DA4 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 241 postcodes across 2 sectors in Sevenoaks.
Full fibre
0%
Gigabit
66%
Superfast
92%
Postcodes
241
DA4 spans 241 postcodes in Dartford and delivers intermediate broadband conditions: 66.2% gigabit, with 25.3% at mid-range speeds and minimal below-USO coverage.
Broadband speeds in DA4
Share of DA4 premises by the fastest download speed available, averaged across all 241 postcodes in the district.
Superfast reaches 91.5% of the 241 postcodes, a solid foundation. Gigabit availability sits between the weaker DA3 and the much stronger outwards, suggesting cable rollout is partial. Speed data confirms this: 66.2% occupy the 300 Mbps tier, 25.3% sit at 30-300 Mbps, and 0.8% fall below 10 Mbps. No postcodes lie below the USO minimum, indicating universal access to at least superfast. DA4 is a middle ground where two speeds coexist across the outward. The distribution between gigabit and superfast postcodes is fairly even, creating a two-tier environment common in areas where infrastructure has been rolled out in phases. Households in the 25.3% superfast band experience adequate speeds for most daily activities, though heavy concurrent use can create bottlenecks.
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
DA4 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 |
|---|---|---|---|---|
| DA4 0 | 104 | 91% | 0% | 77% |
| DA4 9 | 137 | 92% | 0% | 58% |
All DA4 0 postcodes (104)
All DA4 9 postcodes (137)
Best deals
Compare broadband deals in DA4
Deals are priced per address. Enter your full postcode to see every package available where you live.
Free comparison. Opens our deals partner in a new tab.
Living in Sevenoaks
Householders in gigabit postcodes enjoy bandwidth surplus; those in superfast zones manage comfortably for streaming, calls and general work.
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
DA4 broadband FAQs
How does DA4 sit between slower and stronger Dartford codes?
DA4's 66.2% gigabit rate is moderate within Dartford. It represents a moderate broadband environment where outcomes vary by postcode.
What speeds do the 25.3% of non-gigabit postcodes have?
Those postcodes typically access 30-300 Mbps (superfast), enough for streaming, calls and everyday tasks, though gigabit postcodes allow multiple heavy uses simultaneously.
Is there a significant speed cliff in DA4?
The gap between gigabit and superfast postcodes is material but manageable. Both tiers support household connectivity; gigabit is optional rather than essential for most families.
Should I assume my DA4 postcode will be gigabit?
No. Only 66% of DA4 postcodes are gigabit-capable. Request a quote from your intended ISP for your specific address.
Neighbouring districts
Check your exact postcode
Every postcode in DA4 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