"This new boutique hotel in Syros, a dreamy island in the Cyclades, is where you want to stay."
Annette L from United Kingdom
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"Great history behind the building itself and a really premium finish within the reception lobby and bar area."
William from United Kingdom
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5-star boutique hotel in Ermoupoli with spa, wine bar, and Neoclassical architecture
Rooms & Accommodation
Castro Hotel Syros offers air-conditioned rooms with premium bedding and soundproof construction. The rooms feature high ceilings and private bathrooms with rain-head showers. Allergy-free room options and trouser press are available upon request.
Dining & Leisure
The hotel's restaurant serves Greek and Mediterranean cuisine for brunch, lunch, dinner, high tea, and cocktails. Breakfast includes warm dishes, fresh pastries, pancakes, cheese, fruits, and juice made from local ingredients. The on-site wine bar offers a curated selection of local wines, and the coffee house provides additional refreshments.
Spa & Wellness
The on-site spa provides facial, massage, and hydrotherapy treatments along with a hammam and hot tub. Spa packages include foot massage, head massage, and full body massage in the spa lounge. Guests can also rent bicycles from the hotel for local exploration.
Location & Concierge
Castro Hotel Syros is located a short walk from Asteria Beach and close to Apollon Theater and the Industrial Museum of Ermoupoli. The hotel offers tailored concierge services from local experts and a tour desk. Express check-in/check-out, luggage storage, and car hire are available.
Sustainability & Safety
The hotel follows a green initiative commitment to sustainability, with eco-friendly practices throughout the property. Safety features include CCTV in common areas, smoke alarms, fire extinguishers, and security alarms. Elevator access and grocery deliveries are provided for guest convenience.
Highlights
Rooms: Soundproof rooms with premium bedding and high ceilings
Dining: À la carte breakfast and curated local wine bar
Wellness: Spa with hammam, hydrotherapy, and bicycle rental
Location: Near Asteria Beach, Apollon Theater, and Industrial Museum
Service: Tailored concierge from local experts and express check-in/check-out
Sustainability: Green initiatives focused on eco-friendly operations
Must-do experiences
Visit the stunning Apollon Theater, a gem of neoclassical design.
Savor Loukoum, a local sweet, at the charming Agios Konstantinos bakery.
Explore the fascinating Syros Industrial Museum for a glimpse into history.
Stroll through the lively Ermoupoli Market for local delicacies.
Relax at the secluded Vari Beach for sunbathing and tranquility.
Choose your island room type
Castro Hotel Syros offers a variety of rooms including double rooms, family rooms, and suites with breakfast, free cancelations, and special deals
Standard King Room
2 persons
18 sq. feet
1 King-size bed
Air conditioning
Heating
room details
Deluxe Double Room Balcony
2 persons
22 sq. feet
1 King-size bed
Air conditioning
Balcony
room details
Superior King Room
2 persons
22 sq. feet
1 King-size bed
Air conditioning
Heating
room details
Show all rooms
Price and Room Availability Calendar
Check availability and prices for your dates now!
September 2026 - September 2027
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Check-in/ Check-out
Facilities
Castro Hotel Syros offers amenities for your comfortable stay and unforgettable experiences
Facilities: Perfect
9.4/10Review score
General
Non-smoking rooms
Wi-Fi
Safe deposit box
VIP check-in/ -out
Express check-in/ -out
Concierge desk
No pets allowed
Security
Luggage storage
Allergy-free rooms
Lift
Coffee shop
Smoke detectors
Fire extinguishers
Services
Room service
Housekeeping
Car hire
Laundry
Dry cleaning
Tours/Ticket assistance
Grocery shopping service
Welcome drink
Dining
In-room breakfast
Restaurant
Snack bar
Bar/ Lounge area
Packed lunches
Special diet menus
Business
Fax/Photocopying
Children
Cots
Babysitting/Child services
Playpen
Spa & Leisure
Sun terrace
Leisure/ TV room
Spa & wellness centre
Turkish bath
Jacuzzi
Head massage
Full body massage
Foot massage
Room features
Air conditioning
Heating
Soundproofed rooms
Sitting area
Terrace
Garden furniture
Ironing facilities
Bathroom
Free toiletries
Self-catering
Electric kettle
Dryer
Media
Flat-screen TV
Room decor
Parquet floor
Show more
Castro Hotel Syros: Location on the Island
12 Kalomenopoulou, Ermoupoli, 84100,
Explore Ermoupoli
Local Activities & Dining
Top Attractions
Activities
Dining
Entertainment
National Resistance Monument
5 minutes' walk
A tribute to local heroes, this monument provides insights into Syros' historical struggles with stunning city views.
Miaouli Square
4 minutes' walk
The heart of Ermoupoli, offering vibrant surroundings surrounded by cafes and important buildings, perfect for people-watching.
Archaeological Museum of Syros
5 minutes' walk
Housing artifacts from the Cycladic period, this museum showcases the island's rich history and hosts occasional free admission days.
St. George's Cathedral
17 minutes' walk
An architectural marvel with stunning views, the cathedral features impressive icons and intricate details worth visiting.
Kini Beach
8 minutes' drive
A relaxing beach with clear waters and cafes nearby, ideal for sunbathing or swimming after a short drive from the hotel.
Pherecyde Cave
35 minutes walking
A hidden gem for hiking enthusiasts, featuring stunning rock formations and serene landscapes for nature lovers.
Local Markets
5 minutes' walk
Vibrant markets showcasing local produce, crafts, and cultural events, a great spot for taking home unique souvenirs.
Taverna to Petrino
2 minutes' walk
A cozy eatery featuring traditional Greek dishes, with an inviting atmosphere and fresh seafood specialties; reservations suggested.
Mammo Wine And Food Bar
3 minutes' walk
A stylish wine bar offering local wines and a diverse menu of Mediterranean cuisine, perfect for a casual dinner.
Seminario Restaurant
2 minutes' walk
An elegant setting serving Mediterranean and Greek delicacies, known for its excellent service and quality ingredients.
Local Music Venues
10 minutes' walk
Featuring local artists and traditional cykladic music, providing a lively atmosphere perfect for a night out.
Ermoupolis City Hall
4 minutes' walk
An architectural landmark that hosts cultural events, including art exhibitions and concerts suitable for all ages.
Getting around the Greek Islands
City Centre
Ermoupoli 4 min · 1000 ft
Airports
Syros Island (JSY) 8 min · 3.3 mi
Mykonos (JMK) 63 min · 25.8 mi
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Property information and rules
Check-in
from 15:00-23:59
Check-out
until 11 am
Internet
Wireless internet is available in the entire hotel for free.
Breakfast
A full breakfast is served at the price of EUR 30.0 per person.
Pets
Pets are not allowed.
Languages
German, Greek
Number of rooms:
9
Guest Reviews and Ratings
Feedback about Castro Hotel Syros from previous guests about their experience.
Review score
Based on 124 verified reviews
9.3 /10
Perfect
95 %
Recommend
Cleanliness
9.6/10
Comfort
9.6/10
Facilities
9.4/10
Free WiFi
8.7/10
Location
9.8/10
Staff
9.6/10
Value for money
9.2/10
Pros
Perfect service
Historic ambiance
Luxurious accommodations
Cons
Noise complaints
Inconsistent breakfast quality
Guest reviews
based on 189 reviews
9.3/10
No reviews yet on our siteUnfortunately, our guests have not yet left any reviews for this hotel, but you can read reviews from Booking.com.
Standard King Room2 persons18 sq. feet1 King-size bedAir conditioningHeatingroom details
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