SL4 4 postcode sector in the SL4 district

SL4 4 is a sector of the SL4 district: every postcode that starts SL4 4. It has 294 postcodes in use, 6 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 4 sector, by gigabit broadband

No home or business can get gigabit: 25
Some can get gigabit: 51
Every home and business can get gigabit: 212
Ofcom gives no figure: 6

Of the 294 postcodes in the SL4 4 sector that ONS places, 25 have no home or business that can get gigabit, 51 have some that can, 212 can all get it and 6 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

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

SL4 4AA SL4 4AN SL4 4AP SL4 4AQ SL4 4AU SL4 4AW SL4 4AX SL4 4AY SL4 4BE SL4 4BH SL4 4BQ SL4 4BX

What do homes sell for in SL4 4?

Homes in SL4 4 sold for a typical £518,500 in the 12 months to September 2026, across 78 sales, HM Land Registry's figures show. The 12 months before gave £482,500 from 107 sales: not a change larger than chance would explain, given which homes happened to sell.

£518,500 typical price, the 12 months to September 2026

£482,500 12 months to September 2025

Detached £852,000 25 sales
Semi-detached £610,000 14 sales
Terraced £450,000 27 sales
Flat or maisonette £285,000 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 SL4 4. 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 SL4 4

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 4AA SL4 4AB SL4 4AD SL4 4AE SL4 4AF SL4 4AG SL4 4AH SL4 4AJ SL4 4AL SL4 4AN SL4 4AP SL4 4AQ SL4 4AR SL4 4AS SL4 4AT SL4 4AU SL4 4AW SL4 4AX SL4 4AY SL4 4AZ SL4 4BA SL4 4BD SL4 4BE SL4 4BF SL4 4BG SL4 4BH SL4 4BJ SL4 4BL SL4 4BP SL4 4BQ SL4 4BS SL4 4BT SL4 4BU SL4 4BW SL4 4BX SL4 4BY SL4 4BZ SL4 4DA SL4 4DB SL4 4DD SL4 4DE SL4 4DH SL4 4DJ SL4 4DN SL4 4DP SL4 4DQ SL4 4DR SL4 4DS SL4 4DT SL4 4DU SL4 4DW SL4 4DX SL4 4DY SL4 4DZ SL4 4EA SL4 4EB SL4 4ED SL4 4EF SL4 4EG SL4 4EH SL4 4EJ SL4 4EL SL4 4EN SL4 4EP SL4 4ER SL4 4ES SL4 4ET SL4 4EU SL4 4EW SL4 4EX SL4 4EY SL4 4FB SL4 4FG SL4 4FN SL4 4GE SL4 4GY SL4 4HA SL4 4HB SL4 4HD SL4 4HE SL4 4HF SL4 4HG SL4 4HH SL4 4HJ SL4 4HL SL4 4HQ SL4 4HR SL4 4HS SL4 4HT SL4 4HU SL4 4HX SL4 4HY SL4 4HZ SL4 4JA SL4 4JB SL4 4JD SL4 4JE SL4 4JF SL4 4JG SL4 4JH SL4 4JJ SL4 4JL SL4 4JN SL4 4JP SL4 4JQ SL4 4JR SL4 4JS SL4 4JT SL4 4JU SL4 4JW SL4 4JX SL4 4JY SL4 4JZ SL4 4LA SL4 4LB SL4 4LD SL4 4LE SL4 4LF SL4 4LG SL4 4LH SL4 4LJ SL4 4LL SL4 4LN SL4 4LP SL4 4LR SL4 4LS SL4 4LW SL4 4LY SL4 4LZ SL4 4NA SL4 4NB SL4 4ND SL4 4NE SL4 4NF SL4 4NG SL4 4NH SL4 4NJ SL4 4NL SL4 4NN SL4 4NP SL4 4NQ SL4 4NR SL4 4NS SL4 4NT SL4 4NW SL4 4NY SL4 4NZ SL4 4PA SL4 4PB SL4 4PD SL4 4PE SL4 4PF SL4 4PG SL4 4PH SL4 4PJ SL4 4PL SL4 4PN SL4 4PP SL4 4PQ SL4 4PR SL4 4PS SL4 4PT SL4 4PU SL4 4PW SL4 4PX SL4 4PY SL4 4PZ SL4 4QA SL4 4QD SL4 4QE SL4 4QF SL4 4QG SL4 4QH SL4 4QJ SL4 4QL SL4 4QN SL4 4QP SL4 4QQ SL4 4QR SL4 4QS SL4 4QT SL4 4QU SL4 4QW SL4 4QX SL4 4QY SL4 4QZ SL4 4RA SL4 4RB SL4 4RE SL4 4RH SL4 4RJ SL4 4RL SL4 4RN SL4 4RP SL4 4RR SL4 4RS SL4 4RU SL4 4RW SL4 4RX SL4 4RZ SL4 4SA SL4 4SB SL4 4SD SL4 4SE SL4 4SF SL4 4SG SL4 4SH SL4 4SJ SL4 4SL SL4 4SN SL4 4SP SL4 4SQ SL4 4SR SL4 4SS SL4 4ST SL4 4SU SL4 4SW SL4 4SX SL4 4SY SL4 4SZ SL4 4TA SL4 4TB SL4 4TE SL4 4TF SL4 4TG SL4 4TH SL4 4TJ SL4 4TL SL4 4TN SL4 4TP SL4 4TR SL4 4TS SL4 4TT SL4 4TU SL4 4TW SL4 4TX SL4 4TY SL4 4TZ SL4 4UA SL4 4UB SL4 4UD SL4 4UE SL4 4UF SL4 4UG SL4 4UH SL4 4UL SL4 4UN SL4 4UP SL4 4UQ SL4 4UR SL4 4US SL4 4UT SL4 4UW SL4 4WA SL4 4XA SL4 4XD SL4 4XE SL4 4XF SL4 4XG SL4 4XH SL4 4XJ SL4 4XL SL4 4XN SL4 4XP SL4 4XQ SL4 4XR SL4 4XS SL4 4XT SL4 4XU SL4 4XW SL4 4XX SL4 4XY SL4 4XZ SL4 4YA SL4 4YB SL4 4YD SL4 4YE SL4 4YF SL4 4YG SL4 4YH SL4 4YJ SL4 4YL SL4 4YN SL4 4YP SL4 4YQ SL4 4YR SL4 4YS SL4 4YT SL4 4YU SL4 4YW SL4 4YX SL4 4YY SL4 4YZ SL4 4ZQ

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.

Other sectors in SL4

SL4 1 sector SL4 2 sector SL4 3 sector SL4 5 sector SL4 6 sector SL4 9 sector All of SL4 SL postcode area

Check a postcode

Where the facts on this page come from

Office for National Statistics: ONS Postcode Directory
Ofcom Connected Nations
HM Land Registry Price Paid Data

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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