Is Your Bangkok Condo Overpriced? How to Check the Fair Price Per Sqm

A Bangkok condo is overpriced when its asking price per square meter sits well above the median for the same zone, after you adjust for floor, building age, and walking distance to the nearest BTS or MRT station. The fastest way to check is to convert the asking price to a per-sqm number, then compare it against the zone median for comparable stock. If the unit is 15 to 25 percent above the adjusted median with no clear reason, it is priced to sit on the market, not to sell.

This guide shows you how to run that check yourself. It is the same logic a disciplined buyer's agent uses before making an offer, reduced to a process you can complete in about 20 minutes per unit.

Why a single asking price tells you almost nothing

A Bangkok asking price in isolation is just a number a seller hopes to get. It is not an appraisal, not a transaction record, and not a market reference. Sellers price for many reasons that have nothing to do with the market: they paid too much in 2019 and want to break even, an agent told them a flattering number to win the listing, or they are testing the market and will negotiate hard later.

The only way to know whether a price is reasonable is to put it next to comparable units. The unit of comparison that travels across buildings and sizes is price per square meter. A 35 sqm studio and a 90 sqm two-bedroom in the same building are not directly comparable on total price, but their per-sqm figures are. Convert everything to per-sqm and you can compare like with like.

To get the per-sqm figure, divide the asking price by the unit's interior area in square meters. A 5,400,000 baht unit at 45 sqm is 120,000 baht per sqm. Now you have a number you can benchmark.

Step one: find the zone median

Every Bangkok zone has a different price structure. Inner Sukhumvit trades at a different level than On Nut, which trades at a different level than Lat Phrao. Comparing a Phrom Phong unit against a citywide average is useless, because the citywide average blends 400,000 baht per sqm luxury stock with 40,000 baht per sqm suburban stock. You need the median for the specific zone.

This is where a per-zone median approach matters. Vurel groups Bangkok into 47 zones and tracks the asking-price distribution within each one across nine portals. Looking at the median rather than the average is deliberate. Averages get dragged upward by a handful of trophy listings priced at fantasy levels. The median, the middle value, is a more honest read of where the typical unit in a zone is actually asking.

Start by pulling the median per-sqm for the zone your unit sits in. For orientation, the broad zone structure across Bangkok looks like this:

Zone tier	Typical per-sqm range	Example zones
Ultra-prime	200,000 to 400,000+ THB	Chidlom, Langsuan, lower Sukhumvit core
Premium central	120,000 to 250,000 THB	Sukhumvit, Thonglor, Sathorn, Silom
Growth zones	80,000 to 180,000 THB	Rama 9, Ratchada, Ari
Value corridor	55,000 to 130,000 THB	On Nut, Phra Khanong, Ladprao
Suburban outer	35,000 to 95,000 THB	Bang Na, Nonthaburi, Rangsit

These are wide ranges on purpose. The point of the zone median is to narrow that range down to the specific pocket your unit sits in. A unit near Asok BTS and a unit on a quiet Sukhumvit soi 15 minutes from the station are both "Sukhumvit," but their fair per-sqm figures can differ by 30 percent or more.

For a deeper read on how these tiers break down, see our complete 2026 price-per-sqm breakdown and the Bangkok zone guide.

Step two: adjust for the five variables that move per-sqm

The zone median is your anchor, not your answer. A specific unit deserves a premium or a discount against that median depending on five things. Adjust the median up or down before you judge the asking price.

Station distance

Walking distance to a BTS or MRT entrance is the single largest swing factor inside a zone. A unit within 300 meters of a station commands a clear premium. Past roughly 800 meters, the premium fades fast, and past 1.2 kilometers a "near the BTS" claim is marketing, not reality. If your unit is a genuine five-minute walk from the platform, it deserves to sit above the zone median. If it is a sweaty 15-minute walk in Bangkok heat, it should sit below.

Floor and view

Within the same building, a high floor with an open view can carry a 30 to 50 percent per-sqm premium over a low floor facing the next building's wall. When you compare your unit against the zone median, ask what floor the median stock sits on. A 20th-floor unit benchmarked against mostly low-floor comparables will look expensive when it may be fairly priced for its floor.

Building age and condition

A 2024-built project and a 2008-built project in the same zone do not trade at the same per-sqm. Newer buildings command a premium for modern layouts, better amenities, and lower near-term repair risk. Older stock trades at a discount but can be a genuine value if the building is well managed. A renovated older unit narrows the gap; an unrenovated one widens it.

Building tier and amenities

Branded residences, projects with strong facilities, EV charging, and a reputable juristic management all support a premium. A bare-bones building with a tired lobby and a thin sinking fund should trade below the zone median, regardless of the address.

Size and layout efficiency

Very small units (under 28 sqm) often carry a higher per-sqm than larger units in the same building, because the entry price stays accessible. Large units carry a lower per-sqm but a higher total price. Keep this in mind when your comparable set mixes studios and two-bedrooms.

Step three: build a comparable set

Now pull five to ten genuinely comparable listings: same zone, similar station distance, similar age, similar size band. This is the part most buyers skip, and it is the part that matters most. You are not comparing your unit against the whole zone. You are comparing it against the handful of units a buyer would realistically consider alongside it.

Spread your comparables across portals rather than trusting one. The same unit is often posted on several Thai portals at slightly different prices, and a single portal shows you only its own slice of supply. A cross-portal view is what stops you from anchoring on one optimistic listing. This is the core reason a cross-portal dataset exists: one portal is a keyhole, the full market is the room.

For each comparable, compute the per-sqm. Now you have a small distribution. Where does your target unit's per-sqm fall inside it? If it sits in the middle, the price is defensible. If it sits at the top with no clear advantage in floor, age, or station distance, it is overpriced.

Step four: read the asking-price history

A current asking price is a snapshot. The history behind it is the story. A unit that has been listed for eight months and cut its price twice is telling you something the headline number hides: the original ask was wrong, and the seller knows it.

This is where asking-price history becomes a buyer's edge. Tracking how a listing's price has moved over time reveals motivation. A fresh listing at the zone median is one situation. A listing that started 20 percent above the median, sat for months, and has now been cut back toward the median is a different situation entirely, and usually a more negotiable one.

Vurel's data tracks the full asking-price history for listings across its coverage. The pattern to watch for is the stale, repeatedly cut listing. It signals a seller who mispriced and is now chasing the market down. That is often your best negotiating position.

A worked example

Say you are looking at a 48 sqm one-bedroom in a growth zone, asking 6,720,000 baht.

1. Convert to per-sqm: 6,720,000 / 48 = 140,000 baht per sqm.
2. Pull the zone median for comparable stock: say it sits around 115,000 baht per sqm.
3. Adjust the median for this unit. It is a genuine 400-meter walk to the MRT (premium), on the 18th floor with a clear view (premium), but the building is 12 years old and lightly dated (discount). Net, you might adjust the fair figure up to roughly 125,000 to 130,000 baht per sqm.
4. Compare: the unit asks 140,000 against an adjusted-fair 125,000 to 130,000. It is roughly 8 to 12 percent above fair.
5. Check the history: it has been listed for five months with one price cut already.

Conclusion: the unit is mildly overpriced, the seller has already shown they will move, and a measured offer near the adjusted-fair figure is reasonable. Without the per-sqm method, you would just be staring at "6.72 million" with no idea whether that is a deal or a stretch.

What "overpriced" does and does not mean

A unit priced above the zone median is not automatically overpriced. It may be genuinely better: higher floor, newer, closer to transit, in a stronger building. The per-sqm method is not about finding the cheapest unit. It is about making sure any premium you pay maps to a real advantage, not to a seller's hope or an agent's flattery.

Equally, a unit at or below the median is not automatically a bargain. A low per-sqm can signal a problem: a bad layout, a north-facing wall view, a building with a deficit sinking fund, or a unit with outstanding common-area debt. The method tells you where to look harder, not what to skip.

FAQ

How do I find a Bangkok condo's price per sqm?

Divide the asking price by the unit's interior area in square meters. A 4,500,000 baht unit at 40 sqm is 112,500 baht per sqm. Use interior area, not the sometimes inflated "sellable area" a brochure quotes.

Should I use the average or the median for a zone?

Use the median. Averages get pulled up by a few trophy listings priced far above the market. The median, the middle value, better reflects what the typical unit in a zone is actually asking.

How far above the zone median is too far?

There is no hard line, but a unit sitting 15 to 25 percent above the adjusted zone median with no clear advantage in floor, age, station distance, or building quality is usually priced to negotiate or to sit. Treat that gap as your starting point for a conversation, not as the price you pay.

Why compare across multiple portals?

A single portal shows you only its own listings, and the same unit can be posted at different prices on different portals. A cross-portal view gives you a fuller, more honest distribution and stops you from anchoring on one optimistic number.

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Checking a fair price is a comparison problem, and comparison needs data. Vurel aggregates roughly 1.4 million cross-portal Thai listings across nine portals and 47 Bangkok zones, with per-zone medians, per-sqm pricing, and full asking-price history. Start your check with the full market at vurel.io. To see how prices vary across the city, browse the zone overview.