RG4 5 postcode sector in the RG4 district

RG4 5 is a sector of the RG4 district: every postcode that starts RG4 5. It has 113 postcodes in use, one of them a large-user postcode. 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 RG4 5 sector, by flood risk

Map of every postcode in the RG4 5 sector, by flood risk Of the 113 postcodes in the RG4 5 sector that ONS places, 13 have a home or business at high risk, 38 are at medium risk at worst, 6 are at low risk at worst and 56 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 44 postcodes at high or medium risk; 7 postcodes at high or medium risk. Places named: Caversham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4155 RG4 5DL: not on the flood risk listRG4 5DN: not on the flood risk listRG4 5DP: not on the flood risk listRG4 5DR: not on the flood risk listRG4 5DS: not on the flood risk listRG4 5DT: not on the flood risk listRG4 5DU: not on the flood risk listRG4 5DZ: not on the flood risk listRG4 5EA: not on the flood risk listRG4 5EB: not on the flood risk listRG4 5EE: not on the flood risk listRG4 5EH: not on the flood risk listRG4 5EJ: not on the flood risk listRG4 5EL: not on the flood risk listRG4 5EN: not on the flood risk listRG4 5EP: not on the flood risk listRG4 5ER: not on the flood risk listRG4 5ES: not on the flood risk listRG4 5ET: not on the flood risk listRG4 5EU: not on the flood risk listRG4 5EW: not on the flood risk listRG4 5EY: not on the flood risk listRG4 5HB: not on the flood risk listRG4 5HD: not on the flood risk listRG4 5HE: not on the flood risk listRG4 5HG: not on the flood risk listRG4 5HH: not on the flood risk listRG4 5HJ: not on the flood risk listRG4 5HL: not on the flood risk listRG4 5HP: not on the flood risk listRG4 5HR: not on the flood risk listRG4 5HS: not on the flood risk listRG4 5HT: not on the flood risk listRG4 5HU: not on the flood risk listRG4 5HX: not on the flood risk listRG4 5HY: not on the flood risk listRG4 5JA: not on the flood risk listRG4 5JB: not on the flood risk listRG4 5JD: not on the flood risk listRG4 5JE: not on the flood risk listRG4 5JF: not on the flood risk listRG4 5JG: not on the flood risk listRG4 5JH: not on the flood risk listRG4 5JJ: not on the flood risk listRG4 5JL: not on the flood risk listRG4 5JN: not on the flood risk listRG4 5JP: not on the flood risk listRG4 5JR: not on the flood risk listRG4 5JS: not on the flood risk listRG4 5JT: not on the flood risk listRG4 5JU: not on the flood risk listRG4 5LA: not on the flood risk listRG4 5LD: not on the flood risk listRG4 5LL: not on the flood risk listRG4 5LN: not on the flood risk listRG4 5LP: not on the flood risk listRG4 5AF: low flood risk at worstRG4 5DA: low flood risk at worstRG4 5DD: low flood risk at worstRG4 5DG: low flood risk at worstRG4 5ED: low flood risk at worstRG4 5JZ: low flood risk at worstRG4 5AA: medium flood risk at worstRG4 5AB: medium flood risk at worstRG4 5AD: medium flood risk at worstRG4 5AE: medium flood risk at worstRG4 5AH: medium flood risk at worstRG4 5AJ: medium flood risk at worstRG4 5AL: medium flood risk at worstRG4 5AN: medium flood risk at worstRG4 5AP: medium flood risk at worstRG4 5AR: medium flood risk at worstRG4 5AS: medium flood risk at worstRG4 5AT: medium flood risk at worstRG4 5AU: medium flood risk at worstRG4 5AW: medium flood risk at worstRG4 5AX: medium flood risk at worstRG4 5AY: medium flood risk at worstRG4 5AZ: medium flood risk at worstRG4 5BA: medium flood risk at worstRG4 5BB: medium flood risk at worstRG4 5BE: medium flood risk at worstRG4 5BF: medium flood risk at worstRG4 5BH: medium flood risk at worstRG4 5BJ: medium flood risk at worstRG4 5BL: medium flood risk at worstRG4 5BN: medium flood risk at worstRG4 5BP: medium flood risk at worstRG4 5BT: medium flood risk at worstRG4 5BU: medium flood risk at worstRG4 5BW: medium flood risk at worstRG4 5BX: medium flood risk at worstRG4 5BZ: medium flood risk at worstRG4 5DB: medium flood risk at worstRG4 5DE: medium flood risk at worstRG4 5DQ: medium flood risk at worstRG4 5LB: medium flood risk at worstRG4 5LE: medium flood risk at worstRG4 5LQ: medium flood risk at worstRG4 5LY: medium flood risk at worstRG4 5BG: high flood riskRG4 5BQ: high flood riskRG4 5BS: high flood riskRG4 5BY: high flood riskRG4 5JX: high flood riskRG4 5LG: high flood riskRG4 5LR: high flood riskRG4 5LS: high flood riskRG4 5LT: high flood riskRG4 5LU: high flood riskRG4 5LX: high flood riskRG4 5LZ: high flood riskRG4 5NA: high flood risk Caversham 44 postcodes at high or medium risk, outlined: this goes to RG4 5JX, the one with most homes and businesses at high risk44 postcodes at high or medium risk7 postcodes at high or medium risk, outlined: this goes to RG4 5LX, the one with most homes and businesses at high risk7 postcodes at high or medium risk Map of every postcode in the RG4 5 sector, by flood risk Of the 113 postcodes in the RG4 5 sector that ONS places, 13 have a home or business at high risk, 38 are at medium risk at worst, 6 are at low risk at worst and 56 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 44 postcodes at high or medium risk; 7 postcodes at high or medium risk. Places named: Caversham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4155 Caversham
  • A home or business at high risk: 13
  • At medium risk at worst: 38
  • At low risk at worst: 6
  • At very low risk only: 0
  • Not on the at-risk list: 56
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 113 postcodes in the RG4 5 sector that ONS places, 13 have a home or business at high risk, 38 are at medium risk at worst, 6 are at low risk at worst and 56 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 150 metres of each other. It is not a boundary, and no boundary is drawn.

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

13 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

RG4 5JX34 at high riskRG4 5LX23 at high riskRG4 5BG15 at high riskRG4 5LT14 at high riskRG4 5LS13 at high riskRG4 5BQ12 at high riskRG4 5LU12 at high riskRG4 5LZ10 at high riskRG4 5BS10 at high riskRG4 5BY6 at high riskRG4 5NA4 at high riskRG4 5LR1 at high risk

Where the postcodes at high or medium risk lie together

  • 44 postcodes at high or medium risk, outlined on the map. RG4 5JX, is the one with most homes and businesses at high risk.
  • 7 postcodes at high or medium risk, outlined on the map. RG4 5LX, is the one with most homes and businesses at high risk.

What do homes sell for in RG4 5?

Homes in RG4 5 sold for a typical £425,500 in the 12 months to August 2026, across 82 sales, down 2.2% on the 12 months before, HM Land Registry's figures show.

£425,500 typical price, the 12 months to August 2026
£435,000 12 months to August 2025
▼ down 2.2% on the 12 months before
  • Detached 4 sales, too few to price
  • Semi-detached £496,500 30 sales
  • Terraced £425,000 28 sales
  • Flat or maisonette £247,500 20 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 RG4 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

Postcodes in RG4 5

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.

RG4 5AARG4 5ABRG4 5ADRG4 5AERG4 5AFRG4 5AHRG4 5AJRG4 5ALRG4 5ANRG4 5APRG4 5ARRG4 5ASRG4 5ATRG4 5AURG4 5AWRG4 5AXRG4 5AYRG4 5AZRG4 5BARG4 5BBRG4 5BERG4 5BFRG4 5BGRG4 5BHRG4 5BJRG4 5BLRG4 5BNRG4 5BPRG4 5BQRG4 5BSRG4 5BTRG4 5BURG4 5BWRG4 5BXRG4 5BYRG4 5BZRG4 5DARG4 5DBRG4 5DDRG4 5DERG4 5DGRG4 5DLRG4 5DNRG4 5DPRG4 5DQRG4 5DRRG4 5DSRG4 5DTRG4 5DURG4 5DZRG4 5EARG4 5EBRG4 5EDRG4 5EERG4 5EHRG4 5EJRG4 5ELRG4 5ENRG4 5EPRG4 5ERRG4 5ESRG4 5ETRG4 5EURG4 5EWRG4 5EYRG4 5HBRG4 5HDRG4 5HERG4 5HGRG4 5HHRG4 5HJRG4 5HLRG4 5HPRG4 5HRRG4 5HSRG4 5HTRG4 5HURG4 5HXRG4 5HYRG4 5JARG4 5JBRG4 5JDRG4 5JERG4 5JFRG4 5JGRG4 5JHRG4 5JJRG4 5JLRG4 5JNRG4 5JPRG4 5JRRG4 5JSRG4 5JTRG4 5JURG4 5JXRG4 5JZRG4 5LARG4 5LBRG4 5LDRG4 5LERG4 5LGRG4 5LLRG4 5LNRG4 5LPRG4 5LQRG4 5LRRG4 5LSRG4 5LTRG4 5LURG4 5LXRG4 5LYRG4 5LZRG4 5NA

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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