SL7 3 postcode sector in the SL7 district

SL7 3 is a sector of the SL7 district: every postcode that starts SL7 3. It has 220 postcodes in use, 2 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 SL7 3 sector, by gigabit broadband

Map of every postcode in the SL7 3 sector, by gigabit broadband Of the 220 postcodes in the SL7 3 sector that ONS places, 30 have no home or business that can get gigabit, 53 have some that can, 134 can all get it and 3 have no Ofcom figure. Places named: Marlow, Marlow Bottom. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M40A404 SL7 3DP: no Ofcom figureSL7 3FQ: no Ofcom figureSL7 3RG: no Ofcom figureSL7 3AA: gigabit for allSL7 3AB: gigabit for allSL7 3AD: gigabit for allSL7 3AE: gigabit for allSL7 3AG: gigabit for allSL7 3AH: gigabit for allSL7 3AJ: gigabit for allSL7 3AL: gigabit for allSL7 3AN: gigabit for allSL7 3AP: gigabit for allSL7 3AQ: gigabit for allSL7 3AR: gigabit for allSL7 3AS: gigabit for allSL7 3AT: gigabit for allSL7 3AU: gigabit for allSL7 3AW: gigabit for allSL7 3AX: gigabit for allSL7 3AY: gigabit for allSL7 3AZ: gigabit for allSL7 3BA: gigabit for allSL7 3BB: gigabit for allSL7 3BD: gigabit for allSL7 3BE: gigabit for allSL7 3BF: gigabit for allSL7 3BH: gigabit for allSL7 3BJ: gigabit for allSL7 3BL: gigabit for allSL7 3BN: gigabit for allSL7 3BQ: gigabit for allSL7 3BW: gigabit for allSL7 3DX: gigabit for allSL7 3EB: gigabit for allSL7 3EG: gigabit for allSL7 3EH: gigabit for allSL7 3EJ: gigabit for allSL7 3EL: gigabit for allSL7 3EN: gigabit for allSL7 3EP: gigabit for allSL7 3EQ: gigabit for allSL7 3ER: gigabit for allSL7 3ES: gigabit for allSL7 3ET: gigabit for allSL7 3EU: gigabit for allSL7 3EW: gigabit for allSL7 3EX: gigabit for allSL7 3EY: gigabit for allSL7 3EZ: gigabit for allSL7 3FG: gigabit for allSL7 3FH: gigabit for allSL7 3FJ: gigabit for allSL7 3FL: gigabit for allSL7 3FN: gigabit for allSL7 3FP: gigabit for allSL7 3HA: gigabit for allSL7 3HB: gigabit for allSL7 3HH: gigabit for allSL7 3HJ: gigabit for allSL7 3HN: gigabit for allSL7 3HT: gigabit for allSL7 3HW: gigabit for allSL7 3HX: gigabit for allSL7 3HY: gigabit for allSL7 3JB: gigabit for allSL7 3JE: gigabit for allSL7 3JF: gigabit for allSL7 3JG: gigabit for allSL7 3JP: gigabit for allSL7 3JR: gigabit for allSL7 3JU: gigabit for allSL7 3JX: gigabit for allSL7 3JY: gigabit for allSL7 3JZ: gigabit for allSL7 3LA: gigabit for allSL7 3LB: gigabit for allSL7 3LE: gigabit for allSL7 3LG: gigabit for allSL7 3LH: gigabit for allSL7 3LJ: gigabit for allSL7 3LL: gigabit for allSL7 3LN: gigabit for allSL7 3LQ: gigabit for allSL7 3LW: gigabit for allSL7 3ND: gigabit for allSL7 3NF: gigabit for allSL7 3NG: gigabit for allSL7 3NH: gigabit for allSL7 3NJ: gigabit for allSL7 3NL: gigabit for allSL7 3NR: gigabit for allSL7 3NS: gigabit for allSL7 3NX: gigabit for allSL7 3NZ: gigabit for allSL7 3PB: gigabit for allSL7 3PD: gigabit for allSL7 3PE: gigabit for allSL7 3PG: gigabit for allSL7 3PN: gigabit for allSL7 3PP: gigabit for allSL7 3PQ: gigabit for allSL7 3PR: gigabit for allSL7 3PS: gigabit for allSL7 3PT: gigabit for allSL7 3PU: gigabit for allSL7 3PW: gigabit for allSL7 3PX: gigabit for allSL7 3PY: gigabit for allSL7 3PZ: gigabit for allSL7 3QA: gigabit for allSL7 3QB: gigabit for allSL7 3QD: gigabit for allSL7 3QG: gigabit for allSL7 3QH: gigabit for allSL7 3QJ: gigabit for allSL7 3QL: gigabit for allSL7 3QN: gigabit for allSL7 3QP: gigabit for allSL7 3QQ: gigabit for allSL7 3QU: gigabit for allSL7 3QW: gigabit for allSL7 3QY: gigabit for allSL7 3RJ: gigabit for allSL7 3RL: gigabit for allSL7 3RN: gigabit for allSL7 3RW: gigabit for allSL7 3SD: gigabit for allSL7 3SE: gigabit for allSL7 3SF: gigabit for allSL7 3SY: gigabit for allSL7 3TB: gigabit for allSL7 3XA: gigabit for allSL7 3XB: gigabit for allSL7 3XD: gigabit for allSL7 3AF: some gigabitSL7 3BX: some gigabitSL7 3DF: some gigabitSL7 3DG: some gigabitSL7 3ED: some gigabitSL7 3EE: some gigabitSL7 3EF: some gigabitSL7 3GZ: some gigabitSL7 3HF: some gigabitSL7 3HP: some gigabitSL7 3HR: some gigabitSL7 3HS: some gigabitSL7 3HU: some gigabitSL7 3HZ: some gigabitSL7 3JA: some gigabitSL7 3JD: some gigabitSL7 3JQ: some gigabitSL7 3JT: some gigabitSL7 3LD: some gigabitSL7 3LF: some gigabitSL7 3LT: some gigabitSL7 3LU: some gigabitSL7 3LX: some gigabitSL7 3LY: some gigabitSL7 3LZ: some gigabitSL7 3NA: some gigabitSL7 3NB: some gigabitSL7 3NE: some gigabitSL7 3NN: some gigabitSL7 3NQ: some gigabitSL7 3NW: some gigabitSL7 3NY: some gigabitSL7 3PA: some gigabitSL7 3PF: some gigabitSL7 3PH: some gigabitSL7 3PJ: some gigabitSL7 3PL: some gigabitSL7 3QE: some gigabitSL7 3QF: some gigabitSL7 3QR: some gigabitSL7 3QT: some gigabitSL7 3RD: some gigabitSL7 3RH: some gigabitSL7 3RQ: some gigabitSL7 3RS: some gigabitSL7 3RT: some gigabitSL7 3RZ: some gigabitSL7 3SA: some gigabitSL7 3SB: some gigabitSL7 3SR: some gigabitSL7 3TZ: some gigabitSL7 3YA: some gigabitSL7 3BT: no gigabitSL7 3BU: no gigabitSL7 3BY: no gigabitSL7 3BZ: no gigabitSL7 3DA: no gigabitSL7 3DB: no gigabitSL7 3DD: no gigabitSL7 3DE: no gigabitSL7 3DH: no gigabitSL7 3DJ: no gigabitSL7 3DL: no gigabitSL7 3DN: no gigabitSL7 3DQ: no gigabitSL7 3DT: no gigabitSL7 3DU: no gigabitSL7 3DW: no gigabitSL7 3EA: no gigabitSL7 3NT: no gigabitSL7 3NU: no gigabitSL7 3RA: no gigabitSL7 3RB: no gigabitSL7 3RE: no gigabitSL7 3RF: no gigabitSL7 3RP: no gigabitSL7 3RR: no gigabitSL7 3RU: no gigabitSL7 3RX: no gigabitSL7 3RY: no gigabitSL7 3SG: no gigabitSL7 3SL: no gigabit MarlowMarlow Bottom Map of every postcode in the SL7 3 sector, by gigabit broadband Of the 220 postcodes in the SL7 3 sector that ONS places, 30 have no home or business that can get gigabit, 53 have some that can, 134 can all get it and 3 have no Ofcom figure. Places named: Marlow, Marlow Bottom. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. MarlowMarlow Bottom
  • No home or business can get gigabit: 30
  • Some can get gigabit: 53
  • Every home and business can get gigabit: 134
  • Ofcom gives no figure: 3

Of the 220 postcodes in the SL7 3 sector that ONS places, 30 have no home or business that can get gigabit, 53 have some that can, 134 can all get it and 3 have no Ofcom figure.

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.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.

Postcodes without gigabit

30 postcodes here have no gigabit. These are the 12 first in postcode order.

SL7 3BTSL7 3BUSL7 3BYSL7 3BZSL7 3DASL7 3DBSL7 3DDSL7 3DESL7 3DHSL7 3DJSL7 3DLSL7 3DN

What do homes sell for in SL7 3?

Homes in SL7 3 sold for a typical £662,500 in the 12 months to September 2026, across 76 sales, HM Land Registry's figures show. The 12 months before gave £675,000 from 105 sales: not a change larger than chance would explain, given which homes happened to sell.

£662,500 typical price, the 12 months to September 2026
£675,000 12 months to September 2025
  • Detached £840,000 33 sales
  • Semi-detached £610,000 15 sales
  • Terraced £598,000 16 sales
  • Flat or maisonette £280,000 12 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 SL7 3. 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 October 2026.

Postcodes in SL7 3

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.

SL7 3AASL7 3ABSL7 3ADSL7 3AESL7 3AFSL7 3AGSL7 3AHSL7 3AJSL7 3ALSL7 3ANSL7 3APSL7 3AQSL7 3ARSL7 3ASSL7 3ATSL7 3AUSL7 3AWSL7 3AXSL7 3AYSL7 3AZSL7 3BASL7 3BBSL7 3BDSL7 3BESL7 3BFSL7 3BGSL7 3BHSL7 3BJSL7 3BLSL7 3BNSL7 3BQSL7 3BTSL7 3BUSL7 3BWSL7 3BXSL7 3BYSL7 3BZSL7 3DASL7 3DBSL7 3DDSL7 3DESL7 3DFSL7 3DGSL7 3DHSL7 3DJSL7 3DLSL7 3DNSL7 3DPSL7 3DQSL7 3DTSL7 3DUSL7 3DWSL7 3DXSL7 3EASL7 3EBSL7 3EDSL7 3EESL7 3EFSL7 3EGSL7 3EHSL7 3EJSL7 3ELSL7 3ENSL7 3EPSL7 3EQSL7 3ERSL7 3ESSL7 3ETSL7 3EUSL7 3EWSL7 3EXSL7 3EYSL7 3EZSL7 3FGSL7 3FHSL7 3FJSL7 3FLSL7 3FNSL7 3FPSL7 3FQSL7 3GZSL7 3HASL7 3HBSL7 3HFSL7 3HHSL7 3HJSL7 3HLSL7 3HNSL7 3HPSL7 3HRSL7 3HSSL7 3HTSL7 3HUSL7 3HWSL7 3HXSL7 3HYSL7 3HZSL7 3JASL7 3JBSL7 3JDSL7 3JESL7 3JFSL7 3JGSL7 3JHSL7 3JPSL7 3JQSL7 3JRSL7 3JTSL7 3JUSL7 3JXSL7 3JYSL7 3JZSL7 3LASL7 3LBSL7 3LDSL7 3LESL7 3LFSL7 3LGSL7 3LHSL7 3LJSL7 3LLSL7 3LNSL7 3LQSL7 3LTSL7 3LUSL7 3LWSL7 3LXSL7 3LYSL7 3LZSL7 3NASL7 3NBSL7 3NDSL7 3NESL7 3NFSL7 3NGSL7 3NHSL7 3NJSL7 3NLSL7 3NNSL7 3NQSL7 3NRSL7 3NSSL7 3NTSL7 3NUSL7 3NWSL7 3NXSL7 3NYSL7 3NZSL7 3PASL7 3PBSL7 3PDSL7 3PESL7 3PFSL7 3PGSL7 3PHSL7 3PJSL7 3PLSL7 3PNSL7 3PPSL7 3PQSL7 3PRSL7 3PSSL7 3PTSL7 3PUSL7 3PWSL7 3PXSL7 3PYSL7 3PZSL7 3QASL7 3QBSL7 3QDSL7 3QESL7 3QFSL7 3QGSL7 3QHSL7 3QJSL7 3QLSL7 3QNSL7 3QPSL7 3QQSL7 3QRSL7 3QTSL7 3QUSL7 3QWSL7 3QYSL7 3RASL7 3RBSL7 3RDSL7 3RESL7 3RFSL7 3RGSL7 3RHSL7 3RJSL7 3RLSL7 3RNSL7 3RPSL7 3RQSL7 3RRSL7 3RSSL7 3RTSL7 3RUSL7 3RWSL7 3RXSL7 3RYSL7 3RZSL7 3SASL7 3SBSL7 3SDSL7 3SESL7 3SFSL7 3SGSL7 3SLSL7 3SRSL7 3SYSL7 3TBSL7 3TZSL7 3XASL7 3XBSL7 3XDSL7 3YA

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

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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Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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