SL4 5 postcode sector in the SL4 district

SL4 5 is a sector of the SL4 district: every postcode that starts SL4 5. It has 260 postcodes in use, 7 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 SL4 5 sector, by flood risk

Map of every postcode in the SL4 5 sector, by flood risk Of the 260 postcodes in the SL4 5 sector that ONS places, 8 have a home or business at high risk, 8 are at medium risk at worst, 125 are at low risk at worst, 15 are at very low risk only and 104 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 7 postcodes at high or medium risk. Places named: Windsor, Eton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A332 SL4 5AD: not on the flood risk listSL4 5AE: not on the flood risk listSL4 5AF: not on the flood risk listSL4 5AL: not on the flood risk listSL4 5BB: not on the flood risk listSL4 5BD: not on the flood risk listSL4 5BE: not on the flood risk listSL4 5BH: not on the flood risk listSL4 5DS: not on the flood risk listSL4 5FA: not on the flood risk listSL4 5FN: not on the flood risk listSL4 5FZ: not on the flood risk listSL4 5GT: not on the flood risk listSL4 5GX: not on the flood risk listSL4 5GY: not on the flood risk listSL4 5GZ: not on the flood risk listSL4 5LP: not on the flood risk listSL4 5LQ: not on the flood risk listSL4 5LR: not on the flood risk listSL4 5LS: not on the flood risk listSL4 5LT: not on the flood risk listSL4 5LU: not on the flood risk listSL4 5LW: not on the flood risk listSL4 5LX: not on the flood risk listSL4 5NN: not on the flood risk listSL4 5NP: not on the flood risk listSL4 5NQ: not on the flood risk listSL4 5NR: not on the flood risk listSL4 5NS: not on the flood risk listSL4 5NT: not on the flood risk listSL4 5NU: not on the flood risk listSL4 5NX: not on the flood risk listSL4 5NZ: not on the flood risk listSL4 5PD: not on the flood risk listSL4 5PE: not on the flood risk listSL4 5PH: not on the flood risk listSL4 5PQ: not on the flood risk listSL4 5PR: not on the flood risk listSL4 5PY: not on the flood risk listSL4 5PZ: not on the flood risk listSL4 5QA: not on the flood risk listSL4 5QB: not on the flood risk listSL4 5QD: not on the flood risk listSL4 5QF: not on the flood risk listSL4 5QG: not on the flood risk listSL4 5QN: not on the flood risk listSL4 5QP: not on the flood risk listSL4 5QR: not on the flood risk listSL4 5QS: not on the flood risk listSL4 5QT: not on the flood risk listSL4 5QU: not on the flood risk listSL4 5QW: not on the flood risk listSL4 5QX: not on the flood risk listSL4 5RA: not on the flood risk listSL4 5RB: not on the flood risk listSL4 5RD: not on the flood risk listSL4 5RE: not on the flood risk listSL4 5RF: not on the flood risk listSL4 5RG: not on the flood risk listSL4 5RH: not on the flood risk listSL4 5RJ: not on the flood risk listSL4 5RL: not on the flood risk listSL4 5RN: not on the flood risk listSL4 5RP: not on the flood risk listSL4 5RQ: not on the flood risk listSL4 5RR: not on the flood risk listSL4 5RS: not on the flood risk listSL4 5RT: not on the flood risk listSL4 5RW: not on the flood risk listSL4 5SF: not on the flood risk listSL4 5SG: not on the flood risk listSL4 5SH: not on the flood risk listSL4 5SJ: not on the flood risk listSL4 5SL: not on the flood risk listSL4 5SN: not on the flood risk listSL4 5SP: not on the flood risk listSL4 5SQ: not on the flood risk listSL4 5SS: not on the flood risk listSL4 5ST: not on the flood risk listSL4 5SU: not on the flood risk listSL4 5SW: not on the flood risk listSL4 5SX: not on the flood risk listSL4 5SY: not on the flood risk listSL4 5SZ: not on the flood risk listSL4 5TA: not on the flood risk listSL4 5TB: not on the flood risk listSL4 5TD: not on the flood risk listSL4 5TE: not on the flood risk listSL4 5UA: not on the flood risk listSL4 5UB: not on the flood risk listSL4 5UD: not on the flood risk listSL4 5UF: not on the flood risk listSL4 5UP: not on the flood risk listSL4 5UQ: not on the flood risk listSL4 5UR: not on the flood risk listSL4 5UW: not on the flood risk listSL4 5WF: not on the flood risk listSL4 5WH: not on the flood risk listSL4 5AZ: very low flood risk onlySL4 5BS: very low flood risk onlySL4 5HJ: very low flood risk onlySL4 5HT: very low flood risk onlySL4 5LY: very low flood risk onlySL4 5PP: very low flood risk onlySL4 5PS: very low flood risk onlySL4 5PT: very low flood risk onlySL4 5PU: very low flood risk onlySL4 5PW: very low flood risk onlySL4 5PX: very low flood risk onlySL4 5QY: very low flood risk onlySL4 5QZ: very low flood risk onlySL4 5SE: very low flood risk onlySL4 5TR: very low flood risk onlySL4 5AA: low flood risk at worstSL4 5AB: low flood risk at worstSL4 5AH: low flood risk at worstSL4 5AN: low flood risk at worstSL4 5AP: low flood risk at worstSL4 5AQ: low flood risk at worstSL4 5AR: low flood risk at worstSL4 5AS: low flood risk at worstSL4 5AT: low flood risk at worstSL4 5AU: low flood risk at worstSL4 5AW: low flood risk at worstSL4 5AX: low flood risk at worstSL4 5AY: low flood risk at worstSL4 5BL: low flood risk at worstSL4 5BP: low flood risk at worstSL4 5BQ: low flood risk at worstSL4 5BT: low flood risk at worstSL4 5BU: low flood risk at worstSL4 5BW: low flood risk at worstSL4 5BY: low flood risk at worstSL4 5BZ: low flood risk at worstSL4 5DA: low flood risk at worstSL4 5DB: low flood risk at worstSL4 5DD: low flood risk at worstSL4 5DF: low flood risk at worstSL4 5DG: low flood risk at worstSL4 5DH: low flood risk at worstSL4 5DJ: low flood risk at worstSL4 5DP: low flood risk at worstSL4 5DQ: low flood risk at worstSL4 5DR: low flood risk at worstSL4 5DT: low flood risk at worstSL4 5DU: low flood risk at worstSL4 5DX: low flood risk at worstSL4 5DY: low flood risk at worstSL4 5EA: low flood risk at worstSL4 5EB: low flood risk at worstSL4 5ED: low flood risk at worstSL4 5EG: low flood risk at worstSL4 5EH: low flood risk at worstSL4 5EJ: low flood risk at worstSL4 5EL: low flood risk at worstSL4 5EN: low flood risk at worstSL4 5EP: low flood risk at worstSL4 5EQ: low flood risk at worstSL4 5ER: low flood risk at worstSL4 5ES: low flood risk at worstSL4 5EU: low flood risk at worstSL4 5EW: low flood risk at worstSL4 5EX: low flood risk at worstSL4 5EY: low flood risk at worstSL4 5EZ: low flood risk at worstSL4 5FF: low flood risk at worstSL4 5FG: low flood risk at worstSL4 5FW: low flood risk at worstSL4 5FY: low flood risk at worstSL4 5GD: low flood risk at worstSL4 5GE: low flood risk at worstSL4 5GG: low flood risk at worstSL4 5GL: low flood risk at worstSL4 5GN: low flood risk at worstSL4 5GP: low flood risk at worstSL4 5GR: low flood risk at worstSL4 5GS: low flood risk at worstSL4 5GW: low flood risk at worstSL4 5HA: low flood risk at worstSL4 5HB: low flood risk at worstSL4 5HD: low flood risk at worstSL4 5HE: low flood risk at worstSL4 5HF: low flood risk at worstSL4 5HG: low flood risk at worstSL4 5HL: low flood risk at worstSL4 5HN: low flood risk at worstSL4 5HP: low flood risk at worstSL4 5HQ: low flood risk at worstSL4 5HS: low flood risk at worstSL4 5HU: low flood risk at worstSL4 5HW: low flood risk at worstSL4 5JD: low flood risk at worstSL4 5JE: low flood risk at worstSL4 5JF: low flood risk at worstSL4 5JG: low flood risk at worstSL4 5JL: low flood risk at worstSL4 5JN: low flood risk at worstSL4 5JR: low flood risk at worstSL4 5JS: low flood risk at worstSL4 5JT: low flood risk at worstSL4 5JY: low flood risk at worstSL4 5JZ: low flood risk at worstSL4 5LA: low flood risk at worstSL4 5LD: low flood risk at worstSL4 5LE: low flood risk at worstSL4 5LG: low flood risk at worstSL4 5LH: low flood risk at worstSL4 5LJ: low flood risk at worstSL4 5LZ: low flood risk at worstSL4 5NA: low flood risk at worstSL4 5NB: low flood risk at worstSL4 5ND: low flood risk at worstSL4 5NE: low flood risk at worstSL4 5NF: low flood risk at worstSL4 5NG: low flood risk at worstSL4 5NH: low flood risk at worstSL4 5NL: low flood risk at worstSL4 5NW: low flood risk at worstSL4 5PF: low flood risk at worstSL4 5PG: low flood risk at worstSL4 5PJ: low flood risk at worstSL4 5PL: low flood risk at worstSL4 5PN: low flood risk at worstSL4 5TP: low flood risk at worstSL4 5TT: low flood risk at worstSL4 5TW: low flood risk at worstSL4 5TY: low flood risk at worstSL4 5TZ: low flood risk at worstSL4 5UJ: low flood risk at worstSL4 5UN: low flood risk at worstSL4 5TS: medium flood risk at worstSL4 5JA: medium flood risk at worstSL4 5JQ: medium flood risk at worstSL4 5TJ: medium flood risk at worstSL4 5TL: medium flood risk at worstSL4 5TN: medium flood risk at worstSL4 5TU: medium flood risk at worstSL4 5HZ: high flood riskSL4 5JB: high flood riskSL4 5JH: high flood riskSL4 5JJ: high flood riskSL4 5TG: high flood riskSL4 5TH: high flood riskSL4 5UG: high flood riskSL4 5UL: high flood risk WindsorEton 7 postcodes at high or medium risk, outlined: this goes to SL4 5TG, the one with most homes and businesses at high risk7 postcodes at high or medium risk Map of every postcode in the SL4 5 sector, by flood risk Of the 260 postcodes in the SL4 5 sector that ONS places, 8 have a home or business at high risk, 8 are at medium risk at worst, 125 are at low risk at worst, 15 are at very low risk only and 104 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 7 postcodes at high or medium risk. Places named: Windsor, Eton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. WindsorEton
  • A home or business at high risk: 8
  • At medium risk at worst: 8
  • At low risk at worst: 125
  • At very low risk only: 15
  • Not on the at-risk list: 104
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 260 postcodes in the SL4 5 sector that ONS places, 8 have a home or business at high risk, 8 are at medium risk at worst, 125 are at low risk at worst, 15 are at very low risk only and 104 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

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 high risk

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

SL4 5JJ13 at high riskSL4 5TG10 at high riskSL4 5JH5 at high riskSL4 5HZ4 at high riskSL4 5UL3 at high riskSL4 5JB2 at high riskSL4 5UG2 at high riskSL4 5TH1 at high risk

Where the postcodes at high or medium risk lie together

  • 7 postcodes at high or medium risk, outlined on the map. SL4 5TG, is the one with most homes and businesses at high risk.

What do homes sell for in SL4 5?

Homes in SL4 5 sold for a typical £500,000 in the 12 months to August 2026, across 100 sales, down 4.8% on the 12 months before, HM Land Registry's figures show.

£500,000 typical price, the 12 months to August 2026
£525,000 12 months to August 2025
▼ down 4.8% on the 12 months before
  • Detached £857,025 14 sales
  • Semi-detached £543,500 26 sales
  • Terraced £490,000 41 sales
  • Flat or maisonette £300,000 19 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 SL4 5. 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 SL4 5

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.

SL4 5AASL4 5ABSL4 5ADSL4 5AESL4 5AFSL4 5AHSL4 5ALSL4 5ANSL4 5APSL4 5AQSL4 5ARSL4 5ASSL4 5ATSL4 5AUSL4 5AWSL4 5AXSL4 5AYSL4 5AZSL4 5BBSL4 5BDSL4 5BESL4 5BGSL4 5BHSL4 5BLSL4 5BPSL4 5BQSL4 5BSSL4 5BTSL4 5BUSL4 5BWSL4 5BXSL4 5BYSL4 5BZSL4 5DASL4 5DBSL4 5DDSL4 5DFSL4 5DGSL4 5DHSL4 5DJSL4 5DLSL4 5DPSL4 5DQSL4 5DRSL4 5DSSL4 5DTSL4 5DUSL4 5DXSL4 5DYSL4 5EASL4 5EBSL4 5EDSL4 5EGSL4 5EHSL4 5EJSL4 5ELSL4 5ENSL4 5EPSL4 5EQSL4 5ERSL4 5ESSL4 5ETSL4 5EUSL4 5EWSL4 5EXSL4 5EYSL4 5EZSL4 5FASL4 5FFSL4 5FGSL4 5FNSL4 5FQSL4 5FWSL4 5FYSL4 5FZSL4 5GDSL4 5GESL4 5GFSL4 5GGSL4 5GLSL4 5GNSL4 5GPSL4 5GQSL4 5GRSL4 5GSSL4 5GTSL4 5GWSL4 5GXSL4 5GYSL4 5GZSL4 5HASL4 5HBSL4 5HDSL4 5HESL4 5HFSL4 5HGSL4 5HJSL4 5HLSL4 5HNSL4 5HPSL4 5HQSL4 5HSSL4 5HTSL4 5HUSL4 5HWSL4 5HZSL4 5JASL4 5JBSL4 5JDSL4 5JESL4 5JFSL4 5JGSL4 5JHSL4 5JJSL4 5JLSL4 5JNSL4 5JQSL4 5JRSL4 5JSSL4 5JTSL4 5JYSL4 5JZSL4 5LASL4 5LBSL4 5LDSL4 5LESL4 5LGSL4 5LHSL4 5LJSL4 5LPSL4 5LQSL4 5LRSL4 5LSSL4 5LTSL4 5LUSL4 5LWSL4 5LXSL4 5LYSL4 5LZSL4 5NASL4 5NBSL4 5NDSL4 5NESL4 5NFSL4 5NGSL4 5NHSL4 5NLSL4 5NNSL4 5NPSL4 5NQSL4 5NRSL4 5NSSL4 5NTSL4 5NUSL4 5NWSL4 5NXSL4 5NZSL4 5PASL4 5PDSL4 5PESL4 5PFSL4 5PGSL4 5PHSL4 5PJSL4 5PLSL4 5PNSL4 5PPSL4 5PQSL4 5PRSL4 5PSSL4 5PTSL4 5PUSL4 5PWSL4 5PXSL4 5PYSL4 5PZSL4 5QASL4 5QBSL4 5QDSL4 5QESL4 5QFSL4 5QGSL4 5QNSL4 5QPSL4 5QRSL4 5QSSL4 5QTSL4 5QUSL4 5QWSL4 5QXSL4 5QYSL4 5QZSL4 5RASL4 5RBSL4 5RDSL4 5RESL4 5RFSL4 5RGSL4 5RHSL4 5RJSL4 5RLSL4 5RNSL4 5RPSL4 5RQSL4 5RRSL4 5RSSL4 5RTSL4 5RWSL4 5SESL4 5SFSL4 5SGSL4 5SHSL4 5SJSL4 5SLSL4 5SNSL4 5SPSL4 5SQSL4 5SSSL4 5STSL4 5SUSL4 5SWSL4 5SXSL4 5SYSL4 5SZSL4 5TASL4 5TBSL4 5TDSL4 5TESL4 5TGSL4 5THSL4 5TJSL4 5TLSL4 5TNSL4 5TPSL4 5TRSL4 5TSSL4 5TTSL4 5TUSL4 5TWSL4 5TXSL4 5TYSL4 5TZSL4 5UASL4 5UBSL4 5UDSL4 5UFSL4 5UGSL4 5UJSL4 5ULSL4 5UNSL4 5UPSL4 5UQSL4 5URSL4 5UTSL4 5UUSL4 5UWSL4 5WFSL4 5WHSL4 5ZJSL4 5ZR

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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