Bangkok's oversupply is real but not uniform. This report compiles unsold-inventory, absorption and vacancy data by zone — CBD vs mid-market transit corridors vs suburban — developer discounting and incentives, and a Q1 2026 luxury-segment update, with full source citations.
32%6-month absorption rate, 2024Down from 45% in 2022 (REIC, Dec 2024)
18–22%CBD rental vacancy (Sukhumvit/Sathorn)vs 8–10% healthy benchmark (Colliers, Jan 2025)
-1.3% q-o-qLuxury-segment capital valuesQ1 2026, inventory-clearance pressure (JLL)
The one-line version
Bangkok carried roughly 58,400 unsold condo units as of Q4 2024 (REIC), with six-month absorption on new launches down to 32% from 45% two years earlier — but the pain is concentrated in suburban transit corridors and mid-market projects, not the CBD or luxury segment. Developers are responding with discounts (4–6% CBD, 8–10% suburban) and incentives rather than uniform price crashes, and a Q1 2026 update shows the luxury segment specifically recovering demand through targeted discounting in Thonglor and Phrom Phong.
01
Methodology — how this report was built
This report compiles figures already published by Thailand's official Real Estate Information Center (REIC) and independent research from CBRE Thailand, Colliers Thailand, Knight Frank and JLL, cross-referenced against each other rather than treated as a single blended number. It is not BAANLYY's own transaction data.
Core inventory, absorption and zone-level figures (REIC, CBRE Thailand, Colliers Thailand, Knight Frank) reflect Q4 2024–January 2025 reporting — the most recent period with consistent, named, zone-level source data we could verify. Where a figure is more recent (the JLL Q1 2026 luxury-segment update), we label it explicitly and keep it separate rather than blending vintages.
The JLL data covers Bangkok's high-end/luxury residential segment specifically (its own defined scope, ~73,885 units), not the broader all-segment market REIC and CBRE report on — the two are complementary, not directly comparable line items.
We saw one additional secondary reference to a much larger (~207,000–220,000 unit) "unsold inventory" figure elsewhere in market commentary, but could not trace it to a clearly named primary source or confirm its scope (citywide vs regional, completed vs including under-construction). We excluded that figure rather than report an unverified number — see the note in Section 02.
All figures are indicative market-research data current as of their stated reporting period and change over time; treat them as directional context, not a substitute for a current agent or developer sales-office inquiry on a specific project.
02
The oversupply, in numbers
REIC reported approximately 58,400 unsold Bangkok condominium units as of Q4 2024, up 12% year-on-year, against roughly 87,000 unsold units nationwide — Bangkok alone accounts for about two-thirds of Thailand's condo glut. The Bank of Thailand projected a further 42,000 new units completing in the first half of 2025, adding to supply before absorption could catch up.
Demand-side, REIC's absorption data (new-launch units sold within six months) fell to an average of 32% in 2024, down from 45% in 2022 — a meaningful two-year decline that predates and helps explain the pricing pressure described in Section 03. Note: we intentionally did not use a separately-seen ~207,000–220,000-unit "unsold inventory" figure circulating in some market commentary, since we could not confirm its primary source or exact scope against REIC's more clearly attributed 58,400/87,000 figures — see Methodology.
03
Zone by zone: where the risk actually sits
The oversupply is heavily concentrated, not evenly spread across Bangkok:
Zone
Rental vacancy
Asking price/sqm
YoY price change
Gross yield
6-mo absorption
CBD (Sukhumvit / Silom)
18–22%
฿180,000–250,000/sqm
-4% to -6%
3.5–4.5%
35–40%
Mid-market transit corridors
15–17%
฿100,000–140,000/sqm
-6% to -8%
4.0–5.0%
28–32%
Suburban (Bang Sue, Lat Phrao)
20–25%
฿80,000–110,000/sqm
-8% to -10%
3.0–4.0%
20–28%
Snapshot compiled from REIC, CBRE Thailand, Colliers Thailand and Knight Frank data, Q4 2024–Jan 2025. See Methodology and Sources for exact attribution per metric.
Highest-risk zones: Bang Sue, Chatuchak and Lat Phrao — where 15,000+ units launched around 2018–2020 new-transit-line announcements, with absorption struggling as commuter demand built more slowly than developers projected. Outer Sukhumvit (On Nut, Bearing, Samrong) mid-market units at ฿80,000–120,000/sqm face fierce competition, with many projects offering 2–3 years of free common fees or furniture packages. Phra Khanong and Bang Na saw 8,000+ new units complete in 2023–2024 alone, overwhelming local absorption.
Relatively stable zones: Central CBD (Phloen Chit, Ratchadamri, Silom) luxury stock (฿200,000+/sqm) has shown resilience among high-net-worth Thai buyers and returning expats. Thonglor and Ekkamai's lifestyle appeal keeps that micro-market comparatively liquid, and riverside developments near ICONSIAM report 85%+ occupancy on tourist- and expat-driven rental demand.
Developers carrying unsold, completed inventory are leaning on discounts and incentives rather than headline price crashes. Reported average asking-price corrections ran 4–6% in prime CBD zones and 8–10% in mid-market/suburban projects through 2024 (CBRE Thailand) — though actual transaction prices often run lower still once undisclosed incentives are factored in.
Common incentives: 2–3 years of free common-area fees, furniture packages, deferred down payments, and guaranteed rental-return programs (often 4–5% annually for the first two years) in oversupplied projects.
Time on market: resale units are averaging 180–240 days on market, up from 90–120 days in 2021 — a clear signal of the buyer's-market conditions in mid-market and suburban segments specifically.
Rental-side concessions: one free month on a 12-month lease has become standard in competitive submarkets, with two free months not uncommon in the most oversupplied pockets; CBD gross rental yields compressed to 3.5–4.5% in 2024 from 5–6% in 2019 (Knight Frank).
Developer strategy shift: new-launch volume has slowed as developers prioritize established-demand areas and diversify into alternative sectors, rather than repeat the speculative land-banking pattern of 2017–2020.
05
What's driving the oversupply
Several forces converged rather than one single cause: a post-pandemic completion surge (projects launched in 2019–2020 finally reaching handover in 2023–2024, just as demand had cooled), a sharp pullback in Chinese buyer activity (down an estimated 40% between 2020 and 2024 per CBRE, after representing 25–30% of purchases in 2018–2019), tighter mortgage conditions (Bank of Thailand LTV caps introduced in 2019, plus policy rates rising from 0.5% in early 2022 to 2.5% by mid-2023), and an aggressive 2017–2019 off-plan launch cycle that land-banked sites along new transit lines ahead of proven ridership demand.
06
Q1 2026 update: the luxury segment is recovering, unevenly
JLL's Q1 2026 Bangkok residential report — covering the high-end/luxury segment specifically (~73,885 units total stock) — found demand had "bottomed out and gradually recovered," driven mainly by price discounts on existing projects in Thonglor and Phrom Phong, alongside renewed foreign-buyer interest with some new launches nearing their foreign-ownership quota. Capital values were still down 1.3% quarter-on-quarter as inventory-clearance efforts continued to pressure both primary and resale pricing, but rental demand stayed resilient — luxury rents rose 5.1% year-on-year, pushing yields up slightly to 5.4%. Developers have taken a cautious stance on new 2026 launches, prioritizing areas with established demand. This luxury-segment recovery is a genuinely different signal from the broader mid-market and suburban pressure described above — treat them as two separate stories about the same city, not one uniform trend.
Living Summary
Bangkok Condo Oversupply — Living Summary
Editorial analysis compiled and periodically refreshed by BAANLYY’s research team — not a live data feed.
Is Bangkok's condo oversupply getting better or worse?
Both, depending on segment. Broad-market absorption (REIC, 2024 data) has been declining for two straight years, and unsold inventory grew 12% y-o-y through Q4 2024. But the luxury segment specifically showed a demand recovery in Q1 2026 (JLL), driven by developers discounting in the most in-demand micro-locations rather than a market-wide turnaround.
Which zones carry the most risk right now?
Suburban transit corridors that were land-banked ahead of new BTS/MRT lines (Bang Sue, Chatuchak, Lat Phrao) and outer Sukhumvit/Bang Na mid-market projects, where absorption (20–32%) and vacancy (15–25%) are both running well outside healthy ranges. Central CBD and established lifestyle districts (Thonglor, Ekkamai, riverside) have held up meaningfully better.
What would signal the market is genuinely turning?
A sustained rise in six-month absorption back above 40% citywide (versus 32% in 2024), a slowdown in the pace of unsold-inventory growth, and price stabilization in mid-market and suburban zones specifically — not just in the CBD or luxury segment, where the strongest signs of recovery have shown up first.
Analysis last reviewed July 2026.
07
Frequently asked
How many unsold condo units does Bangkok have?Thailand's Real Estate Information Center (REIC) reported approximately 58,400 unsold Bangkok condominium units as of Q4 2024, up 12% year-on-year, out of roughly 87,000 unsold units nationwide — meaning Bangkok accounts for about two-thirds of Thailand's condo glut. The Bank of Thailand projected a further 42,000 new units completing in the first half of 2025, adding to the pipeline before absorption catches up.
Is the oversupply the same everywhere in Bangkok?No — it's heavily concentrated in suburban transit corridors and mid-market segments, not evenly spread. Bang Sue, Chatuchak and Lat Phrao (where 15,000+ units launched around 2018–2020 transit announcements) and Phra Khanong/Bang Na (8,000+ units completed 2023–2024) are the highest-risk zones. Central CBD districts like Phloen Chit, Ratchadamri and Silom, plus lifestyle areas like Thonglor and Ekkamai, have shown far more resilience, particularly in the luxury segment.
What is 'absorption rate' and why does it matter more than vacancy?Absorption rate measures the share of a new launch's units sold within a set window (commonly six months) — it signals real-time demand for new supply, while vacancy measures how much of the existing, completed stock sits empty. Bangkok's six-month absorption averaged just 32% in 2024, down from 45% in 2022 (REIC), while suburban zones saw absorption as low as 20–28% versus 35–40% in the CBD. A project with sub-30% six-month absorption is a red flag for price cuts or delayed construction.
How are developers responding to the oversupply?With discounts, payment-term flexibility and incentives rather than headline list-price cuts alone. Reported average discounting runs 4–6% off list in prime CBD zones and 8–10% in oversupplied mid-market/suburban projects (CBRE Thailand), often layered with 2–3 years of free common fees, furniture packages, deferred down payments or guaranteed rental-return programs. Developers have also pulled back on new 2026 launches and are prioritizing established-demand areas over speculative transit-corridor land banked in 2017–2020.
Is the Bangkok luxury condo segment affected the same way?Not identically. JLL's Q1 2026 Bangkok residential report (covering the high-end/luxury segment specifically, ~73,885 units total stock) found capital values down 1.3% quarter-on-quarter from continued inventory-clearance pressure, but rental demand staying resilient — luxury rents actually rose 5.1% year-on-year with yields ticking up to 5.4%. Demand recovery was concentrated in discounted units in Thonglor and Phrom Phong, alongside renewed foreign-buyer interest, some projects nearing their foreign-ownership quota.
Indicative, educational market-research data only — not a valuation, appraisal, or investment, legal or tax advice. Figures are compiled from third-party published reports current as of their stated periods (mainly Q4 2024–Q1 2026) and change over time; actual conditions for any specific building or project vary. Confirm current figures with a licensed appraiser, agent or lawyer before relying on them for a transaction. BAANLYY never takes paid placement in this report.
Primary and official sources are cited above. Government rules, fees and procedures in Thailand change over time and vary by office; always confirm current requirements with the relevant authority before relying on them. BAANLYY never takes paid placement in editorial content.