Sixty thousand empty

Bangkok is carrying more than 60,000 unsold condominium units, worth over ฿200 billion.

Nationwide the figure is around 350,000 units — roughly six years of inventory at current absorption rates.

And the demand side is deteriorating rather than stabilising. Take-up on newly launched projects fell to 24.3% in Q1 2026, from 43.8% the previous quarter. Nearly halved, in three months.

Developers have responded the only way they can: new launches for 2026 are expected at around 15,000 units, down 12.33%, worth ฿60 billion. That’s a market building far less because it cannot sell what it has already built.

Why this happened

Nothing mysterious. Read it alongside article 09 and it assembles itself.

Household debt at 88% of GDP, over half of it non-productive. Households already committed to lenders don’t take mortgages.

Economic growth at 1.5%, the slowest in ASEAN. Incomes aren’t rising into the payments.

Tight lending. Banks have been cautious, mortgage rejection is a real factor, and article 14 gave you a sense of how conservative Thai banking has become even on basic account opening.

And the fertility rate is 1.18. This is the one nobody puts in a property report. Condominiums were built on an assumption of household formation — young people leaving home, forming couples, buying units. Thailand is producing fewer young people every year. The demand curve those towers were built against is being withdrawn slowly and permanently.

Six years of inventory is a supply problem today. The demographic arithmetic is the reason it may not resolve the way developers expect.

Bangkok has been here before

Article 05 described Sathorn Unique — the tower halted at roughly 80% complete by the 1997 crash, never occupied, still standing. And the Hopewell pillars, a thousand concrete columns supporting a railway that was never built.

Both are monuments to a Bangkok that built ahead of demand and was caught by a downturn.

I want to be careful here, because the parallel is suggestive rather than predictive. 1997 was a currency and banking crisis of a completely different character. Nothing in the current data resembles that, and I am not forecasting one.

But the pattern of building substantially ahead of demonstrated demand is the same, and this city has a physical record of what that produces. Those buildings are still visible from the train.

What it means if you rent

This is the practical half, and it’s good news for most readers.

It is a renter’s market, and many foreigners don’t realise it. Article 04 noted rents as broadly flat to soft. This is why: 60,000 unsold units in Bangkok means an enormous number of investor-owned condominiums whose owners need a tenant more than the tenant needs that particular unit.

Which means:

Negotiate. Listed rents in a soft market are opening positions, and per article 08, opening positions in this country are meant to be answered with a number.

Ask for improvements. Furniture, appliances, a repaint. In a soft market these are cheaper for a landlord than an empty month.

Longer leases have leverage. A twelve-month commitment is worth something to an owner carrying a mortgage on an empty unit; ask for it to be reflected in the rent.

And look at newer buildings than you’d expect to afford. Recently completed towers with high vacancy are frequently the most negotiable stock in the city.

What it means if you’re buying

Two genuinely useful points and one warning.

The foreign quota is much less binding than usual. Article 16 explained that foreigners can own condominiums freehold within a 49% quota per building. In a tight market that quota fills and you’re pushed to leasehold. With 60,000 unsold units, foreign-quota availability is far better than it has been — which is a real, specific advantage of buying into a soft market.

Negotiating room is genuine. Developers carrying unsold inventory have incentives that did not exist five years ago. Published prices are not the price.

And the warning: everything above describes why it’s a buyer’s market, not whether buying is wise. Six years of inventory, halving take-up rates and a fertility rate of 1.18 are not the conditions in which anyone should assume capital appreciation. If you’re buying somewhere to live, that may be entirely fine. If you’re buying an investment, you are buying into an oversupplied market with a shrinking domestic demographic behind it, and you should want a considerably better argument than “prices always go up.”

I’m not a financial adviser and this isn’t advice. But I’d rather say that plainly than let the practical tips read as encouragement.

Common misconceptions

“Bangkok property always goes up.” There are 350,000 unsold units nationwide and roughly six years of inventory.

“Oversupply means prices will crash.” It means weak pricing power and slow absorption. Thai developers have historically been reluctant to cut headline prices, preferring incentives and freebies — the discount is often in what’s included rather than in the number.

“It’s foreign demand holding it up.” Foreign buyers matter in specific segments and resorts. They are not the volume story in Bangkok.

“Developers will just stop building.” They largely have — launches down to around 15,000 units. The existing stock is the problem.

“This is a normal cycle.” Cyclical factors are real. The demographic factor is not cyclical.