Chiang Dao Zoning: What You Can Actually Build
Chiang Dao runs on Chiang Mai's provincial plan, not the colourful city plan most guides describe. That plan uses five zone types, and one — forest conservation — covers most of the district and bans resorts and subdivisions outright, even on privately owned land.
The plan that actually governs Chiang Dao
The operative instrument is the Ministerial Regulation giving effect to the Chiang Mai Provincial Comprehensive Plan, B.E. 2555 (2012) — gazetted 25 April 2012 (Royal Gazette Vol. 129, Part 36 A) — as amended by a 2016 regulation that replaced only the annexed list of prohibited factory types and touched nothing about the colour-zone map itself. Article 2 of the 2012 regulation applies it to "the whole of Chiang Mai province," which is what brings Chiang Dao in.
This is not the same document as the brand-new Chiang Mai city plan gazetted in May 2026, which carries the richer yellow/orange/red/purple/light-brown palette most general articles about "Chiang Mai zoning" describe. That city plan covers exactly seven districts clustered around Chiang Mai municipality — Chiang Dao is not among them. Using the city-plan legend for a Chiang Dao parcel mis-tags it entirely.
One honest caveat: the Land Department's own live map viewer attributes current Chiang Dao zoning to an enforcement date of 5 January 2017. That is not a separate, newer plan — it is the 2016 amendment cited above taking legal effect. Either way, the zone colours, boundaries, and rules below are read from the governing text itself and cross-checked live against the map — if a specific parcel is ambiguous, the one-hour check below resolves it directly.
The five zone colours, and what each permits and forbids
Pink — Community (สีชมพู). Residential, commercial, industrial, agricultural, education, religious, and government use is permitted, along with public utilities. Large factories from an annexed list, licensable fuel depots (except petrol stations), and most LPG storage are barred. A river-frontage setback applies — 6 metres generally, 15 metres along named major rivers.
Green — Rural and agricultural (สีเขียว). Agriculture, animal husbandry, residence, education, religious and government institutions, and utilities are permitted. Beyond the Pink-zone restrictions, this colour additionally bars land subdivision for industry, commerce, or residence, and bars "large building" residential use — a formally subdivided housing estate is not allowed here, though a single non-subdivided house is.
White with a green border and hatching — Conservation rural and agricultural. Same permitted uses as Green, plus environmental conservation activity itself. It adds three more prohibitions: hotels (with a narrow exception for eco-tourism-style lodging that doesn't affect local culture or the natural environment — a real but case-by-case opening, not a guaranteed license), the same subdivision bans as Green, and golf courses outright.
Light green with white hatching — Forest conservation. This is the strictest zone and, by area, covers most of Chiang Dao district. The base rule permits only preservation and protection of forest, wildlife, and watersheds — no commercial, residential-subdivision, resort, or hotel use is contemplated at all. Even where land is already legally, privately held inside this zone, use is narrowed to agriculture or a single detached house that is not a subdivision and not a "large building." No commercial use, no resort, no rental-villa operation, no hotel, no subdivision — full stop, regardless of who owns the deed.
Blue — Open space for environmental-quality preservation. Limited to environmental maintenance, tourism, fishing, aquatic conservation, agriculture, husbandry, and public benefit. The three zone-5 areas named in the province-wide plan are all reservoirs elsewhere in Chiang Mai — none fall inside Chiang Dao district.
The confirmed Pink and Green zones around the two towns
Reading the regulation's own boundary text against Chiang Dao's two municipalities gives a direct, citable answer for two of the district's seven tambons:
- Chiang Dao town (ตำบลเชียงดาว): the municipal boundary itself is zoned Pink — Community. The rural land immediately surrounding it, out to the national forest reserve boundary, is zoned Green — Rural and agricultural. Beyond that ring, the forest reserve itself is Forest conservation.
- Mueang Ngai town (ตำบลเมืองงาย): the same pattern — the municipal boundary is Pink, the surrounding rural land out to the forest reserve is Green.
For the district's other five tambons — Mueang Na, Ping Khong, Thung Khao Phuang, Mae Na, and Mueang Khong — the governing text does not name them individually, and a live check of the Land Department's map viewer found forest-conservation colour dominating most sampled points, with a smaller Pink-and-Green split confirmed only around Mueang Ngai's own market town. Do not assume a parcel in those five tambons is buildable without checking it directly — see the one-hour procedure below.
Tambon by tambon: what the official viewer shows
We clicked two or three points inside each of Chiang Dao's seven tambons directly on the Department of Public Works and Town & Country Planning's live viewer (landuseplan.dpt.go.th) and read the zone code and colour each point returned. Here is what came back:
| Tambon | Zone codes & colours seen | What that permits | Confidence |
|---|---|---|---|
| เชียงดาว — Chiang Dao | Pink ชุมชน 1.8 (district town); hatched green อนุรักษ์ป่าไม้ 4.9 (hills) | Town: a normal residential or commercial build; hills: single house or farming only | Medium-high |
| เมืองนะ — Mueang Na | Hatched green อนุรักษ์ป่าไม้ 4.2 only (school, village edge) | Single house or farming only, even on titled private land | Medium |
| เมืองงาย — Mueang Ngai | Pink ชุมชน 1.6 (market town); solid green ชนบทและเกษตรกรรม 2.1 (adjacent land) | Market town: a normal residential or commercial build; surrounding land: single house or farming, no subdivision | Medium |
| ปิงโค้ง — Ping Khong | Hatched green อนุรักษ์ป่าไม้ 4.2 only (tambon office, fields) | Single house or farming only, even on titled private land | Low-medium |
| ทุ่งข้าวพวง — Thung Khao Phuang | Hatched green อนุรักษ์ป่าไม้ 4.2 (school, village); solid green ชนบทและเกษตรกรรม 2.1 (river-valley fields) | Village: single house or farming only; fields: single house or farming, no subdivision | Medium |
| แม่นะ — Mae Na | Solid green ชนบทและเกษตรกรรม 2.2 throughout, market included | Single house or farming, no subdivision — no forest-conservation hatch found here | Medium-high |
| เมืองคอง — Mueang Khong | Hatched green อนุรักษ์ป่าไม้ 4.2 (tambon office, fields, village edge) | Single house or farming only, even on titled private land | Medium |
A pattern falls out once all seven are read side by side: only the built-up cores of Chiang Dao town and Mueang Ngai town show the pink community zone that permits a normal build. Mae Na reads solid rural-agricultural green everywhere we checked, market included, rather than forest conservation. The other four tambons — Mueang Na, Ping Khong, Thung Khao Phuang, and Mueang Khong — read mostly forest-conservation green even directly over their village cores and government offices, which means a single house or farming on private land is the practical ceiling there.
Treat this as a first-pass sample, not a survey: these readings come from two or three points per tambon, taken on 21 September 2026, and the viewer's own banner states its data is for preliminary information only and cannot be used as a legal reference. A pocket of a different colour could sit just off the points we sampled. Before relying on any of this for a specific plot — especially one near a zone boundary — look it up by its own deed number and confirm the answer in writing with the provincial Public Works and Town & Country Planning office. One more note: the viewer labels the governing plan as enforced 5 January 2017 — that's the 2016 amendment to the 2012 provincial plan taking legal effect, not a separate, newer plan.
The overlays that bind regardless of the town-plan colour
Several protections sit on top of whatever colour the town plan shows, and some are stricter than anything above:
- Doi Chiang Dao Wildlife Sanctuary — 521 square kilometres, established 25 August 1978, covering parts of both Chiang Dao and neighbouring Wiang Haeng district. Construction, land clearing, and new private claims are generally prohibited here regardless of town-plan colour.
- Pha Daeng National Park — 1,123 square kilometres, gazetted 2 November 2000. It was originally proposed and known as "Chiang Dao National Park" before being renamed, so "there's no Chiang Dao National Park" is a misleading half-truth — the park is there, just under a different name.
- Doi Chiang Dao UNESCO Biosphere Reserve — designated September 2021, Thailand's fifth. It is a recognition layered on top of the sanctuary and park boundaries above; it carries no separate Thai statutory force of its own, so the enforceable law is still the sanctuary and park Acts underneath it.
- The Chiang Dao National Forest Reserve — named repeatedly in the town-planning regulation itself as a boundary line, meaning land inside it is separately governed by national forest reserve law regardless of its town-plan colour.
Two myths worth killing
Myth one: there's a percentage cap on non-agricultural use. We read the full text of the governing regulation, articles 6 through 11, and searched it directly for any percentage figure tied to land use. There is none — zero occurrences. If a percentage cap is quoted to you for a Chiang Dao parcel, it is not coming from this plan.
Myth two: there's a 35% slope rule in the zoning plan. The commonly cited "35% slope" figure is real in Thai law, but it lives in the Environmental Impact Assessment trigger list administered separately by ONEP — not in this town-planning colour regulation, and not in anything that governs an ordinary house build. It applies to project scale: resorts with 80 rooms or more (or 4,000 square metres or more of floor area), and subdivisions of 500 plots or 100 rai or more. We could not independently locate and quote the exact slope-percentage clause in this research pass, so treat the number as directionally real for large developments and irrelevant to most individual buyers.
The one-hour check, for any specific plot
- Pull the title deed data (10 minutes) — the exact deed number and survey-sheet number from the Chiang Dao branch Land Office, cross-checked against the LandsMaps boundary overlay.
- Run the DPT land-use viewer (15 minutes) — landuseplan.dpt.go.th/main, searched by deed number where possible, or by province/district/subdistrict. Screenshot the colour and zone code shown; this is the only source that gives a parcel-exact, current answer.
- Check the overlays (15 minutes) — ask specifically whether the parcel falls inside the Wildlife Sanctuary, Pha Daeng National Park, or the national forest reserve boundary. Any one of these can forbid development even where the town-plan colour alone would allow it.
- Call the provincial planning office for anything ambiguous — the Chiang Mai Provincial Office of Public Works and Town & Country Planning takes written and phone enquiries and can confirm a specific parcel's zone directly.
We run this check, or its equivalent, on every listing before calling a plot buildable. Ask to see the result, not just the claim.