The firm said it has received over £500m of enquiries from expats interested in buy-to-let investments in the first seven months of the year, an increase of 130% on a year-on-year basis.
Around a quarter of enquiries came from British expats based in the United Arab Emirates, followed by those in the USA (12.5%), Hong Kong (9%), Singapore (7.5%) and Switzerland (6%).
Earlier this year, Enness also noted a growth in US-based Brits returning home as the Trump administration began its work.
It found interest from Australia and Dubai was also strong.
Buy-to-let and online
Nigel Pascoe, director of lending at Skipton International, said its enquiries from all of the top five countries had at least doubled compared to 2016.
He highlighted that buy-to-let popularity was growing among British expats, despite the various tax and regulatory changes taking place.
Pascoe added that expats were increasingly looking online to begin the buying process and understand how much they could borrow.
Other lenders are also seeing growing interest in buy-to-let from expats.
In June Saffron for Intermediaries announced a series of enhancements to its range, including removing all country restrictions, following an increase in demand, while Vida launched a new expat range of landlord deals.