Urban Retreat is conveniently located opposite Terminal 21. It is just opposite across the road.
I consider it as one of the more expensive massage in Bangkok. However, they offer excellent massage services. The old lady that provided my massage service applied enough strength and pressure. My muscles and joints were well loosen and you feel relaxed after the massage.
You have to make advance booking via their website before arrival. It seems that Urban Retreat is also quite popular with Singaporeans and tourists.
I tried the Oriental Massage package which includes
40 min Foot Massage
10 min Head and Shoulder Massage
70 min Thai Massage with Herbal Compress Balls