3Y Avg Price
£340,417
6 sales
Properties
40
29 freehold · 11 leasehold
Sales / Year
2.6
5-year average
Avg £/sq ft
£543
£5,840/m²
Rank in AL7
215th
of 276 streets
Last Sale
£250,000
Feb 2026
Price History
Every recorded sale on this street, coloured by property type.
Last 10 Sales
115 total recorded
32 Duncan Close
Flat/Maisonette
£250,000
Feb 2026
3 Duncan Close
Semi-Detached
£410,000
Sept 2025
21 Duncan Close
Terraced
£365,000
Sept 2024
10 Duncan Close
Terraced
£420,000
Jul 2024
44 Duncan Close
Terraced
£350,000
Jul 2024
29 Duncan Close
Flat/Maisonette
£247,500
Jan 2024
27 Duncan Close
Flat/Maisonette
£212,500
Apr 2023
35 Duncan Close
Terraced
£380,000
Apr 2023
24 Duncan Close
Flat/Maisonette
£210,000
Dec 2022
37 Duncan Close
Terraced
£375,000
Aug 2022
Street Rankings — AL7
Streets ranked by 3-year average sale price. Showing positions 211–220 of 276.
| # | Street | 3Y Avg |
|---|---|---|
| 211 | Edgars Court | £345,000 |
| 212 | Eddington Crescent | £344,500 |
| 212 | Oaktree Garth | £344,500 |
| 214 | Mill Green Road | £340,778 |
| 215 | Duncan Close | £340,417 |
| 216 | Longmore Gardens | £340,000 |
| 217 | Tempsford | £334,889 |
| 218 | The Swallows | £334,100 |
| 219 | Hurstlings | £332,500 |
| 220 | By The Mount | £327,500 |
Property Mix
Type
Tenure
EPC Ratings
32 of 40 properties have an EPC record
Avg floor area: 614 sq ft (57 m²)
District Context — AL7
AL7 covers Welwyn Garden City and surrounding areas in Hertfordshire, north of London. It is a well-established commuter belt with suburban character and good transport links.
Average Property Price - AL7
£398,173
69
National percentile
12 month avg at 30 Sep 2026
Average Net Household Income - AL7
£44,456
74
National percentile
2023 census data
10-Year Annualised Price Growth - AL7
2.3%
30
National percentile
Estimate at 30 Sep 2026
10-Year Annualised Rent Growth - AL
3.8%
41
National percentile
Estimate at 30 Sep 2026