Post Proper Southside

Post Proper Southside
Barangay 31
Map of Makati with Post Proper Southside highlighted. Areas in light red indicate overlap with Taguig before the 2023 transfer.
Post Proper Southside
Coordinates: 14°32′30″N 121°02′47″E / 14.54158°N 121.04635°E / 14.54158; 121.04635
CountryPhilippines
RegionNational Capital Region
CityTaguig
District2nd district of Taguig
EstablishedDecember 31, 1972
Transfer of control to Taguig2023
Government
  TypeBarangay
  Barangay CaptainQuirino Sarono
  SK ChairpersonFrancis John San Vicente
Area
  Total
3.412 km2 (1.317 sq mi)
Population
 (2020)
  Total
63,308
  Density19,000/km2 (48,000/sq mi)
Time zoneUTC+8 (PST)
Postal Code
1648
Area Code02

Post Proper Southside, also known as Post Proper South Fort Bonifacio, Barangay 31, or simply Southside, is one of the 38 barangays of Taguig, Philippines. It is one of the ten Embo barangays, and one of the two Inner Fort Bonifacio barangays, the other one being the Post Proper Northside. It was established in 1972 as a settlement inside the Fort Bonifacio Military Reservation, and its territory is disputed with barangays Fort Bonifacio (Bonifacio Capital District, Bonifacio Global City and McKinley Hill), Pinagsama (G2 Village, ISG Village, Palar Village, Panam Village, and Uppper West Village), and Ususan (Wildcat Village). The barangay has multiple exclaves mostly within Palar Village and has settlements in the Consular Area in Lawton Avenue.

According to Makati, its claimed territory consists of the southern tip of Bonifacio Global City and the Manila American Cemetery. Even before its jurisdiction was reintegrated to Taguig, the area is largely under the city's de facto administration instead of Makati the Post Proper Southside overlapping in Located Fort Bonifacio military camp

In April 2023, the disputed barangays outside the BGC were placed under the de jure jurisdiction of Taguig. In October 2023, the Department of the Interior and Local Government issued a memorandum to order the transfer of the Embo barangays to Taguig.