SE3 postcode area guide — Greenwich

Where is SE3?

Broadband & internet speeds in SE3

Strong coverage

Broadband availability in the SE3 postcode district (Greenwich) is Strong — superfast is near-universal and gigabit is rolling out. Across the 735 postcodes Ofcom measures in SE3, superfast broadband (30 Mbit/s or faster) reaches 98.3% of premises and gigabit-capable lines are available to 69.2%.

Around 0% of premises in SE3 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.

Sample postcodes in SE3

Run a speed test to see what you're actually getting, or check your exact postcode.

Mobile signal around Greenwich

Ofcom's coverage model for the wider Greenwich district (129,369 premises):

Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.

Crime in SE3

Police recorded 438 incidents within about a mile of the centre of SE3 in May 2026 (latest published street-level data). The breakdown:

Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).

House prices in SE3

Based on 309 sales registered with HM Land Registry in the last 12 months, the median sold price in SE3 is £535,000, up 4.5% on the previous year (£512,172).

Latest recorded sales in SE3

Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.

Who lives here? Greenwich demographics

Census 2021 figures for the wider Greenwich district (289,068 residents, 114,051 households):

Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.

Schools in and around SE3

Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.

Food hygiene ratings in SE3

185 rated food businesses operate in SE3. 142 hold the top rating of 5, 19 are rated 4, and 2 are rated 2 or below.

Among the 5-rated: 15 Grams, Accent Catering Services at Blackheath High School Gpdst, Accent Caterng Services Ltd, Age Exchange, Aldi.

Source: Food Standards Agency, food hygiene ratings (FHRS) open data.

Energy performance (EPC) in SE3

From a sample of 484 Energy Performance Certificates across 12 SE3 postcodes, the most common rating is band B (average band C). 62% of sampled homes are rated C or better.

Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.

Phone area codes for Greenwich

Landlines around SE3 typically use:

Had a call from an unknown number? Use our free UK phone number checker to see who called.

What's it like living in SE3?

Postcodes in SE3

Neighbouring districts

All South East London (SE) postcode districts ›

Frequently asked questions

Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.