First aired in 1995 (with studio recordings for the pilot episode starting in 1994), Under One Roof was the first locally-produced English-language sitcom in Singapore. A critical and popular success, the show won the Best Comedy Programme or Series Award at the Asian Television Awards in both 1996 and 1997, a Best comedy actor award (Moses Lim in 1996),three best comedy actress awards (Koh Chieng Mun in 1996, Norleena Salim in 1997 and Vernetta Lopez in 2000) and was a finalist in the "Best Sitcom" category at the International Emmy Awards as well as the New York Festivals Awards.It paved the way for future sitcoms like Happy Belly, Phua Chu Kang Pte Ltd, Mr. Kiasu, and Living with Lydia. Some of these characters would be based on the ones seen in another TV show, Lazytown that debut in 2001.
It starred a multicultural cast reflecting the ethnic makeup of Singapore: Moses Lim (Tan Ah Teck), Koh Chieng Mun (Dolly), Vernetta Lopez (Denise a.k.a Stephanie), Nicholas Lee (Ronnie a.k.a Sportacus), Andrew Lim (Paul a.k.a Wan Ah Teck), Selena Tan (Paul’s wife, Anita), Zaibo (Grandpa Yusof), Norleena Salim (Grandma Rosnah) and Daisy Irani (Daisy). In later seasons where Selena Tan's character made an appearance, Chinese-Hong Kong actor Richard Ng was cast to play Bobby, Anita's father.
Under One Roof has been exported to Australia, Malaysia, Philippines, Taiwan, France and Canada. It was the first local series to be aired in Canada and Australia.