The hotel development pipelines for Europe, Asia Pacific, Caribbean / Mexico, Central and South America, and the Middle East / Africa regions increased in April, according to new data by STR Global.

According to the report, Asia Pacific will see the largest expected hotel room growth in Mumbai, New Delhi, Manila, Bangkok and Bali, compared with the existing supply of key Asian markets.

New Delhi ended the month with the largest expected room growth (+48.5%) out of the 9,931 rooms in the region’s total active pipeline, followed by Manila (+28.2%) with 5,019 rooms, Mumbai (+20.6%) with 3,801 rooms, Bali (+13.7%) with 4,319 rooms and Bangkok (+12.9%) with 7,413 rooms.

The Caribbean / Mexico region has 37 projects under construction, which are expected to open 5,667 new rooms in 2011, increasing the area’s room supply by 1%, with one-third of the rooms in the upscale chain-scale segment.

In 2012, the region will have 58 projects with 8,583 rooms, and in 2013 it will open 16 projects with 2,625 rooms.

In the Central and South America area, Panama City reported the largest number of rooms under construction with 2,624 rooms, followed by Bogota (813 rooms), Sao Paulo (546 rooms), Lima (542 rooms) and Santiago (144 rooms).

Europe’s pipeline is also expected to grow with the UK containing one-third of the continent’s expected openings for 2012 comprising 13,271 rooms. During 2011, 204 more projects comprising 32,984 rooms are expected to open, providing a 0.8% increase in room supply.

During 2012, the region will open 257 projects with 45,532 rooms, and in 2013 a total of 114 projects are planned to open with 21,390 rooms.