DA3 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 344 postcodes across 2 sectors in Sevenoaks.
Full fibre
0%
Gigabit
52%
Superfast
92%
Postcodes
344
DA3 in Dartford represents a more limited broadband environment, with gigabit capping at 52.1% and a high 38.2% of postcodes at mid-range speeds. This is the weakest outward in the Dartford pocket.
Broadband speeds in DA3
Share of DA3 premises by the fastest download speed available, averaged across all 344 postcodes in the district.
Superfast coverage is 91.6%, marking a distinct drop from other Dartford codes. Gigabit availability (52.1%) is roughly half, indicating extensive areas beyond cable's reach or where infrastructure relies on superfast connections. The speed distribution starkly illustrates this: 53.4% of postcodes reach 300 Mbps, but 38.2% occupy the 30-300 Mbps band, nearly four out of ten. Below-10 Mbps postcodes are marginal (0.7%), and no postcodes fall below the USO threshold, so basic connectivity is universal. This is the softest broadband picture in the immediate Dartford set.
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
DA3 splits into 2 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 |
|---|---|---|---|---|
| DA3 7 | 177 | 93% | 0% | 54% |
| DA3 8 | 167 | 90% | 0% | 50% |
All DA3 7 postcodes (177)
All DA3 8 postcodes (167)
Best deals
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Living in Sevenoaks
DA3 is for households ready to accept superfast rather than gigabit. Households here typically support standard streaming, video calls, and browsing without difficulty, but intensive activities or multiple simultaneous users benefit from gigabit.
Remote worker score
53/100
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
DA3 broadband FAQs
Is DA3 noticeably slower than DA2 and DA4?
Yes. Gigabit drops to 52%, and 38% of postcodes hover at 30-300 Mbps rather than gigabit speeds. If speed consistency matters, DA2 and DA4 are measurably better bets.
What's the typical speed in DA3?
Most postcodes reach superfast (30 Mbps minimum). Just over half (53.4%) reach gigabit speeds, but the remainder are in the 30-300 Mbps range, still adequate for daily use.
Can families here stream and work from home without issues?
Yes, for most of the outward. The 38.2% of postcodes at 30-300 Mbps can handle typical household demands. Those at gigabit postcodes will have no constraints.
Why is DA3 weaker than nearby Dartford codes?
Broadband infrastructure deployment is uneven across Dartford. DA3 reflects areas where cable investment has been lighter or where geography favours superfast over gigabit deployment.
Neighbouring districts
Check your exact postcode
Every postcode in DA3 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