SG1 6AX — North Hertfordshire
Sold prices, broadband, crime and local data for the SG1 6AX postcode, UK.
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Sold house prices at SG1 6AX
| Date | Price | Address | Type |
|---|---|---|---|
| 7 May 2026 | £435,000 | 50 Blackdown Close | Semi-detached |
| 18 Mar 2025 | £385,000 | 84 Blackdown Close | Semi-detached |
| 29 May 2024 | £330,000 | 60 Blackdown Close | Terraced |
| 29 Sep 2023 | £460,000 | 18 Blackdown Close | Semi-detached |
| 28 Sep 2023 | £460,000 | 18 Blackdown Close | Semi-detached |
| 8 Sep 2023 | £345,000 | 34 Blackdown Close | Semi-detached |
Broadband at SG1 6AX
Superfast (30Mb+)
100%
Gigabit-capable
100%
Median download
—
Median upload
—
Figures are Ofcom availability data for this exact postcode. Use the checker above for a live lookup including mobile signal on all four networks.
Energy performance certificates at SG1 6AX
30 EPCs are registered at this postcode (England & Wales register, certificates lodged since 2012; older ones may have expired or been replaced).
| Property | Rating | Registered |
|---|---|---|
| 50 Blackdown Close | Band C | Oct 2025 |
| 88 Blackdown Close | Band C | Sep 2025 |
| 46 Blackdown Close | Band C | Jul 2024 |
| 18 Blackdown Close | Band C | Jun 2023 |
| 38 Blackdown Close | Band C | May 2023 |
| 70 Blackdown Close | Band D | Mar 2023 |
| 48 Blackdown Close | Band C | Sep 2022 |
| 12 Blackdown Close | Band C | Jun 2022 |
| 54 Blackdown Close | Band D | Apr 2022 |
| 26 BLACKDOWN CLOSE | Band C | Nov 2020 |
| 78, Blackdown Close | Band C | Sep 2020 |
| 68, Blackdown Close | Band C | Dec 2019 |
| 10, Blackdown Close | Band D | Oct 2019 |
| 82, Blackdown Close | Band C | Sep 2019 |
| 64, Blackdown Close | Band D | Mar 2019 |
Source: MHCLG Energy Performance of Buildings Data. Typical ratings for the wider district are on the SG1 area report.
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Contains HM Land Registry data © Crown copyright and database right 2026; crime data from police.uk; broadband data from Ofcom Connected Nations — Open Government Licence v3.0.