According to a study commissioned by the US-based firm, over 50 per cent of real estate buyers' decisions are influenced by Internet research.
"This phenomenon of researching online for real estate information before making a decision is not limited to metros but also extended to buyers in tier II cities," Google India Industry Director Nitin Bawankule told reporters here.
The overall influence of Internet on real estate transaction value of both residential and commercial property including rentals amounts to USD 43 billion (USD 31 billion for residential and USD 12 billion for commercial), he added.
The survey, conducted by consultancy firm Zinnov across 15 cities in India included the metros, Pune, Lucknow and Ahmedabad with 6,196 respondents.
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Talking about search trends on Google, Bawankule said the number had seen a 3x growth in the last three years.
"There is tremendous opportunity for both online real estate aggregators, brokers and developers to engage the buyers online by providing rich, meaningful and immersive experience to buyers on the Internet," he added.
About 45 per cent said they visited broker sites, blogs and forums to find information before making a decision.
An increasing number of people are also using their mobile devices to search for properties online.
"Mobile queries (those originating from mobile phones) are doubling every year and about 40 per cent of total searches came through mobile phones," Bawankule said.
Also, the study found 73 per cent respondents saying they prefer using their mobile apps for researching for property.
Respondents said websites of developers and aggregators often lacked availability of in-depth information about property and features like easy price comparison.