SW3 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 828 postcodes across 6 sectors in Kensington and Chelsea.
Full fibre
93%
Gigabit
93%
Superfast
99%
Postcodes
828
SW3 spans 828 postcodes across Kensington and Chelsea. Gigabit reaches 93.4% of premises, and universal superfast coverage combines to make this one of the most uniformly connected large postcodes in this batch.
Broadband speeds in SW3
Share of SW3 premises by the fastest download speed available, averaged across all 828 postcodes in the district.
Superfast connectivity reaches 98.5% of postcodes; gigabit and full fibre both reach 93.4%. Networks capable of 300 Mbps extend to 93.4% of addresses. The 5% gap between superfast and gigabit reflects a small 30-300 Mbps segment. Universal Service Obligation coverage is complete. This distribution confirms substantial recent fibre investment with most properties now capable of gigabit speeds. SW3 covers Kensington and Chelsea's most central addresses, with dense residential properties and commercial office space. This density has supported complete fibre deployment. The postcode sits firmly in London's most connected tier, with gigabit now the norm rather than the exception. Only a small minority of properties will find themselves without gigabit access.
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
0%
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
SW3 splits into 6 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 |
|---|---|---|---|---|
| SW3 1 | 76 | 97% | 92% | 92% |
| SW3 2 | 138 | 98% | 94% | 94% |
| SW3 3 | 171 | 100% | 99% | 99% |
| SW3 4 | 147 | 96% | 87% | 87% |
| SW3 5 | 183 | 100% | 94% | 94% |
| SW3 6 | 113 | 100% | 92% | 92% |
All SW3 1 postcodes (76)
All SW3 2 postcodes (138)
All SW3 3 postcodes (171)
All SW3 4 postcodes (147)
All SW3 5 postcodes (183)
All SW3 6 postcodes (113)
Best deals
Compare broadband deals in SW3
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Living in Kensington and Chelsea
House price data is not available in this dataset. Speed will not constrain household or business operations across SW3.
Crime per month
3
Average recorded crimes per local statistical area
Remote worker score
99/100
Connectivity and amenities for home working
Family score
80/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
SW3 broadband FAQs
What is the typical broadband speed in SW3?
93.4% of postcodes can access gigabit-capable networks delivering 300 Mbps or faster.
Are there slow postcodes in Kensington and Chelsea's SW3?
No postcodes fall below 30 Mbps, and 98.5% have superfast connectivity.
How does SW3 rank among London postcodes?
Gigabit coverage of 93.4% places it among the best-connected central London codes.
What should I do before signing a lease?
Check your specific building with a broadband provider to confirm gigabit or superfast availability.
Neighbouring districts
Check your exact postcode
Every postcode in SW3 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