RM1 3 postcode sector in the RM1 district

RM1 3 is a sector of the RM1 district: every postcode that starts RM1 3. It has 90 postcodes in use, 22 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 RM1 3 sector, by flood risk

Map of every postcode in the RM1 3 sector, by flood risk Of the 90 postcodes in the RM1 3 sector that ONS places, 3 have a home or business at high risk, 2 are at medium risk at worst, 7 are at low risk at worst and 78 are not on the Environment Agency's at-risk list. Places named: St Edward's. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A1251A118A125 RM1 3AA: not on the flood risk listRM1 3AB: not on the flood risk listRM1 3AE: not on the flood risk listRM1 3AP: not on the flood risk listRM1 3AR: not on the flood risk listRM1 3AW: not on the flood risk listRM1 3AX: not on the flood risk listRM1 3BB: not on the flood risk listRM1 3BD: not on the flood risk listRM1 3BF: not on the flood risk listRM1 3BH: not on the flood risk listRM1 3BJ: not on the flood risk listRM1 3BL: not on the flood risk listRM1 3BS: not on the flood risk listRM1 3BT: not on the flood risk listRM1 3BX: not on the flood risk listRM1 3DA: not on the flood risk listRM1 3DB: not on the flood risk listRM1 3DD: not on the flood risk listRM1 3DJ: not on the flood risk listRM1 3DL: not on the flood risk listRM1 3DQ: not on the flood risk listRM1 3DS: not on the flood risk listRM1 3ED: not on the flood risk listRM1 3EE: not on the flood risk listRM1 3EF: not on the flood risk listRM1 3EN: not on the flood risk listRM1 3EQ: not on the flood risk listRM1 3ER: not on the flood risk listRM1 3FB: not on the flood risk listRM1 3FE: not on the flood risk listRM1 3FF: not on the flood risk listRM1 3FH: not on the flood risk listRM1 3GL: not on the flood risk listRM1 3HD: not on the flood risk listRM1 3HE: not on the flood risk listRM1 3HF: not on the flood risk listRM1 3HG: not on the flood risk listRM1 3HH: not on the flood risk listRM1 3HJ: not on the flood risk listRM1 3HN: not on the flood risk listRM1 3HQ: not on the flood risk listRM1 3HS: not on the flood risk listRM1 3JZ: not on the flood risk listRM1 3LD: not on the flood risk listRM1 3LN: not on the flood risk listRM1 3LS: not on the flood risk listRM1 3LT: not on the flood risk listRM1 3LW: not on the flood risk listRM1 3NA: not on the flood risk listRM1 3NG: not on the flood risk listRM1 3PJ: not on the flood risk listRM1 3QA: not on the flood risk listRM1 3QE: not on the flood risk listRM1 3QN: not on the flood risk listRM1 3QS: not on the flood risk listRM1 3QW: not on the flood risk listRM1 3QY: not on the flood risk listRM1 3RH: not on the flood risk listRM1 3RJ: not on the flood risk listRM1 3RL: not on the flood risk listRM1 3RT: not on the flood risk listRM1 3SB: not on the flood risk listRM1 3WB: not on the flood risk listRM1 3FA: low flood risk at worstRM1 3FG: low flood risk at worstRM1 3LP: low flood risk at worstRM1 3NB: low flood risk at worstRM1 3NH: low flood risk at worstRM1 3PB: low flood risk at worstRM1 3QF: low flood risk at worstRM1 3JR: medium flood risk at worstRM1 3QT: medium flood risk at worstRM1 3QR: high flood riskRM1 3QX: high flood riskRM1 3QZ: high flood risk St Edward's Map of every postcode in the RM1 3 sector, by flood risk Of the 90 postcodes in the RM1 3 sector that ONS places, 3 have a home or business at high risk, 2 are at medium risk at worst, 7 are at low risk at worst and 78 are not on the Environment Agency's at-risk list. Places named: St Edward's. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A1251 St Edward's
  • A home or business at high risk: 3
  • At medium risk at worst: 2
  • At low risk at worst: 7
  • At very low risk only: 0
  • Not on the at-risk list: 78

Of the 90 postcodes in the RM1 3 sector that ONS places, 3 have a home or business at high risk, 2 are at medium risk at worst, 7 are at low risk at worst and 78 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 high risk

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

What do homes sell for in RM1 3?

Homes in RM1 3 sold for a typical £276,250 in the 12 months to August 2026, across 30 sales, down 6.4% on the 12 months before, HM Land Registry's figures show.

£276,250 typical price, the 12 months to August 2026
£295,000 12 months to August 2025
▼ down 6.4% on the 12 months before
  • Detached 2 sales, too few to price
  • Semi-detached 3 sales, too few to price
  • Terraced 3 sales, too few to price
  • Flat or maisonette £234,000 22 sales

Standard sales of homes at market value at the postcodes that start RM1 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

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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