UB3 5 postcode sector in the UB3 district

UB3 5 is a sector of the UB3 district: every postcode that starts UB3 5. It has 123 postcodes in use, 4 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 UB3 5 sector, by flood risk

Map of every postcode in the UB3 5 sector, by flood risk Of the 123 postcodes in the UB3 5 sector that ONS places, 3 are at low risk at worst, 1 are at very low risk only and 119 are not on the Environment Agency's at-risk list. 2 postcodes lie beyond the edge and are listed under the map. Places named: Heathrow Villages. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M4A437 UB3 5AA: not on the flood risk listUB3 5AB: not on the flood risk listUB3 5AD: not on the flood risk listUB3 5AE: not on the flood risk listUB3 5AF: not on the flood risk listUB3 5AH: not on the flood risk listUB3 5AJ: not on the flood risk listUB3 5AL: not on the flood risk listUB3 5AN: not on the flood risk listUB3 5AP: not on the flood risk listUB3 5AQ: not on the flood risk listUB3 5AR: not on the flood risk listUB3 5AW: not on the flood risk listUB3 5AY: not on the flood risk listUB3 5BD: not on the flood risk listUB3 5BH: not on the flood risk listUB3 5BJ: not on the flood risk listUB3 5BL: not on the flood risk listUB3 5BN: not on the flood risk listUB3 5BP: not on the flood risk listUB3 5BQ: not on the flood risk listUB3 5BS: not on the flood risk listUB3 5BW: not on the flood risk listUB3 5BZ: not on the flood risk listUB3 5DA: not on the flood risk listUB3 5DD: not on the flood risk listUB3 5DF: not on the flood risk listUB3 5DG: not on the flood risk listUB3 5DH: not on the flood risk listUB3 5DJ: not on the flood risk listUB3 5DL: not on the flood risk listUB3 5DN: not on the flood risk listUB3 5DP: not on the flood risk listUB3 5DQ: not on the flood risk listUB3 5DR: not on the flood risk listUB3 5DS: not on the flood risk listUB3 5DT: not on the flood risk listUB3 5DU: not on the flood risk listUB3 5DW: not on the flood risk listUB3 5DX: not on the flood risk listUB3 5DY: not on the flood risk listUB3 5DZ: not on the flood risk listUB3 5EA: not on the flood risk listUB3 5EB: not on the flood risk listUB3 5ED: not on the flood risk listUB3 5EE: not on the flood risk listUB3 5EF: not on the flood risk listUB3 5EG: not on the flood risk listUB3 5EH: not on the flood risk listUB3 5EJ: not on the flood risk listUB3 5EL: not on the flood risk listUB3 5EN: not on the flood risk listUB3 5EP: not on the flood risk listUB3 5EQ: not on the flood risk listUB3 5ER: not on the flood risk listUB3 5ES: not on the flood risk listUB3 5ET: not on the flood risk listUB3 5EU: not on the flood risk listUB3 5EW: not on the flood risk listUB3 5EX: not on the flood risk listUB3 5EY: not on the flood risk listUB3 5EZ: not on the flood risk listUB3 5FA: not on the flood risk listUB3 5FB: not on the flood risk listUB3 5FD: not on the flood risk listUB3 5FE: not on the flood risk listUB3 5FG: not on the flood risk listUB3 5HA: not on the flood risk listUB3 5HB: not on the flood risk listUB3 5HD: not on the flood risk listUB3 5HF: not on the flood risk listUB3 5HG: not on the flood risk listUB3 5HH: not on the flood risk listUB3 5HJ: not on the flood risk listUB3 5HQ: not on the flood risk listUB3 5HR: not on the flood risk listUB3 5HS: not on the flood risk listUB3 5HT: not on the flood risk listUB3 5HU: not on the flood risk listUB3 5HW: not on the flood risk listUB3 5HX: not on the flood risk listUB3 5HY: not on the flood risk listUB3 5HZ: not on the flood risk listUB3 5JA: not on the flood risk listUB3 5JB: not on the flood risk listUB3 5JD: not on the flood risk listUB3 5JF: not on the flood risk listUB3 5JH: not on the flood risk listUB3 5JJ: not on the flood risk listUB3 5LA: not on the flood risk listUB3 5LB: not on the flood risk listUB3 5LD: not on the flood risk listUB3 5LE: not on the flood risk listUB3 5LF: not on the flood risk listUB3 5LG: not on the flood risk listUB3 5LH: not on the flood risk listUB3 5LJ: not on the flood risk listUB3 5LL: not on the flood risk listUB3 5LN: not on the flood risk listUB3 5LP: not on the flood risk listUB3 5LQ: not on the flood risk listUB3 5LR: not on the flood risk listUB3 5LS: not on the flood risk listUB3 5LT: not on the flood risk listUB3 5LU: not on the flood risk listUB3 5LW: not on the flood risk listUB3 5LX: not on the flood risk listUB3 5LY: not on the flood risk listUB3 5LZ: not on the flood risk listUB3 5NA: not on the flood risk listUB3 5NB: not on the flood risk listUB3 5ND: not on the flood risk listUB3 5NE: not on the flood risk listUB3 5NG: not on the flood risk listUB3 5NH: not on the flood risk listUB3 5NL: not on the flood risk listUB3 5NQ: not on the flood risk listUB3 5NS: not on the flood risk listUB3 5HP: very low flood risk onlyUB3 5HE: low flood risk at worstUB3 5HL: low flood risk at worstUB3 5HN: low flood risk at worst Heathrow Villages Map of every postcode in the UB3 5 sector, by flood risk Of the 123 postcodes in the UB3 5 sector that ONS places, 3 are at low risk at worst, 1 are at very low risk only and 119 are not on the Environment Agency's at-risk list. 2 postcodes lie beyond the edge and are listed under the map. Places named: Heathrow Villages. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Heathrow Villages
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 3
  • At very low risk only: 1
  • Not on the at-risk list: 119

Of the 123 postcodes in the UB3 5 sector that ONS places, 3 are at low risk at worst, 1 are at very low risk only and 119 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

2 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

What do homes sell for in UB3 5?

Homes in UB3 5 sold for a typical £415,000 in the 12 months to August 2026, across 37 sales, up 27.7% on the 12 months before, HM Land Registry's figures show.

£415,000 typical price, the 12 months to August 2026
£325,000 12 months to August 2025
▲ up 27.7% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached £492,750 10 sales
  • Terraced £440,000 11 sales
  • Flat or maisonette £210,000 15 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 UB3 5. 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

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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