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Casa Una Residence — Luxury villas in Koh Samui, Thailand

An exclusive collection of luxury villas in Chaweng, in the heart of Koh Samui — designed for those who seek more than just a property.

From 5,500,000 THB (≈ €145,000)
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The concept

One villa. One story.

Nestled in a peaceful, slightly elevated setting, Casa Una is a private collection of luxury villas crafted for those who seek both an emotional retreat and a smart investment.

Inspired by the intimacy of Balinese resorts and the purity of contemporary architecture, the project introduces a concept still rare on the island: private villas designed to live a unique experience.

Each space is conceived to be personal, immersive and timeless — where design meets profitability.

Façade at sunset
Reading corner Open kitchen

The island

Koh Samui

Koh Samui is emerging as one of Thailand's most promising real estate markets, driven by sustained tourism growth, limited land supply and rising demand for premium villas.

New direct flights to hubs like Dubai and Bali, major infrastructure projects (the upcoming bridge to the mainland) and the presence of recognised international schools strengthen its long-term appeal.

Investing in Koh Samui today means positioning yourself early in a destination that is moving up-market.

Koh Samui
Chaweng, the #1 address

The location

Chaweng, the #1 address

Chaweng is the true economic heart of the island, with fast access to the international airport, the most renowned beaches, high-end restaurants, beach clubs and shopping.

This centrality makes it the strongest area for short-term rental, with year-round demand from an international clientele.

Collections

Three ways to inhabit Casa Una

Neither an impersonal resort, nor a standardised project. Each collection tells its own story — from the intimate cocoon to the signature residence.

1 bedroom

UNA Nest Villas

Private cocoons for couples, solo travellers and premium short-term rental demand.

  • Private pool and tropical garden
  • Intimate and emotional layout
  • Strong occupancy potential
From 5,500,000 THB (≈ €145,000*)
View the villa

2 bedrooms

UNA Horizon Villas

Slightly elevated villas offering open views and flexible usage.

  • Generous living spaces
  • Greater sense of openness
  • Open views
From 6,300,000 THB (≈ €166,000*)
View the villa

Limited collection · 4 bedrooms

UNA Signature Villas

Architectural statement residences for owners seeking prestige and long-term positioning.

  • Panoramic perspectives
  • International resort-inspired design
  • Rare patrimonial asset
From 9,900,000 THB (≈ €261,000*)
View the villa

* Sale price in Thai Baht (THB). The euro equivalent is indicative, calculated at the rate of 5 June 2026 (€1 ≈ 38 THB) and subject to change.

Rental income

Detailed income, cost by cost.

For each villa: estimated gross rental income, then every cost line by line — platform commission, management, land lease, co-ownership fees, water, maintenance reserve. Electricity, which depends on consumption, is shown separately. Three occupancy scenarios: 65%, 75% and 88%. Every figure can be checked: nights rented × nightly rate = gross income.

1 bedroom

UNA Nest Villas

Investment

5,500,000 THB (≈ €145,000*)

Occupancy 65%75%88%
Nights rented per year 237274321
Average nightly rate €145€145€145
Gross rental income €34,365€39,730€46,545
− Airbnb / Booking commission (15% of gross) − €5,150− €5,960− €6,980
− Rental management & concierge (15% of gross) − €5,150− €5,960− €6,980
− Land lease rent − €2,210− €2,210− €2,210
− Co-ownership fees − €2,680− €2,680− €2,680
− Water − €80− €80− €80
− Maintenance & furniture reserve (5% of gross) − €1,720− €1,990− €2,330
Electricity (metered, public PEA tariff) not includednot includednot included
Total costs − €16,990− €18,880− €21,260
Estimated net income per year €17,375 €20,850 €25,285
Per month ≈ €1,450≈ €1,740≈ €2,110

2 bedrooms

UNA Horizon Villas

Investment

6,300,000 THB (≈ €166,000*)

Occupancy 65%75%88%
Nights rented per year 237274321
Average nightly rate €197€197€197
Gross rental income €46,689€53,978€63,237
− Airbnb / Booking commission (15% of gross) − €7,000− €8,100− €9,490
− Rental management & concierge (15% of gross) − €7,000− €8,100− €9,490
− Land lease rent − €2,840− €2,840− €2,840
− Co-ownership fees − €2,680− €2,680− €2,680
− Water − €80− €80− €80
− Maintenance & furniture reserve (5% of gross) − €2,330− €2,700− €3,160
Electricity (metered, public PEA tariff) not includednot includednot included
Total costs − €21,930− €24,500− €27,740
Estimated net income per year €24,759 €29,478 €35,497
Per month ≈ €2,060≈ €2,460≈ €2,960

Limited collection · 4 bedrooms

UNA Signature Villas

Investment

9,900,000 THB (≈ €261,000*)

Occupancy 65%75%88%
Nights rented per year 237274321
Average nightly rate €316€316€316
Gross rental income €74,892€86,584€101,436
− Airbnb / Booking commission (15% of gross) − €11,230− €12,990− €15,220
− Rental management & concierge (15% of gross) − €11,230− €12,990− €15,220
− Land lease rent − €3,950− €3,950− €3,950
− Co-ownership fees − €2,680− €2,680− €2,680
− Water − €80− €80− €80
− Maintenance & furniture reserve (5% of gross) − €3,740− €4,330− €5,070
Electricity (metered, public PEA tariff) not includednot includednot included
Total costs − €32,910− €37,020− €42,220
Estimated net income per year €41,982 €49,564 €59,216
Per month ≈ €3,500≈ €4,130≈ €4,930

See the full 2026 price breakdown

Payment terms

Staggered payments

A flexible plan aligned with actual construction progress. You pay at the project's pace, not before.

  1. 01

    Reservation

    5%
  2. 02

    Contract signing

    10%
  3. 03

    Construction start

    20%
  4. 04

    Phase 2

    30%
  5. 05

    Phase 3

    30%
  6. 06

    Handover of keys

    5%

Estimates before electricity (depends on each villa's consumption, billed at the public PEA tariff), rental income tax, property tax and insurance. Occupancy and nightly rates are not guaranteed. Land lease and co-ownership fees as per the framework contract; euro amounts converted at an indicative rate of 38 THB to €1.

* Sale price in Thai Baht (THB). The euro equivalent is indicative, calculated at the rate of 5 June 2026 (€1 ≈ 38 THB) and subject to change.

Income simulator

Simulate your rental income

Choose a villa, an occupancy rate and a nightly rate. The simulator deducts the costs — platform commission, management, land lease, co-ownership fees, water, maintenance reserve — and shows the estimated net income. Electricity, which depends on consumption, is not included.

75%
15%

Villa price

5,500,000 THB (≈ €145,000*)

Gross rental income
− Airbnb / Booking commission (15%)
− Rental management & concierge (15%)
− Fixed costs (land lease, co-ownership, water)
− Maintenance & furniture reserve (5%)
Electricity (metered, public PEA tariff)
not included
Estimated net income per year
Per month
Request a personalized estimate

Estimates before electricity (depends on each villa's consumption, billed at the public PEA tariff), rental income tax, property tax and insurance. Occupancy and nightly rates are not guaranteed. Land lease and co-ownership fees as per the framework contract; euro amounts converted at an indicative rate of 38 THB to €1.

* Sale price in Thai Baht (THB). The euro equivalent is indicative, calculated at the rate of 5 June 2026 (€1 ≈ 38 THB) and subject to change.

Timeline

A controlled project, a turnkey delivery

  1. 01

    July 2026

    Construction start

    Invest at the launch phase and benefit from the best acquisition conditions.

  2. 02

    Q4 2027

    Construction completion

    Construction runs for around 12 to 18 months, with delivery expected late 2027.

  3. 03

    + 4 to 8 weeks

    Furnishing & rental setup

    Complete preparation of the property: furniture, equipment and rental setup. Your villa is ready to generate income quickly.

Advantages

The benefits of off-plan

Invest today, harvest tomorrow. Buy before delivery to benefit from the best conditions.

Secured residence

A private estate designed for your daily comfort and tranquillity.

Builder warranty

Quality construction with a 10-year warranty.

On-site reception

A dedicated team ensures security and welcomes you and your guests.

Capital appreciation

Real estate investment in one of Thailand's most attractive markets.

Preferential pricing

Launch-phase preferential rates before market prices rise.

Optional rental management

Maximise your income with our turnkey rental management service.

Private + guest parking

Secure parking spaces for you and your visitors.

Reduced service fees

Controlled maintenance costs for optimised long-term profitability.

Brand-new equipment

Modern finishes and high-end equipment for absolute comfort.

Staggered payments

A flexible payment plan tied to construction progress.

The Casa Una experience

Much more than a villa, a place to live

At the heart of the project, owners and their guests enjoy dedicated spaces for wellbeing and conviviality: a lifestyle café, a yoga space, a spa and a gym.

This approach creates a unique atmosphere, where every villa fits into a vibrant, aesthetic and coherent environment. The project positions itself as a true destination, encouraging longer stays, optimised occupancy and superior perceived value.

  • → Lifestyle café
  • → Yoga space
  • → Spa & wellness
  • → Gym
  • → On-site concierge
  • → In-villa chefs
  • → Private transfers
  • → Scooter & car rental
Turnkey concierge service

Turnkey concierge service

To fully optimise profitability and guest experience, Casa Una offers an on-site concierge: check-in/check-out, booking management, dynamic pricing, communication and complete estate maintenance (cleaning, pool, garden).

The model is transparent: a fixed fee for general estate maintenance, plus a commission on rental income. The better the villa performs, the better the collaboration works for everyone.

The concierge service is optional — you retain full freedom of management.

Gallery

The Casa Una atmosphere

Official photos coming soon. In the meantime, here is the overall ambience of the project.

360° · 5 rooms

Immersive tour

Walk through the villa, room by room. Pick a space to play the video.

Exterior

Frequently asked questions

Everything you need to know before investing

Can a foreigner buy a villa in Thailand?

Yes, through a lease registered at the Land Office (leasehold) for a maximum of 30 years, the limit set by Section 540 of the Thai Civil and Commercial Code. The contract can include renewal options, but only the first 30-year term is legally certain: a renewal means a new lease, registered when the time comes (Supreme Court judgment No. 4655/2566). This is the legal structure foreign buyers use in Koh Samui; Casa Una guides you through it, and we recommend having the contract checked by an independent Thai lawyer.

Why invest in Chaweng rather than elsewhere on Koh Samui?

Chaweng is the economic heart of the island: international airport 10 minutes away, the most popular beaches, fine dining and beach clubs. This centrality drives constant year-round rental demand and offers the strongest resale potential.

How much rental income can a Casa Una villa generate?

After deducting costs (platform commission, management, land lease, co-ownership fees, water, maintenance reserve), before electricity (depends on consumption) and before tax, our net income estimates range from €17,400 to €25,300 per year for a UNA Nest (1 bedroom), €24,800 to €35,500 for a UNA Horizon (2 bedrooms) and €42,000 to €59,200 for a UNA Signature (4 bedrooms), at 65 to 75% occupancy. The line-by-line breakdown is published for each villa. These are estimates, not guaranteed income.

How much does a new villa in Chaweng, Koh Samui cost?

The UNA Nest (1 bedroom) starts at 5,500,000 THB (≈ €145,000), the UNA Horizon (2 bedrooms) at 6,300,000 THB (≈ €166,000) and the UNA Signature (4 bedrooms) at 9,900,000 THB (≈ €261,000), excluding the furniture pack. Prices are set in Thai baht, with an interest-free staged payment plan. To compare with the wider Koh Samui market, our “Koh Samui villa prices 2026” page gathers the figures published by local agencies, with their sources.

How are these figures calculated?

Gross income = nights rented × average nightly rate (rates from the official brochure). We then deduct the Airbnb/Booking commission (15%), rental management and concierge (15%), the land lease rent and co-ownership fees set out in the contract, water (250 THB/month), and a maintenance and furniture renewal reserve (5%). Electricity depends on each villa's consumption (public PEA tariff) and is not included. Every assumption is shown: you can redo each calculation yourself or test it in the simulator.

What is the project timeline?

Construction starts July 2026, delivery expected Q4 2027 (12 to 18 months of construction). A furnishing and rental setup period of 4 to 8 weeks follows handover.

What are the payment terms?

Staggered plan tied to construction progress: 5% on reservation, 10% at contract signing, 20% at construction start, 30% phase 2, 30% phase 3, 5% on handover. You pay at the project's pace.

Is there a rental management service?

Yes, Casa Una offers an on-site concierge: check-in/check-out, booking management, dynamic pricing, full maintenance (cleaning, pool, garden). The service is optional and based on a fixed fee + commission. You keep the freedom to self-manage if you prefer.

What fees and taxes should I expect?

On purchase: transfer fees and taxes (up to ~6.3% of the price in the maximum combined case), VAT not applicable on leasehold. Ongoing: land lease rent (7,000, 9,000 or 12,500 THB/month depending on the villa, +5% every 5 years), co-ownership fees (8,000 to 8,500 THB/month: pool, garden, gym, spa, pest control, waste collection), water (250 THB/month), electricity by consumption (public PEA tariff), rental income tax, and the management commission if you entrust the rental to the concierge. Casa Una provides a full breakdown before signing.

Do I need to be in Thailand to buy?

No. The reservation signing and most steps can be done remotely, with legalised power of attorney. An on-site visit is recommended (but not mandatory) before final signing. Casa Una organises French-speaking guided visits in Chaweng.

What are the advantages of buying off-plan versus an existing villa?

Launch-phase pricing, a choice of finishes, brand-new equipment, a 10-year warranty and interest-free staged payments tied to construction progress. Value may rise between reservation and delivery, but this is not guaranteed: it depends on the market.

What is the difference between the three villa collections?

UNA Nest (1 bedroom, €145,000): for couples, solo travellers, premium short-term rental. UNA Horizon (2 bedrooms, €166,000): for families or shared investment, open views. UNA Signature (limited collection 4 bedrooms, €261,000): for owners seeking prestige and long-term patrimonial value.

How does Casa Una secure the investment?

Developer The Circle Samui, transparent structure, 10-year construction warranty, payments tied to actual construction progress (no upfront lock-up), on-site team during and after construction. All legal documents are verifiable before signing.

How do I reserve a Casa Una villa?

Contact us via WhatsApp (+66 81 920 7541 or +66 64 916 0241), email (info@thecirclesamui.com) or the form below. Reply within 24 hours. Reservation is made with a 5% deposit that exclusively holds your chosen villa.

By submitting this form, you agree to be contacted by Casa Una about your investment project.