SL1 2 postcode sector in the SL1 district

SL1 2 is a sector of the SL1 district: every postcode that starts SL1 2. It has 287 postcodes in use, 12 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 SL1 2 sector, by flood risk

Map of every postcode in the SL1 2 sector, by flood risk Of the 287 postcodes in the SL1 2 sector that ONS places, 14 have a home or business at high risk, 5 are at medium risk at worst, 18 are at low risk at worst, 29 are at very low risk only and 221 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 17 postcodes at high or medium risk. Places named: Chalvey, Herschel Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. SL1 2AA: not on the flood risk listSL1 2AB: not on the flood risk listSL1 2AD: not on the flood risk listSL1 2AE: not on the flood risk listSL1 2AF: not on the flood risk listSL1 2AG: not on the flood risk listSL1 2AH: not on the flood risk listSL1 2AJ: not on the flood risk listSL1 2AL: not on the flood risk listSL1 2AN: not on the flood risk listSL1 2AP: not on the flood risk listSL1 2AQ: not on the flood risk listSL1 2AR: not on the flood risk listSL1 2AS: not on the flood risk listSL1 2AT: not on the flood risk listSL1 2AU: not on the flood risk listSL1 2AW: not on the flood risk listSL1 2AX: not on the flood risk listSL1 2AY: not on the flood risk listSL1 2AZ: not on the flood risk listSL1 2BA: not on the flood risk listSL1 2BB: not on the flood risk listSL1 2BD: not on the flood risk listSL1 2BE: not on the flood risk listSL1 2BG: not on the flood risk listSL1 2BH: not on the flood risk listSL1 2BJ: not on the flood risk listSL1 2BL: not on the flood risk listSL1 2BN: not on the flood risk listSL1 2BP: not on the flood risk listSL1 2BQ: not on the flood risk listSL1 2BU: not on the flood risk listSL1 2BW: not on the flood risk listSL1 2BX: not on the flood risk listSL1 2BY: not on the flood risk listSL1 2DB: not on the flood risk listSL1 2DD: not on the flood risk listSL1 2DF: not on the flood risk listSL1 2DG: not on the flood risk listSL1 2DJ: not on the flood risk listSL1 2DN: not on the flood risk listSL1 2DP: not on the flood risk listSL1 2DQ: not on the flood risk listSL1 2DR: not on the flood risk listSL1 2DS: not on the flood risk listSL1 2DT: not on the flood risk listSL1 2DX: not on the flood risk listSL1 2DY: not on the flood risk listSL1 2DZ: not on the flood risk listSL1 2EA: not on the flood risk listSL1 2ED: not on the flood risk listSL1 2EF: not on the flood risk listSL1 2EG: not on the flood risk listSL1 2EJ: not on the flood risk listSL1 2EL: not on the flood risk listSL1 2EP: not on the flood risk listSL1 2ER: not on the flood risk listSL1 2ET: not on the flood risk listSL1 2EX: not on the flood risk listSL1 2FA: not on the flood risk listSL1 2FD: not on the flood risk listSL1 2FE: not on the flood risk listSL1 2FF: not on the flood risk listSL1 2FL: not on the flood risk listSL1 2FR: not on the flood risk listSL1 2FT: not on the flood risk listSL1 2FU: not on the flood risk listSL1 2FY: not on the flood risk listSL1 2GB: not on the flood risk listSL1 2GD: not on the flood risk listSL1 2GE: not on the flood risk listSL1 2GF: not on the flood risk listSL1 2GG: not on the flood risk listSL1 2GR: not on the flood risk listSL1 2GU: not on the flood risk listSL1 2GZ: not on the flood risk listSL1 2HD: not on the flood risk listSL1 2HE: not on the flood risk listSL1 2HF: not on the flood risk listSL1 2HH: not on the flood risk listSL1 2HP: not on the flood risk listSL1 2HR: not on the flood risk listSL1 2HS: not on the flood risk listSL1 2HT: not on the flood risk listSL1 2HU: not on the flood risk listSL1 2HW: not on the flood risk listSL1 2HX: not on the flood risk listSL1 2HY: not on the flood risk listSL1 2JA: not on the flood risk listSL1 2JB: not on the flood risk listSL1 2JD: not on the flood risk listSL1 2JF: not on the flood risk listSL1 2JL: not on the flood risk listSL1 2JS: not on the flood risk listSL1 2JT: not on the flood risk listSL1 2JY: not on the flood risk listSL1 2JZ: not on the flood risk listSL1 2LB: not on the flood risk listSL1 2LD: not on the flood risk listSL1 2LE: not on the flood risk listSL1 2LF: not on the flood risk listSL1 2LG: not on the flood risk listSL1 2LH: not on the flood risk listSL1 2LJ: not on the flood risk listSL1 2LL: not on the flood risk listSL1 2LN: not on the flood risk listSL1 2LP: not on the flood risk listSL1 2LQ: not on the flood risk listSL1 2LR: not on the flood risk listSL1 2LS: not on the flood risk listSL1 2LT: not on the flood risk listSL1 2LU: not on the flood risk listSL1 2LW: not on the flood risk listSL1 2LX: not on the flood risk listSL1 2LY: not on the flood risk listSL1 2LZ: not on the flood risk listSL1 2NA: not on the flood risk listSL1 2NB: not on the flood risk listSL1 2ND: not on the flood risk listSL1 2NE: not on the flood risk listSL1 2NG: not on the flood risk listSL1 2NQ: not on the flood risk listSL1 2NR: not on the flood risk listSL1 2NS: not on the flood risk listSL1 2NT: not on the flood risk listSL1 2NU: not on the flood risk listSL1 2NX: not on the flood risk listSL1 2NY: not on the flood risk listSL1 2NZ: not on the flood risk listSL1 2PD: not on the flood risk listSL1 2PF: not on the flood risk listSL1 2PL: not on the flood risk listSL1 2PP: not on the flood risk listSL1 2PR: not on the flood risk listSL1 2PS: not on the flood risk listSL1 2PT: not on the flood risk listSL1 2PU: not on the flood risk listSL1 2PW: not on the flood risk listSL1 2PX: not on the flood risk listSL1 2PY: not on the flood risk listSL1 2QE: not on the flood risk listSL1 2QG: not on the flood risk listSL1 2QH: not on the flood risk listSL1 2QJ: not on the flood risk listSL1 2QL: not on the flood risk listSL1 2QN: not on the flood risk listSL1 2QP: not on the flood risk listSL1 2QQ: not on the flood risk listSL1 2QR: not on the flood risk listSL1 2QS: not on the flood risk listSL1 2QT: not on the flood risk listSL1 2QU: not on the flood risk listSL1 2QW: not on the flood risk listSL1 2QX: not on the flood risk listSL1 2QZ: not on the flood risk listSL1 2RA: not on the flood risk listSL1 2RB: not on the flood risk listSL1 2RD: not on the flood risk listSL1 2RE: not on the flood risk listSL1 2RF: not on the flood risk listSL1 2RG: not on the flood risk listSL1 2RL: not on the flood risk listSL1 2RN: not on the flood risk listSL1 2RQ: not on the flood risk listSL1 2RW: not on the flood risk listSL1 2SH: not on the flood risk listSL1 2ST: not on the flood risk listSL1 2TA: not on the flood risk listSL1 2TB: not on the flood risk listSL1 2TX: not on the flood risk listSL1 2UD: not on the flood risk listSL1 2UJ: not on the flood risk listSL1 2UP: not on the flood risk listSL1 2UR: not on the flood risk listSL1 2UT: not on the flood risk listSL1 2UW: not on the flood risk listSL1 2WN: not on the flood risk listSL1 2XA: not on the flood risk listSL1 2XD: not on the flood risk listSL1 2XE: not on the flood risk listSL1 2XF: not on the flood risk listSL1 2XG: not on the flood risk listSL1 2XH: not on the flood risk listSL1 2XJ: not on the flood risk listSL1 2XL: not on the flood risk listSL1 2XN: not on the flood risk listSL1 2XP: not on the flood risk listSL1 2XQ: not on the flood risk listSL1 2XR: not on the flood risk listSL1 2XS: not on the flood risk listSL1 2XT: not on the flood risk listSL1 2XU: not on the flood risk listSL1 2XW: not on the flood risk listSL1 2XX: not on the flood risk listSL1 2XY: not on the flood risk listSL1 2XZ: not on the flood risk listSL1 2YA: not on the flood risk listSL1 2YB: not on the flood risk listSL1 2YD: not on the flood risk listSL1 2YF: not on the flood risk listSL1 2YG: not on the flood risk listSL1 2YH: not on the flood risk listSL1 2YJ: not on the flood risk listSL1 2YL: not on the flood risk listSL1 2YN: not on the flood risk listSL1 2YP: not on the flood risk listSL1 2YQ: not on the flood risk listSL1 2YR: not on the flood risk listSL1 2YS: not on the flood risk listSL1 2YT: not on the flood risk listSL1 2YU: not on the flood risk listSL1 2YW: not on the flood risk listSL1 2YX: not on the flood risk listSL1 2YZ: not on the flood risk listSL1 2DA: very low flood risk onlySL1 2DH: very low flood risk onlySL1 2DL: very low flood risk onlySL1 2DU: very low flood risk onlySL1 2JE: very low flood risk onlySL1 2JH: very low flood risk onlySL1 2JN: very low flood risk onlySL1 2JQ: very low flood risk onlySL1 2JW: very low flood risk onlySL1 2PA: very low flood risk onlySL1 2SU: very low flood risk onlySL1 2TD: very low flood risk onlySL1 2TE: very low flood risk onlySL1 2TF: very low flood risk onlySL1 2TG: very low flood risk onlySL1 2TH: very low flood risk onlySL1 2TJ: very low flood risk onlySL1 2TN: very low flood risk onlySL1 2TQ: very low flood risk onlySL1 2TT: very low flood risk onlySL1 2TU: very low flood risk onlySL1 2TY: very low flood risk onlySL1 2TZ: very low flood risk onlySL1 2UA: very low flood risk onlySL1 2UB: very low flood risk onlySL1 2UE: very low flood risk onlySL1 2UN: very low flood risk onlySL1 2UX: very low flood risk onlySL1 2YE: very low flood risk onlySL1 2DE: low flood risk at worstSL1 2JJ: low flood risk at worstSL1 2JP: low flood risk at worstSL1 2PN: low flood risk at worstSL1 2PE: low flood risk at worstSL1 2QB: low flood risk at worstSL1 2RU: low flood risk at worstSL1 2SA: low flood risk at worstSL1 2SE: low flood risk at worstSL1 2SF: low flood risk at worstSL1 2SX: low flood risk at worstSL1 2SY: low flood risk at worstSL1 2SZ: low flood risk at worstSL1 2TL: low flood risk at worstSL1 2TP: low flood risk at worstSL1 2TR: low flood risk at worstSL1 2TS: low flood risk at worstSL1 2TW: low flood risk at worstSL1 2NN: medium flood risk at worstSL1 2NP: medium flood risk at worstSL1 2SB: medium flood risk at worstSL1 2SD: medium flood risk at worstSL1 2SL: medium flood risk at worstSL1 2ES: high flood riskSL1 2JG: high flood riskSL1 2NJ: high flood riskSL1 2NL: high flood riskSL1 2PH: high flood riskSL1 2PQ: high flood riskSL1 2QD: high flood riskSL1 2SJ: high flood riskSL1 2SN: high flood riskSL1 2SP: high flood riskSL1 2SQ: high flood riskSL1 2SR: high flood riskSL1 2SW: high flood risk ChalveyHerschel Park 17 postcodes at high or medium risk, outlined: this goes to SL1 2JG, the one with most homes and businesses at high risk17 postcodes at high or medium risk Map of every postcode in the SL1 2 sector, by flood risk Of the 287 postcodes in the SL1 2 sector that ONS places, 14 have a home or business at high risk, 5 are at medium risk at worst, 18 are at low risk at worst, 29 are at very low risk only and 221 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 17 postcodes at high or medium risk. Places named: Chalvey, Herschel Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. ChalveyHerschel Park
  • A home or business at high risk: 14
  • At medium risk at worst: 5
  • At low risk at worst: 18
  • At very low risk only: 29
  • Not on the at-risk list: 221
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 287 postcodes in the SL1 2 sector that ONS places, 14 have a home or business at high risk, 5 are at medium risk at worst, 18 are at low risk at worst, 29 are at very low risk only and 221 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. 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 high risk

14 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

SL1 2JG19 at high riskSL1 2PQ16 at high riskSL1 2SN15 at high riskSL1 2NL14 at high riskSL1 2QD13 at high riskSL1 2SQ11 at high riskSL1 2SJ10 at high riskSL1 2PH7 at high riskSL1 2ES6 at high riskSL1 2SR4 at high riskSL1 2SW4 at high riskSL1 2PJ3 at high risk

Where the postcodes at high or medium risk lie together

  • 17 postcodes at high or medium risk, outlined on the map. SL1 2JG, is the one with most homes and businesses at high risk.

What do homes sell for in SL1 2?

Homes in SL1 2 sold for a typical £310,000 in the 12 months to August 2026, across 51 sales, down 6.1% on the 12 months before, HM Land Registry's figures show.

£310,000 typical price, the 12 months to August 2026
£330,000 12 months to August 2025
▼ down 6.1% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached £425,000 14 sales
  • Terraced £360,000 10 sales
  • Flat or maisonette £240,000 26 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 SL1 2. 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 SL1 2

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.

SL1 2AASL1 2ABSL1 2ADSL1 2AESL1 2AFSL1 2AGSL1 2AHSL1 2AJSL1 2ALSL1 2ANSL1 2APSL1 2AQSL1 2ARSL1 2ASSL1 2ATSL1 2AUSL1 2AWSL1 2AXSL1 2AYSL1 2AZSL1 2BASL1 2BBSL1 2BDSL1 2BESL1 2BGSL1 2BHSL1 2BJSL1 2BLSL1 2BNSL1 2BPSL1 2BQSL1 2BUSL1 2BWSL1 2BXSL1 2BYSL1 2DASL1 2DBSL1 2DDSL1 2DESL1 2DFSL1 2DGSL1 2DHSL1 2DJSL1 2DLSL1 2DNSL1 2DPSL1 2DQSL1 2DRSL1 2DSSL1 2DTSL1 2DUSL1 2DXSL1 2DYSL1 2DZSL1 2EASL1 2EDSL1 2EFSL1 2EGSL1 2EJSL1 2ELSL1 2EPSL1 2ERSL1 2ESSL1 2ETSL1 2EXSL1 2EZSL1 2FASL1 2FDSL1 2FESL1 2FFSL1 2FLSL1 2FRSL1 2FTSL1 2FUSL1 2FYSL1 2GBSL1 2GDSL1 2GESL1 2GFSL1 2GGSL1 2GRSL1 2GUSL1 2GZSL1 2HDSL1 2HESL1 2HFSL1 2HHSL1 2HJSL1 2HPSL1 2HRSL1 2HSSL1 2HTSL1 2HUSL1 2HWSL1 2HXSL1 2HYSL1 2JASL1 2JBSL1 2JDSL1 2JESL1 2JFSL1 2JGSL1 2JHSL1 2JJSL1 2JLSL1 2JNSL1 2JPSL1 2JQSL1 2JSSL1 2JTSL1 2JWSL1 2JYSL1 2JZSL1 2LBSL1 2LDSL1 2LESL1 2LFSL1 2LGSL1 2LHSL1 2LJSL1 2LLSL1 2LNSL1 2LPSL1 2LQSL1 2LRSL1 2LSSL1 2LTSL1 2LUSL1 2LWSL1 2LXSL1 2LYSL1 2LZSL1 2NASL1 2NBSL1 2NDSL1 2NESL1 2NFSL1 2NGSL1 2NHSL1 2NJSL1 2NLSL1 2NNSL1 2NPSL1 2NQSL1 2NRSL1 2NSSL1 2NTSL1 2NUSL1 2NWSL1 2NXSL1 2NYSL1 2NZSL1 2PASL1 2PDSL1 2PESL1 2PFSL1 2PHSL1 2PJSL1 2PLSL1 2PNSL1 2PPSL1 2PQSL1 2PRSL1 2PSSL1 2PTSL1 2PUSL1 2PWSL1 2PXSL1 2PYSL1 2QBSL1 2QDSL1 2QESL1 2QGSL1 2QHSL1 2QJSL1 2QLSL1 2QNSL1 2QPSL1 2QQSL1 2QRSL1 2QSSL1 2QTSL1 2QUSL1 2QWSL1 2QXSL1 2QZSL1 2RASL1 2RBSL1 2RDSL1 2RESL1 2RFSL1 2RGSL1 2RJSL1 2RLSL1 2RNSL1 2RQSL1 2RUSL1 2RWSL1 2SASL1 2SBSL1 2SDSL1 2SESL1 2SFSL1 2SHSL1 2SJSL1 2SLSL1 2SNSL1 2SPSL1 2SQSL1 2SRSL1 2STSL1 2SUSL1 2SWSL1 2SXSL1 2SYSL1 2SZSL1 2TASL1 2TBSL1 2TDSL1 2TESL1 2TFSL1 2TGSL1 2THSL1 2TJSL1 2TLSL1 2TNSL1 2TPSL1 2TQSL1 2TRSL1 2TSSL1 2TTSL1 2TUSL1 2TWSL1 2TXSL1 2TYSL1 2TZSL1 2UASL1 2UBSL1 2UDSL1 2UESL1 2UJSL1 2UNSL1 2UPSL1 2URSL1 2UTSL1 2UWSL1 2UXSL1 2WJSL1 2WNSL1 2XASL1 2XDSL1 2XESL1 2XFSL1 2XGSL1 2XHSL1 2XJSL1 2XLSL1 2XNSL1 2XPSL1 2XQSL1 2XRSL1 2XSSL1 2XTSL1 2XUSL1 2XWSL1 2XXSL1 2XYSL1 2XZSL1 2YASL1 2YBSL1 2YDSL1 2YESL1 2YFSL1 2YGSL1 2YHSL1 2YJSL1 2YLSL1 2YNSL1 2YPSL1 2YQSL1 2YRSL1 2YSSL1 2YTSL1 2YUSL1 2YWSL1 2YXSL1 2YZ

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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