Broadband in Brentwood

Brentwood's numbers tell a cable-first story. Gigabit availability reaches 79.5% of postcodes while recorded full fibre sits at just 0.9%, so almost all of that top-end capacity shows up as cable network coverage rather than fibre. RM4 is the one outward code bucking the pattern, with full fibre recorded at 70.4% of its postcodes; the other seven, including CM13, CM14 and CM15, show none in the data. Superfast coverage is comfortable at 96.9%, in line with the national norm of about 97%, and only 0.6% of the area's 2,080 postcodes fall below 10 Mbps. For most households the practical menu is a fast cable package now, with the fibre column close to empty outside RM4. Speeds available today are high; the technology mix behind them is unusually lopsided.

Brentwood house hunters can mostly ignore the fibre question and still get speed. A 79.5% gigabit footprint means the majority of addresses can order a package fast enough for any household use, whatever the underlying wires. Buyers who specifically want a full fibre line have a much shorter list, since RM4 is the only outward code where it shows up in volume.