3Y Avg Price
£447,000
5 sales
Properties
15
Sales / Year
1.0
5-year average
Avg £/sq ft
—
Rank in SG5
186th
of 342 streets
Last Sale
£430,000
Nov 2025
Price History
Every recorded sale on this street, coloured by property type.
Last 10 Sales
20 total recorded
8 Castles Close
Detached
£430,000
Nov 2025
15 Castles Close
Semi-Detached
£430,000
Aug 2025
2A Castles Close
Detached
£405,000
Dec 2024
20 Castles Close
Semi-Detached
£470,000
Aug 2024
7 Castles Close
Detached
£500,000
Aug 2024
1 Castles Close
Detached
£340,000
Feb 2021
15 Castles Close
Semi-Detached
£320,000
Dec 2017
12 Castles Close
Semi-Detached
£395,000
Oct 2017
13 Castles Close
Semi-Detached
£355,000
Apr 2017
21 Castles Close
Semi-Detached
£225,000
Oct 2015
Street Rankings — SG5
Streets ranked by 3-year average sale price. Showing positions 182–191 of 342.
| # | Street | 3Y Avg |
|---|---|---|
| 182 | Carling Place | £450,000 |
| 183 | Baldock Road | £448,786 |
| 184 | Garden Fields | £448,000 |
| 185 | Beaumont Close | £447,500 |
| 186 | Castles Close | £447,000 |
| 187 | Great Green | £446,000 |
| 188 | Elder Avenue | £445,667 |
| 189 | Bunyan Road | £445,479 |
| 190 | St Marys Avenue | £442,500 |
| 191 | Dane Close | £441,875 |
Property Mix
Type
Tenure
EPC Ratings
0 of 15 properties have an EPC record
District Context — SG5
SG5 covers Letchworth Garden City and surrounding settlements in north Hertfordshire, positioned between Cambridge and London. The area combines planned-town heritage with commuter appeal and established residential communities.
Average Property Price - SG5
£452,146
77
National percentile
12 month avg at 30 Sep 2026
Average Net Household Income - SG5
£49,246
87
National percentile
2023 census data
10-Year Annualised Price Growth - SG5
2.5%
36
National percentile
Estimate at 30 Sep 2026
10-Year Annualised Rent Growth - SG
4.3%
72
National percentile
Estimate at 30 Sep 2026