Heol Isaf - CF15 8DY
Key Postcode Insights
CF15 8DY is a residential postcode situated on Heol Isaf, Radyr, Cardiff, CF15 with 8 addresses.
It ranks as the 157th largest and 480th most expensive of the 481 postcodes in the CF15 area. The most common property type is a period house built between 1800 and 1911.
The postcode contains a total of 8 properties: 5 houses and 3 other properties.
- Ave. Sale Price
- £1,042,327
- 10 Year change
- up 39.9%
- Ave. Rental Price
- £3,559pcm
- 10 Year change
- up 71.8%
- Ave. £ per ft²
- £342/ft²
- Ave. Gross Yield
- 4.1%/year/yr
Key Postcode Insights
CF15 8DY is a residential postcode situated on Heol Isaf, Radyr, Cardiff, CF15 with 8 addresses.
It ranks as the 157th largest and 480th most expensive of the 481 postcodes in the CF15 area. The most common property type is a period house built between 1800 and 1911.
The postcode contains a total of 8 properties: 5 houses and 3 other properties.
- Ave. Sale Price
- £1,042,327
- 10 Year change
- up 39.9%
- Ave. Rental Price
- £3,559pcm
- 10 Year change
- up 71.8%
- Ave. £ per ft²
- £342/ft²
- Ave. Gross Yield
- 4.1%/year/yr
Explore Properties in CF15 8DY
- 36 Heol Isaf
5 Bed Period House
- 38 Heol Isaf
House
- 40 Heol Isaf
5 Bed Period House
- 42 Heol Isaf
House
- 44 Heol Isaf
5 Bed Period House
Sales Market Trends
The last sale in CF15 8DY sold for £1,300,000 on 20th August 2025. Since then prices are up an average of 1.2%.
The current average value in the postcode is £1,042,327.
The CF15 8DY Sales Market has increased by 39.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 0.5% | £1,042,327 |
| June 2025 | 1.7% | £1,036,869 |
| June 2024 | 2.2% | £1,019,202 |
| June 2023 | 2.3% | £997,739 |
| June 2022 | 11.2% | £975,307 |
| June 2021 | 2.9% | £877,051 |
| June 2020 | 4.6% | £852,377 |
| June 2019 | 1.4% | £814,544 |
| June 2018 | 4.1% | £803,133 |
| June 2017 | 3.6% | £771,663 |
| June 2016 | 2.3% | £745,088 |
| June 2015 | 7.9% | £727,982 |
| June 2014 | 3.2% | £674,494 |
| June 2013 | 2.3% | £653,291 |
| June 2012 | 3.7% | £638,763 |
| June 2011 | -3.2% | £616,216 |
| June 2010 | 8% | £636,639 |
| June 2009 | -4.4% | £589,315 |
| June 2008 | -0.5% | £616,687 |
| June 2007 | 0% | £619,497 |
Rental Market Trends
The current average rental value in the postcode is £3,559.
The CF15 8DY Rental Market has increased by 71.8% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 1.5% | £3,559pcm |
| June 2025 | 4.4% | £3,506pcm |
| June 2024 | 8.3% | £3,358pcm |
| June 2023 | 11.8% | £3,101pcm |
| June 2022 | 10.9% | £2,772pcm |
| June 2021 | 6.7% | £2,500pcm |
| June 2020 | 2.9% | £2,342pcm |
| June 2019 | 1.7% | £2,277pcm |
| June 2018 | 2.9% | £2,238pcm |
| June 2017 | 5% | £2,175pcm |
| June 2016 | 4.3% | £2,072pcm |
| June 2015 | 3.7% | £1,988pcm |
| June 2014 | 3.1% | £1,916pcm |
| June 2013 | 1.9% | £1,859pcm |
| June 2012 | 2.5% | £1,825pcm |
| June 2011 | 1.7% | £1,781pcm |
| June 2010 | 4.5% | £1,751pcm |
| June 2009 | 1.8% | £1,676pcm |
| June 2008 | 0.5% | £1,646pcm |
| June 2007 | 0% | £1,637pcm |
Sales History
The last recorded sale was on 20th August 2025 for £1,300,000 and since then the market in the area has increased by 1.2%.
CF15 8DY has had 3 sales since 1995, 1 of them in the last twelve months.
- Sold Aug 2025£1,300,000 | 5 Bed House40, Heol Isaf, Cardiff, CF15 8DY40, Heol Isaf, Cardiff, CF15 8DY
- Sold Jun 2017£730,000 | 5 Bed House46, Heol Isaf, Cardiff, CF15 8DY46, Heol Isaf, Cardiff, CF15 8DY
- Sold Mar 2017£709,000 | 5 Bed House44, Heol Isaf, Cardiff, CF15 8DY44, Heol Isaf, Cardiff, CF15 8DY
Nearby Postcodes
CF15 8DY is the 157th largest and the 480th most expensive postcode out of the 481 postcodes in the CF15 area.
- CF15 8EB, Kings Road, Radyr, Cardiff, CF15CF15 8EB11 Addresses|77 m away
- CF15 8EW, Rectory Close, Radyr, Cardiff, CF15CF15 8EW2 Addresses|96 m away
- CF15 8BP, Windsor Road, Radyr, Cardiff, CF15CF15 8BP8 Addresses|118 m away
- CF15 8AA, Station Road, Radyr, Cardiff, CF15CF15 8AA16 Addresses|125 m away
- CF15 8BL, Plymouth Drive, Radyr, Cardiff, CF15CF15 8BL13 Addresses|128 m away
Property Types
- 5 period houses built between 1800 and 1911
- 3 other addresses of unknown type
- period house (5)
- Unknown (3)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys have been conducted for 5 properties.
- The most common rating is D.
- A (0)
- E (1)
- B (0)
- F (0)
- C (1)
- G (1)
- D (2)
- No EPC (3)
Top 3 Most Expensive Sales
- Sold Aug 2025£1,300,000 | 5 Bed House40, Heol Isaf, Cardiff, CF15 8DY40, Heol Isaf, Cardiff, CF15 8DY
- Sold Jan 2023£1,125,000 | 5 Bed House17, Heol Isaf, Cardiff, CF15 8AG17, Heol Isaf, Cardiff, CF15 8AG
- Sold Jul 2011£1,075,000 | 5 Bed House94, Heol Isaf, Cardiff, CF15 8EA94, Heol Isaf, Cardiff, CF15 8EA
Schools Nearby
Public Transport Nearby
The closest station to CF15 8DY is Radyr station, which is 300 metres away.
- Radyr|300 m away
- Coryton|1.5 km away
- Llandaf|1.7 km away
- Danescourt|2.0 km away
