Politics
Sukhumvit Referendum on Local Infrastructure Bonds Sets 2028 Timeline for District Services
Sukhumvit residents will encounter revised property assessments and new transit connections starting in the second half of 2028 if the August ballot measure receives approval.
How we reported this
The Bangkok Metropolitan Administration has placed a referendum on the August 15 ballot that asks Sukhumvit district voters to approve a 12.8 billion baht bond package for road widening and drainage upgrades along Soi 24 through Soi 55. The measure directly affects the 184,000 registered voters in the six sub-districts that make up Sukhumvit.
City records show the last comprehensive drainage review for the corridor occurred in 2018. Recent budget documents from the BMA Public Works Department list 47 flood events in Sukhumvit between 2022 and 2025, prompting the current proposal to front-load capital spending rather than spread costs across annual operating budgets.
Implementation Schedule
Voters will mark paper ballots at 28 polling stations located inside district office buildings and primary schools. Results are scheduled for certification by 10 September 2026. Bond issuance is projected to begin in the first quarter of 2027, with contractor selection completed by December of that year. Physical work on the first two drainage segments is listed to start in March 2028.
Property owners along the affected sois will receive reassessment notices in January 2028. The legislation states that any increase in the local maintenance levy will appear on the April 2028 property tax bill and will be capped at 180 baht per rai for the initial three years.
Daily Effects for Residents
Commuters who travel between Thong Lor and Phrom Phong during morning peak hours will see construction-related lane reductions on Sukhumvit Road beginning in the third quarter of 2028. The BMA transport division projects that 62,000 daily bus and van passengers will experience average added travel time of eight minutes during the first 18 months of work. After completion, the same report estimates a 14-minute reduction in end-to-end journey times once new drainage capacity removes regular flooding closures.
Local advocates note that small businesses on ground-floor shopfronts will receive advance notice of utility shutoffs 14 days before each scheduled disruption. The legislation requires the BMA to publish a monthly construction calendar on its website starting in February 2028.