Independent advisors helping international investors acquire, develop and create exceptional property throughout Southern Greece.
Property investment & development advisory

Acquire. Develop. Create.

Creating long-term value through carefully selected acquisitions, strategic developments and trusted local partnerships.

Working with international buyers, developers and landowners to unlock opportunities across Southern Greece.

Download our Southern Greece Investment Guide →
MonemvasiaManiPorto HeliSiteSketchVillaTerraceSunset
One
Region
Three
Peninsulas
1,000s
Kilometres of coastline
Global
International network
One
Trusted partner
Our philosophy

Acquire. Invest. Develop. Create. Enjoy. Legacy.

Every relationship follows the same arc — from a first conversation to an asset that lasts generations.

01

Acquire

Sourcing the right opportunity, on and off market.

02

Invest

Structuring capital and decisions with clear analysis.

03

Develop

Planning, approvals and delivery through trusted teams.

04

Create

Turning land and ideas into places people live in.

05

Enjoy

A property, and a region, worth returning to.

06

Legacy

Value that compounds for the next generation.

Why Thalasia

Why Thalasia?

Independent advice

International perspective

Local relationships

Planning expertise

Development experience

Investment focus

Why Southern Greece

Why sophisticated investors are looking here.

This is an investment thesis, not just a destination.

Lower entry prices, larger parcels

Authentic Greek lifestyle

Infrastructure investment

Growing tourism, limited supply

Development opportunities

Rising international demand

Our region

The Southern Peloponnese Collection.

Rather than promoting individual towns, Thalasia Global positions clients across three connected regions — each with a distinct character and investment case.

Three distinct coastal regions, each offering a unique investment profile, lifestyle and development opportunity.

Southern Peloponnese Athens ≈ 2.5 hrs by car Kalamata ≈ 1 hr by car Argolis Riviera Porto Heli · Ermioni · Koilada Malea Peninsula Monemvasia · Xifias · Elia Mani Peninsula Gytheio · Limeni · Areopoli Mediterranean Sea · tap a region to explore

Argolis Riviera

Porto Heli · Ermioni · Koilada

Suitable for buyers wanting convenient access from Athens, combining established infrastructure with a mature holiday-home market.

Malea Peninsula

Monemvasia · Xifias · Elia · Plytra · Neapolis

An emerging investment region with significant long-term growth potential, offering value ahead of infrastructure and demand catching up.

Mani Peninsula

Gytheio · Limeni · Areopoli · Kardamyli

Recognised for heritage, luxury lifestyle and premium coastal property, with a distinctive architectural identity that commands a premium.

Investment heat map

How the regions compare.

Region Lifestyle Development Capital growth Rental
Argolis Riviera ★★★★★ ★★★★★ ★★★★ ★★★★★
Malea Peninsula ★★★★ ★★★★★ ★★★★★ ★★★★★
Mani Peninsula ★★★★★ ★★★★ ★★★★ ★★★★

Ratings reflect our advisory team's assessment based on current listings, planning activity and buyer demand in each region — reviewed quarterly, not a formal index.

Invest

Find the right property.

Independent representation for international buyers and investors, from first search to final settlement — working solely in your interest.

Off-market acquisitions Property sourcing Due diligence Negotiation Legal coordination Tax coordination Finance introductions Company formation Investment analysis Settlement assistance
Develop

Transform land into long-term value.

Full development advisory — sourcing sites, unlocking their potential and coordinating delivery, through to Thalasia's own future developments.

Land sourcing Development feasibility Unlock your property's potential Development approvals Architect coordination Engineering coordination Builder selection Bring your vision to life Subdivision Luxury villa creation Structure the right investment Exit strategies
Development partnerships

Local expertise, shared risk.

For developers who need a partner on the ground — from site identification through to sales strategy.

Site identification Feasibility Planning Joint ventures Capital introductions Development delivery Sales strategy
Landowners

Own land in Southern Greece?

You may be sitting on far more value than you realise. This is our biggest point of difference — helping landowners move from selling undeveloped land to delivering completed projects.

Development
JV
Funding
Planning
Exit

We can introduce investors, equity partners, joint venture partners, development capital and strategic buyers. Many owners don't realise they don't necessarily need to sell their land to realise its value.

Investment partnerships & structuring

Invest alongside opportunity, structured right.

Thalasia works with a select group of private investors, family offices and strategic partners who share our long-term investment philosophy — participating in carefully chosen property and development projects across Southern Greece, and structuring the capital behind them.

Highest & best use analysis Joint venture structuring Private equity & debt Development & construction finance Investor introductions Development management
Get notified when Thalasia Collection One opens for partnership
Partner with us

We welcome the right relationships.

Thalasia actively seeks relationships with experienced partners who share our long-term vision of creating exceptional residential and lifestyle developments throughout Southern Greece. We welcome discussions with private investors, developers, landowners, family offices, strategic partners, builders, architects and funding partners.

Family offices
Developers
Private investors
Architects
Builders
Banks
Lawyers
Tax
Migration
Planning
Land contributions Development funding Joint ventures Co-investment Development management Project delivery
Our network

A private investment ecosystem.

ArchitectsPlanning consultantsSurveyors LawyersTax advisorsBanks FinancePrivate investorsDevelopers BuildersInterior designersProperty managers MigrationGolden visa
Our difference

Beyond the transaction.

Traditional agency

  • Sells property
  • Represents sellers
  • Ends at settlement
  • Commission focused

Thalasia Global

  • Creates investment opportunities
  • Represents buyers, investors and landowners
  • Coordinates acquisition through development
  • Focuses on long-term value creation
Projects in progress

We're creators, not just advisors.

Under assessment

Land parcels, Malea Peninsula

Two coastal-adjacent parcels near Monemvasia under feasibility review for boutique residential use.

In discussion

Joint venture, Mani coastline

Early-stage discussions with a landowner in Limeni regarding a restoration-led partnership.

Future community

Boutique villas, Argolis Riviera

Concept planning for a small residential cluster near Porto Heli, subject to zoning confirmation.

Coming soon

New opportunities, Southern Peloponnese

Additional sites are under review across all three regions — register your interest to hear first.

Limeni, Mani Peninsula
Featured project

Thalasia
Collection One

Monemvasia · Malea Peninsula

Eight contemporary villas in a boutique beachfront community, under early assessment and currently seeking a landowner partnership to bring the concept to feasibility.

Projects

A curated selection, not a listing feed.

Current advisory projects, our development pipeline, joint ventures, private opportunities and future Thalasia developments — every project is presented with its investment rationale, not simply its property details.

Many opportunities are never publicly marketed and are introduced directly to qualified buyers.

Current advisory

Completed residence

Move-in ready coastal and hillside residences.

Development pipeline

Development site

Sites suited to boutique residential projects.

Joint venture

JV opportunity

Structured partnerships between landowners, capital and delivery.

Future development

Future Thalasia development

Early access to communities not yet publicly announced.

Journal

Educate, not simply market.

Buying guide

Buying property in Greece as a foreign national

What EU and non-EU buyers need in place before making an offer — from tax numbers to notary requirements.

June 2026
Planning

How planning approvals work in the Peloponnese

A realistic timeline for permits, and where most international buyers lose months without local guidance.

May 2026
Development

Understanding building costs before you commit

Realistic per-square-metre ranges for coastal builds, and the line items buyers most often underestimate.

May 2026
Investment intelligence

Regional spotlight: the Malea Peninsula

Why this emerging region is drawing early interest ahead of infrastructure catching up with demand.

April 2026
Investment

What makes a strong Southern Peloponnese investment

The factors we weigh before advising a client to proceed — location, title, access and exit potential.

April 2026
Infrastructure

Infrastructure developments to watch

Road, marina and airport projects that could reshape access and value across the three regions.

February 2026
About

"We believe the best investments begin long before a contract is signed. Our role is to identify opportunity, manage complexity and create enduring value."

We believe exceptional developments begin long before construction. They begin with the right relationships, the right strategy and the right vision. Our purpose is not simply to facilitate property transactions — it is to create enduring value for buyers, investors, landowners and the communities in which we work.

We selectively represent opportunities where we believe we can add genuine value, not simply facilitate a transaction.

ProfessionalIndependentKnowledgeable InternationalArchitecturalSophisticated TrustedLong-termBoutique
The causeway to Monemvasia rock, Southern Peloponnese
Experience that adds value

Why clients trust Thalasia.

John Kosmas, Founder & Director
John Kosmas
Founder & Director — CPA, Global Investment Dealmaker

A CPA and global investment dealmaker with over 35 years across professional services, private wealth and complex property and hospitality transactions. John has built a trusted international network of family offices, institutional investors and capital partners, leading acquisitions, joint ventures and structured transactions across Europe, the Middle East and Asia.

CPAProperty InvestmentCapital MarketsFamily Office Advisory
Connect on LinkedIn

Cross-border investment experience

International investor network

Finance and structuring expertise

Development advisory

Planning and project coordination

Buyer representation

Client perspectives

What clients say about working with us.

"Thalasia guided us through a land purchase we would never have found on our own, and stayed involved well past settlement to help coordinate the build."

International buyer · Malea Peninsula

"As a landowner, I didn't realise development was even an option until Thalasia walked me through it. The advisory approach made the difference."

Landowner · Mani Peninsula

"Independent, straightforward advice — they represented our interests, not the seller's."

Private investor · Argolis Riviera

Client examples are illustrative of the work we do; full case studies available on request.

Get in touch

Let's discuss your objectives.

Whether you're acquiring your first property in Greece, exploring a development site, or evaluating the potential of land you already own, we welcome a private conversation.

Email
enquiries@thalasia.global
Phone
+30 695 569 3008
Headquarters
◉ Athens, Greece