Tanglin Halt estate is set to be redeveloped by HDB, and will progressively offer up to 5,500 new residential flats (Photo: EdgeProp's LandLens).SINGAPORE (EDGEPROP) - Tanglin Halt estate, one of Singapore’s oldest public housing estates in Queenstown, will be redeveloped into a new integrated development.The new integrated development will include a hawker centre, market and polyclinic as well as up to 5,500 new residential flats, Senior Minister of State, Ministry of National Development and M