3Y Avg Price
£716,869
8 sales
Properties
103
96 freehold · 7 leasehold
Sales / Year
4.4
5-year average
Avg £/sq ft
£239
£2,571/m²
Rank in CF15
11th
of 197 streets
Last Sale
£995,000
Mar 2026
Price History
Every recorded sale on this street, coloured by property type.
Last 10 Sales
180 total recorded
HAFOD Y DDINAS Heol Isaf
Detached
£995,000
Mar 2026
40 Heol Isaf
Semi-Detached
£1,300,000
Aug 2025
90 Heol Isaf
Semi-Detached
£645,000
Jan 2025
77 Heol Isaf
Semi-Detached
£600,000
Oct 2024
60 Heol Isaf
Semi-Detached
£585,000
Aug 2024
1A Heol Isaf
Detached
£794,950
Jul 2024
FLAT 3, HARLECH HOUSE Heol Isaf
Flat/Maisonette
£190,000
Mar 2024
82 Heol Isaf
Semi-Detached
£625,000
Oct 2023
23 Heol Isaf
Flat/Maisonette
£160,000
Feb 2023
17 Heol Isaf
Detached
£1,125,000
Jan 2023
Street Rankings — CF15
Streets ranked by 3-year average sale price. Showing positions 7–16 of 197.
| # | Street | 3Y Avg |
|---|---|---|
| 7 | The Grove | £811,167 |
| 8 | Green Place | £800,000 |
| 8 | Mountain Road | £800,000 |
| 10 | Heol Rufus | £775,000 |
| 11 | Heol Isaf | £716,869 |
| 12 | Pilgrim Close | £705,000 |
| 13 | Heol Roald Dahl | £700,000 |
| 14 | Clos Cefn Bychan | £680,000 |
| 15 | Greenacre | £670,000 |
| 16 | Garth Isaf | £669,000 |
Property Mix
Type
Tenure
EPC Ratings
9 of 103 properties have an EPC record
Avg floor area: 1,841 sq ft (171 m²)
District Context — CF15
CF15 covers the Caerphilly area in South Wales, situated north of Cardiff in the South Wales valleys. It is a long-established residential district with strong community ties and good transport links to the wider region.
Average Property Price - CF15
£354,240
57
National percentile
Average Net Household Income - CF15
£47,390
82
National percentile
10-Year Annualised Price Growth - CF15
3.2%
35
National percentile
10-Year Annualised Rent Growth - CF
4.8%
90
National percentile