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Newly finished villa kitchen and dining area with a stone island

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Construction & Renovation in Koh Samui

Building a villa or renovating a property on Koh Samui? We help you plan, budget and choose builders, coordinate contractors and check what you are buying into before work begins.

Building or renovating on Koh Samui can produce a wonderful home, but it is also where many owners lose time and money: unrealistic budgets, contractors who overstretch, payments made ahead of progress, permits that were never obtained and work that fails in the first rainy season.

We are not a construction company. Building work is carried out by contractors you appoint, with structural work designed and supervised by licensed professionals. Our role is to help you plan the project, introduce builders and specialists we know, coordinate between them and keep an owner’s eye on progress, which matters most when you are not on the island.

How we can help

Villa construction

Building a new villa starts with land that can take it and a design that suits the site and budget. We help you sequence the project: land and permits, design, tendering, contract, construction and handover, and make sure the right professionals are involved at each stage. See architecture and design for the design stage.

Builder introductions

We introduce builders whose completed work we have seen, and you are free to choose others. Before appointing anyone, visit finished projects, speak to their past clients, ask who will manage your site day to day and check how they handle variations, delays and defects.

Renovation planning

A good renovation begins with a clear list of what needs fixing, what should be improved and what will genuinely add value or rental appeal. We help you set priorities, budget realistically and phase the work around your use of the property, guests or tenants.

Contractor coordination

Most projects involve several trades: builders, electricians, plumbers, pool specialists, air-conditioning installers, carpenters and landscapers. We help coordinate who does what and when, chase progress and keep you informed with photos and updates.

Construction feasibility

Before you commit, we look at whether the project makes sense: site access for materials and machinery, slope and drainage, utilities, permit requirements and whether the likely cost fits the value of the finished property. Our guide to building rules on Koh Samui explains what limits construction.

Refurbishment

Many resale villas need updating: new kitchens and bathrooms, better air-conditioning, replacement windows and doors, waterproofing, re-tiled pools or new finishes. We help scope the work and find the right people to carry it out.

Property improvements

Some improvements pay for themselves in rental income or sale price; others mainly suit your taste. We can advise on which improvements are likely to matter to buyers and guests, from solar power and backup water to extra bedrooms and outdoor living space.

Project budgeting considerations

Budgets on Samui need to allow for more than the builder’s quote: design and engineering fees, permits, site preparation, retaining walls on slopes, utility connections, landscaping, furniture and a contingency for the unexpected. We help you build a complete budget and a payment schedule that follows progress rather than running ahead of it.

Construction-related due diligence

Buying a villa means buying its construction. Before you commit, your lawyer should confirm the building permit and completion documents, and an independent surveyor or engineer can inspect the structure, roof, waterproofing and services. We help you arrange these checks and interpret what they find. See our guide to property due diligence.

Protecting yourself on a building project

  • A clear specification and drawings agreed before the price
  • A written contract reviewed by your lawyer, with a fixed scope, timetable and defects period
  • Payments in stages linked to completed work, not dates
  • Permits in place before work starts, in the right name
  • Regular inspections by someone acting for you
  • Written approval and pricing for any changes

Frequently asked questions

Are you a builder?

No. We help you plan, introduce builders and specialists and coordinate the project. Construction is carried out by contractors you appoint, under their own contracts.

How much does it cost to build a villa in Koh Samui?

It varies widely with the site, design, specification and access. We prefer not to quote general figures that may not apply; instead we help you get comparable quotes for your project and build a complete budget.

Can you oversee a renovation while I am abroad?

We can coordinate contractors, visit regularly, report progress with photos and flag issues. For structural work, a licensed engineer or architect should supervise.

Do I need a permit to renovate?

Many internal and cosmetic works don’t need a building permit, but structural changes and extensions usually do, and condominium renovations need the building’s approval. A licensed professional can confirm what applies.

Newly finished villa kitchen and dining area with a stone island

Planning a build or renovation?

Tell us about the property and what you have in mind, and we will help you plan it properly from the start.

General information only. Construction and structural work is carried out by independent contractors and licensed professionals. Last reviewed November 2026.

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