SA15 4 postcode sector in the SA15 district

SA15 4 is a sector of the SA15 district: every postcode that starts SA15 4. It has 157 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 SA15 4 sector, and which are new since 2020

Map of every postcode in the SA15 4 sector, by new since 2020 Of the 157 postcodes in the SA15 4 sector that ONS places, 3 are new since 2020 and 154 were in use before 2020. Places named: Llanelli. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. SA15 4AA: before 2020SA15 4AB: before 2020SA15 4AD: before 2020SA15 4AE: before 2020SA15 4AF: before 2020SA15 4AG: before 2020SA15 4AH: before 2020SA15 4AJ: before 2020SA15 4AL: before 2020SA15 4AN: before 2020SA15 4AR: before 2020SA15 4AS: before 2020SA15 4AT: before 2020SA15 4AU: before 2020SA15 4AW: before 2020SA15 4AY: before 2020SA15 4BA: before 2020SA15 4BB: before 2020SA15 4BD: before 2020SA15 4BG: before 2020SA15 4BH: before 2020SA15 4BL: before 2020SA15 4BN: before 2020SA15 4BQ: before 2020SA15 4BR: before 2020SA15 4BS: before 2020SA15 4BT: before 2020SA15 4BU: before 2020SA15 4BW: before 2020SA15 4BX: before 2020SA15 4BY: before 2020SA15 4BZ: before 2020SA15 4DB: before 2020SA15 4DD: before 2020SA15 4DF: before 2020SA15 4DG: before 2020SA15 4DH: before 2020SA15 4DJ: before 2020SA15 4DL: before 2020SA15 4DN: before 2020SA15 4DP: before 2020SA15 4DQ: before 2020SA15 4DR: before 2020SA15 4DS: before 2020SA15 4DT: before 2020SA15 4DU: before 2020SA15 4DW: before 2020SA15 4DX: before 2020SA15 4DY: before 2020SA15 4DZ: before 2020SA15 4EE: before 2020SA15 4EF: before 2020SA15 4EH: before 2020SA15 4EJ: before 2020SA15 4EN: before 2020SA15 4EP: before 2020SA15 4ER: before 2020SA15 4ES: before 2020SA15 4ET: before 2020SA15 4EU: before 2020SA15 4EW: before 2020SA15 4EY: before 2020SA15 4HA: before 2020SA15 4HB: before 2020SA15 4HD: before 2020SA15 4HE: before 2020SA15 4HF: before 2020SA15 4HG: before 2020SA15 4HH: before 2020SA15 4HL: before 2020SA15 4HN: before 2020SA15 4HP: before 2020SA15 4HR: before 2020SA15 4HT: before 2020SA15 4HU: before 2020SA15 4HW: before 2020SA15 4LA: before 2020SA15 4LB: before 2020SA15 4LD: before 2020SA15 4LE: before 2020SA15 4LF: before 2020SA15 4LG: before 2020SA15 4LH: before 2020SA15 4LL: before 2020SA15 4LN: before 2020SA15 4LP: before 2020SA15 4LR: before 2020SA15 4LS: before 2020SA15 4LT: before 2020SA15 4LW: before 2020SA15 4LY: before 2020SA15 4NB: before 2020SA15 4ND: before 2020SA15 4NE: before 2020SA15 4NF: before 2020SA15 4NG: before 2020SA15 4NH: before 2020SA15 4NN: before 2020SA15 4NP: before 2020SA15 4NQ: before 2020SA15 4NR: before 2020SA15 4NS: before 2020SA15 4NU: before 2020SA15 4NY: before 2020SA15 4PA: before 2020SA15 4PB: before 2020SA15 4PD: before 2020SA15 4PE: before 2020SA15 4PF: before 2020SA15 4PG: before 2020SA15 4PH: before 2020SA15 4PL: before 2020SA15 4PN: before 2020SA15 4PP: before 2020SA15 4PR: before 2020SA15 4PS: before 2020SA15 4PT: before 2020SA15 4PU: before 2020SA15 4PW: before 2020SA15 4PY: before 2020SA15 4RA: before 2020SA15 4RB: before 2020SA15 4RD: before 2020SA15 4RE: before 2020SA15 4RF: before 2020SA15 4RG: before 2020SA15 4RH: before 2020SA15 4RL: before 2020SA15 4RN: before 2020SA15 4RP: before 2020SA15 4RQ: before 2020SA15 4RR: before 2020SA15 4RS: before 2020SA15 4RT: before 2020SA15 4RU: before 2020SA15 4RW: before 2020SA15 4RY: before 2020SA15 4SA: before 2020SA15 4SB: before 2020SA15 4SE: before 2020SA15 4SG: before 2020SA15 4SH: before 2020SA15 4SJ: before 2020SA15 4SL: before 2020SA15 4SN: before 2020SA15 4SR: before 2020SA15 4SS: before 2020SA15 4AX: new since 2020SA15 4EZ: new since 2020SA15 4EQ: new since 2020 Llanelli Map of every postcode in the SA15 4 sector, by new since 2020 Of the 157 postcodes in the SA15 4 sector that ONS places, 3 are new since 2020 and 154 were in use before 2020. Places named: Llanelli. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Llanelli
  • New since 2020: 3
  • In use before 2020: 154

Of the 157 postcodes in the SA15 4 sector that ONS places, 3 are new since 2020 and 154 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

SA15 4EZJune 2024SA15 4AXSeptember 2023SA15 4EQApril 2023

What do homes sell for in SA15 4?

Homes in SA15 4 sold for a typical £188,000 in the 12 months to August 2026, across 53 sales, up 4.4% on the 12 months before, HM Land Registry's figures show.

£188,000 typical price, the 12 months to August 2026
£180,000 12 months to August 2025
▲ up 4.4% on the 12 months before
  • Detached £345,000 16 sales
  • Semi-detached £189,500 20 sales
  • Terraced £150,000 17 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 SA15 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 SA15 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.

SA15 4AASA15 4ABSA15 4ADSA15 4AESA15 4AFSA15 4AGSA15 4AHSA15 4AJSA15 4ALSA15 4ANSA15 4APSA15 4ARSA15 4ASSA15 4ATSA15 4AUSA15 4AWSA15 4AXSA15 4AYSA15 4BASA15 4BBSA15 4BDSA15 4BESA15 4BGSA15 4BHSA15 4BLSA15 4BNSA15 4BQSA15 4BRSA15 4BSSA15 4BTSA15 4BUSA15 4BWSA15 4BXSA15 4BYSA15 4BZSA15 4DASA15 4DBSA15 4DDSA15 4DESA15 4DFSA15 4DGSA15 4DHSA15 4DJSA15 4DLSA15 4DNSA15 4DPSA15 4DQSA15 4DRSA15 4DSSA15 4DTSA15 4DUSA15 4DWSA15 4DXSA15 4DYSA15 4DZSA15 4EASA15 4EBSA15 4EESA15 4EFSA15 4EHSA15 4EJSA15 4ENSA15 4EPSA15 4EQSA15 4ERSA15 4ESSA15 4ETSA15 4EUSA15 4EWSA15 4EYSA15 4EZSA15 4HASA15 4HBSA15 4HDSA15 4HESA15 4HFSA15 4HGSA15 4HHSA15 4HLSA15 4HNSA15 4HPSA15 4HRSA15 4HTSA15 4HUSA15 4HWSA15 4LASA15 4LBSA15 4LDSA15 4LESA15 4LFSA15 4LGSA15 4LHSA15 4LLSA15 4LNSA15 4LPSA15 4LRSA15 4LSSA15 4LTSA15 4LWSA15 4LYSA15 4NBSA15 4NDSA15 4NESA15 4NFSA15 4NGSA15 4NHSA15 4NLSA15 4NNSA15 4NPSA15 4NQSA15 4NRSA15 4NSSA15 4NUSA15 4NYSA15 4PASA15 4PBSA15 4PDSA15 4PESA15 4PFSA15 4PGSA15 4PHSA15 4PLSA15 4PNSA15 4PPSA15 4PRSA15 4PSSA15 4PTSA15 4PUSA15 4PWSA15 4PYSA15 4RASA15 4RBSA15 4RDSA15 4RESA15 4RFSA15 4RGSA15 4RHSA15 4RLSA15 4RNSA15 4RPSA15 4RQSA15 4RRSA15 4RSSA15 4RTSA15 4RUSA15 4RWSA15 4RYSA15 4SASA15 4SBSA15 4SESA15 4SGSA15 4SHSA15 4SJSA15 4SLSA15 4SNSA15 4SRSA15 4SS

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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