Kiettisack International School is located in a beautiful building on the Lao-Thai Friendship Road in Sokpaluang Village, Vientiane. The school has enlarged its facilities in order to expand and enrich the academic program. The campus consists of 59 classrooms with toilet in every floor level, a science laboratory, a library, a video room, an art studio, a music center, a canteen, and a school supplies store. The expansive school grounds also boast a well-maintained garden, an attractive outdoors play area, an enclosed playground, a basketball court and a tennis court.
In September 2013, Kiettisack International School acquired a second campus in Vientiane to accommodate the Junior and Senior Secondary levels. This elegant site has 16 spacious teaching classrooms, two well-appointed science laboratories, two state-of-the art ICT laboratories, a football pitch and a covered all-weather sports area, a well-stocked library, an art studio, a canteen and an administration center.