Bangkok's Million-Tree Register
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
How this atlas is made · What “last verified” means · What “source-checked” means
When the city declared its first million reached on 2 July 2024, only 35 percent of the records were trees. The rest were shrubs and climbers, and the register is what makes that checkable.
what does this mean?
The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 9 more in Bangkok · 🗺️ GIS & cadastre guide · 🌱 Environment projects
Bangkok logs every planting from its million-tree campaign in a public register. Since June 2022, district crews, companies and residents photograph each specimen, choose the species and drop a map pin — residents through the LINE account @BangkokTree — and the entries appear on a live map at tree.bangkok.go.th. The register also exposes what the headline number contains: when the city declared its first million reached on 2 July 2024, only 35 percent of the records were trees, the rest shrubs and climbers. No survival audit has been published.
📊 Impact
2,680,178 plantings registered by 26 July 2026, of which 1,551,579 are perennial trees, 946,297 shrubs and 182,302 climbers. At the 1,002,166-record milestone of 2 July 2024 the split was 35% trees, 47% shrubs, 18% climbers.
🎓 Lesson
A per-object register makes a political headline number auditable, and shows what it is made of. It also shows who does the work: of the first million records, district offices logged 804,791 and residents' communities 2,281.
Sources
Continue exploring
Compare this project
A tree with an ID number: four registers, four things the number is for
Giving every tree a record is the same technical act everywhere. What differs is what the record is then used for — and in one case the register turned out to audit the campaign that created it.
| Project | Since | Status | Outcome | Evidence | Run by | Cost | What the record is for |
|---|---|---|---|---|---|---|---|
| Urban Forest Visual & Email-a-TreeMelbourne, 🇦🇺 | 2013 | Live | Succeeded | Independent | City government | not public | An arborists' inventory that accidentally became a public relationship: every street tree carries an ID, a species and an estimate of its remaining useful life — and residents started writing to them. |
| Bangkok's Million-Tree RegisterBangkok, 🇹🇭 | 2022 | Live | Ongoing | Official | City government | not public | An audit of the city's own headline. When the first million was declared, the register showed only about a third of the records were trees; the rest were shrubs and climbers. |
| CityLAB Berlin & Gieß den KiezBerlin, 🇩🇪 | 2019 | Live | Ongoing | Official | Civil society | not public | A task list. The open tree cadastre plus weather data tells residents which tree needs water, and logs who watered it through the drought summers. |
| Freetown the Treetown Mobile Token SystemFreetown, 🇸🇱 | 2020 | Live | Ongoing | Official | City government | not public | A payment record. Community growers are paid by mobile money against geotagged photos of the tree they planted, and survival is what the money is measured on. |
Explore the wider context
📎 Cite this project
1001 Smart Cities (2026). “Bangkok's Million-Tree Register” — Bangkok, Thailand. The Smart City Atlas. https://1001smartcities.org/projects/bangkok-million-tree-register/ (last verified 2026-07-26). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.