The former Netherlands embassy compound is a freehold plot of 19 rai 3 ngan 26.6 square wah (7,926.6 square wah, about 31,700 square metres) between Wireless Road and Soi Ton Son in Lumphini, Bangkok, which Thai business media reported on 4 and 5 October 2026 had been sold for more than THB 20 billion. No seller, buyer or official record has confirmed the deal, and the embassy’s historic residence on the land was demolished on 2 October.
- 7,926.6
- square wah of freehold19 rai 3 ngan 26.6 sq wah
- THB 20bn+
- the reported priceunconfirmed
- ≈2.52m
- baht per square wahour arithmetic on the reported price
- 1.85m
- baht paid in the late 1940sper the Thai press
What was reported, and what was not
A price, two buyers and the outline of a plan, all from unnamed sources. No contract, transfer or statement has been published.
More than THB 20 billion
The price a property-industry source gave Prachachat Turakij on 5 October. Thansettakij’s report says around THB 20 billion.
The Piyasombatkul family
Named as the buyer by Prachachat, Thansettakij, Bangkok Biz News and The Nation.
With Chali Sophonpanich
Named as the second buyer by Prachachat alone: the president and owner of City Realty.
A transfer of title
On 4 October Prachachat’s source said there was no transfer information yet.
Who gets what
The buyers are said to divide the land by their shares. No split and no buying company has been published.
What will be built
Branded residences and a wellness element, according to one source. Nothing has been filed.
Neither the Dutch government, the embassy nor either buyer had issued a statement as of 7 October 2026. The Nation called it a “potential acquisition”.
The house that came down on 2 October
The compound’s residence, built at the turn of the twentieth century and an award-winning landmark, was demolished three days before the sale was reported.
Built for Dr Alphonse Poix
A French doctor who was a royal physician to King Chulalongkorn (Rama V), according to the Association of Siamese Architects.
Bought by the Netherlands
1948 in the association’s record, 1949 in the Thai and Dutch press. It became the first permanent Dutch embassy in Thailand.
A conservation award
The Association of Siamese Architects gave the house its conservation award. Recognition, not legal protection.
The sale announced
Ambassador Remco van Wijngaarden announced the embassy’s move and the sale of the site.
A new address
The embassy reopened on the 22nd floor of Central Park Offices, 92 Rama IV Road, at Dusit Central Park.
The house demolished
Reported by the Dutch Association in Thailand and Thailandblog.nl. Who ordered it has not been said.
Read the full history
The Association of Siamese Architects records a two-storey colonial house with gable roofs and a three-storey tower, built between 1895 and 1900; some Dutch accounts date it to the 1910s. Dr Poix moved out in 1913, and Prince Boworadet lived there until 1933. After the Second World War the Dutch government bought the house as the ambassador’s residence; the Thai press gives the price as THB 1.85 million. For almost eighty years it was the Netherlands’ address in Bangkok.
The sale was contested before it happened. In June 2025 the Dutch Association in Thailand told the Bangkok Post it feared a clause requiring the house to be demolished before the transfer; the embassy said it had no comment. The embassy has since moved to Dusit Central Park, the Rama IV complex where Embark advises on resale and rental at Dusit Residences, one of our most active buildings.
Who the buyers are
A family that built a plywood fortune and then Langsuan property, and, by one account, the head of City Realty.
The Piyasombatkul family
A fortune with roots in plywood (The Nation). Chatchai Piyasombatkul owns Piyasombat Group and is one of Bangkok’s largest landlords; the family owns Piya Place on Langsuan and on Ton Son and held 33.3% of Nirvana Development in 2023 (Bangkok Post).
Chali Sophonpanich
President of City Realty, founded in 1987 and majority-owned by the Sophonpanich family, and Swire Properties’ partner in City Dynamic, the developer of Upper House Residences Bangkok across the road (Swire, 2025). Named by Prachachat only.
A third name is in the story. BDMS, which is building the WellEra wellness complex and Capella Residences Bangkok at the Sarasin and Langsuan corner, told Thansettakij that an investor had closed the deal and that it plans to co-invest in a mixed-use wellness project there.
Our position, plainly: Embark Estate is an appointed sales agency for Upper House Residences Bangkok and The Wireless Residences by Upper House, the City Dynamic development. Nothing in this article comes from that relationship; every fact is from the reporting listed under Sources.
The price, against the block
About THB 2.52 million per square wah if the reported price is right: below what the market expected, above the British Embassy land in 2018, and short of the city’s record.
| Land | Baht per sq wah | When, and who reported it |
|---|---|---|
| This plot | ≈2.52 million | Oct 2026, our arithmetic on the reported THB 20bn |
| Expected for it | 2.8 to 3.5 million | Oct 2026, Bangkok Biz News |
| British Embassy | ≈2 million | Jan 2018, nearly 23 rai, Bangkok Post |
| Langsuan Road | 3.17 million | Late 2017, sealed bid, 880 sq wah, Bangkok Post |
| Sarasin Road | 3.9 million | Mid-2020, 1 rai, Sansiri, a record then, Matichon |
| Official appraisal | 625,000 | This plot, 2023 to 2026, Prachachat |
A square wah is four square metres. These are land prices, not home prices, and none of them is a forecast for the apartments around the site.
Where it sits
Between Wireless Road and Soi Ton Son, a few minutes’ walk north of Lumphini Park, with the Upper House site across the road.
What stands around it
The two Upper House towers across the road, Capella Residences at the Sarasin corner, NIMIT on Langsuan, The Embassy Wireless, and a ring of finished buildings on Soi Ton Son.
Upper House Residences Bangkok
Completion 2030 · Across Wireless Road at the Sarasin corner, facing Lumphini Park
The Wireless Residences by Upper House
239 units · 71 floors · On the plot beside Upper House Residences
Capella Residences Bangkok
262 units · opening 2030 · Sarasin Road at the Langsuan corner, opposite Lumphini Park
NIMIT Lumphini Park North
187 units · 54 floors · Langsuan, overlooking Lumphini Park
The Embassy Wireless
757 units · 41 floors · Wireless Road
Each has its own page: Upper House Residences Bangkok, The Wireless Residences by Upper House, Capella Residences Bangkok, NIMIT Lumphini Park North and The Embassy Wireless.
Already standing around it.
- The Residences at Sindhorn Kempinski Hotel BangkokCompleted 2019
- Tonson OneCompleted 2023
- MUNIQ LangsuanCompleted 2021
- Sindhorn TONSONCompleted 2018
- Scope LangsuanCompleted 2023
- 98 WirelessCompleted 2017
- Aman Nai Lert ResidencesResale market
- EI8HTEEN SEVENMove-in ready
- ONE89 WirelessCompleted
Homes we hold around the site, today.
- Tonson One: 1 home, ฿150M
- The Residences at Sindhorn Kempinski Hotel Bangkok: 2 homes, from ฿125M
- Scope Langsuan: 3 homes, from ฿118M
- 98 Wireless: 2 homes, from ฿91.5M
- ONE89 Wireless: 5 homes, from ฿77M
- EI8HTEEN SEVEN: 5 homes, from ฿25M
What it could mean for owners nearby
A new neighbour in time, not a new price today. We make no forecast for the homes around it.
A long wait, probably
Prachachat’s source said it remains to be seen whether the buyers build now or hold the land. Nothing has been filed.
The view over the trees
For homes on Soi Ton Son and Wireless Road that look over the compound, that outlook is now development land.
More branded homes, one block
If branded residences follow, the block adds another to Upper House, The Wireless Residences, Capella and Aman Nai Lert.
A marker for land, not homes
The reported price is a reference for the next land deal here. On its own it says nothing about apartment prices.
Read the full explanation
Thansettakij reports that the new Bangkok city plan would allow building up to ten times the plot’s area here, which is why a large freehold parcel on this block draws the bidders it does. The same paper reports BDMS’s interest because its own wellness site on Wireless, Langsuan and Sarasin could connect to it. Neither is a planning application.
For a buyer choosing between buildings on the block today, the useful questions are about the view and the street: which windows look over the compound, which entrance is on Soi Ton Son, and how long a building site next door could last. We answer those flat by flat.
What could change the story
- The deal is unconfirmed. No transfer, no statement from the seller or the buyers, and no buying company named.
- The second buyer rests on one report. Only Prachachat names Chali Sophonpanich.
- The split decides what goes where. The Wireless Road frontage and the Soi Ton Son side are different addresses.
- The house is gone. Whether anything else on the compound is kept has not been said.
- Nothing is filed. No design, no environmental report, no timetable.
Facts as of 7 October 2026, from the reporting listed under Sources. The price per square wah for this plot is our arithmetic. General information, not investment advice.
