Are there any leasehold projects in Singapore that are around 50 years old?

Certainly, Here are 13 45 - 55 years old projects for the 99 years leasehold tenure.

Project Name	Tenure	Completion	No. of Units	Avg PSF*
TEXTILE CENTRE	99 yrs from 02/06/1970	1977	132	1,287
HILLCREST ARCADIA	99 yrs from 01/12/1975	1980	272	1,249
THE PLAZA	99 yrs from 03/09/1968	1979	234	1,216
INTERNATIONAL PLAZA	99 yrs from 02/06/1970	1976	210	1,212
LAGUNA PARK	99 yrs from 24/08/1977	1978	516	1,182
LAKEVIEW ESTATE	99 yrs from 01/06/1977	1977	240	1,088
SHERWOOD TOWER	99 yrs from 30/08/1976	1980	269	1,066
HOLLANDSWOOD COURT	99 yrs from 07/05/1975	1980	27	1,056
NEPTUNE COURT	99 yrs from 01/09/1976	1975	751	1,038
FOOK HAI BUILDING	99 yrs from 18/01/1972	1976	28	986
PEOPLE'S PARK CENTRE	99 yrs from 02/06/1970	1976	120	894
THOMSON PLAZA	99 yrs from 15/10/1976	1979	20	709
MAYFAIR PARK	99 yrs from 28/03/1952	1972	-	447

*Based on URA sales data in the last 12 months. Otherwise, based on latest transaction