Siam Kempinski Hotel Bangkok
by the TopOfHotel team
The pull here is the swim-up Deluxe Lagoon room — you step off your terrace straight into a 50-metre garden pool, 200 metres from Bangkok's best mall.
The pull here is the swim-up Deluxe Lagoon room — you step off your terrace straight into a 50-metre garden pool, 200 metres from Bangkok's best mall.
In-Depth Review
Rooms and decor
Book the 56 sqm Deluxe Lagoon room that Kempinski is known for, and the trick reveals itself the moment you open the terrace door: you step straight down into the pool. The water sits cool and clear against sunlight filtering through tall trees. Inside there is a generous King bed with dense cotton sheets, a marble bathroom with a tub set apart from the shower, Bose sound, and a minibar stocked so thoroughly it runs to Thai sweets. It reads luxurious without shouting — the kind of room guests settle into and decide not to leave all day.
Food and amenities
The pool is the real headline. It is built as a winding lagoon over 50 metres long, threaded through a shaded tropical garden, with a pool bar for an afternoon mocktail, cabanas for families and Bali-style daybeds for couples. The spa is run by the Paris brand Anne Semonin; a 60-minute Thai massage lands around $80 with service, which is fair for the quality on offer. Add a fitness centre and several restaurants and you rarely need a reason to leave the grounds.
Location and getting there
The detail guests rave about most is the ground-floor link that walks you straight into Siam Paragon without meeting sun or rain. Have lunch in the G-floor food hall, catch an evening film at the IMAX, then stop at Gourmet Market for durian on the way back — the whole loop is under a five-minute walk. CentralWorld sits about 600 metres across the way, and the Erawan Shrine is a 10-minute stroll. BTS Siam, the network's main interchange, is roughly 200 metres off, two stops from the airport rail link.
Things to know before booking
This is the steepest opening rate on the list, starting around $230 a night and climbing past $700 for the larger suites — a real stretch on a budget. The streets around Siam and Ratchaprasong jam solid at rush hour, so lean on the BTS and skip taxis from about 5pm. Rooms also sell out fast over Songkran, New Year and the November-to-February high season, so book several weeks ahead for those dates.
Our take
We call Siam Kempinski the number-one luxury stay in the district without hesitation. It suits couples after a city-centre honeymoon, families settling in for a longer trip, and senior business travellers who want privacy alongside shopping a minute from the lobby — the most polished way to open a stay in Siam.
Score Breakdown
Assessed by our editorial team from data and real guest reviews
The Honest Verdict — pros & what to know
- A genuine 5-star from the Kempinski group and the most recognised luxury name in the Siam district, backed by a 2016 Top Choice Award and real-guest scores around 9.4 to 9.6.
- Shares a wall with Siam Paragon — a ground-floor link drops you into the mall, food hall and IMAX without stepping outside into sun or rain.
- The 50-metre lagoon pool winds through a real tropical garden, with a pool bar, cabanas and Bali-style daybeds, and the 56 sqm Deluxe Lagoon rooms open straight onto the water.
- About 200 metres to BTS Siam, the busiest interchange on the network, putting most of central Bangkok within a short, transfer-free ride.
- Rooms run large with King beds, marble bathrooms with a separate tub and shower, Bose sound and a minibar stocked down to Thai sweets; the Anne Semonin spa runs a 60-minute Thai massage for around $80.
- The entry rate is the steepest on this list, opening around $230 a night and climbing past $700 for the larger suites, so it is a stretch for budget travellers.
- The roads around Siam and Ratchaprasong jam solid at morning and evening rush hour; the BTS sidesteps it, but a taxi at 6pm will not.
- Rooms sell out fast over Songkran, New Year and the high-season months from November to February, so you need to book several weeks ahead for those dates.
Who It’s For
Match Score by travel style
Amenities
Location & Nearby Spots
Insider Tips
- Use the ground-floor link straight into Siam Paragon — you never have to step onto the street to reach the food hall or cinema.
- Ask for a room facing the pool for a view over the tropical garden rather than the city.
- Skip taxis at rush hour and walk the 200 metres to BTS Siam; the roads outside crawl from about 5pm.