SE3 7 postcode sector in the SE3 district

SE3 7 is a sector of the SE3 district: every postcode that starts SE3 7. It has 178 postcodes in use, 10 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the SE3 7 sector, by flood risk

Map of every postcode in the SE3 7 sector, by flood risk Of the 178 postcodes in the SE3 7 sector that ONS places, 1 are at medium risk at worst and 177 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Blackheath Westcombe. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A102A2A2213 SE3 7AA: not on the flood risk listSE3 7AD: not on the flood risk listSE3 7AE: not on the flood risk listSE3 7AF: not on the flood risk listSE3 7AG: not on the flood risk listSE3 7AH: not on the flood risk listSE3 7AJ: not on the flood risk listSE3 7AL: not on the flood risk listSE3 7AN: not on the flood risk listSE3 7AP: not on the flood risk listSE3 7AQ: not on the flood risk listSE3 7AR: not on the flood risk listSE3 7AS: not on the flood risk listSE3 7AW: not on the flood risk listSE3 7AX: not on the flood risk listSE3 7AY: not on the flood risk listSE3 7BB: not on the flood risk listSE3 7BD: not on the flood risk listSE3 7BE: not on the flood risk listSE3 7BG: not on the flood risk listSE3 7BH: not on the flood risk listSE3 7BQ: not on the flood risk listSE3 7BT: not on the flood risk listSE3 7BZ: not on the flood risk listSE3 7DA: not on the flood risk listSE3 7DB: not on the flood risk listSE3 7DF: not on the flood risk listSE3 7DJ: not on the flood risk listSE3 7DP: not on the flood risk listSE3 7DR: not on the flood risk listSE3 7DT: not on the flood risk listSE3 7DU: not on the flood risk listSE3 7DW: not on the flood risk listSE3 7DX: not on the flood risk listSE3 7DY: not on the flood risk listSE3 7EF: not on the flood risk listSE3 7EG: not on the flood risk listSE3 7EJ: not on the flood risk listSE3 7EL: not on the flood risk listSE3 7EQ: not on the flood risk listSE3 7EU: not on the flood risk listSE3 7EX: not on the flood risk listSE3 7HB: not on the flood risk listSE3 7HD: not on the flood risk listSE3 7HE: not on the flood risk listSE3 7HF: not on the flood risk listSE3 7HG: not on the flood risk listSE3 7HH: not on the flood risk listSE3 7HL: not on the flood risk listSE3 7HS: not on the flood risk listSE3 7HU: not on the flood risk listSE3 7HZ: not on the flood risk listSE3 7JH: not on the flood risk listSE3 7JP: not on the flood risk listSE3 7JQ: not on the flood risk listSE3 7JR: not on the flood risk listSE3 7JS: not on the flood risk listSE3 7JT: not on the flood risk listSE3 7JU: not on the flood risk listSE3 7JW: not on the flood risk listSE3 7JX: not on the flood risk listSE3 7JY: not on the flood risk listSE3 7JZ: not on the flood risk listSE3 7LB: not on the flood risk listSE3 7LG: not on the flood risk listSE3 7LH: not on the flood risk listSE3 7LJ: not on the flood risk listSE3 7LL: not on the flood risk listSE3 7LN: not on the flood risk listSE3 7LP: not on the flood risk listSE3 7LQ: not on the flood risk listSE3 7LR: not on the flood risk listSE3 7LS: not on the flood risk listSE3 7LT: not on the flood risk listSE3 7LU: not on the flood risk listSE3 7LW: not on the flood risk listSE3 7LX: not on the flood risk listSE3 7LY: not on the flood risk listSE3 7LZ: not on the flood risk listSE3 7NA: not on the flood risk listSE3 7NH: not on the flood risk listSE3 7NJ: not on the flood risk listSE3 7NL: not on the flood risk listSE3 7NN: not on the flood risk listSE3 7NP: not on the flood risk listSE3 7NR: not on the flood risk listSE3 7NS: not on the flood risk listSE3 7NT: not on the flood risk listSE3 7NU: not on the flood risk listSE3 7NX: not on the flood risk listSE3 7NY: not on the flood risk listSE3 7NZ: not on the flood risk listSE3 7PA: not on the flood risk listSE3 7PE: not on the flood risk listSE3 7PF: not on the flood risk listSE3 7PH: not on the flood risk listSE3 7PJ: not on the flood risk listSE3 7PL: not on the flood risk listSE3 7PQ: not on the flood risk listSE3 7PU: not on the flood risk listSE3 7PX: not on the flood risk listSE3 7PY: not on the flood risk listSE3 7PZ: not on the flood risk listSE3 7QA: not on the flood risk listSE3 7QD: not on the flood risk listSE3 7QF: not on the flood risk listSE3 7QG: not on the flood risk listSE3 7QH: not on the flood risk listSE3 7QQ: not on the flood risk listSE3 7QR: not on the flood risk listSE3 7QS: not on the flood risk listSE3 7QT: not on the flood risk listSE3 7QU: not on the flood risk listSE3 7QW: not on the flood risk listSE3 7QX: not on the flood risk listSE3 7QY: not on the flood risk listSE3 7QZ: not on the flood risk listSE3 7RA: not on the flood risk listSE3 7RB: not on the flood risk listSE3 7RD: not on the flood risk listSE3 7RE: not on the flood risk listSE3 7RG: not on the flood risk listSE3 7RH: not on the flood risk listSE3 7RJ: not on the flood risk listSE3 7RL: not on the flood risk listSE3 7RN: not on the flood risk listSE3 7RP: not on the flood risk listSE3 7RQ: not on the flood risk listSE3 7RT: not on the flood risk listSE3 7RU: not on the flood risk listSE3 7RW: not on the flood risk listSE3 7RX: not on the flood risk listSE3 7RZ: not on the flood risk listSE3 7SB: not on the flood risk listSE3 7SD: not on the flood risk listSE3 7SE: not on the flood risk listSE3 7SF: not on the flood risk listSE3 7SG: not on the flood risk listSE3 7SH: not on the flood risk listSE3 7SJ: not on the flood risk listSE3 7SL: not on the flood risk listSE3 7SP: not on the flood risk listSE3 7SQ: not on the flood risk listSE3 7SW: not on the flood risk listSE3 7SX: not on the flood risk listSE3 7SZ: not on the flood risk listSE3 7TA: not on the flood risk listSE3 7TB: not on the flood risk listSE3 7TD: not on the flood risk listSE3 7TE: not on the flood risk listSE3 7TF: not on the flood risk listSE3 7TG: not on the flood risk listSE3 7TH: not on the flood risk listSE3 7TJ: not on the flood risk listSE3 7TL: not on the flood risk listSE3 7TN: not on the flood risk listSE3 7TP: not on the flood risk listSE3 7TR: not on the flood risk listSE3 7TT: not on the flood risk listSE3 7TW: not on the flood risk listSE3 7TZ: not on the flood risk listSE3 7UA: not on the flood risk listSE3 7UB: not on the flood risk listSE3 7UD: not on the flood risk listSE3 7UE: not on the flood risk listSE3 7UF: not on the flood risk listSE3 7UG: not on the flood risk listSE3 7UJ: not on the flood risk listSE3 7UQ: not on the flood risk listSE3 7UX: not on the flood risk listSE3 7WS: not on the flood risk listSE3 7DH: medium flood risk at worst Blackheath Westcombe Map of every postcode in the SE3 7 sector, by flood risk Of the 178 postcodes in the SE3 7 sector that ONS places, 1 are at medium risk at worst and 177 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Blackheath Westcombe. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A2 Blackheath Westcombe
  • A home or business at high risk: 0
  • At medium risk at worst: 1
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 177

Of the 178 postcodes in the SE3 7 sector that ONS places, 1 are at medium risk at worst and 177 are not on the Environment Agency's at-risk list.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The postcodes at medium risk at worst

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

What do homes sell for in SE3 7?

Homes in SE3 7 sold for a typical £504,250 in the 12 months to August 2026, across 86 sales, down 4.9% on the 12 months before, HM Land Registry's figures show.

£504,250 typical price, the 12 months to August 2026
£530,000 12 months to August 2025
▼ down 4.9% on the 12 months before
  • Detached 2 sales, too few to price
  • Semi-detached £1,655,000 13 sales
  • Terraced £950,000 11 sales
  • Flat or maisonette £438,500 60 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start SE3 7. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in SE3 7

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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