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Siamese Sukhumvit 48

Siamese Sukhumvit 48 is a completed condominium on the Sukhumvit 48 corridor in Phra Khanong, Khlong Toei. The first thing a buyer has to untangle is the naming.

Bangkok

Overview of Siamese Sukhumvit 48 in Bangkok

From 4,900,000 THBPer broker listings. Current price list, layouts and availability — discussed one-to-one with a project specialist

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What it is
Condominium
Where
1448 Soi Sukhumvit 48, Sukhumvit Road, Phra Khanong, Khlong Toei, Bangkok 10110, Thailand · Bangkok
Stage
Completed
Price
From ฿4,900,000guide price, final by unit
Transparency
10 facts confirmed · 7 to verify
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Why this project is worth a look

Walkable On Nut access

The project sits within a practical walk of On Nut BTS. The developer quotes 350 metres and portal mapping is closer to about half a kilometre, but the key point is that residents are not dependent on a feeder ride from deep inside a side street.

Double-volume living

Ceilings around 4.4 metres and the prevalence of duplex-style resale units give the building a genuinely different spatial character. Buyers should judge the stair, mezzanine and usable upper level in person rather than relying on headline floor area alone.

A building you can inspect

This is an operating, occupied project with a mature resale market. Views, traffic noise, lift performance, common-area condition and the quality of a specific fit-out can all be checked before purchase rather than inferred from pre-sale materials.

Live hotel component

Ramada Plaza by Wyndham Bangkok Sukhumvit 48 operates within the same complex. That supports the branded-residence story, while also making it important to separate hotel amenities from the rights and recurring costs attached to a condominium unit.

Visible resale liquidity

There is a broad pool of sale and rental listings in 2026, including different sizes, floors and quota types. The depth of stock helps price comparison, but it also exposes how much unit-specific details can change the value proposition.

About the project

Siamese Sukhumvit 48 is a completed condominium on the Sukhumvit 48 corridor in Phra Khanong, Khlong Toei. The first thing a buyer has to untangle is the naming. Older market records still use Siamese Sukhumvit 48, Siamese Asset now lists Ramada Plaza Residence among its high-rise projects, and a Ramada Plaza by Wyndham hotel operates within the same complex. These names point back to the same development rather than separate condominium schemes. That matters when researching stock: resale listings, historic floor plans and current hotel information are split across the old Siamese name and the newer Ramada branding. The residential component is consistently reported at 339 units, with a five-storey low-rise building and a 39-storey tower.

The tower is unusual for Bangkok because its identity is tied to tall double-volume interiors as much as to the address. The project website states a building height of 196 metres and promotes roughly 4.4-metre ceilings. Current resale stock shows many duplex or loft-style layouts, including one-bedroom units around the low-40-square-metre range and two-bedroom units around 70–82 square metres. The original published unit schedule is smaller: 24–35 square metres for one-bedroom homes, 49–61 square metres for two-bedroom homes and 112–198 square metres for penthouses. Those two sets of numbers should not be blended into one neat range. A buyer should check the title-deed area, approved plan and usable mezzanine arrangement for the exact unit, because the marketing label alone does not explain how the space is measured.

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On Nut BTS is the practical anchor for the location. Siamese's project site cites 350 metres, while major property portals tend to place the walking distance at roughly half a kilometre. Either way, the development sits within a realistic walk of the station rather than relying on a shuttle from a deep soi. Daily retail is also close to the station area, including Big C Extra On Nut, Lotus's and Century The Movie Plaza. For someone working along the Sukhumvit line, the value of the location is straightforward: Phra Khanong, Ekkamai and Thong Lo are only a few stops away, while expressway access gives the project a second transport option when rail is not convenient.

This is no longer an off-plan decision. The building is operational, occupied and supported by an active resale and rental market. The exact completion year is less tidy. PropertyHub records 2019, FazWaz records June 2020, and the developer's own project website showed 100% overall progress as of 31 March 2021. The disagreement is worth preserving rather than forcing one date into a false certainty. For a purchase in 2026, the legally relevant dates should come from the condominium registration and the specific unit documentation; the practical point is that buyers can inspect the completed building and compare real units before committing.

The hotel-residence relationship is another area where the project deserves a closer read. Wyndham currently operates Ramada Plaza by Wyndham Bangkok Sukhumvit 48 at 1448 Soi Sukhumvit 48 and advertises hotel amenities such as a rooftop pool, gym, sauna, restaurant and concierge. The condominium profile separately lists resident facilities including a communal pool, gym, library or reading room, rooftop garden, lobby, parking, key-card access, CCTV and 24-hour security. The presence of a hotel in the same complex is real; what should not be assumed is that every hotel service is automatically bundled into condominium ownership. Owners need the current juristic-person rules and service schedule to see what is shared, what is separate and what carries an extra charge.

The resale market provides useful price discovery. Around the end of September and beginning of October 2026, the project had numerous sale listings and a much larger rental pool. A lower asking-price anchor sits around THB 4.9 million for a one-bedroom unit, while larger duplexes and upper-floor homes rise sharply from there. Live listings also show both foreign-quota and Thai-quota units. That distinction can matter more to a foreign buyer than a small difference in asking price: a Thai-quota unit cannot simply be treated as foreign freehold because the buyer is willing to pay for it.

Foreign ownership follows Thailand's condominium quota rules. A non-Thai buyer can hold a condominium unit freehold in their own name only while foreign ownership remains within the statutory 49% cap for the condominium. The exact availability is therefore a building-and-unit question at the time of transfer, not a permanent characteristic of the project name. Current listings demonstrate that both quota types circulate in the market, which is a useful warning against assuming that every advertised unit is equally transferable to a foreign purchaser.

What makes Siamese Sukhumvit 48 worth studying is that it can now be judged as an operating asset rather than a rendering. A buyer can visit the exact floor, test the walk to the BTS, hear traffic levels, inspect the duplex stairs and ceiling height, see how common areas have aged and compare asking prices with occupied rental units. The trade-off is that this is a more complex product than a conventional single-use condominium. Naming, hotel operations, duplex area descriptions and quota status all require unit-level checking. The strongest way to approach the project is therefore to compare a small shortlist of actual units side by side, with title documents and current condominium rules in hand.

Ownership format

Foreign freehold is possible within the statutory foreign quota, capped at 49% of the aggregate saleable condominium area. Foreign-quota availability is unit-specific and should be confirmed with the condominium juristic person before transfer.

Unit types & sizes

1 bedroom
24–35 sqm
1 bathroom

The published base range for the original project typology. Current resale stock also includes larger one-bedroom duplex units, so the title area and approved plan matter more than the bedroom label alone.

2 bedrooms
49–61 sqm

The original published schedule places two-bedroom homes in this range, while 2026 resale listings frequently show larger duplex configurations. Layout structure is therefore as important as the headline size.

Penthouse
112–198 sqm

The largest published category in the original unit mix. Current resale inventory includes homes around 200 sqm and some three-bedroom configurations, so the exact legal plan should be checked unit by unit.

The published project schedule shows 24–35 sqm for one-bedroom homes, 49–61 sqm for two-bedroom homes and 112–198 sqm for penthouses. Live resale inventory also shows roughly 39.65–44.49 sqm one-bedroom units, about 69–82 sqm two-bedroom duplexes and homes around 200 sqm. These figures should not be collapsed into one range; the title-deed area, approved plan and treatment of the upper level need to be checked for the specific unit. Prices are the lowest the brokerage boards publish, not the developer’s price list — the price and availability of a specific unit are something we go through with you personally.

Facilities

13 amenities

Leisure

  • communal pool
  • sauna
  • rooftop garden
  • lounge areas

Fitness

  • gym

Work and shared spaces

  • library and reading room
  • meeting and shared work spaces
  • lobby

Security and access

  • 24-hour security
  • CCTV
  • key-card access

Transport

  • car parking
  • EV charging

How the tower is arranged

  1. 1st floorCommunal pool
  2. 39th floorGym and library / reading room
  3. RooftopCommunal garden

Location

  • Sukhumvit 48 in Phra Khanong, Khlong Toei, directly off the main Sukhumvit Road corridor.
  • On Nut BTS is within walking distance; published measurements range from roughly 350 to 520 metres depending on source and route.
  • Big C Extra On Nut, Lotus's and Century The Movie Plaza cluster around the On Nut station area for daily shopping and services.
  • Chalong Rat and Chalerm Maha Nakhon expressway access gives the project a practical road alternative to the BTS.

Address / landmark1448 Soi Sukhumvit 48, Sukhumvit Road, Phra Khanong, Khlong Toei, Bangkok 10110, Thailand

The map loads from OpenStreetMap on request.

The circle shows the project’s approximate location; we confirm the exact address and the plot boundaries when you get in touch. © OpenStreetMap contributors.

Price & purchase terms

  • Current price: From THB 4.9M in current resale listings checked on 2 October 2026. This is a lower secondary-market anchor rather than a developer price; availability, condition, ownership quota and final terms need to be confirmed for the specific unit.

We show the lowest of the prices the brokerage boards publish: their figures for the same unit differ by a few per cent, and none of them is the developer’s price list. We ask the developer for the current price, availability and payment terms on the unit you are looking at, and go through them with you personally.

Completed

Project stage — what we know

Completed. Not a render.

Completion year to be confirmed, but the building is up — view it in person.

  1. Planned
  2. Building
  3. Done
Checked by NovAsia

What is documented on this page

Facts published here and the points to confirm before booking.

10documented key facts
7to confirm before bookingConfirm these points before reserving a unit.

The page documents 10 key facts; 7 items should be confirmed before booking.

This is a record of published facts, not a quality rating.

At a glance

DeveloperSiamese Asset Public Company Limited
LocationBangkok
CategoryCondominium
SubtypeHigh-rise condominium with branded residence and hotel component
ConstructionCompleted
Floors39
Units339
Height196 m
Honest fit

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Best for: Buyers who want the Sukhumvit corridor and a genuinely walkable connection to On Nut BTS without paying only for a Thong Lo or Phrom Phong address.; People who value double-volume or duplex living and are willing to judge the stair, mezzanine and usable layout rather than comparing units by square metres alone.; Resale buyers who prefer inspecting a completed building, several actual units and the condition of common areas before committing.; Foreign purchasers when the selected unit has confirmed foreign-quota availability and can be transferred as foreign freehold.; Owners who value a deep rental and resale pool for comparison, while underwriting the economics from the specific unit rather than a promised project-wide yield.; may not suit: Buyers who want a conventional single-level condominium where bedroom count and advertised area are usually enough to understand the layout.; Anyone assuming the Ramada branding automatically gives a condominium owner unrestricted hotel services without separate rules, charges or eligibility.; Foreign buyers unwilling to verify quota before paying a reservation or deposit; current market stock includes both foreign-quota and Thai-quota units.; Buyers who require perfectly uniform public project data, as open sources disagree on completion timing and some technical details..

What we confirm before booking

A short, project-specific list. We request these from the developer and go through them with you before any payment.

  • which units are free, and on which floors
  • the legal entity in the SPA and the payee’s bank details
  • the title format and what is registered against the unit
  • the contractual area of the chosen unit, and which basis it is measured on

Disputed and unknown information

This keeps the open points in one place. A missing or disputed fact is not treated as a conclusion.

  • Completion timing conflicts across sources: PropertyHub says 2019, FazWaz says June 2020, while the official project site only confirms 100% overall progress as of 31 March 2021. The condominium registration documents should control for a transaction.
  • Published unit ranges of 24–35 / 49–61 / 112–198 sqm do not match part of the live duplex resale stock, where one- and two-bedroom homes are materially larger. The title area, approved plan and mezzanine treatment need unit-level confirmation.
  • The official project site advertises concierge, room service and a private-assistant concept, but public sources do not define which hotel-style services are included for condominium owners or how they are charged in 2026.

FAQ

What does a unit cost in Siamese Sukhumvit 48?

From 4,900,000 THB — per broker listings. Prices are the lowest the brokerage boards publish, not the developer’s price list — the price and availability of a specific unit are something we go through with you personally.

Sources and documents

Official developer and public records used for this page. We publish no outbound links.

  1. Government / official registry — Document: public/visit-thailand-detail/010_014 checked 02.10.2026

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Mark Erometskiy — Thailand property expert

Mark Erometskiy

Thailand property expert (Pattaya, Phuket and Bangkok), co-founder of Bomi Home. Will help with the unit, ownership, stage and terms before you decide.

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Informational, not a public offer or personal investment, legal or tax advice. Price, availability, payment terms and guaranteed-return/buyback conditions are confirmed per unit with the developer and their contract.