Wadi Zaha

Property Developer | Investor

John Dalmaris is an actuary and real‑estate investor based in Muscat, Oman. He combines more than 15 years of experience in corporate finance and investment analysis with hands‑on exposure to property acquisition and ownership in Oman and abroad.

Having personally navigated the Omani property market as a foreign buyer, John understands both the opportunities and the typical pain points international clients face – from legal structure and taxation to the practical realities of build quality, service charges and property management. He approaches every transaction with the mindset of an investor and homeowner rather than a traditional broker.

Together with his business partner Viktor, who brings deep construction and development expertise, John co‑founded Horizon Orbis to advise a small network of clients who want clear, independent guidance on purchasing property in Oman. Their goal is straightforward: to help clients make well‑informed decisions and ensure that what is promised on paper matches what is delivered on the ground.

Property Developer | Investor | Construction & Asset Management Specialist

With over 23 years of experience in construction, property development, and international real estate investment, Viktor Efthymiadis has built a reputation for delivering exceptional residential and commercial projects across the United Kingdom and Europe.

As the founder of Alpha Architecture, Viktor specialises in identifying high-potential investment opportunities, transforming underutilised properties into premium assets, and creating long-term value for investors and homeowners alike. His expertise covers acquisitions, refurbishment, project management, planning, structural alterations, and luxury interior finishes.

Having successfully managed projects ranging from high-end residential homes and HMOs to commercial conversions and hospitality developments, Viktor understands every stage of the property lifecycle—from sourcing opportunities and securing finance to construction, completion, and asset management.

Beyond development, Viktor advises private investors, overseas buyers, and family offices looking to invest in UK real estate. His practical, hands-on approach, combined with financial awareness and construction expertise, allows clients to minimise risk while maximising returns.

His philosophy is simple:

Every property has hidden potential. The key is knowing how to unlock it.

Today Viktor continues to expand his portfolio while developing long-term partnerships with investors, architects, developers, and property owners seeking exceptional results.

Areas of Expertise

Property Development
Investment Strategy
Residential & Commercial Renovations
HMO & Multi-Unit Conversions
Luxury Property Refurbishment
Project Management
Construction Consultancy
Property Acquisitions
Asset Management
International Property Investment

Languages: English • Greek • Russian