Hilton’s Doubletree brand has added the 50th country to its network, with the addition of the first property in Germany.

The Doubletree by Hilton Frankfurt Niederrad is a conversion of the former Innside by Melia Frankfurt Niederrad, and is located around five miles from the city’s airport, close to the Frankfurt-Niederrad train station.

Features of the 146-room hotel include an all-day restaurant with terrace seating, a 24-hour fitness centre, and meeting and events space for up to 140 attendees.

Hilton used the rebranding to highlight the growth of the Doubletree portfolio, which has nearly quadrupled in the last decade.

Initially a US-focused brand, Hilton opened its first UK Doubletree in 2008, and now has over 615 properties and 141,000 rooms, including the recently opened Doubletree by Hilton Rome Monti.

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Hilton said that “One of the major factors behind the brand’s successful expansion over the past decade is the increase of conversions of non-Hilton properties”, with a total of 64 per cent of the brand’s hotels worldwide being converted properties.

Doubletree by Hilton Frankfurt Niederrad is the group’s eighth hotel in the city, joining the existing Hilton Frankfurt City Centre, Hilton Garden Inn Frankfurt City Centre, Hampton by Hilton Frankfurt City Centre East, Hampton by Hilton Frankfurt City Centre Messe, Hampton by Hilton Frankfurt Airport, Hilton Frankfurt Airport, and Hilton Garden Inn Frankfurt Airport.

Commenting on the rebranding Shawn McAteer, global brand head, Doubletree by Hilton, said:

“Doubletree by Hilton is one of the portfolio’s fastest growing brands and we are delighted to celebrate the 50th country milestone and our first hotel in Germany.

“We look forward to expanding our global footprint to develop more properties in key destinations, from overwater bungalows in sought-after resort locations to high rise rooftop bars with 360-degree views of major city skylines.”