TS21 3 postcode sector in the TS21 district

TS21 3 is a sector of the TS21 district: every postcode that starts TS21 3. It has 150 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 TS21 3 sector, and which are new since 2020

Map of every postcode in the TS21 3 sector, by new since 2020 Of the 150 postcodes in the TS21 3 sector that ONS places, 5 are new since 2020 and 145 were in use before 2020. Places named: Sedgefield, Wynyard. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A177 TS21 3AA: before 2020TS21 3AB: before 2020TS21 3AD: before 2020TS21 3AE: before 2020TS21 3AF: before 2020TS21 3AG: before 2020TS21 3AH: before 2020TS21 3AJ: before 2020TS21 3AL: before 2020TS21 3AN: before 2020TS21 3AP: before 2020TS21 3AQ: before 2020TS21 3AR: before 2020TS21 3AT: before 2020TS21 3AU: before 2020TS21 3AX: before 2020TS21 3AY: before 2020TS21 3AZ: before 2020TS21 3BD: before 2020TS21 3BE: before 2020TS21 3BF: before 2020TS21 3BG: before 2020TS21 3BH: before 2020TS21 3BJ: before 2020TS21 3BL: before 2020TS21 3BN: before 2020TS21 3BP: before 2020TS21 3BQ: before 2020TS21 3BS: before 2020TS21 3BT: before 2020TS21 3BU: before 2020TS21 3BX: before 2020TS21 3BY: before 2020TS21 3BZ: before 2020TS21 3DA: before 2020TS21 3DB: before 2020TS21 3DD: before 2020TS21 3DE: before 2020TS21 3DG: before 2020TS21 3DH: before 2020TS21 3DJ: before 2020TS21 3DL: before 2020TS21 3DQ: before 2020TS21 3DS: before 2020TS21 3DT: before 2020TS21 3DU: before 2020TS21 3DW: before 2020TS21 3DY: before 2020TS21 3DZ: before 2020TS21 3ED: before 2020TS21 3EE: before 2020TS21 3EF: before 2020TS21 3EG: before 2020TS21 3EL: before 2020TS21 3EN: before 2020TS21 3EP: before 2020TS21 3EQ: before 2020TS21 3ER: before 2020TS21 3ET: before 2020TS21 3EU: before 2020TS21 3EW: before 2020TS21 3EX: before 2020TS21 3FB: before 2020TS21 3FD: before 2020TS21 3FE: before 2020TS21 3FF: before 2020TS21 3FG: before 2020TS21 3FH: before 2020TS21 3FJ: before 2020TS21 3FL: before 2020TS21 3HA: before 2020TS21 3HD: before 2020TS21 3HE: before 2020TS21 3HF: before 2020TS21 3HG: before 2020TS21 3HH: before 2020TS21 3HL: before 2020TS21 3HN: before 2020TS21 3HP: before 2020TS21 3HQ: before 2020TS21 3HR: before 2020TS21 3HS: before 2020TS21 3HT: before 2020TS21 3HW: before 2020TS21 3HX: before 2020TS21 3HY: before 2020TS21 3HZ: before 2020TS21 3JA: before 2020TS21 3JB: before 2020TS21 3JE: before 2020TS21 3JF: before 2020TS21 3JG: before 2020TS21 3JH: before 2020TS21 3JJ: before 2020TS21 3JL: before 2020TS21 3JN: before 2020TS21 3JP: before 2020TS21 3JQ: before 2020TS21 3JT: before 2020TS21 3JU: before 2020TS21 3JX: before 2020TS21 3JY: before 2020TS21 3LA: before 2020TS21 3LB: before 2020TS21 3LD: before 2020TS21 3LE: before 2020TS21 3LF: before 2020TS21 3LH: before 2020TS21 3LJ: before 2020TS21 3LL: before 2020TS21 3LN: before 2020TS21 3LQ: before 2020TS21 3LR: before 2020TS21 3LS: before 2020TS21 3LT: before 2020TS21 3LU: before 2020TS21 3LX: before 2020TS21 3LY: before 2020TS21 3LZ: before 2020TS21 3NA: before 2020TS21 3NB: before 2020TS21 3NH: before 2020TS21 3NJ: before 2020TS21 3NL: before 2020TS21 3NN: before 2020TS21 3NP: before 2020TS21 3NR: before 2020TS21 3NS: before 2020TS21 3NT: before 2020TS21 3NU: before 2020TS21 3NX: before 2020TS21 3JD: before 2020TS21 3FA: new since 2020TS21 3FN: new since 2020TS21 3FP: new since 2020TS21 3FQ: new since 2020TS21 3FR: new since 2020 SedgefieldWynyard Map of every postcode in the TS21 3 sector, by new since 2020 Of the 150 postcodes in the TS21 3 sector that ONS places, 5 are new since 2020 and 145 were in use before 2020. Places named: Sedgefield, Wynyard. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. SedgefieldWynyard
  • New since 2020: 5
  • In use before 2020: 145

Of the 150 postcodes in the TS21 3 sector that ONS places, 5 are new since 2020 and 145 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 5 newest postcodes

TS21 3FROctober 2025TS21 3FNFebruary 2021TS21 3FQFebruary 2021TS21 3FASeptember 2020TS21 3FPJune 2020

What do homes sell for in TS21 3?

Homes in TS21 3 sold for a typical £203,050 in the 12 months to August 2026, across 60 sales, up 11% on the 12 months before, HM Land Registry's figures show.

£203,050 typical price, the 12 months to August 2026
£183,000 12 months to August 2025
▲ up 11% on the 12 months before
  • Detached £340,000 19 sales
  • Semi-detached £180,000 17 sales
  • Terraced £167,500 16 sales
  • Flat or maisonette £72,725 8 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 TS21 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 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 TS21 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.

TS21 3AATS21 3ABTS21 3ADTS21 3AETS21 3AFTS21 3AGTS21 3AHTS21 3AJTS21 3ALTS21 3ANTS21 3APTS21 3AQTS21 3ARTS21 3ASTS21 3ATTS21 3AUTS21 3AWTS21 3AXTS21 3AYTS21 3AZTS21 3BATS21 3BBTS21 3BDTS21 3BETS21 3BFTS21 3BGTS21 3BHTS21 3BJTS21 3BLTS21 3BNTS21 3BPTS21 3BQTS21 3BSTS21 3BTTS21 3BUTS21 3BWTS21 3BXTS21 3BYTS21 3BZTS21 3DATS21 3DBTS21 3DDTS21 3DETS21 3DFTS21 3DGTS21 3DHTS21 3DJTS21 3DLTS21 3DNTS21 3DQTS21 3DSTS21 3DTTS21 3DUTS21 3DWTS21 3DYTS21 3DZTS21 3EDTS21 3EETS21 3EFTS21 3EGTS21 3EHTS21 3ELTS21 3ENTS21 3EPTS21 3EQTS21 3ERTS21 3ETTS21 3EUTS21 3EWTS21 3EXTS21 3FATS21 3FBTS21 3FDTS21 3FETS21 3FFTS21 3FGTS21 3FHTS21 3FJTS21 3FLTS21 3FNTS21 3FPTS21 3FQTS21 3FRTS21 3HATS21 3HDTS21 3HETS21 3HFTS21 3HGTS21 3HHTS21 3HLTS21 3HNTS21 3HPTS21 3HQTS21 3HRTS21 3HSTS21 3HTTS21 3HWTS21 3HXTS21 3HYTS21 3HZTS21 3JATS21 3JBTS21 3JDTS21 3JETS21 3JFTS21 3JGTS21 3JHTS21 3JJTS21 3JLTS21 3JNTS21 3JPTS21 3JQTS21 3JRTS21 3JSTS21 3JTTS21 3JUTS21 3JWTS21 3JXTS21 3JYTS21 3JZTS21 3LATS21 3LBTS21 3LDTS21 3LETS21 3LFTS21 3LHTS21 3LJTS21 3LLTS21 3LNTS21 3LQTS21 3LRTS21 3LSTS21 3LTTS21 3LUTS21 3LXTS21 3LYTS21 3LZTS21 3NATS21 3NBTS21 3NHTS21 3NJTS21 3NLTS21 3NNTS21 3NPTS21 3NRTS21 3NSTS21 3NTTS21 3NUTS21 3NWTS21 3NX

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.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.