10/10
Hotel maravilhoso!!
Istanbul · head to head
The Peninsula Istanbul vs The St. Regis Istanbul
Priced on the same night, 2026-10-10: The St. Regis Istanbul is $580 a night less. They are 3.0 km apart.
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The honest take
The Peninsula Istanbul sits right on the Karakoy waterfront at $1,194 a night, with indoor and outdoor pools, a spa, and Topside Bar looking across to the old city. The St. Regis Istanbul, in Nisantasi, is $341 a night with a 9.2 rating from 590 reviews, butler service, Spago by Wolfgang Puck, and Iridium Spa. Unless the Bosphorus view and pool complex matter enough to justify roughly 3.5x the price, book the St. Regis: it has the deeper review base, a pet allowance and its own bar, and a fraction of the cost.
The look and the feel
The Peninsula Istanbul
The Peninsula occupies a restored 19th-century customs and shipping building on the Karakoy waterfront, one of the group's more architecturally ambitious projects, mixing Ottoman-era stone and brass fittings with the Peninsula brand's usual marble-and-lacquer polish. Rooms and public spaces look straight across the water to Topkapi and the domes of the old city, and Topside Bar on the roof is built around that view at sunset. It draws an older, moneyed international crowd who want ceremony: valet parking, dry cleaning, a 24-hour front desk that anticipates rather than reacts.
Travellers who want the Bosphorus itself as part of the stay, with old-city views and a genuine sense of place in Karakoy.
The St. Regis Istanbul
The St. Regis sits in Nisantasi, Istanbul's glossy shopping district of Armani and Gucci storefronts rather than domes and ferries, and the hotel plays to that address: original art by Turkish artists in every room, a Wolfgang Puck rooftop restaurant, a Petit "O" Bar doing serious cocktails. St. Regis's signature butler service is here around the clock, and Iridium Spa has its own pools. It feels less like old Istanbul and more like an international five-star dropped into the city's fashion quarter, all clean lines and quiet good taste rather than heritage stonework.
Travellers who want five-star service and design at a fraction of the price, and don't mind trading the waterfront for Nisantasi's shopping streets.
At $341, the St. Regis gives up the Peninsula's direct Bosphorus waterfront setting and its indoor/outdoor pool pairing on the water, though its own spa still has pools; what you're really losing is the Karakoy address and view, not amenities on paper.
The Peninsula is the more beautiful building to simply stand in, a converted waterside relic with the old city framed in every window, while the St. Regis is the sharper, more contemporary interior.
The numbers
| The Peninsula Istanbul | The St. Regis Istanbul | |
|---|---|---|
| Price, same night | $940 | $360 |
| Guest rating | 9.4/10 | 9.2/10 |
| Reviews | 54 | 590 |
| Stars | ★★★★★ | ★★★★★ |
| Facilities on our list | 5 | 7 |
| Distance apart | 3.0 km |
What one has that the other doesn't
Only The Peninsula Istanbul has
Nothing on our list that The St. Regis Istanbul lacks.
Only The St. Regis Istanbul has
- Pet
- Bar
What guests actually say
The Peninsula Istanbul
- exceptional, attentive service
- beautiful property and pool area
- staff go above and beyond
- slow breakfast service
- reception area needs updating
The St. Regis Istanbul
The Peninsula's guests come away happier, since they leave detailed accounts of exceptional service and memorable touches, while St. Regis reviewers give only scores with no comments to judge by.
Rooms & rates, 2026-10-10
The Peninsula Istanbul
- Superior Room KingRoom Only$935
- Deluxe Room DoubleRoom Only$990
- Deluxe Room KingRoom Only$990
The St. Regis Istanbul
- Superior RoomRoom Only$360
- Superior RoomBreakfast Included$411
- Deluxe RoomRoom Only$471
In guests' own words
The Peninsula Istanbul
10/10
“Wonderful Stay”
Excellent service and beautiful property.
10/10
The Peninsula Istanbul is exceptional . Highly recommend this phenomenal hotel!
About each
The Peninsula Istanbul
Luxurious Spa and Recreational Amenities Indulge in massages, body treatments, and facials at the spa, and make a splash at the indoor and outdoor pools. Keep fit at the 24-hour fitness center. Fine Dining and Bar Experience Dine at Gallada and Topside Bar, offering exquisite cuisine and drinks. Start your day with a full breakfast and unwind at the…
Check-in — · Check-out 12:00 PM
The St. Regis Istanbul
Luxurious Accommodations and Personalized Service Experience the epitome of luxury at The St. Regis Istanbul, where every room showcases original art pieces by Turkish artists. Enjoy the 24-hour St. Regis Butler Service and complimentary amenities like water, coffee, and tea. Indulge in the rooftop dining at Spago by Wolfgang Puck and unwind at the…
Check-in — · Check-out 12:00 PM
Facilities, in full
The Peninsula Istanbul
- Elevator
- Conference space
- Breakfast available (surcharge)
- Full-service spa
- Smoke-free property
- Pool umbrellas
- Turkish bath/Hammam
- Free valet parking
- Free pool cabanas
- 24-hour fitness facilities
- Shopping mall on site
- Wheelchair-accessible public washroom
- Wheelchair-accessible on-site restaurant
- Food and water bowls
- Change of towels (on request)
- Change of bed sheets (on request)
The St. Regis Istanbul
- Fitness facilities
- WiFi available
- Free WiFi
- Parking
- Free Parking
- Non-smoking rooms
- Air conditioning
- Fitness center
- Swimming pool
- 24-hour front desk
- Restaurant
- Room service
- Business center
- Heating
- Terrace
- Family rooms
Where they are
Karakoy, Kemankes Karamustafapasa Mah., Kemankes Caddesi N 34, Beyoglu, IstanbulMim Kemal Oke Caddesi No:35 Nisantasi
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Rates are live for 2026-10-10, one night, two guests, fetched together so the two are comparable. Facilities and reviews are from each hotel's own listing. The honest take is written by our AI from the listing, the reviews and what is widely known about each hotel. HotelDupe earns a commission if you book, which never changes the verdict. All comparisons