Politics
Silom Ordinance 47/2026 Expands Referendum Access on Local Zoning Unlike Peer Municipalities
Silom residents gain petition rights for ballot measures on development projects starting next year, a step not extended to voters in the surrounding districts of Bang Rak and Sathon.
How we reported this
The Silom Municipal Council passed Ordinance 47/2026 on 15 June, giving residents the right to collect 8,000 signatures to place certain zoning changes on the local ballot. The measure applies only inside Silom boundaries and covers proposals that alter commercial or residential density by more than 20 percent. Voters will decide such questions at the next regular municipal election rather than through council vote alone.
The ordinance responds to rapid office and condominium construction recorded in the 2025 Silom Land Use Survey, which counted 47 new high-rise permits issued inside the district since 2023. Council records show that similar growth in adjacent districts has produced repeated resident complaints about traffic and utility strain, yet those districts still require council approval before any public vote.
How Silom rules differ from neighboring districts
Bang Rak and Sathon continue to route all zoning amendments through their municipal councils without a citizen-petition option. Silom’s new threshold of 8,000 signatures equals roughly 4 percent of registered local voters, according to the 2025 voter roll published by the Silom Election Office. The lower barrier is expected to allow the first qualifying petition to reach the ballot by the March 2027 municipal election if signatures are filed before the December 2026 deadline.
Residents living along Silom Road or near Chong Nonsi BTS station will be able to sign petitions at designated municipal service centers or online through the city’s new e-petition portal. A successful referendum would bind the council to the voter outcome for five years, covering projects such as height-limit changes or conversion of shop-house blocks to mixed-use towers. Property owners inside the affected blocks receive mailed notice 90 days before the vote.
Budget and timeline details
The 2026 Silom municipal budget allocates 3.8 million baht for referendum administration, including printing, polling-place staffing and public-notice costs. That figure appears in line item 4.2 of the budget document adopted on 30 April. The same document projects that two to three measures could appear on the 2027 ballot if petitions qualify.
City staff will verify signatures within 30 days of submission and publish the verified count on the municipal website. If the required number is reached, the question proceeds to the ballot without further council action. The ordinance does not apply to citywide tax rates or the annual operating budget, which remain under exclusive council authority.