SA3 4 postcode sector in the SA3 district

SA3 4 is a sector of the SA3 district: every postcode that starts SA3 4. It has 242 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the SA3 4 sector, and which are new since 2020

Map of every postcode in the SA3 4 sector, by new since 2020 Of the 242 postcodes in the SA3 4 sector that ONS places, 3 are new since 2020 and 239 were in use before 2020. Places named: Mumbles. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. SA3 4AA: before 2020SA3 4AB: before 2020SA3 4AD: before 2020SA3 4AE: before 2020SA3 4AF: before 2020SA3 4AH: before 2020SA3 4AJ: before 2020SA3 4AL: before 2020SA3 4AN: before 2020SA3 4AP: before 2020SA3 4AQ: before 2020SA3 4AR: before 2020SA3 4AS: before 2020SA3 4AT: before 2020SA3 4AU: before 2020SA3 4AW: before 2020SA3 4AX: before 2020SA3 4AY: before 2020SA3 4AZ: before 2020SA3 4BA: before 2020SA3 4BB: before 2020SA3 4BD: before 2020SA3 4BE: before 2020SA3 4BG: before 2020SA3 4BH: before 2020SA3 4BJ: before 2020SA3 4BL: before 2020SA3 4BN: before 2020SA3 4BP: before 2020SA3 4BQ: before 2020SA3 4BU: before 2020SA3 4BX: before 2020SA3 4BY: before 2020SA3 4BZ: before 2020SA3 4DA: before 2020SA3 4DB: before 2020SA3 4DD: before 2020SA3 4DE: before 2020SA3 4DF: before 2020SA3 4DH: before 2020SA3 4DL: before 2020SA3 4DN: before 2020SA3 4DP: before 2020SA3 4DR: before 2020SA3 4DS: before 2020SA3 4DT: before 2020SA3 4DU: before 2020SA3 4DX: before 2020SA3 4DY: before 2020SA3 4DZ: before 2020SA3 4EA: before 2020SA3 4EB: before 2020SA3 4ED: before 2020SA3 4EE: before 2020SA3 4EF: before 2020SA3 4EG: before 2020SA3 4EH: before 2020SA3 4EJ: before 2020SA3 4EL: before 2020SA3 4EN: before 2020SA3 4EP: before 2020SA3 4EQ: before 2020SA3 4ER: before 2020SA3 4ES: before 2020SA3 4EU: before 2020SA3 4EW: before 2020SA3 4EY: before 2020SA3 4HA: before 2020SA3 4HB: before 2020SA3 4HD: before 2020SA3 4HE: before 2020SA3 4HF: before 2020SA3 4HG: before 2020SA3 4HH: before 2020SA3 4HJ: before 2020SA3 4HL: before 2020SA3 4HN: before 2020SA3 4HP: before 2020SA3 4HQ: before 2020SA3 4HR: before 2020SA3 4HS: before 2020SA3 4HT: before 2020SA3 4HY: before 2020SA3 4HZ: before 2020SA3 4JA: before 2020SA3 4JB: before 2020SA3 4JD: before 2020SA3 4JE: before 2020SA3 4JF: before 2020SA3 4JG: before 2020SA3 4JN: before 2020SA3 4JP: before 2020SA3 4JQ: before 2020SA3 4JR: before 2020SA3 4JS: before 2020SA3 4JT: before 2020SA3 4JU: before 2020SA3 4JW: before 2020SA3 4JX: before 2020SA3 4JY: before 2020SA3 4JZ: before 2020SA3 4LA: before 2020SA3 4LB: before 2020SA3 4LD: before 2020SA3 4LE: before 2020SA3 4LF: before 2020SA3 4LG: before 2020SA3 4LH: before 2020SA3 4LJ: before 2020SA3 4LL: before 2020SA3 4LN: before 2020SA3 4LP: before 2020SA3 4LQ: before 2020SA3 4LR: before 2020SA3 4LS: before 2020SA3 4LT: before 2020SA3 4LU: before 2020SA3 4LW: before 2020SA3 4LX: before 2020SA3 4LY: before 2020SA3 4LZ: before 2020SA3 4NA: before 2020SA3 4ND: before 2020SA3 4NE: before 2020SA3 4NG: before 2020SA3 4NH: before 2020SA3 4NQ: before 2020SA3 4NS: before 2020SA3 4NT: before 2020SA3 4NU: before 2020SA3 4NX: before 2020SA3 4PA: before 2020SA3 4PB: before 2020SA3 4PD: before 2020SA3 4PE: before 2020SA3 4PF: before 2020SA3 4PG: before 2020SA3 4PH: before 2020SA3 4PJ: before 2020SA3 4PL: before 2020SA3 4PN: before 2020SA3 4PP: before 2020SA3 4PQ: before 2020SA3 4PS: before 2020SA3 4PW: before 2020SA3 4QA: before 2020SA3 4QB: before 2020SA3 4QD: before 2020SA3 4QE: before 2020SA3 4QF: before 2020SA3 4QG: before 2020SA3 4QH: before 2020SA3 4QJ: before 2020SA3 4QN: before 2020SA3 4QP: before 2020SA3 4QQ: before 2020SA3 4QR: before 2020SA3 4QS: before 2020SA3 4QU: before 2020SA3 4QW: before 2020SA3 4QX: before 2020SA3 4QY: before 2020SA3 4QZ: before 2020SA3 4RA: before 2020SA3 4RB: before 2020SA3 4RD: before 2020SA3 4RE: before 2020SA3 4RF: before 2020SA3 4RG: before 2020SA3 4RH: before 2020SA3 4RJ: before 2020SA3 4RL: before 2020SA3 4RN: before 2020SA3 4RP: before 2020SA3 4RQ: before 2020SA3 4RR: before 2020SA3 4RS: before 2020SA3 4RT: before 2020SA3 4RU: before 2020SA3 4RW: before 2020SA3 4RX: before 2020SA3 4RY: before 2020SA3 4RZ: before 2020SA3 4SA: before 2020SA3 4SB: before 2020SA3 4SD: before 2020SA3 4SE: before 2020SA3 4SF: before 2020SA3 4SJ: before 2020SA3 4SL: before 2020SA3 4SN: before 2020SA3 4SP: before 2020SA3 4SQ: before 2020SA3 4SR: before 2020SA3 4SS: before 2020SA3 4ST: before 2020SA3 4SU: before 2020SA3 4SW: before 2020SA3 4SX: before 2020SA3 4SY: before 2020SA3 4SZ: before 2020SA3 4TA: before 2020SA3 4TB: before 2020SA3 4TF: before 2020SA3 4TG: before 2020SA3 4TH: before 2020SA3 4TJ: before 2020SA3 4TL: before 2020SA3 4TN: before 2020SA3 4TP: before 2020SA3 4TQ: before 2020SA3 4TR: before 2020SA3 4TS: before 2020SA3 4TT: before 2020SA3 4TU: before 2020SA3 4TW: before 2020SA3 4TX: before 2020SA3 4TY: before 2020SA3 4TZ: before 2020SA3 4UA: before 2020SA3 4UB: before 2020SA3 4UD: before 2020SA3 4UE: before 2020SA3 4UF: before 2020SA3 4UG: before 2020SA3 4UH: before 2020SA3 4UJ: before 2020SA3 4UL: before 2020SA3 4UN: before 2020SA3 4UP: before 2020SA3 4UQ: before 2020SA3 4UR: before 2020SA3 4US: before 2020SA3 4UT: before 2020SA3 4UU: before 2020SA3 4UW: before 2020SA3 4UX: before 2020SA3 4UY: before 2020SA3 4UZ: before 2020SA3 4BS: new since 2020SA3 4BW: new since 2020SA3 4DG: new since 2020 Mumbles Map of every postcode in the SA3 4 sector, by new since 2020 Of the 242 postcodes in the SA3 4 sector that ONS places, 3 are new since 2020 and 239 were in use before 2020. Places named: Mumbles. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A4067 Mumbles
  • New since 2020: 3
  • In use before 2020: 239

Of the 242 postcodes in the SA3 4 sector that ONS places, 3 are new since 2020 and 239 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. 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; 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

SA3 4BWJanuary 2023SA3 4DGSeptember 2022SA3 4BSApril 2020

What do homes sell for in SA3 4?

Homes in SA3 4 sold for a typical £350,000 in the 12 months to August 2026, across 101 sales, down 10.3% on the 12 months before, HM Land Registry's figures show.

£350,000 typical price, the 12 months to August 2026
£390,000 12 months to August 2025
▼ down 10.3% on the 12 months before
  • Detached £554,230 31 sales
  • Semi-detached £340,750 24 sales
  • Terraced £290,000 32 sales
  • Flat or maisonette £296,250 14 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 SA3 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 SA3 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.

SA3 4AASA3 4ABSA3 4ADSA3 4AESA3 4AFSA3 4AHSA3 4AJSA3 4ALSA3 4ANSA3 4APSA3 4AQSA3 4ARSA3 4ASSA3 4ATSA3 4AUSA3 4AWSA3 4AXSA3 4AYSA3 4AZSA3 4BASA3 4BBSA3 4BDSA3 4BESA3 4BGSA3 4BHSA3 4BJSA3 4BLSA3 4BNSA3 4BPSA3 4BQSA3 4BSSA3 4BUSA3 4BWSA3 4BXSA3 4BYSA3 4BZSA3 4DASA3 4DBSA3 4DDSA3 4DESA3 4DFSA3 4DGSA3 4DHSA3 4DLSA3 4DNSA3 4DPSA3 4DRSA3 4DSSA3 4DTSA3 4DUSA3 4DXSA3 4DYSA3 4DZSA3 4EASA3 4EBSA3 4EDSA3 4EESA3 4EFSA3 4EGSA3 4EHSA3 4EJSA3 4ELSA3 4ENSA3 4EPSA3 4EQSA3 4ERSA3 4ESSA3 4EUSA3 4EWSA3 4EYSA3 4HASA3 4HBSA3 4HDSA3 4HESA3 4HFSA3 4HGSA3 4HHSA3 4HJSA3 4HLSA3 4HNSA3 4HPSA3 4HQSA3 4HRSA3 4HSSA3 4HTSA3 4HYSA3 4HZSA3 4JASA3 4JBSA3 4JDSA3 4JESA3 4JFSA3 4JGSA3 4JNSA3 4JPSA3 4JQSA3 4JRSA3 4JSSA3 4JTSA3 4JUSA3 4JWSA3 4JXSA3 4JYSA3 4JZSA3 4LASA3 4LBSA3 4LDSA3 4LESA3 4LFSA3 4LGSA3 4LHSA3 4LJSA3 4LLSA3 4LNSA3 4LPSA3 4LQSA3 4LRSA3 4LSSA3 4LTSA3 4LUSA3 4LWSA3 4LXSA3 4LYSA3 4LZSA3 4NASA3 4NDSA3 4NESA3 4NGSA3 4NHSA3 4NQSA3 4NSSA3 4NTSA3 4NUSA3 4NXSA3 4PASA3 4PBSA3 4PDSA3 4PESA3 4PFSA3 4PGSA3 4PHSA3 4PJSA3 4PLSA3 4PNSA3 4PPSA3 4PQSA3 4PSSA3 4PWSA3 4QASA3 4QBSA3 4QDSA3 4QESA3 4QFSA3 4QGSA3 4QHSA3 4QJSA3 4QNSA3 4QPSA3 4QQSA3 4QRSA3 4QSSA3 4QUSA3 4QWSA3 4QXSA3 4QYSA3 4QZSA3 4RASA3 4RBSA3 4RDSA3 4RESA3 4RFSA3 4RGSA3 4RHSA3 4RJSA3 4RLSA3 4RNSA3 4RPSA3 4RQSA3 4RRSA3 4RSSA3 4RTSA3 4RUSA3 4RWSA3 4RXSA3 4RYSA3 4RZSA3 4SASA3 4SBSA3 4SDSA3 4SESA3 4SFSA3 4SJSA3 4SLSA3 4SNSA3 4SPSA3 4SQSA3 4SRSA3 4SSSA3 4STSA3 4SUSA3 4SWSA3 4SXSA3 4SYSA3 4SZSA3 4TASA3 4TBSA3 4TFSA3 4TGSA3 4THSA3 4TJSA3 4TLSA3 4TNSA3 4TPSA3 4TQSA3 4TRSA3 4TSSA3 4TTSA3 4TUSA3 4TWSA3 4TXSA3 4TYSA3 4TZSA3 4UASA3 4UBSA3 4UDSA3 4UESA3 4UFSA3 4UGSA3 4UHSA3 4UJSA3 4ULSA3 4UNSA3 4UPSA3 4UQSA3 4URSA3 4USSA3 4UTSA3 4UUSA3 4UWSA3 4UXSA3 4UYSA3 4UZ

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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