Data specialists, Address Intelligence, claim to have uncovered where estate agents and insurance companies can typically expect to find their highest value customers, although the study does not take in to consideration the differing estate agency fees charged in each area.

The data insight company undertook research in which it looked at household and property statistics for every postcode in England and Wales, in order to map out average household income and combine it with average property prices.

London and surrounding areas unsurprisingly dominate the top 10, with the London West (W) postcode area seeing the highest combined average in the country. This was the only region to top a million pounds with a total of £1,053,335. Southwest London (SW) was the second highest at £979,838.

All the top five highest value postcodes fell within London with London West Central (WC), London Northwest (NW) and London East Central (EC) all totalling above £800,000 when their property price and household income averages were combined.

Of the top 20 highest value postcodes, only two were located outside of Greater London with Watford (WD) the 10^th highest value postcode at £615,997 and Guildford (GU) placing 14^th with a combined salary and property value average of £588,406.

Of the 104 postcodes in England and Wales, when average household income and average property value were combined the top twenty performing postcodes were as follows;

Whilst the majority of the high-value postcodes were in or around London, 18 of the bottom 20 lowest value areas were all in the north of England. Sunderland (SR) scored lowest with a combined average of £158,575 which is roughly seven times less than the highest value postcode.

The bottom three postcodes all fell within the Northeast with Cleveland (TS) and Durham (DH) as the other two lowest value areas. Blackburn (BB) and Wigan (WN) rounded out the bottom five with combined salary and property price averages of £187,058 and £190,275 respectively.  Swansea (SA) and Stoke-on-Trent (ST) were the only areas outside of the North to rank in the bottom 20 postcode areas for value.

Harrogate (HG) was the highest value postcode North of Cambridge, bucking the trend of surrounding areas in the North with a combined average of £432,479.

Of the 104 postcodes in England and Wales, when average household income and average property value were combined, the bottom twenty performing postcodes were as follows (with number 1 referring to the lowest-performing);

James Colebeck, operations director at Address Intelligence, commented: “Being able to target more affluent areas can be incredibly beneficial to businesses especially in the real estate and insurance sectors. Knowing where to invest for potential future growth can be priceless, with areas like Harrogate outperforming their surrounding regions.

“At Address Intelligence we analyse the latest data and by sharing our valuable insights with our clients, we help businesses make decisions based on where they will get the best return.”