RM4 postcode district: Havering and around

RM4 is a postcode district mostly in Essex, with 160 postcodes in use in 1 sector. It has postcodes in Havering. It is split between 3 councils: Epping Forest (118 postcodes), Havering (28) and Brentwood (14). 132 are in Essex. ONS lists no county for the other 28.

Postcodes in use
160
Sectors
1
Councils
3 councils
Places
Havering

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in RM4, by flood risk

Map of every postcode in RM4, by flood risk Of the 160 postcodes in RM4 that ONS places, 7 have a home or business at high risk, 5 are at medium risk at worst, 2 are at low risk at worst, 1 are at very low risk only and 145 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. One postcode lies beyond the edge and is listed under the map. Places named: Chigwell Row. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M25M11 RM4 1AA: not on the flood risk listRM4 1AB: not on the flood risk listRM4 1AD: not on the flood risk listRM4 1AF: not on the flood risk listRM4 1AH: not on the flood risk listRM4 1AJ: not on the flood risk listRM4 1AL: not on the flood risk listRM4 1AS: not on the flood risk listRM4 1AT: not on the flood risk listRM4 1AU: not on the flood risk listRM4 1AX: not on the flood risk listRM4 1BA: not on the flood risk listRM4 1BB: not on the flood risk listRM4 1BD: not on the flood risk listRM4 1BF: not on the flood risk listRM4 1BL: not on the flood risk listRM4 1BS: not on the flood risk listRM4 1BT: not on the flood risk listRM4 1BU: not on the flood risk listRM4 1BX: not on the flood risk listRM4 1BY: not on the flood risk listRM4 1DA: not on the flood risk listRM4 1DD: not on the flood risk listRM4 1DE: not on the flood risk listRM4 1DF: not on the flood risk listRM4 1DG: not on the flood risk listRM4 1DH: not on the flood risk listRM4 1DJ: not on the flood risk listRM4 1DL: not on the flood risk listRM4 1DN: not on the flood risk listRM4 1DP: not on the flood risk listRM4 1DQ: not on the flood risk listRM4 1DR: not on the flood risk listRM4 1DS: not on the flood risk listRM4 1DU: not on the flood risk listRM4 1DW: not on the flood risk listRM4 1DY: not on the flood risk listRM4 1EE: not on the flood risk listRM4 1EG: not on the flood risk listRM4 1EH: not on the flood risk listRM4 1EL: not on the flood risk listRM4 1EP: not on the flood risk listRM4 1ER: not on the flood risk listRM4 1ES: not on the flood risk listRM4 1ET: not on the flood risk listRM4 1EU: not on the flood risk listRM4 1EW: not on the flood risk listRM4 1EY: not on the flood risk listRM4 1FA: not on the flood risk listRM4 1FB: not on the flood risk listRM4 1FD: not on the flood risk listRM4 1FE: not on the flood risk listRM4 1FF: not on the flood risk listRM4 1FH: not on the flood risk listRM4 1FL: not on the flood risk listRM4 1HA: not on the flood risk listRM4 1HB: not on the flood risk listRM4 1HD: not on the flood risk listRM4 1HE: not on the flood risk listRM4 1HG: not on the flood risk listRM4 1HH: not on the flood risk listRM4 1HJ: not on the flood risk listRM4 1HL: not on the flood risk listRM4 1HP: not on the flood risk listRM4 1HR: not on the flood risk listRM4 1HS: not on the flood risk listRM4 1HT: not on the flood risk listRM4 1JH: not on the flood risk listRM4 1JJ: not on the flood risk listRM4 1JL: not on the flood risk listRM4 1JP: not on the flood risk listRM4 1JR: not on the flood risk listRM4 1JS: not on the flood risk listRM4 1JT: not on the flood risk listRM4 1JU: not on the flood risk listRM4 1JX: not on the flood risk listRM4 1LA: not on the flood risk listRM4 1LB: not on the flood risk listRM4 1LD: not on the flood risk listRM4 1LE: not on the flood risk listRM4 1LT: not on the flood risk listRM4 1LU: not on the flood risk listRM4 1LX: not on the flood risk listRM4 1NA: not on the flood risk listRM4 1NB: not on the flood risk listRM4 1ND: not on the flood risk listRM4 1NH: not on the flood risk listRM4 1NJ: not on the flood risk listRM4 1NL: not on the flood risk listRM4 1NP: not on the flood risk listRM4 1NR: not on the flood risk listRM4 1PA: not on the flood risk listRM4 1PB: not on the flood risk listRM4 1PE: not on the flood risk listRM4 1PH: not on the flood risk listRM4 1PJ: not on the flood risk listRM4 1PL: not on the flood risk listRM4 1PP: not on the flood risk listRM4 1PR: not on the flood risk listRM4 1PS: not on the flood risk listRM4 1PT: not on the flood risk listRM4 1PU: not on the flood risk listRM4 1PX: not on the flood risk listRM4 1PY: not on the flood risk listRM4 1QA: not on the flood risk listRM4 1QB: not on the flood risk listRM4 1QH: not on the flood risk listRM4 1QJ: not on the flood risk listRM4 1QL: not on the flood risk listRM4 1QP: not on the flood risk listRM4 1QR: not on the flood risk listRM4 1QS: not on the flood risk listRM4 1RH: not on the flood risk listRM4 1RP: not on the flood risk listRM4 1RR: not on the flood risk listRM4 1RS: not on the flood risk listRM4 1RX: not on the flood risk listRM4 1SJ: not on the flood risk listRM4 1SL: not on the flood risk listRM4 1SP: not on the flood risk listRM4 1TA: not on the flood risk listRM4 1TD: not on the flood risk listRM4 1TU: not on the flood risk listRM4 1TX: not on the flood risk listRM4 1UE: not on the flood risk listRM4 1UP: not on the flood risk listRM4 1UQ: not on the flood risk listRM4 1UT: not on the flood risk listRM4 1UX: not on the flood risk listRM4 1XA: not on the flood risk listRM4 1XH: not on the flood risk listRM4 1XL: not on the flood risk listRM4 1XP: not on the flood risk listRM4 1XS: not on the flood risk listRM4 1XT: not on the flood risk listRM4 1XU: not on the flood risk listRM4 1XX: not on the flood risk listRM4 1UL: very low flood risk onlyRM4 1FG: low flood risk at worstRM4 1RD: low flood risk at worstRM4 1BN: medium flood risk at worstRM4 1EF: medium flood risk at worstRM4 1EJ: medium flood risk at worstRM4 1RT: medium flood risk at worstRM4 1UB: medium flood risk at worstRM4 1EX: high flood riskRM4 1ST: high flood riskRM4 1UA: high flood riskRM4 1UD: high flood riskRM4 1UH: high flood riskRM4 1UJ: high flood riskRM4 1YA: high flood risk Chigwell Row 6 postcodes at high or medium risk, outlined: this goes to RM4 1UA, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in RM4, by flood risk Of the 160 postcodes in RM4 that ONS places, 7 have a home or business at high risk, 5 are at medium risk at worst, 2 are at low risk at worst, 1 are at very low risk only and 145 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. One postcode lies beyond the edge and is listed under the map. Places named: Chigwell Row. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A113M11 Chigwell Row
  • A home or business at high risk: 7
  • At medium risk at worst: 5
  • At low risk at worst: 2
  • At very low risk only: 1
  • Not on the at-risk list: 145
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 160 postcodes in RM4 that ONS places, 7 have a home or business at high risk, 5 are at medium risk at worst, 2 are at low risk at worst, 1 are at very low risk only and 145 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. A dashed outline shows where 5 or more lie within 400 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.6412, longitude 0.1593. Open this area on OpenStreetMap

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.

RM4 1UA4 at high riskRM4 1UH3 at high riskRM4 1YA3 at high riskRM4 1ST2 at high riskRM4 1UD1 at high riskRM4 1UJ1 at high riskRM4 1EX1 at high risk

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

RM4 1UY

Where the postcodes at high or medium risk lie together

  • 6 postcodes at high or medium risk, outlined on the map. RM4 1UA, is the one with most homes and businesses at high risk.

What broadband can you get in RM4?

Ofcom reports on 153 of the 160 postcodes in RM4. At 87 of them every home and business can get gigabit broadband, and at 7 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit87 of 153
Postcodes where every home can get superfast110 of 153
Postcodes where some cannot get decent broadband7 of 153

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is RM4 at risk of flooding?

15 of the 160 postcodes in RM4 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 34 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 15 of 160 postcodes High: 15Medium: 19Low: 54Very low: 13

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in RM4?

Homes in RM4 sold for a typical £580,000 in the 12 months to August 2026, across 39 sales, down 11.2% on the 12 months before, HM Land Registry's figures show.

£580,000 typical price, the 12 months to August 2026
12 months to August 2025
£653,000
12 months to August 2026
£580,000

▼ down 11.2% on the 12 months before

Detached£832,500 22 sales
Semi-detached£510,000 5 sales
Terraced£490,000 11 sales
Flat or maisonette 1 sale, too few to price

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

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 RM4

Pick a sector, then a postcode. A sector is the district plus the next digit.

RM4 1160 postcodes
UK postcode format explained

Places in RM4

Towns and villages with postcodes in RM4, and how many each has here.

Havering postcodes,21

Who covers RM4

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Brentwood and Ongar131
  • Romford21
  • Hornchurch and Upminster7
  • Epping Forest1

Police force areas

  • Essex132
  • Metropolitan Police28

Next to RM4

RM3 postcode district RM5 postcode district All RM districts Havering postcodes

"Next to" is by number: the districts before and after RM4 in the RM area.

Check a postcode

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