SL3 0 postcode sector in the SL3 district

SL3 0 is a sector of the SL3 district: every postcode that starts SL3 0. It has 162 postcodes in use, 9 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 SL3 0 sector, by flood risk

Map of every postcode in the SL3 0 sector, by flood risk Of the 162 postcodes in the SL3 0 sector that ONS places, 12 have a home or business at high risk, 10 are at medium risk at worst, 24 are at low risk at worst, 35 are at very low risk only and 81 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 9 postcodes at high or medium risk; 6 postcodes at high or medium risk. Places named: Datchet, Poyle, Colnbrook, Richings Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M4A4 SL3 0BB: not on the flood risk listSL3 0BQ: not on the flood risk listSL3 0DA: not on the flood risk listSL3 0DF: not on the flood risk listSL3 0DL: not on the flood risk listSL3 0DX: not on the flood risk listSL3 0EB: not on the flood risk listSL3 0EG: not on the flood risk listSL3 0EH: not on the flood risk listSL3 0EL: not on the flood risk listSL3 0ER: not on the flood risk listSL3 0ET: not on the flood risk listSL3 0FB: not on the flood risk listSL3 0FD: not on the flood risk listSL3 0FE: not on the flood risk listSL3 0FF: not on the flood risk listSL3 0FH: not on the flood risk listSL3 0FL: not on the flood risk listSL3 0FN: not on the flood risk listSL3 0HA: not on the flood risk listSL3 0HD: not on the flood risk listSL3 0HE: not on the flood risk listSL3 0HF: not on the flood risk listSL3 0HN: not on the flood risk listSL3 0HP: not on the flood risk listSL3 0HR: not on the flood risk listSL3 0JH: not on the flood risk listSL3 0JL: not on the flood risk listSL3 0JN: not on the flood risk listSL3 0JQ: not on the flood risk listSL3 0JW: not on the flood risk listSL3 0JX: not on the flood risk listSL3 0JY: not on the flood risk listSL3 0LB: not on the flood risk listSL3 0LE: not on the flood risk listSL3 0LF: not on the flood risk listSL3 0LG: not on the flood risk listSL3 0LH: not on the flood risk listSL3 0LJ: not on the flood risk listSL3 0LL: not on the flood risk listSL3 0LP: not on the flood risk listSL3 0LQ: not on the flood risk listSL3 0LR: not on the flood risk listSL3 0LS: not on the flood risk listSL3 0LT: not on the flood risk listSL3 0LW: not on the flood risk listSL3 0LY: not on the flood risk listSL3 0NH: not on the flood risk listSL3 0NL: not on the flood risk listSL3 0NT: not on the flood risk listSL3 0PG: not on the flood risk listSL3 0PJ: not on the flood risk listSL3 0PL: not on the flood risk listSL3 0PN: not on the flood risk listSL3 0PU: not on the flood risk listSL3 0PW: not on the flood risk listSL3 0QJ: not on the flood risk listSL3 0QR: not on the flood risk listSL3 0QX: not on the flood risk listSL3 0QY: not on the flood risk listSL3 0RA: not on the flood risk listSL3 0RB: not on the flood risk listSL3 0RD: not on the flood risk listSL3 0RE: not on the flood risk listSL3 0RF: not on the flood risk listSL3 0RG: not on the flood risk listSL3 0RH: not on the flood risk listSL3 0RJ: not on the flood risk listSL3 0XA: not on the flood risk listSL3 0YA: not on the flood risk listSL3 0AA: very low flood risk onlySL3 0AE: very low flood risk onlySL3 0AH: very low flood risk onlySL3 0AL: very low flood risk onlySL3 0AP: very low flood risk onlySL3 0AW: very low flood risk onlySL3 0AX: very low flood risk onlySL3 0AY: very low flood risk onlySL3 0BH: very low flood risk onlySL3 0BL: very low flood risk onlySL3 0BN: very low flood risk onlySL3 0BS: very low flood risk onlySL3 0DB: very low flood risk onlySL3 0DG: very low flood risk onlySL3 0DP: very low flood risk onlySL3 0DQ: very low flood risk onlySL3 0EZ: very low flood risk onlySL3 0FJ: very low flood risk onlySL3 0HJ: very low flood risk onlySL3 0HQ: very low flood risk onlySL3 0HT: very low flood risk onlySL3 0JB: very low flood risk onlySL3 0JD: very low flood risk onlySL3 0JE: very low flood risk onlySL3 0JF: very low flood risk onlySL3 0JJ: very low flood risk onlySL3 0NU: very low flood risk onlySL3 0NW: very low flood risk onlySL3 0PR: very low flood risk onlySL3 0PS: very low flood risk onlySL3 0QT: very low flood risk onlySL3 0SB: very low flood risk onlySL3 0TW: very low flood risk onlySL3 0AQ: low flood risk at worstSL3 0EA: low flood risk at worstSL3 0EN: low flood risk at worstSL3 0HX: low flood risk at worstSL3 0HY: low flood risk at worstSL3 0HZ: low flood risk at worstSL3 0JT: low flood risk at worstSL3 0LN: low flood risk at worstSL3 0NJ: low flood risk at worstSL3 0NN: low flood risk at worstSL3 0NX: low flood risk at worstSL3 0NY: low flood risk at worstSL3 0NZ: low flood risk at worstSL3 0PA: low flood risk at worstSL3 0PB: low flood risk at worstSL3 0PD: low flood risk at worstSL3 0PP: low flood risk at worstSL3 0PQ: low flood risk at worstSL3 0PY: low flood risk at worstSL3 0QE: low flood risk at worstSL3 0QG: low flood risk at worstSL3 0QH: low flood risk at worstSL3 0QQ: low flood risk at worstSL3 0AU: medium flood risk at worstSL3 0HS: medium flood risk at worstSL3 0JS: medium flood risk at worstSL3 0NB: medium flood risk at worstSL3 0PZ: medium flood risk at worstSL3 0QA: medium flood risk at worstSL3 0QB: medium flood risk at worstSL3 0QD: medium flood risk at worstSL3 0QF: medium flood risk at worstSL3 0QW: medium flood risk at worstSL3 0AT: high flood riskSL3 0ED: high flood riskSL3 0JP: high flood riskSL3 0JU: high flood riskSL3 0JZ: high flood riskSL3 0LU: high flood riskSL3 0LX: high flood riskSL3 0ND: high flood riskSL3 0NF: high flood riskSL3 0NP: high flood riskSL3 0RL: high flood risk DatchetPoyleColnbrookRichings Park 9 postcodes at high or medium risk, outlined: this goes to SL3 0NF, the one with most homes and businesses at high risk9 postcodes at high or medium risk6 postcodes at high or medium risk, outlined: this goes to SL3 0QB, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in the SL3 0 sector, by flood risk Of the 162 postcodes in the SL3 0 sector that ONS places, 12 have a home or business at high risk, 10 are at medium risk at worst, 24 are at low risk at worst, 35 are at very low risk only and 81 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 9 postcodes at high or medium risk; 6 postcodes at high or medium risk. Places named: Datchet, Poyle, Colnbrook. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M4 DatchetPoyleColnbrook
  • A home or business at high risk: 12
  • At medium risk at worst: 10
  • At low risk at worst: 24
  • At very low risk only: 35
  • Not on the at-risk list: 81
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 162 postcodes in the SL3 0 sector that ONS places, 12 have a home or business at high risk, 10 are at medium risk at worst, 24 are at low risk at worst, 35 are at very low risk only and 81 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.

SL3 0NF13 at high riskSL3 0ND11 at high riskSL3 0NG9 at high riskSL3 0LU8 at high riskSL3 0JZ4 at high riskSL3 0AT3 at high riskSL3 0ED3 at high riskSL3 0LX2 at high riskSL3 0RL2 at high riskSL3 0JU1 at high riskSL3 0JP1 at high riskSL3 0NP1 at high risk

Where the postcodes at high or medium risk lie together

  • 9 postcodes at high or medium risk, outlined on the map. SL3 0NF, is the one with most homes and businesses at high risk.
  • 6 postcodes at high or medium risk, outlined on the map. SL3 0QB, is the one with most homes and businesses at high risk.

What do homes sell for in SL3 0?

Homes in SL3 0 sold for a typical £407,000 in the 12 months to August 2026, across 27 sales, up 35.7% on the 12 months before, HM Land Registry's figures show.

£407,000 typical price, the 12 months to August 2026
£300,000 12 months to August 2025
▲ up 35.7% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached £527,000 9 sales
  • Terraced £380,000 12 sales
  • Flat or maisonette £167,000 5 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 SL3 0. 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 SL3 0

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.

SL3 0AASL3 0AESL3 0AHSL3 0ALSL3 0APSL3 0AQSL3 0ATSL3 0AUSL3 0AWSL3 0AXSL3 0AYSL3 0BBSL3 0BHSL3 0BLSL3 0BNSL3 0BQSL3 0BSSL3 0DASL3 0DBSL3 0DFSL3 0DGSL3 0DLSL3 0DPSL3 0DQSL3 0DXSL3 0EASL3 0EBSL3 0EDSL3 0EGSL3 0EHSL3 0ELSL3 0ENSL3 0ERSL3 0ETSL3 0EZSL3 0FBSL3 0FDSL3 0FESL3 0FFSL3 0FHSL3 0FJSL3 0FLSL3 0FNSL3 0HASL3 0HDSL3 0HESL3 0HFSL3 0HJSL3 0HNSL3 0HPSL3 0HQSL3 0HRSL3 0HSSL3 0HTSL3 0HUSL3 0HXSL3 0HYSL3 0HZSL3 0JASL3 0JBSL3 0JDSL3 0JESL3 0JFSL3 0JGSL3 0JHSL3 0JJSL3 0JLSL3 0JNSL3 0JPSL3 0JQSL3 0JRSL3 0JSSL3 0JTSL3 0JUSL3 0JWSL3 0JXSL3 0JYSL3 0JZSL3 0LASL3 0LBSL3 0LDSL3 0LESL3 0LFSL3 0LGSL3 0LHSL3 0LJSL3 0LLSL3 0LNSL3 0LPSL3 0LQSL3 0LRSL3 0LSSL3 0LTSL3 0LUSL3 0LWSL3 0LXSL3 0LYSL3 0LZSL3 0NASL3 0NBSL3 0NDSL3 0NFSL3 0NGSL3 0NHSL3 0NJSL3 0NLSL3 0NNSL3 0NPSL3 0NSSL3 0NTSL3 0NUSL3 0NWSL3 0NXSL3 0NYSL3 0NZSL3 0PASL3 0PBSL3 0PDSL3 0PGSL3 0PHSL3 0PJSL3 0PLSL3 0PNSL3 0PPSL3 0PQSL3 0PRSL3 0PSSL3 0PTSL3 0PUSL3 0PWSL3 0PYSL3 0PZSL3 0QASL3 0QBSL3 0QDSL3 0QESL3 0QFSL3 0QGSL3 0QHSL3 0QJSL3 0QLSL3 0QQSL3 0QRSL3 0QTSL3 0QWSL3 0QXSL3 0QYSL3 0RASL3 0RBSL3 0RDSL3 0RESL3 0RFSL3 0RGSL3 0RHSL3 0RJSL3 0RLSL3 0SBSL3 0TWSL3 0XASL3 0YASL3 0YRSL3 0YS

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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