SO45 4 postcode sector in the SO45 district

SO45 4 is a sector of the SO45 district: every postcode that starts SO45 4. It has 151 postcodes in use, 3 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 SO45 4 sector, and which are new since 2020

Map of every postcode in the SO45 4 sector, by new since 2020 Of the 151 postcodes in the SO45 4 sector that ONS places, 3 are new since 2020 and 148 were in use before 2020. 2 postcodes lie beyond the edge and are listed under the map. Places named: Hythe and Dibden Purlieu. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A326 SO45 4AB: before 2020SO45 4AH: before 2020SO45 4AJ: before 2020SO45 4AL: before 2020SO45 4AN: before 2020SO45 4AP: before 2020SO45 4AS: before 2020SO45 4AT: before 2020SO45 4AX: before 2020SO45 4AY: before 2020SO45 4AZ: before 2020SO45 4BB: before 2020SO45 4BU: before 2020SO45 4BW: before 2020SO45 4BX: before 2020SO45 4BY: before 2020SO45 4BZ: before 2020SO45 4EY: before 2020SO45 4GZ: before 2020SO45 4HA: before 2020SO45 4HB: before 2020SO45 4HD: before 2020SO45 4HE: before 2020SO45 4HF: before 2020SO45 4HG: before 2020SO45 4HH: before 2020SO45 4HJ: before 2020SO45 4HN: before 2020SO45 4HP: before 2020SO45 4HQ: before 2020SO45 4HR: before 2020SO45 4HS: before 2020SO45 4HW: before 2020SO45 4HX: before 2020SO45 4HY: before 2020SO45 4HZ: before 2020SO45 4JA: before 2020SO45 4JB: before 2020SO45 4JD: before 2020SO45 4JE: before 2020SO45 4JF: before 2020SO45 4JG: before 2020SO45 4JH: before 2020SO45 4JJ: before 2020SO45 4JL: before 2020SO45 4JN: before 2020SO45 4JP: before 2020SO45 4JQ: before 2020SO45 4JR: before 2020SO45 4JS: before 2020SO45 4JT: before 2020SO45 4JU: before 2020SO45 4JW: before 2020SO45 4JX: before 2020SO45 4JY: before 2020SO45 4JZ: before 2020SO45 4LA: before 2020SO45 4LB: before 2020SO45 4LD: before 2020SO45 4LE: before 2020SO45 4LF: before 2020SO45 4LG: before 2020SO45 4LH: before 2020SO45 4LJ: before 2020SO45 4LL: before 2020SO45 4LN: before 2020SO45 4LP: before 2020SO45 4LQ: before 2020SO45 4LR: before 2020SO45 4LS: before 2020SO45 4LT: before 2020SO45 4LU: before 2020SO45 4LX: before 2020SO45 4LY: before 2020SO45 4LZ: before 2020SO45 4NA: before 2020SO45 4NB: before 2020SO45 4ND: before 2020SO45 4NE: before 2020SO45 4NF: before 2020SO45 4NG: before 2020SO45 4NH: before 2020SO45 4NJ: before 2020SO45 4NL: before 2020SO45 4NN: before 2020SO45 4NP: before 2020SO45 4NR: before 2020SO45 4NS: before 2020SO45 4NT: before 2020SO45 4NU: before 2020SO45 4NW: before 2020SO45 4NX: before 2020SO45 4NY: before 2020SO45 4NZ: before 2020SO45 4PA: before 2020SO45 4PB: before 2020SO45 4PD: before 2020SO45 4PE: before 2020SO45 4PF: before 2020SO45 4PG: before 2020SO45 4PH: before 2020SO45 4PJ: before 2020SO45 4PL: before 2020SO45 4PN: before 2020SO45 4PP: before 2020SO45 4PQ: before 2020SO45 4PR: before 2020SO45 4PS: before 2020SO45 4PU: before 2020SO45 4PW: before 2020SO45 4PX: before 2020SO45 4PY: before 2020SO45 4PZ: before 2020SO45 4QA: before 2020SO45 4QB: before 2020SO45 4QD: before 2020SO45 4QF: before 2020SO45 4QG: before 2020SO45 4QH: before 2020SO45 4QJ: before 2020SO45 4QL: before 2020SO45 4QN: before 2020SO45 4QP: before 2020SO45 4QS: before 2020SO45 4RA: before 2020SO45 4RB: before 2020SO45 4RD: before 2020SO45 4RE: before 2020SO45 4RF: before 2020SO45 4RG: before 2020SO45 4RH: before 2020SO45 4RJ: before 2020SO45 4RL: before 2020SO45 4RN: before 2020SO45 4RP: before 2020SO45 4RR: before 2020SO45 4RS: before 2020SO45 4RT: before 2020SO45 4RW: before 2020SO45 4RX: before 2020SO45 4SB: before 2020SO45 4SE: before 2020SO45 4ZB: before 2020SO45 4ZD: before 2020SO45 4ZF: before 2020SO45 4BA: new since 2020SO45 4BD: new since 2020SO45 4BE: new since 2020 Hythe and Dibden Purlieu Map of every postcode in the SO45 4 sector, by new since 2020 Of the 151 postcodes in the SO45 4 sector that ONS places, 3 are new since 2020 and 148 were in use before 2020. 2 postcodes lie beyond the edge and are listed under the map. Places named: Hythe and Dibden Purlieu. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Hythe and Dibden Purlieu
  • New since 2020: 3
  • In use before 2020: 148

Of the 151 postcodes in the SO45 4 sector that ONS places, 3 are new since 2020 and 148 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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 3 newest postcodes

SO45 4BDMarch 2026SO45 4BENovember 2025SO45 4BASeptember 2020

2 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

SO45 4HUSO45 4RQ

What do homes sell for in SO45 4?

Homes in SO45 4 sold for a typical £375,000 in the 12 months to August 2026, across 69 sales, up 1.4% on the 12 months before, HM Land Registry's figures show.

£375,000 typical price, the 12 months to August 2026
£370,000 12 months to August 2025
▲ up 1.4% on the 12 months before
  • Detached £469,750 32 sales
  • Semi-detached £338,975 24 sales
  • Terraced £301,000 8 sales
  • Flat or maisonette £152,500 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 SO45 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 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 SO45 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.

SO45 4ABSO45 4AHSO45 4AJSO45 4ALSO45 4ANSO45 4APSO45 4ASSO45 4ATSO45 4AXSO45 4AYSO45 4AZSO45 4BASO45 4BBSO45 4BDSO45 4BESO45 4BUSO45 4BWSO45 4BXSO45 4BYSO45 4BZSO45 4EYSO45 4GZSO45 4HASO45 4HBSO45 4HDSO45 4HESO45 4HFSO45 4HGSO45 4HHSO45 4HJSO45 4HNSO45 4HPSO45 4HQSO45 4HRSO45 4HSSO45 4HUSO45 4HWSO45 4HXSO45 4HYSO45 4HZSO45 4JASO45 4JBSO45 4JDSO45 4JESO45 4JFSO45 4JGSO45 4JHSO45 4JJSO45 4JLSO45 4JNSO45 4JPSO45 4JQSO45 4JRSO45 4JSSO45 4JTSO45 4JUSO45 4JWSO45 4JXSO45 4JYSO45 4JZSO45 4LASO45 4LBSO45 4LDSO45 4LESO45 4LFSO45 4LGSO45 4LHSO45 4LJSO45 4LLSO45 4LNSO45 4LPSO45 4LQSO45 4LRSO45 4LSSO45 4LTSO45 4LUSO45 4LXSO45 4LYSO45 4LZSO45 4NASO45 4NBSO45 4NDSO45 4NESO45 4NFSO45 4NGSO45 4NHSO45 4NJSO45 4NLSO45 4NNSO45 4NPSO45 4NRSO45 4NSSO45 4NTSO45 4NUSO45 4NWSO45 4NXSO45 4NYSO45 4NZSO45 4PASO45 4PBSO45 4PDSO45 4PESO45 4PFSO45 4PGSO45 4PHSO45 4PJSO45 4PLSO45 4PNSO45 4PPSO45 4PQSO45 4PRSO45 4PSSO45 4PTSO45 4PUSO45 4PWSO45 4PXSO45 4PYSO45 4PZSO45 4QASO45 4QBSO45 4QDSO45 4QFSO45 4QGSO45 4QHSO45 4QJSO45 4QLSO45 4QNSO45 4QPSO45 4QSSO45 4RASO45 4RBSO45 4RDSO45 4RESO45 4RFSO45 4RGSO45 4RHSO45 4RJSO45 4RLSO45 4RNSO45 4RPSO45 4RQSO45 4RRSO45 4RSSO45 4RTSO45 4RWSO45 4RXSO45 4SBSO45 4SESO45 4ZBSO45 4ZDSO45 4ZF

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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