Which Bangkok areas have the worst flood risk for condo buyers?

The Bangkok Metropolitan Administration (BMA) flood map designates Level 4–5 (highest risk) in northern and eastern districts including Don Mueang, Bang Khen, Lat Phrao, Min Buri, and Nong Chok. During heavy monsoon seasons these areas experience 30–80cm of standing water. Active condo listings exist in all these zones, often without flood disclosure.

How does BMA rate flood risk in Bangkok?

BMA uses a 1–5 scale based on historical flood depth and drainage capacity: Level 1 = no significant flood history; Level 2 = minor puddles; Level 3 = 10–30cm; Level 4 = 30–80cm; Level 5 = over 80cm. The 2011 mega-flood affected vast parts of Bangkok at Level 4–5. RealData maps all condos against this BMA dataset.

Are condos in Bangkok flood zones cheaper?

Not significantly. RealData analysis shows flood Level 4–5 condos often list near market price, as flood risk is rarely disclosed in listings. Buyers focused on central-Bangkok alternatives can filter for Level 1–2 areas first, then compare prices within those safer zones.

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Popular Bangkok Condos in High Flood-Risk Districts

2026-05-07 · RealData warning list

LINE WA

Some Bangkok districts go knee-deep every monsoon. The northern and eastern outskirts where the 2011 great flood started, plus the southern coastal khet built on tidal flats. We compiled a 0–5 risk score per district from BMA Drainage Department reports, JICA flood-mitigation studies, and 2011 inundation records — see the Bangkok flood map for the full map.

And yet, condos in those Level 4-5 districts keep getting bought. Influencers and agents don't usually mention the flood part. We compiled the buildings with the most active listings inside high-risk districts, so you can verify before you buy.

#	Condo	District	Flood	Listings
1	The Parkland Charan - Pinklao	bang-phlat	L4	69
2	The Origin Ramintra 83 Station	khan-na-yao	L4	53
3	Esta Bliss	min-buri	L5	48
4	The Origin Ram 209 Interchange	min-buri	L5	46
5	Supalai Park Srinakarin	Prawet	L4	42
6	The Parkland Phetkasem	bang-khae	L4	41
7	Aspire Ngamwongwan	lak-si	L5	41
8	Lumpini Ville On Nut - Phatthanakan	Prawet	L4	40
9	De Lapis Charan 81	bang-phlat	L4	39
10	Ideo Charan 70 - Riverview	bang-phlat	L4	39
11	Fuse Sense' Bangkae	bang-khae	L4	37
12	Baan Navatara	bueng-kum	L4	36

Methodology

Flood risk: 0–5 score from BMA Drainage + JICA + 2011 great flood records (district level)
Listings count: active sale + rent listings on hipflat
Filter: flood Level 4+ AND 3+ active listings
Sort: listings count descending (popularity)

District-level baseline. Within the same district, road elevation and drainage vary — visit the site before purchase.