N3 3 postcode sector in the N3 district

N3 3 is a sector of the N3 district: every postcode that starts N3 3. It has 192 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 N3 3 sector, by flood risk

Map of every postcode in the N3 3 sector, by flood risk Of the 192 postcodes in the N3 3 sector that ONS places, 1 are at medium risk at worst, 2 are at low risk at worst and 189 are not on the Environment Agency's at-risk list. Places named: Finchley Church End. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. N3 3AA: not on the flood risk listN3 3AB: not on the flood risk listN3 3AD: not on the flood risk listN3 3AE: not on the flood risk listN3 3AF: not on the flood risk listN3 3AG: not on the flood risk listN3 3AH: not on the flood risk listN3 3AJ: not on the flood risk listN3 3AL: not on the flood risk listN3 3AN: not on the flood risk listN3 3AP: not on the flood risk listN3 3AQ: not on the flood risk listN3 3AR: not on the flood risk listN3 3AS: not on the flood risk listN3 3AT: not on the flood risk listN3 3AU: not on the flood risk listN3 3AX: not on the flood risk listN3 3AY: not on the flood risk listN3 3BA: not on the flood risk listN3 3BB: not on the flood risk listN3 3BD: not on the flood risk listN3 3BE: not on the flood risk listN3 3BF: not on the flood risk listN3 3BG: not on the flood risk listN3 3BH: not on the flood risk listN3 3BJ: not on the flood risk listN3 3BL: not on the flood risk listN3 3BN: not on the flood risk listN3 3BP: not on the flood risk listN3 3BT: not on the flood risk listN3 3BU: not on the flood risk listN3 3BY: not on the flood risk listN3 3DA: not on the flood risk listN3 3DB: not on the flood risk listN3 3DD: not on the flood risk listN3 3DE: not on the flood risk listN3 3DF: not on the flood risk listN3 3DG: not on the flood risk listN3 3DH: not on the flood risk listN3 3DJ: not on the flood risk listN3 3DL: not on the flood risk listN3 3DN: not on the flood risk listN3 3DP: not on the flood risk listN3 3DR: not on the flood risk listN3 3DS: not on the flood risk listN3 3DT: not on the flood risk listN3 3DU: not on the flood risk listN3 3DY: not on the flood risk listN3 3EA: not on the flood risk listN3 3EB: not on the flood risk listN3 3ED: not on the flood risk listN3 3EE: not on the flood risk listN3 3EF: not on the flood risk listN3 3EG: not on the flood risk listN3 3EH: not on the flood risk listN3 3EJ: not on the flood risk listN3 3EL: not on the flood risk listN3 3EN: not on the flood risk listN3 3EQ: not on the flood risk listN3 3ER: not on the flood risk listN3 3EU: not on the flood risk listN3 3EW: not on the flood risk listN3 3EX: not on the flood risk listN3 3EY: not on the flood risk listN3 3EZ: not on the flood risk listN3 3GR: not on the flood risk listN3 3HA: not on the flood risk listN3 3HB: not on the flood risk listN3 3HD: not on the flood risk listN3 3HE: not on the flood risk listN3 3HF: not on the flood risk listN3 3HG: not on the flood risk listN3 3HN: not on the flood risk listN3 3HP: not on the flood risk listN3 3HR: not on the flood risk listN3 3HS: not on the flood risk listN3 3HU: not on the flood risk listN3 3HX: not on the flood risk listN3 3HY: not on the flood risk listN3 3JA: not on the flood risk listN3 3JB: not on the flood risk listN3 3JD: not on the flood risk listN3 3JG: not on the flood risk listN3 3JH: not on the flood risk listN3 3JJ: not on the flood risk listN3 3JL: not on the flood risk listN3 3JN: not on the flood risk listN3 3JP: not on the flood risk listN3 3JY: not on the flood risk listN3 3JZ: not on the flood risk listN3 3LA: not on the flood risk listN3 3LB: not on the flood risk listN3 3LD: not on the flood risk listN3 3LF: not on the flood risk listN3 3LL: not on the flood risk listN3 3LN: not on the flood risk listN3 3LS: not on the flood risk listN3 3LT: not on the flood risk listN3 3LU: not on the flood risk listN3 3LX: not on the flood risk listN3 3LY: not on the flood risk listN3 3NA: not on the flood risk listN3 3NB: not on the flood risk listN3 3ND: not on the flood risk listN3 3NE: not on the flood risk listN3 3NG: not on the flood risk listN3 3NH: not on the flood risk listN3 3NJ: not on the flood risk listN3 3NL: not on the flood risk listN3 3NN: not on the flood risk listN3 3NP: not on the flood risk listN3 3NR: not on the flood risk listN3 3NS: not on the flood risk listN3 3NU: not on the flood risk listN3 3NW: not on the flood risk listN3 3NX: not on the flood risk listN3 3PA: not on the flood risk listN3 3PB: not on the flood risk listN3 3PD: not on the flood risk listN3 3PE: not on the flood risk listN3 3PG: not on the flood risk listN3 3PH: not on the flood risk listN3 3PJ: not on the flood risk listN3 3PL: not on the flood risk listN3 3PN: not on the flood risk listN3 3PP: not on the flood risk listN3 3PQ: not on the flood risk listN3 3PR: not on the flood risk listN3 3PS: not on the flood risk listN3 3PT: not on the flood risk listN3 3PY: not on the flood risk listN3 3QB: not on the flood risk listN3 3QD: not on the flood risk listN3 3QE: not on the flood risk listN3 3QG: not on the flood risk listN3 3QH: not on the flood risk listN3 3QJ: not on the flood risk listN3 3QL: not on the flood risk listN3 3QN: not on the flood risk listN3 3QP: not on the flood risk listN3 3QR: not on the flood risk listN3 3QS: not on the flood risk listN3 3QT: not on the flood risk listN3 3QU: not on the flood risk listN3 3QW: not on the flood risk listN3 3QX: not on the flood risk listN3 3QY: not on the flood risk listN3 3RA: not on the flood risk listN3 3RB: not on the flood risk listN3 3RD: not on the flood risk listN3 3RE: not on the flood risk listN3 3RH: not on the flood risk listN3 3RJ: not on the flood risk listN3 3RL: not on the flood risk listN3 3RN: not on the flood risk listN3 3RP: not on the flood risk listN3 3RR: not on the flood risk listN3 3RS: not on the flood risk listN3 3RT: not on the flood risk listN3 3RU: not on the flood risk listN3 3RW: not on the flood risk listN3 3RX: not on the flood risk listN3 3RY: not on the flood risk listN3 3SA: not on the flood risk listN3 3SB: not on the flood risk listN3 3SD: not on the flood risk listN3 3SE: not on the flood risk listN3 3SF: not on the flood risk listN3 3SH: not on the flood risk listN3 3SJ: not on the flood risk listN3 3SL: not on the flood risk listN3 3SN: not on the flood risk listN3 3SP: not on the flood risk listN3 3SQ: not on the flood risk listN3 3SR: not on the flood risk listN3 3SS: not on the flood risk listN3 3ST: not on the flood risk listN3 3SU: not on the flood risk listN3 3SW: not on the flood risk listN3 3SX: not on the flood risk listN3 3SZ: not on the flood risk listN3 3TA: not on the flood risk listN3 3TP: not on the flood risk listN3 3TR: not on the flood risk listN3 3TX: not on the flood risk listN3 3TY: not on the flood risk listN3 3TZ: not on the flood risk listN3 3ES: low flood risk at worstN3 3PX: low flood risk at worstN3 3PU: medium flood risk at worst Finchley Church End Map of every postcode in the N3 3 sector, by flood risk Of the 192 postcodes in the N3 3 sector that ONS places, 1 are at medium risk at worst, 2 are at low risk at worst and 189 are not on the Environment Agency's at-risk list. Places named: Finchley Church End. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Finchley Church End
  • A home or business at high risk: 0
  • At medium risk at worst: 1
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 189

Of the 192 postcodes in the N3 3 sector that ONS places, 1 are at medium risk at worst, 2 are at low risk at worst and 189 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. 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; 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 medium risk at worst

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

N3 3PU42 at medium risk

What do homes sell for in N3 3?

Homes in N3 3 sold for a typical £812,500 in the 12 months to August 2026, across 62 sales, down 0.8% on the 12 months before, HM Land Registry's figures show.

£812,500 typical price, the 12 months to August 2026
£819,000 12 months to August 2025
▼ down 0.8% on the 12 months before
  • Detached £1,147,500 5 sales
  • Semi-detached £1,180,000 19 sales
  • Terraced 4 sales, too few to price
  • Flat or maisonette £515,000 34 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 N3 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 N3 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.

N3 3AAN3 3ABN3 3ADN3 3AEN3 3AFN3 3AGN3 3AHN3 3AJN3 3ALN3 3ANN3 3APN3 3AQN3 3ARN3 3ASN3 3ATN3 3AUN3 3AXN3 3AYN3 3BAN3 3BBN3 3BDN3 3BEN3 3BFN3 3BGN3 3BHN3 3BJN3 3BLN3 3BNN3 3BPN3 3BTN3 3BUN3 3BYN3 3DAN3 3DBN3 3DDN3 3DEN3 3DFN3 3DGN3 3DHN3 3DJN3 3DLN3 3DNN3 3DPN3 3DRN3 3DSN3 3DTN3 3DUN3 3DYN3 3EAN3 3EBN3 3EDN3 3EEN3 3EFN3 3EGN3 3EHN3 3EJN3 3ELN3 3ENN3 3EQN3 3ERN3 3ESN3 3EUN3 3EWN3 3EXN3 3EYN3 3EZN3 3GRN3 3HAN3 3HBN3 3HDN3 3HEN3 3HFN3 3HGN3 3HNN3 3HPN3 3HRN3 3HSN3 3HUN3 3HXN3 3HYN3 3JAN3 3JBN3 3JDN3 3JGN3 3JHN3 3JJN3 3JLN3 3JNN3 3JPN3 3JYN3 3JZN3 3LAN3 3LBN3 3LDN3 3LFN3 3LLN3 3LNN3 3LSN3 3LTN3 3LUN3 3LXN3 3LYN3 3NAN3 3NBN3 3NDN3 3NEN3 3NGN3 3NHN3 3NJN3 3NLN3 3NNN3 3NPN3 3NRN3 3NSN3 3NUN3 3NWN3 3NXN3 3PAN3 3PBN3 3PDN3 3PEN3 3PGN3 3PHN3 3PJN3 3PLN3 3PNN3 3PPN3 3PQN3 3PRN3 3PSN3 3PTN3 3PUN3 3PXN3 3PYN3 3QBN3 3QDN3 3QEN3 3QGN3 3QHN3 3QJN3 3QLN3 3QNN3 3QPN3 3QRN3 3QSN3 3QTN3 3QUN3 3QWN3 3QXN3 3QYN3 3RAN3 3RBN3 3RDN3 3REN3 3RHN3 3RJN3 3RLN3 3RNN3 3RPN3 3RRN3 3RSN3 3RTN3 3RUN3 3RWN3 3RXN3 3RYN3 3RZN3 3SAN3 3SBN3 3SDN3 3SEN3 3SFN3 3SHN3 3SJN3 3SLN3 3SNN3 3SPN3 3SQN3 3SRN3 3SSN3 3STN3 3SUN3 3SWN3 3SXN3 3SZN3 3TAN3 3TPN3 3TRN3 3TXN3 3TYN3 3TZN3 3WP

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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