DH3 4 postcode sector in the DH3 district

DH3 4 is a sector of the DH3 district: every postcode that starts DH3 4. It has 179 postcodes in use, 5 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 DH3 4 sector, by flood risk

Map of every postcode in the DH3 4 sector, by flood risk Of the 179 postcodes in the DH3 4 sector that ONS places, 3 have a home or business at high risk, 1 are at medium risk at worst, 2 are at low risk at worst and 173 are not on the Environment Agency's at-risk list. Places named: Chester-le-Street, Fence Houses, Great Lumley, Bournmoor. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A1(M)A183A167A182 DH3 4AA: not on the flood risk listDH3 4AB: not on the flood risk listDH3 4AD: not on the flood risk listDH3 4AE: not on the flood risk listDH3 4AF: not on the flood risk listDH3 4AG: not on the flood risk listDH3 4AH: not on the flood risk listDH3 4AJ: not on the flood risk listDH3 4AL: not on the flood risk listDH3 4AN: not on the flood risk listDH3 4AP: not on the flood risk listDH3 4AQ: not on the flood risk listDH3 4AR: not on the flood risk listDH3 4AS: not on the flood risk listDH3 4AT: not on the flood risk listDH3 4AW: not on the flood risk listDH3 4AX: not on the flood risk listDH3 4AY: not on the flood risk listDH3 4AZ: not on the flood risk listDH3 4BA: not on the flood risk listDH3 4BB: not on the flood risk listDH3 4BD: not on the flood risk listDH3 4BE: not on the flood risk listDH3 4BF: not on the flood risk listDH3 4BG: not on the flood risk listDH3 4BH: not on the flood risk listDH3 4BJ: not on the flood risk listDH3 4BL: not on the flood risk listDH3 4BN: not on the flood risk listDH3 4BP: not on the flood risk listDH3 4BQ: not on the flood risk listDH3 4BW: not on the flood risk listDH3 4DA: not on the flood risk listDH3 4DB: not on the flood risk listDH3 4DE: not on the flood risk listDH3 4DF: not on the flood risk listDH3 4DG: not on the flood risk listDH3 4DH: not on the flood risk listDH3 4DJ: not on the flood risk listDH3 4DL: not on the flood risk listDH3 4DP: not on the flood risk listDH3 4DQ: not on the flood risk listDH3 4DR: not on the flood risk listDH3 4DS: not on the flood risk listDH3 4DT: not on the flood risk listDH3 4DU: not on the flood risk listDH3 4DW: not on the flood risk listDH3 4DX: not on the flood risk listDH3 4DY: not on the flood risk listDH3 4DZ: not on the flood risk listDH3 4EA: not on the flood risk listDH3 4EB: not on the flood risk listDH3 4ED: not on the flood risk listDH3 4EE: not on the flood risk listDH3 4EH: not on the flood risk listDH3 4EJ: not on the flood risk listDH3 4EP: not on the flood risk listDH3 4EQ: not on the flood risk listDH3 4ER: not on the flood risk listDH3 4ES: not on the flood risk listDH3 4EU: not on the flood risk listDH3 4EW: not on the flood risk listDH3 4EY: not on the flood risk listDH3 4FD: not on the flood risk listDH3 4FE: not on the flood risk listDH3 4FG: not on the flood risk listDH3 4FH: not on the flood risk listDH3 4FJ: not on the flood risk listDH3 4GW: not on the flood risk listDH3 4HA: not on the flood risk listDH3 4HB: not on the flood risk listDH3 4HD: not on the flood risk listDH3 4HE: not on the flood risk listDH3 4HF: not on the flood risk listDH3 4HH: not on the flood risk listDH3 4HL: not on the flood risk listDH3 4HN: not on the flood risk listDH3 4HP: not on the flood risk listDH3 4HR: not on the flood risk listDH3 4HS: not on the flood risk listDH3 4HT: not on the flood risk listDH3 4HU: not on the flood risk listDH3 4HW: not on the flood risk listDH3 4HX: not on the flood risk listDH3 4HY: not on the flood risk listDH3 4HZ: not on the flood risk listDH3 4JB: not on the flood risk listDH3 4JD: not on the flood risk listDH3 4JE: not on the flood risk listDH3 4JF: not on the flood risk listDH3 4JG: not on the flood risk listDH3 4JH: not on the flood risk listDH3 4JJ: not on the flood risk listDH3 4JL: not on the flood risk listDH3 4JN: not on the flood risk listDH3 4JP: not on the flood risk listDH3 4JS: not on the flood risk listDH3 4JT: not on the flood risk listDH3 4JU: not on the flood risk listDH3 4JW: not on the flood risk listDH3 4JX: not on the flood risk listDH3 4JY: not on the flood risk listDH3 4LA: not on the flood risk listDH3 4LB: not on the flood risk listDH3 4LD: not on the flood risk listDH3 4LE: not on the flood risk listDH3 4LF: not on the flood risk listDH3 4LG: not on the flood risk listDH3 4LH: not on the flood risk listDH3 4LJ: not on the flood risk listDH3 4LL: not on the flood risk listDH3 4LN: not on the flood risk listDH3 4LP: not on the flood risk listDH3 4LQ: not on the flood risk listDH3 4LR: not on the flood risk listDH3 4LT: not on the flood risk listDH3 4LU: not on the flood risk listDH3 4LW: not on the flood risk listDH3 4LX: not on the flood risk listDH3 4LY: not on the flood risk listDH3 4LZ: not on the flood risk listDH3 4NB: not on the flood risk listDH3 4ND: not on the flood risk listDH3 4NE: not on the flood risk listDH3 4NF: not on the flood risk listDH3 4NG: not on the flood risk listDH3 4NH: not on the flood risk listDH3 4NJ: not on the flood risk listDH3 4NL: not on the flood risk listDH3 4NQ: not on the flood risk listDH3 4NS: not on the flood risk listDH3 4NU: not on the flood risk listDH3 4NX: not on the flood risk listDH3 4PA: not on the flood risk listDH3 4PB: not on the flood risk listDH3 4PD: not on the flood risk listDH3 4PE: not on the flood risk listDH3 4PF: not on the flood risk listDH3 4PG: not on the flood risk listDH3 4PH: not on the flood risk listDH3 4PJ: not on the flood risk listDH3 4PL: not on the flood risk listDH3 4PQ: not on the flood risk listDH3 4PT: not on the flood risk listDH3 4PU: not on the flood risk listDH3 4PY: not on the flood risk listDH3 4QB: not on the flood risk listDH3 4QH: not on the flood risk listDH3 4QJ: not on the flood risk listDH3 4QL: not on the flood risk listDH3 4QN: not on the flood risk listDH3 4QP: not on the flood risk listDH3 4QQ: not on the flood risk listDH3 4QW: not on the flood risk listDH3 4SH: not on the flood risk listDH3 4SJ: not on the flood risk listDH3 4SL: not on the flood risk listDH3 4SN: not on the flood risk listDH3 4SP: not on the flood risk listDH3 4SR: not on the flood risk listDH3 4SS: not on the flood risk listDH3 4ST: not on the flood risk listDH3 4SU: not on the flood risk listDH3 4SW: not on the flood risk listDH3 4SX: not on the flood risk listDH3 4HG: low flood risk at worstDH3 4PN: low flood risk at worstDH3 4EN: medium flood risk at worstDH3 4EX: high flood riskDH3 4NT: high flood riskDH3 4QG: high flood risk Chester-le-StreetFence HousesGreat LumleyBournmoor Map of every postcode in the DH3 4 sector, by flood risk Of the 179 postcodes in the DH3 4 sector that ONS places, 3 have a home or business at high risk, 1 are at medium risk at worst, 2 are at low risk at worst and 173 are not on the Environment Agency's at-risk list. Places named: Chester-le-Street, Great Lumley, Bournmoor. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A1(M)A182 Chester-le-StreetGreat LumleyBournmoor
  • A home or business at high risk: 3
  • At medium risk at worst: 1
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 173

Of the 179 postcodes in the DH3 4 sector that ONS places, 3 have a home or business at high risk, 1 are at medium risk at worst, 2 are at low risk at worst and 173 are not on the Environment Agency's at-risk list.

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.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; 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 postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

DH3 4EX1 at high riskDH3 4NT1 at high riskDH3 4QG1 at high risk

What do homes sell for in DH3 4?

Homes in DH3 4 sold for a typical £227,000 in the 12 months to August 2026, across 64 sales, down 12.4% on the 12 months before, HM Land Registry's figures show.

£227,000 typical price, the 12 months to August 2026
£259,250 12 months to August 2025
▼ down 12.4% on the 12 months before
  • Detached £375,000 19 sales
  • Semi-detached £187,500 33 sales
  • Terraced £243,000 9 sales
  • Flat or maisonette 3 sales, too few to price

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 DH3 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 DH3 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.

DH3 4AADH3 4ABDH3 4ADDH3 4AEDH3 4AFDH3 4AGDH3 4AHDH3 4AJDH3 4ALDH3 4ANDH3 4APDH3 4AQDH3 4ARDH3 4ASDH3 4ATDH3 4AWDH3 4AXDH3 4AYDH3 4AZDH3 4BADH3 4BBDH3 4BDDH3 4BEDH3 4BFDH3 4BGDH3 4BHDH3 4BJDH3 4BLDH3 4BNDH3 4BPDH3 4BQDH3 4BWDH3 4DADH3 4DBDH3 4DDDH3 4DEDH3 4DFDH3 4DGDH3 4DHDH3 4DJDH3 4DLDH3 4DPDH3 4DQDH3 4DRDH3 4DSDH3 4DTDH3 4DUDH3 4DWDH3 4DXDH3 4DYDH3 4DZDH3 4EADH3 4EBDH3 4EDDH3 4EEDH3 4EHDH3 4EJDH3 4ENDH3 4EPDH3 4EQDH3 4ERDH3 4ESDH3 4EUDH3 4EWDH3 4EXDH3 4EYDH3 4FDDH3 4FEDH3 4FGDH3 4FHDH3 4FJDH3 4GWDH3 4HADH3 4HBDH3 4HDDH3 4HEDH3 4HFDH3 4HGDH3 4HHDH3 4HLDH3 4HNDH3 4HPDH3 4HRDH3 4HSDH3 4HTDH3 4HUDH3 4HWDH3 4HXDH3 4HYDH3 4HZDH3 4JBDH3 4JDDH3 4JEDH3 4JFDH3 4JGDH3 4JHDH3 4JJDH3 4JLDH3 4JNDH3 4JPDH3 4JRDH3 4JSDH3 4JTDH3 4JUDH3 4JWDH3 4JXDH3 4JYDH3 4JZDH3 4LADH3 4LBDH3 4LDDH3 4LEDH3 4LFDH3 4LGDH3 4LHDH3 4LJDH3 4LLDH3 4LNDH3 4LPDH3 4LQDH3 4LRDH3 4LSDH3 4LTDH3 4LUDH3 4LWDH3 4LXDH3 4LYDH3 4LZDH3 4NADH3 4NBDH3 4NDDH3 4NEDH3 4NFDH3 4NGDH3 4NHDH3 4NJDH3 4NLDH3 4NQDH3 4NSDH3 4NTDH3 4NUDH3 4NXDH3 4PADH3 4PBDH3 4PDDH3 4PEDH3 4PFDH3 4PGDH3 4PHDH3 4PJDH3 4PLDH3 4PNDH3 4PQDH3 4PTDH3 4PUDH3 4PYDH3 4QADH3 4QBDH3 4QGDH3 4QHDH3 4QJDH3 4QLDH3 4QNDH3 4QPDH3 4QQDH3 4QRDH3 4QSDH3 4QWDH3 4SHDH3 4SJDH3 4SLDH3 4SNDH3 4SPDH3 4SRDH3 4SSDH3 4STDH3 4SUDH3 4SWDH3 4SX

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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