoors, at least 1 network | 100% | 100% |
| 4G outdoors, all 4 networks | 100% | 99% |
| Calls indoors, all 4 networks | 99% | 92% |
Share of homes across Cardiff with good coverage (Jul 2025). Signal varies street by street; check your exact address on Ofcom's checker. 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.
Energy ratings and home sizes on Heol Isaf
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Who lives around Heol Isaf
Ethnic group
| Here | Cardiff | |
|---|---|---|
| White | 87.8% | 79.2% |
| Asian, Asian British or Asian Welsh | 5.1% | 9.7% |
| Mixed or Multiple ethnic groups | 4.1% | 4% |
| Other ethnic group | 1.6% | 3.3% |
| Black, Black British, Black Welsh, Caribbean or African | 1.4% | 3.8% |
Religion
| Here | Cardiff | |
|---|---|---|
| No religion | 46.9% | 42.9% |
| Christian | 41.4% | 38.4% |
| Not answered | 6% | 6.3% |
| Muslim | 2.5% | 9.3% |
| Hindu | 2.4% | 1.5% |
| Buddhist | 0.4% | 0.5% |
| Other religion | 0.3% | 0.6% |
| Jewish | 0% | – |
Country of birth
| Here | Cardiff | |
|---|---|---|
| Born in the UK | 90.5% | 83.5% |
| Born outside the UK | 9.5% | 16.5% |
Highest qualification
| Here | Cardiff | |
|---|---|---|
| Level 4 qualifications and above | 64.5% | 40% |
| Level 3 qualifications | 13% | 19.2% |
| Level 2 qualifications | 9.7% | 11.1% |
| No qualifications | 5.7% | 16.3% |
| Level 1 and entry level qualifications | 4.1% | 6.9% |
| Apprenticeship | 2.1% | 3.9% |
| Other qualifications | 0.8% | 2.6% |
General health
| Here | Cardiff | |
|---|---|---|
| Very good health | 65.7% | 50.1% |
| Good health | 26.7% | 31.8% |
| Fair health | 5.7% | 12.2% |
| Bad health | 1.7% | 4.5% |
| Very bad health | 0.3% | 1.4% |
Cars or vans per household
| Here | Cardiff | |
|---|---|---|
| 1 car or van in household | 42.6% | 43% |
| 2 cars or vans in household | 41.1% | 24% |
| 3 or more cars or vans in household | 9.5% | 7% |
| No cars or vans in household | 6.7% | 26% |
Source: Census 2021 (ONS), via Nomis. Percentages of usual residents or households, as recorded in March 2021.
Figures cover the surrounding neighbourhood (Lower Layer Super Output Area, about 1,500 residents). Full demographics of Cardiff.
Planning and heritage near Heol Isaf
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Noise, radon and ground hazards
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Planning applications near Heol Isaf
Recent planning applications around Heol Isaf from the council's planning register. Choose how far to look:
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Get an instant estimate from what you paid and how prices in Cardiff have moved since.
Council tax here
Cardiff Band D is £2,013 a year (Band A £1,342). See every band.
Estate agents near Heol Isaf
- Michael Graham Young 0.5 mi
- Thomas H Wood 0.5 mi
- Kings Super Cut 0.9 mi
- Thomas H Wood 1.2 mi
- Hern & Crabtree 1.3 mi
Agent locations © OpenStreetMap contributors. More local agents
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