SL7 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 677 postcodes across 3 sectors in Buckinghamshire.
Full fibre
0%
Gigabit
80%
Superfast
96%
Postcodes
677
SL7 covers 677 postcodes in Buckinghamshire with reliable cable-based gigabit. Nearly four in five can access 300+ Mbps, though nearly 2% sit below USO.
Broadband speeds in SL7
Share of SL7 premises by the fastest download speed available, averaged across all 677 postcodes in the district.
Gigabit reaches 79.5%, supporting cable speeds above 1,000 Mbps for a clear majority. Superfast coverage is solid at 95.6%. The speed distribution reveals 81.2% at 300+ Mbps, 14.4% in the 30 to 300 Mbps range, and 1.8% below the USO 10 Mbps minimum. This below-USO tail is the highest within the Buckinghamshire cluster, suggesting pockets of legacy copper or remote premises within SL7. Nonetheless, nine in ten postcodes support at least superfast service. Full fibre is not recorded here; cable networks provide all gigabit access. The visible below-USO segment warrants site-specific checks before committing to premises.
Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.
Connectivity in detail
Below 10 Mbps USO
<1%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
0%
Premises that can use a fixed wireless access service
Broadband by sector
SL7 splits into 3 postcode sectors. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.
| Sector | Postcodes | Superfast | Full fibre | Gigabit |
|---|---|---|---|---|
| SL7 1 | 260 | 99% | 0% | 89% |
| SL7 2 | 199 | 92% | 0% | 68% |
| SL7 3 | 218 | 96% | 0% | 79% |
All SL7 1 postcodes (260)
All SL7 2 postcodes (199)
All SL7 3 postcodes (218)
Best deals
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Living in Buckinghamshire
SL7's 677 postcodes are modest by outward-code standards, likely representing a tighter geographic area. The 1.8% below USO is notable and worth investigating before assuming all addresses get decent speeds.
Remote worker score
54/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
SL7 broadband FAQs
What speeds can I expect in SL7?
Most homes get 300+ Mbps via cable. 79.5% can hit gigabit. A small tail of about 1.8% sits below 10 Mbps, so postcode checks are important.
Why is there a below-USO tail here?
Some premises in SL7 remain on legacy copper or sit too remote for recent cable investment. The exact causes require provider checks, not assumptions.
How much of SL7 gets gigabit cable?
79.5%, or roughly four in five postcodes. The rest fall into the slower-but-adequate 30-300 Mbps range.
Is fibre here?
No full fibre is recorded. Cable is the gigabit provider.
Neighbouring districts
Check your exact postcode
Every postcode in SL7 has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.
Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources