All Suite Hotel
Slow-living Mediterranean minimalism. Earthy tones, natural stone and wood, Cycladic architectural touches, chemical-free pools. The vibe is intentional and philosophy-driven — think Hippocrates meets farm-to-fork meets L'Occitane spa. It's sociable by design (communal tables, shared pool suites, convivial restaurants) but private when you want it.
Book the Theros Suite for the headline experience: 60m² indoors, 74m² outdoors, heated private pool, jacuzzi, steam bath, outdoor training corner, and outdoor shower
Why It Matters
Genuinely family-run — owner Ilias Mastrominas is the architect, his wife Katerina manages the gardens, daughter Aspasia (a pharmacist) advises the botanical spa, and son Yiannos handles engineering. That shows. The hotel uses solar power, recycled water, zero single-use plastics, and runs a kitchen garden that feeds the restaurants. The Michelin-connected consulting chef, L'Occitane spa partnership, and Gold 'Boutique Hotel of the Year 2023' award all confirm this is more than just another Aegean resort.
Theros is the Greek word for summer, and this family-owned boutique hotel on Kos takes that name seriously. Opened in 2022 and designed by architect-owner Ilias Mastrominas, it's an adults-only property built around inner courtyards filled with transplanted olive trees, palm trees, and Hippocratic medicinal herbs. Every one of the 88 suites has its own private outdoor space — ranging from shaded terraces and roof gardens to hot tubs and private pools. It sits 120 meters from Lambi Beach and just outside Kos Town, which means you're not stranded somewhere remote but the hotel still feels genuinely calm.
Where You'll Stay
10 room types available
Grand Junior Suite with Hot Tub
37m² indoors with 12m² of outdoor space featuring an outdoor hot tub. A solid mid-tier choice for couples who want private hydrotherapy without paying for a full private pool. Fits up to 3 adults.
37 sqmGrand Junior Suite with Roof Garden
A step up in indoor space at 37m², with 15m² of roof garden outdoor space. Fits up to 3 adults — useful for a solo traveler wanting extra room or a small group of friends.
37 sqmJunior Suite
The entry-level suite with a private terrace. 32m² indoors, 9m² of outdoor space. Earthy Cycladic design with natural materials, king-size bed, open-concept bathroom with walk-in shower. Fits 2 adults.
32 sqmJunior Suite with Roof Garden
Same footprint as the Junior Suite but with an upgraded outdoor space — up to 27m² of rooftop terrace, complete with a hammock. Good for watching the surrounding greenery and getting morning sun. Fits 2 adults.
34 sqmPremium Private Pool Suite
The larger private pool suite at 42–43m² indoors and 31m² outdoors. Upgraded finishes and more interior space than the standard Private Pool Suite. Qualifies for the free airport transfer benefit on stays of 5+ nights. Fits 2 adults.
42 sqmPrivate Pool Suite
36m² indoors and a generous 31m² outdoor space with a private pool. The sweet spot for couples who want genuine privacy without going all-in on the flagship suite. Fits 2 adults.
36 sqmSharing Pool Suite
37m² indoors with 17m² of outdoor space and access to a communal pool shared with a small cluster of neighbouring suites. Designed for sociable guests who like meeting fellow travelers. Fits 2 adults.
37 sqmSwim-Up Suite
37m² indoors with 16m² outdoors, featuring direct swim-up pool access. Step straight from your private outdoor space into the water. Fits 2 adults.
37 sqmTheros Suite with Private Heated Pool
The flagship. 60m² indoors and a massive 74m² outdoors. Features a heated private pool, a jacuzzi, steam bath in the shower, outdoor training corner, outdoor shower, and an outdoor swing. Living room, two Smart TVs, Marshall speaker, pillow menu. Fits 2 adults but the outdoor space is substantial. This is the suite that makes it genuinely hard to leave the property.
King · 60 sqmVilla Mezzanine with Private Pool
The only suite that accommodates 4 adults. 56m² indoors across a mezzanine layout, with 34m² of outdoor space and a private pool. The biggest option for two couples traveling together. Qualifies for the free airport transfer benefit.
56 sqmThe Property
Eat & Drink
3 venues on property
Restaurant
Spa & Wellness
Treatment Menu
On Property
How you'll actually spend your days.
A curated boutique by the reception area featuring unique designers and fashion items reflecting Mediterranean culture.
The concierge team arranges: Jeep safaris to Mount Dikaios, day cruises to Nisyros / Kalymnos / Pserimos, windsurfing and kitesurfing at Lambi and Psalidi, scuba diving, horseback riding, traditional cooking classes, farm visits, wine tastings, and island hiking.
The hotel sits right beside a cycle path that winds from Lambi directly into Kos Town, passing scenic beaches along the way. Bike loans available.
A proper indoor gym plus a separate open-air training area for those who prefer exercising outdoors. Personal trainer on hand.
Weekly live music at Parea bar. Frequency and programming varies by season.
Leisure walks through the hotel gardens picking aromatic local herbs grown in the tradition of Hippocrates. Led by or advised by the owner's daughter Aspasia, a pharmacist.
Classes held on the outdoor Yoga Deck or in the covered Yoga Sala. Personal trainer available to customize sessions.
Bespoke private dining can be arranged through the concierge — options include beach picnics, suite dining, and dedicated private dinner setups.
A weekly organized sustainability session helping guests better understand the hotel's environmental commitments — composting, herb gardens, water recycling, etc. Runs year-round.
Amenities & Practical Info
The details that matter for planning.
Sandy Lambi Beach is a 120-meter walk from the property. Hotel supplies sun loungers, umbrellas, and beach towels to guests.
Dedicated room service menu available around the clock (charged service).
On-site vegetable and herb garden that supplies produce directly to both restaurants. Hippocratic medicinal herbs are also grown throughout the grounds.
A mezzanine library space at Mazi Mas bar — a quiet corner for reading with pool views.
On-site free parking available. Electric vehicle charging points included — notable for an island property.
Two main communal pools flanked by palm trees and sun loungers. Both are chemical-free (treated without traditional chlorine chemicals) per the hotel's eco ethos. Open 9am–7pm seasonally.
Charged laundry service available.
Bicycle lending for guests to use the adjacent coastal cycling path to Kos Town.
Return transfers from Kos Airport from €125. Free for 5+ night stays in top-tier suites (Premium Private Pool Suite, Villa Mezzanine, Theros Suite).
BUILD YOUR THEROS ALL SUITE HOTEL PLAN
Rooms, dining, spa, and resort experiences — organized into one trip plan.
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