RH3 postcode district: Brockham and around, Surrey

RH3 is a postcode district in Surrey, with 145 postcodes in use in 1 sector. It has postcodes in Brockham, Dorking and Reigate. Its council is Mole Valley.

Postcodes in use
145
Sectors
1
Council
Mole Valley
Places
3 places

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

Every postcode in RH3, by flood risk

Map of every postcode in RH3, by flood risk Of the 145 postcodes in RH3 that ONS places, 11 have a home or business at high risk, 2 are at medium risk at worst, 3 are at low risk at worst and 129 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. Places named: Brockham, Dorking. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A24A25 RH3 7AA: not on the flood risk listRH3 7AB: not on the flood risk listRH3 7AF: not on the flood risk listRH3 7AG: not on the flood risk listRH3 7AH: not on the flood risk listRH3 7AL: not on the flood risk listRH3 7AN: not on the flood risk listRH3 7AP: not on the flood risk listRH3 7AQ: not on the flood risk listRH3 7AR: not on the flood risk listRH3 7AS: not on the flood risk listRH3 7AT: not on the flood risk listRH3 7AU: not on the flood risk listRH3 7AW: not on the flood risk listRH3 7AX: not on the flood risk listRH3 7AY: not on the flood risk listRH3 7AZ: not on the flood risk listRH3 7BA: not on the flood risk listRH3 7BB: not on the flood risk listRH3 7BD: not on the flood risk listRH3 7BE: not on the flood risk listRH3 7BF: not on the flood risk listRH3 7BG: not on the flood risk listRH3 7BH: not on the flood risk listRH3 7BJ: not on the flood risk listRH3 7BL: not on the flood risk listRH3 7BN: not on the flood risk listRH3 7BP: not on the flood risk listRH3 7BQ: not on the flood risk listRH3 7BS: not on the flood risk listRH3 7BT: not on the flood risk listRH3 7BU: not on the flood risk listRH3 7BW: not on the flood risk listRH3 7BY: not on the flood risk listRH3 7BZ: not on the flood risk listRH3 7DA: not on the flood risk listRH3 7DB: not on the flood risk listRH3 7DE: not on the flood risk listRH3 7DF: not on the flood risk listRH3 7DG: not on the flood risk listRH3 7DH: not on the flood risk listRH3 7DJ: not on the flood risk listRH3 7DL: not on the flood risk listRH3 7DN: not on the flood risk listRH3 7DQ: not on the flood risk listRH3 7DR: not on the flood risk listRH3 7DS: not on the flood risk listRH3 7DT: not on the flood risk listRH3 7DU: not on the flood risk listRH3 7DW: not on the flood risk listRH3 7DX: not on the flood risk listRH3 7DY: not on the flood risk listRH3 7DZ: not on the flood risk listRH3 7EA: not on the flood risk listRH3 7EB: not on the flood risk listRH3 7ED: not on the flood risk listRH3 7EE: not on the flood risk listRH3 7EG: not on the flood risk listRH3 7EH: not on the flood risk listRH3 7EJ: not on the flood risk listRH3 7EL: not on the flood risk listRH3 7EN: not on the flood risk listRH3 7EP: not on the flood risk listRH3 7EQ: not on the flood risk listRH3 7ER: not on the flood risk listRH3 7ES: not on the flood risk listRH3 7ET: not on the flood risk listRH3 7EU: not on the flood risk listRH3 7EW: not on the flood risk listRH3 7EX: not on the flood risk listRH3 7EY: not on the flood risk listRH3 7EZ: not on the flood risk listRH3 7FE: not on the flood risk listRH3 7FF: not on the flood risk listRH3 7FG: not on the flood risk listRH3 7FH: not on the flood risk listRH3 7HA: not on the flood risk listRH3 7HB: not on the flood risk listRH3 7HD: not on the flood risk listRH3 7HF: not on the flood risk listRH3 7HG: not on the flood risk listRH3 7HH: not on the flood risk listRH3 7HJ: not on the flood risk listRH3 7HP: not on the flood risk listRH3 7HR: not on the flood risk listRH3 7HS: not on the flood risk listRH3 7HU: not on the flood risk listRH3 7HW: not on the flood risk listRH3 7HX: not on the flood risk listRH3 7HY: not on the flood risk listRH3 7HZ: not on the flood risk listRH3 7JA: not on the flood risk listRH3 7JB: not on the flood risk listRH3 7JD: not on the flood risk listRH3 7JE: not on the flood risk listRH3 7JF: not on the flood risk listRH3 7JG: not on the flood risk listRH3 7JH: not on the flood risk listRH3 7JJ: not on the flood risk listRH3 7JQ: not on the flood risk listRH3 7JR: not on the flood risk listRH3 7JS: not on the flood risk listRH3 7JZ: not on the flood risk listRH3 7LA: not on the flood risk listRH3 7LB: not on the flood risk listRH3 7LE: not on the flood risk listRH3 7LF: not on the flood risk listRH3 7LG: not on the flood risk listRH3 7LJ: not on the flood risk listRH3 7LL: not on the flood risk listRH3 7LN: not on the flood risk listRH3 7LP: not on the flood risk listRH3 7LT: not on the flood risk listRH3 7LU: not on the flood risk listRH3 7LW: not on the flood risk listRH3 7LX: not on the flood risk listRH3 7LY: not on the flood risk listRH3 7LZ: not on the flood risk listRH3 7NA: not on the flood risk listRH3 7ND: not on the flood risk listRH3 7NH: not on the flood risk listRH3 7NJ: not on the flood risk listRH3 7XA: not on the flood risk listRH3 7HL: low flood risk at worstRH3 7JW: low flood risk at worstRH3 7NB: low flood risk at worstRH3 7JP: medium flood risk at worstRH3 7LR: medium flood risk at worstRH3 7AD: high flood riskRH3 7AE: high flood riskRH3 7LS: high flood riskRH3 7DP: high flood riskRH3 7JL: high flood riskRH3 7JN: high flood riskRH3 7JT: high flood riskRH3 7JU: high flood riskRH3 7JX: high flood riskRH3 7JY: high flood riskRH3 7LD: high flood risk BrockhamDorking 6 postcodes at high or medium risk, outlined: this goes to RH3 7JL, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in RH3, by flood risk Of the 145 postcodes in RH3 that ONS places, 11 have a home or business at high risk, 2 are at medium risk at worst, 3 are at low risk at worst and 129 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. Places named: Brockham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Brockham 6 postcodes at high or medium risk, outlined: this goes to RH3 7JL, the one with most homes and businesses at high risk6 postcodes at high or medium risk
  • A home or business at high risk: 11
  • At medium risk at worst: 2
  • At low risk at worst: 3
  • At very low risk only: 0
  • Not on the at-risk list: 129
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 145 postcodes in RH3 that ONS places, 11 have a home or business at high risk, 2 are at medium risk at worst, 3 are at low risk at worst and 129 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 220 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 51.2326, longitude -0.2773. 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.

RH3 7JL11 at high riskRH3 7JT8 at high riskRH3 7JX7 at high riskRH3 7AD7 at high riskRH3 7JU4 at high riskRH3 7JY3 at high riskRH3 7JN3 at high riskRH3 7DP2 at high riskRH3 7AE1 at high riskRH3 7LD1 at high riskRH3 7LS1 at high risk

Where the postcodes at high or medium risk lie together

  • 6 postcodes at high or medium risk, outlined on the map. RH3 7JL, is the one with most homes and businesses at high risk.

What broadband can you get in RH3?

Ofcom reports on 141 of the 145 postcodes in RH3. At 96 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit96 of 141
Postcodes where every home can get superfast131 of 141

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 RH3 at risk of flooding?

16 of the 145 postcodes in RH3 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 62 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 16 of 145 postcodes High: 48Medium: 14Low: 63Very low: 1

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 RH3?

Homes in RH3 sold for a typical £637,500 in the 12 months to August 2026, across 48 sales, down 7.3% on the 12 months before, HM Land Registry's figures show.

£637,500 typical price, the 12 months to August 2026
12 months to August 2025
£687,475
12 months to August 2026
£637,500

▼ down 7.3% on the 12 months before

Detached£985,000 15 sales
Semi-detached£594,862 16 sales
Terraced£500,000 10 sales
Flat or maisonette£365,000 7 sales

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 RH3

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

RH3 7145 postcodes
UK postcode format explained

Places in RH3

Towns and villages with postcodes in RH3, and how many each has here.

Brockham postcodes,61Dorking postcodes,4Reigate postcodes,1

Who covers RH3

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

  • Dorking and Horley145

Police force areas

  • Surrey145

Next to RH3

RH2 postcode district RH4 postcode district All RH districts Brockham postcodes

"Next to" is by number: the districts before and after RH3 in the RH area.

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