3Y Avg Price
£793,750
4 sales
Properties
27
Sales / Year
0.8
5-year average
Avg £/sq ft
£427
£4,592/m²
Rank in AL6
63rd
of 156 streets
Last Sale
£600,000
Mar 2026
Price History
Every recorded sale on this street, coloured by property type.
Last 10 Sales
56 total recorded
9 Mardley Hill
Detached
£600,000
Mar 2026
49 Mardley Hill
Detached
£950,000
Sept 2025
45 Mardley Hill
Detached
£575,000
Feb 2025
18 Mardley Hill
Detached
£1,050,000
Oct 2024
15 Mardley Hill
Detached
£456,000
Oct 2020
18 Mardley Hill
Detached
£830,000
Aug 2020
47 Mardley Hill
Terraced
£875,000
Jun 2020
29 Mardley Hill
Detached
£857,000
Feb 2018
31 Mardley Hill
Terraced
£781,500
Jul 2017
17 Mardley Hill
Detached
£600,000
Apr 2016
Street Rankings — AL6
Streets ranked by 3-year average sale price. Showing positions 59–68 of 156.
| # | Street | 3Y Avg |
|---|---|---|
| 59 | Godfries Close | £806,750 |
| 60 | The Green | £800,000 |
| 61 | Roman Way | £797,500 |
| 62 | Hertford Road | £794,300 |
| 63 | Mardley Hill | £793,750 |
| 64 | The Avenue | £792,500 |
| 65 | Fulling Mill Lane | £790,000 |
| 66 | Danesbury Park Road | £785,000 |
| 67 | The Walled Garden | £782,500 |
| 68 | St Johns Close | £780,000 |
Property Mix
Type
Tenure
EPC Ratings
11 of 27 properties have an EPC record
Avg floor area: 2,013 sq ft (187 m²)
District Context — AL6
AL6 covers areas around Welwyn Garden City and Hatfield in Hertfordshire, north of London. It is an established commuter belt district with strong professional employment and family-oriented housing.
Average Property Price - AL6
£799,839
96
National percentile
Average Net Household Income - AL6
£51,293
91
National percentile
10-Year Annualised Price Growth - AL6
3.4%
43
National percentile
10-Year Annualised Rent Growth - AL
3.9%
50
National percentile