How Much Is My Bangkok Condo Worth? A Data-Driven Valuation Method

To estimate what your Bangkok condo is worth, start with the median asking price per square meter for your zone, adjust it for your unit's floor, age, station distance, and condition, then multiply by your unit's size and sanity-check the result against a handful of comparable listings. That gives you a defensible market-referenced value rather than a number a single agent pulled from intuition. This guide walks through the full method, with a worked example, so you can value your unit before you list it.

Valuation matters most at the moment of listing. Price too high and your unit joins the stale pile, sitting for months and signaling desperation when you finally cut. Price too low and you leave real money on the table. The method below threads that needle with data.

Why "what I paid plus appreciation" is the wrong starting point

The most common way Bangkok owners value their unit is to take what they paid, add a few years of assumed appreciation, and call that the price. This is how units end up overpriced and stuck.

Your purchase price is your history, not the market's opinion. If you bought near the top of a cycle, or paid a developer's premium off-plan, your cost basis may sit above what the unit will fetch today. If you bought early in a now-appreciated zone, your cost basis may sit well below current value. Either way, what you paid is irrelevant to a buyer. They are comparing your unit against other units for sale right now, not against your bank statement.

Market value is set by comparison. The right starting point is therefore the same one a buyer uses: the per-sqm price of comparable units currently on the market in your zone.

Step one: anchor on the zone median per sqm

Convert the question from total price to price per square meter, because per-sqm is the unit that compares across different sizes. Then find the median per-sqm for your zone.

Use the median, not the average. A zone's average asking price gets dragged upward by a few trophy listings priced at fantasy levels that will never transact. The median, the middle value of all listings, is a more honest read of where the typical unit is actually asking. Vurel's per-zone median approach groups Bangkok into 47 zones and tracks the asking-price distribution within each across nine portals, which is exactly the reference you want for an anchor.

Pull the median per-sqm for your specific zone. For orientation across the city:

Zone tier	Typical per-sqm range	Example zones
Premium central	120,000 to 250,000 THB	Sukhumvit, Thonglor, Sathorn
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 ranges are wide because the zone median narrows them to your specific pocket. Your job in the next step is to adjust that median to your exact unit.

Step two: adjust the median for your unit

The zone median describes a typical unit. Yours is not typical, so adjust up or down for the five variables that move per-sqm.

Station distance

A genuine short walk to a BTS or MRT entrance is the biggest single premium inside a zone. Within 300 meters, add a premium. Past 800 meters, the premium fades. Past 1.2 kilometers, "near the BTS" is not a real selling point and you should sit at or below the median.

Floor and view

Within a building, a high floor with an open view can carry a 30 to 50 percent per-sqm premium over a low floor facing a wall. Adjust your anchor for where your unit sits, not for the building's best unit.

Building age and condition

Newer buildings command a premium for modern layouts and lower repair risk. Older stock trades at a discount, narrowed if your unit is renovated and widened if it is dated. Be honest about condition. Buyers will be.

Building tier and management

Strong amenities, EV charging, a reputable juristic person, and a healthy sinking fund support a premium. A tired building with a thin reserve trades below the median regardless of address.

Layout efficiency

Very small units carry a higher per-sqm to keep the entry price accessible. Larger units carry a lower per-sqm but a higher total price. Account for your size band.

After these adjustments, you have an adjusted-fair per-sqm for your specific unit.

Step three: multiply and produce a range

Multiply your adjusted per-sqm by your unit's interior area in square meters. That is your central estimate. Then build a range around it, because valuation is an estimate, not a single point.

A practical range is roughly your central estimate minus 5 percent to plus 5 percent. The low end is your realistic quick-sale number. The high end is your patient, well-marketed asking price. Where you list inside that range depends on how fast you need to sell and how the market is moving (see our 2026 price-trends read for whether your zone is holding or softening).

Step four: sanity-check against live comparables

A model is only as good as its reality check. Pull five to ten genuinely comparable listings: same zone, similar station distance, similar age, similar size band. Compute each one's per-sqm. Where does your adjusted-fair per-sqm fall inside that distribution?

If your estimate sits in the middle of comparable asking prices, it is defensible. If it sits at the top, ask what advantage justifies the premium. If it sits at the bottom, double-check you have not under-counted your unit's strengths.

Spread your comparables across portals. The same unit is often posted on several Thai portals at different prices, and any single portal shows only its slice of supply. A cross-portal view gives you the fuller distribution and keeps you from anchoring on one optimistic number. This cross-portal comparison is exactly what Vurel's dataset is built for: roughly 1.4 million listings across nine portals and 47 Bangkok zones, with per-sqm pricing and full asking-price history.

Step five: read the asking-price history of your comparables

A current asking price is a snapshot. The history is the story. A comparable that has been listed for six months and cut its price twice tells you its original ask was wrong, and that the real market clears below it. Anchoring your valuation on a stale, over-asked listing inflates your own estimate.

Weight your comparables toward fresh listings that are moving and toward listings whose asking prices have held, not toward stale ones still chasing the market down. Vurel tracks the full asking-price history for listings in its coverage, so you can see which of your comparables are realistic and which are aspirational.

A worked example

You own a 52 sqm one-bedroom in a growth zone, on the 15th floor with a clear view, a 350-meter walk to the MRT, in a 9-year-old, well-managed building, lightly updated.

1. Zone median per-sqm: say 110,000 baht per sqm for comparable stock.
2. Adjust for your unit: close to transit (premium), good floor and view (premium), 9 years old and lightly updated (small discount), well-managed building (premium). Net, adjust up to roughly 122,000 to 128,000 baht per sqm.
3. Multiply: 125,000 (midpoint) x 52 = 6,500,000 baht central estimate.
4. Range: roughly 6,175,000 (quick-sale) to 6,825,000 (patient asking).
5. Sanity-check: comparable units in the zone ask 6.2M to 7.1M; the fresh, moving ones cluster near 6.4M to 6.7M. Your central estimate fits.
6. History check: the units asking above 7M have each sat for months with cuts. You avoid anchoring on them.

Conclusion: list around 6.6 to 6.8 million if you can be patient, drop toward 6.3 million if you need a fast sale. Either way, you have a number you can defend to a buyer with data, not a number you hope is right.

Pricing to sell, not just to value

Valuation tells you what your unit is worth. Pricing is the strategic decision of where to list inside your range. In a holding zone, listing near the top of your range is reasonable because demand is steady. In a softening zone, listing near the median gets you seen and sold while over-asking gets you ignored, then cut, then stale.

The worst outcome in any market is the over-priced listing that sits. Every week it sits, it accumulates a track record of "still available," and buyers read that as a problem. A unit priced correctly from day one sells faster and often for more than one that started high and limped down. The data-driven valuation above is what keeps you from that trap.

FAQ

How do I value my Bangkok condo without an agent?

Find the median asking price per sqm for your zone, adjust it for your unit's floor, age, station distance, and condition, multiply by your unit's size, then sanity-check against five to ten comparable live listings across multiple portals. That gives you a defensible market-referenced value.

Should I value based on what I paid for it?

No. Your purchase price is your cost history, not the current market's opinion. Buyers compare your unit against other units for sale today, so value it against current comparable asking prices, not against what you paid.

Why use the median instead of the average per-sqm?

The average gets pulled up by a few trophy listings priced far above the market. The median, the middle value, better reflects what the typical unit in your zone is actually asking, which is what you want as an anchor.

How wide should my asking-price range be?

A practical range is roughly your central estimate minus 5 percent (quick-sale) to plus 5 percent (patient, well-marketed). Where you list inside it depends on how fast you need to sell and whether your zone is holding or softening.

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A defensible valuation comes from comparison, and comparison needs cross-portal data. Vurel aggregates roughly 1.4 million Thai listings across nine portals and 47 Bangkok zones, with per-zone medians, per-sqm pricing, and full asking-price history. Before you list, check your number against the full market at vurel.io, or browse the zone overview to see how your zone compares.