The court ruled that the BMA has unlawfully allowed the hotel to be built on Soi Ruam Ruedee as the soi is not thorough 10-metre wide.
The Building Control Act of 1979 prohibits construction of a large and high building on a soi, which is less than 10-metre wide.
The court ordered the BMA and Aetas hotel to comply with act within 60 days after the ruling.
Chalermpong Klubdee, the lawyer who represented the residents, said the ruling meant the hotel had to be demolished because the construction had been done and the hotel could not be modified.
The Nation