Widen by Sansiri: reviews and facts
What is published about Widen by Sansiri in Thung Mahamek, Sathon, Bangkok, Bangkok, Thailand, what official registers and other sources say, and what changed over time. Facts only, each with its source.
- Developer
- Sansiri fazwaz.com
- Location
- Thung Mahamek, Sathon, Bangkok, Bangkok, Thailand
- Stage
- under construction · active fazwaz.com
- Handover on record
- May 2028 fazwaz.com
- Permit or licence number
- EIA approval กท 1104/794 (11 Apr 2025, report 256709-48, registered as 'HAUS Nang Linchi') sansiri.com
- Deposit protection
- not researched yet
- Page we read
- fazwaz.com
listing page (not the developer's site) fazwaz.com - Last checked
- 5 Nov 2026
- Open data record
- BKK-001
In short
- Widen by Sansiri is listed as under construction in Thung Mahamek, Sathon, Bangkok, Bangkok, Thailand, by Sansiri. fazwaz.com
- The handover date on record is May 2028. fazwaz.com
- A permit or licence number is published. sansiri.com
- Of 10 developer claims we checked, 5 are confirmed by a register or an independent source, 4 are not yet verified and 1 are contradicted by another source. Open data record
What is promised
As published by the developer or on listing pages, in the wording of the source.
- Price from: THB 8,590,000 - 49,900,000 fazwaz.com
- Units: 215 fazwaz.com
- Unit sizes: 45.25 - 209.75 m² fazwaz.com
- Unit types: 1BR, 2BR, 2BR plus, 3BR, Signature Suite fazwaz.com
- Ownership: Freehold condominium unit within the 49% foreign quota fazwaz.com
- Brand or operator: Sansiri fazwaz.com
- Permit authority: Bangkok Metropolitan Administration EIA committee (กท) and Sathon district office (building permit) fazwaz.com
- Construction start: July 2025 fazwaz.com
- Handover promised: Q1 2028 fazwaz.com
- Sansiri project page: 1 building, 34 floors, 215 units, land about 2 rai 90 sq.wah, 105% parking, price from THB 8.59M (promotion) sansiri.com
- Sansiri project progress page: update 8 Oct 2026, EIA approved, construction permit issued, expected completion February 2028 sansiri.com
- joint venture with Tokyu Development (Thailand) sansiri.com
- unit types 1BR 45.25 m2 to 3BR 209.75 m2 (agent) sansiri.com
- portal: foreign quota units, prices THB 9.3M to 32.9M sansiri.com
Delivery and delay record
Every dated promise we found, how it changed and whether the date has passed. Status rules: promise tracker.
- Handover or completion: May 2028 date still ahead
developer or listing page, copy of 5 Nov 2026 (SHA-256 df8a3b9ee1b4e9c9) · Earlier dates on record: February 2028 (1 Nov 2026) fazwaz.com
Permits and licences
- Number published: EIA approval กท 1104/794 (11 Apr 2025, report 256709-48, registered as 'HAUS Nang Linchi'). sansiri.com
- Official register check: Thailand ONEP EIA register, environmental approval: approved, approval กท 1104/794 dated 11/04/2568 (Thai calendar) (checked 3 Nov 2026). kolaboro.com/registers
Live check in the official registers
Queries the official registers we can reach for this country now and shows what each returns. Each answer is hashed (SHA-256); nothing is invented, a register with no data says so.
The six buyer checks
Public means the information is published. The level says who confirms it. Method: how we score.
| Check | Public | Who confirms it | What we found |
|---|---|---|---|
| Permit or licence number | yes | confirmed in an official register | |
| Deposit protection | no | not published | No escrow, trust account, bank guarantee or deposit insurance published sansiri.com |
| Construction progress | yes | contradicted by another source | Sansiri project progress page updated 8 Oct 2026 (no percentage in page text) with expected completion February 2028; ONEP status still reads 'not yet constructed', which conflicts with the developer's statement that the construction permit is issued. Construction start July 2025 per agent Richmonts sansiri.com |
| Floor or site plans | yes | stated only by the developer | Unit types and sizes published (agent and portal floor plans); Sansiri page shows project details sansiri.com |
| Developer track record | yes | confirmed in an official register | Sansiri PCL is SET-listed; ONEP lists earlier Siri TK joint-venture condos such as Taka Haus (report 11128) and The Base Sukhumvit 50 (report 11990) with condominium juristic persons as owners sansiri.com |
| No guaranteed returns | yes | stated only by the developer | No guaranteed return language sansiri.com |
Developer claims we tested
| Claim (source wording) | Result | Checked against | Source |
|---|---|---|---|
| EIA approved | verified | registry | eia.onep.go.th |
| Project company Siri TK Seven Co., Ltd. registered and active | verified | registry | eia.onep.go.th |
| Construction permit issued and construction under way | contradicted | registry | eia.onep.go.th |
| Expected completion February 2028 | not verified yet | sansiri.com | |
| 215 units in a 34-storey tower | verified | independent | homeday.co.th |
| Joint venture with Tokyu Development (Thailand) | verified | independent | en.moneyandbanking.co.th |
| Prices from THB 8.59M (promotion; launch price THB 8.9M) | not verified yet | sansiri.com | |
| Earlier Sansiri joint-venture condos completed and registered | verified | registry | eia.onep.go.th |
| Foreign quota units available | not verified yet | fazwaz.com | |
| Deposits protected by escrow | not verified yet | sansiri.com |
What changed, with dates
- No dated change recorded yet.
- Fingerprint of the developer page text on 5 Nov 2026: SHA-256
df8a3b9ee1b4e9c9.... Anyone can check it on kolaboro.com/verify. kolaboro.com/verify
Public reports
What public sources report, with the link. We list reports; we do not judge the developer.
- No reports of disputes, regulator action, stoppages or financial difficulty found in the sources we read.
About the developer
- Founded: 1984 fazwaz.com
- Head office: Bangkok, Thailand fazwaz.com
- Legal entity: Siri TK Seven Co., Ltd., 0105566076792 (registered 11 Apr 2023), Sansiri PCL joint venture with Tokyu Development (Thailand) fazwaz.com
- Listed or audited: Sansiri PCL listed on the Stock Exchange of Thailand (SIRI) fazwaz.com
- Sansiri PCL is SET-listed; ONEP lists earlier Siri TK joint-venture condos such as Taka Haus (report 11128) and The Base Sukhumvit 50 (report 11990) with condominium juristic persons as owners fazwaz.com
Other projects by Sansiri that we track
- CANVAZ Palette Cherngtalay Phuket
- BRISA Patong by Sansiri Phuket
Similar projects
- STILL Sukhumvit 20 Bangkok · under construction
- Chapter Charoenkrung-Riverside Bangkok · under construction
- XELF by Sansiri Bangkok · under construction
- MAVISTA Phrom Phong Bangkok · off-plan
- InterContinental Residences Bangkok Asoke Bangkok · off-plan
Market context: Bangkok
- We track 8 projects in Bangkok. 38% publish a permit or licence number and 0% state deposit protection. kolaboro.com/m
Buyer reviews
There are no verified buyer reviews of Widen by Sansiri yet. We publish a review only from a buyer who proves the purchase (fingerprint of the contract or receipt, signed with a passkey) and only after a moderator has read it.
Reviews waiting for moderation are not shown.
Right of reply
Are you the developer? Send documents and we add your reply to this page. Found a wrong fact? Tell us and we correct it with a dated note.
Reply as the developer Report a correction Questions to ask the developer
Before you pay
Paste the project link for a free live check of what official registers say. For a full desk review and a site visit by a local agent, order the pre-purchase check.
Questions buyers ask
Is Widen by Sansiri legit?
Kolaboro does not label projects or developers. What the public record shows: A permit or licence number is published. Of 10 developer claims we checked, 5 are confirmed by a register or an independent source, 4 are not yet verified and 1 are contradicted by another source. The handover date on record is May 2028. No reports of disputes, regulator action, stoppages or financial difficulty found in the sources we read. Check the sources on this page and ask the developer for documents before paying.
When will Widen by Sansiri be delivered?
The handover date on record is May 2028.
Who is the developer of Widen by Sansiri?
Sansiri, according to the sources listed on this page.
Does Widen by Sansiri have a permit or licence?
A permit or licence is confirmed in an official register (see Permits and licences).
Are there reviews of Widen by Sansiri?
There are no verified buyer reviews yet. Buyers who prove their purchase can submit one; it is published after moderation.
Sources
Every fact on this page links to its source. Pages we read are fingerprinted and kept by date.
- fazwaz.com https://www.fazwaz.com/property-sales/3-bedroom-condo-for-sale-at-widen-by-sansiri-in-thun...
- sansiri.com https://www.sansiri.com/condominium/widen-by-sansiri/th/
- eia.onep.go.th https://eia.onep.go.th/eia/detail?id=14204
- eia.onep.go.th https://eia.onep.go.th/eia/owner-detail?owner_id=10556
- eia.onep.go.th https://eia.onep.go.th/services/web/open-api/eia-list
- en.moneyandbanking.co.th https://en.moneyandbanking.co.th/2025/198411/
- homeday.co.th https://homeday.co.th/articles/news/sansiri-20250818
- tanacityhome.tooktee.com https://tanacityhome.tooktee.com/en/project/15399/?l=en
- richmonts.com https://www.richmonts.com/our-properties/thailand/new-developments/widen-by-sansiri
- sansiri.com https://www.sansiri.com/projectprogress/en/
- thaipr.net https://www.thaipr.net/estate/3646317
Last checked 5 Nov 2026. How we collect data: data policy. Facts quoted from sources are shown in the language of the source.