Spanish House Purchases in 2018: What Can Google Tell Us?

google search

The bullish cycle of the real estate sector consolidated in 2017, as shown by more than 460,000 homes being sold in Spain, up by 14.6% on the previous year. Will house purchases continue to rise at such a considerable rate? “According to Google search data, the outlook is promising,” say CaixaBank Research economists.

Google Trends is a free tool from Google that provides information on the online searches carried out for different themes and geographical areas. Specifically, Google Trends provides monthly information on trends in the popularity of search terms chosen by users (such as «buy flat»). It can also provide data based on a certain timeframe, country or search category (for example, «real estate market»).

A statistical analysis of the data trends provided by Google shows that the popularity of internet searches using the term «comprar piso» (buy flat) in Spain is closely related to the actual house purchases made in the following quarters. This means that searches carried out today in Google can provide many clues as to the house purchases we can expect within one year.

Houses Google


The popularity of the search term «comprar piso» was lower but nevertheless still high in 2017. For CaixaBank, this suggests that house purchases will continue to grow in Spain over the coming quarters, albeit at a somewhat slower rate than last year.

Growth could be around 8% in 2018 which would result in half a million transactions (see the second chart). A somewhat more detailed analysis based on the popularity of search terms such as «comprar piso en Barcelona» (buy flat in Barcelona) and «comprar piso en Madrid» (buy flat in Madrid) suggests that the growth in sales of these two zones will outperform Spain’s average and could reach 10%.

The use of Google search data opens up a new paradigm for the forecasting of real estate trends, a notable achievement given the sector’s cyclical nature. Being able to more accurately predict changes in house purchase trends before these actually happen could improve the capacity of housing supply to react to changes in demand. This is particularly important for sectors such as real estate where supply tends to react slowly. This results in a large amount of real estate for sale accumulating during periods of economic slowdown, aggravating the downward pressure on property prices.

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The Corner
The Corner has a team of on-the-ground reporters in capital cities ranging from New York to Beijing. Their stories are edited by the teams at the Spanish magazine Consejeros (for members of companies’ boards of directors) and at the stock market news site Consenso Del Mercado (market consensus). They have worked in economics and communication for over 25 years.