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Core Investments Framework · Project Diligence

Core Property Due Diligence Framework™

A six-pillar institutional checklist for evaluating any Thai property project: developer, ownership structure, operator, location, contract economics and exit pathway.

Difficulty · Intermediate15 min read✓ First-Time Investor✓ Cashflow Investor✓ Capital Growth

Last reviewed · 2026-06-29

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Before We Begin

Why investors usually get this wrong.

Diligence is the difference between a property purchase and a property investment. Most "due diligence" performed by foreign buyers is a developer brochure, a site visit and a lawyer's title check. That is not diligence. This framework is the full institutional checklist - the same one used on transactions ten times the size.

The Story

Two investors, one decision.

An investor signs on a Layan condominium after a one-day site visit. Six months later: title is clean but the EIA approval has conditions that limit short-let; the developer's previous project has unresolved warranty claims; the sinking fund is 38% below benchmark. None of this appeared in the brochure. All of it would have appeared in a structured diligence run.

That difference - not luck, but process - is exactly what this framework is designed to teach.

The Simple Answer

In one paragraph.

Full diligence spans legal, financial, technical, operational, regulatory and reputational pillars. Each pillar has a documented checklist and a red-flag escalation rule. Passing every pillar is a precondition for deposit; failing one is sufficient to walk.

Why This Framework Exists

The gap in existing advice.

"Trust your lawyer" is not a diligence process. Lawyers run legal diligence; investors need a framework that covers the other five pillars too.

What Problem Does It Solve?

A real-world example.

The framework flags a developer with two prior projects delivered 14 and 22 months late, and one ongoing dispute. The asset may still be acceptable, but the deposit structure changes from 30% to staged 10% milestones - a direct framework outcome.

Who Is This Framework Best For?

Best suited investor profiles.

  • ✓ First-Time Investor
  • ✓ Cashflow Investor
  • ✓ Capital Growth
  • ✓ Family Office
Difficulty · IntermediateReading time · 15 min

Prerequisites

Read these first.

Frameworks are the capstone of the Core Investments learning journey. These primers establish the context this methodology assumes.

Executive Summary

What Property Due Diligence Framework decides.

The Core Property Due Diligence Framework™ is the standard Core Investments applies before any project is permitted into a client portfolio. It compresses what an institutional acquisition team would test over weeks into a repeatable, comparable six-pillar review. Every pillar must be independently passable; a project that fails any single pillar is rejected regardless of pricing, brand or marketing positioning.

  • 01

    Diligence is the firewall between marketing material and investable inventory.

  • 02

    Six pillars are tested independently: developer, structure, operator, location, contract, exit.

  • 03

    A single failed pillar disqualifies a project - pricing does not compensate for structural risk.

  • 04

    Diligence outputs feed directly into the Net Yield Underwriting Method and the Total Return Component Model.

  • 05

    The framework is the same across Phuket, Bangkok, Pattaya and submarket-level acquisitions.

When To Use

Apply this framework when…

  • ▸Any off-plan or completed project under live consideration.
  • ▸Comparing two or more shortlisted projects on a like-for-like basis.
  • ▸Validating a project before committing the reservation deposit or contract execution.
  • ▸Reviewing an existing portfolio holding ahead of a renewal, refinancing or resale decision.

When Not To Use

Do not apply when…

  • ▸Lifestyle-only acquisitions without investment-return objectives.
  • ▸Pre-construction land plays where no project structure yet exists (use land-banking methodology instead).

The Methodology

Core Property Due Diligence Framework™

Proprietary Core Investments methodology. Designed for repeatable, comparable, evidence-based investment decisions.

  1. 01

    1. Developer

    Track record across delivered projects, financial standing, completion ratio, after-sales performance and any disputes or regulatory actions of record.
  2. 02

    2. Ownership Structure

    Freehold quota, leasehold tenure, Thai company or BVI route mapped to the buyer's nationality and tax position under the Core Foreign Ownership Framework.
  3. 03

    3. Operator (if hotel-managed)

    Operator credibility, contract economics, realised RevPAR, sinking-fund position and brand-standard exposure - escalated to the Core Hotel-Managed Diligence Framework.
  4. 04

    4. Location & Submarket

    Submarket selection, beach access, transit anchor or infrastructure catalyst, demand profile and competing pipeline within 1 km.
  5. 05

    5. Contract Economics

    Payment plan, transfer terms, guaranteed returns, FF&E reserve, marketing levy, owner-use blocks, termination rights and dispute resolution.
  6. 06

    6. Exit Pathway

    Secondary-market depth, lease assignability, foreign-buyer pool, comparable resale evidence and structural exit constraints - escalated to the Core Exit Strategy Framework.

Inputs

Variables in.

  • · Developer delivery history
  • · Foreign ownership structure and quota position
  • · Operator contract and 24–36 months realised P&L (if hotel-managed)
  • · Submarket pricing comparables
  • · Full contract and addenda
  • · Secondary-market liquidity data

Outputs

Decisions out.

  • · Pillar-level pass / fail rating
  • · Aggregate diligence verdict
  • · Diligenced net-yield input
  • · Identified material risks
  • · Pre-contract negotiation list
  • · Recommended structuring approach

Worked Example

Property Due Diligence Framework, applied to a Thailand case.

A Bang Tao branded condominium offered at THB 18m. Developer is a Tier-1 Thai listed group (pass). Foreign freehold quota verified at 41% (pass). Operator is a global flag on a 60/40 owner-favourable contract (escalated to Hotel-Managed Diligence - pass). Location is 400 m to Bang Tao beach with no competing pipeline within 1 km (pass).

Contract review identifies a 4% FF&E reserve and 2% marketing levy not in the brochure, and a 5-year owner-use restriction (conditional - renegotiate). Exit pathway shows shallow secondary-market depth for hotel-managed product at this price point (conditional - escalate to Exit Strategy Framework).

Framework output: investable subject to renegotiation of contract terms and an explicit pre-purchase exit plan. Diligenced net yield drops from 8% brochure to 4.9% - which becomes the underwriting input.

Common Pitfalls

Where investors get this wrong.

  • !

    Trusting brochure economics rather than independently testing each pillar.

  • !

    Treating a strong developer or famous operator as a substitute for contract diligence.

  • !

    Skipping submarket pipeline analysis and discovering competing supply post-purchase.

  • !

    Ignoring exit pathway because the holding period feels distant.

  • !

    Allowing one strong pillar to override a weak one - they must all pass.

Decision Checklist

Apply this framework today.

A concise checklist you can walk into your next viewing, reservation meeting or advisory call with.

  • 01Legal diligence cleared (title, encumbrances, EIA, permits).
  • 02Financial diligence cleared (developer balance sheet, escrow, sinking fund).
  • 03Technical diligence cleared (build quality, snag, specifications).
  • 04Operational diligence cleared (management, costs, contracts).
  • 05Regulatory diligence cleared (zoning, short-let, foreign quota).
  • 06Reputational diligence cleared (developer track record).

Executive Summary · 2-minute read

Property Due Diligence Framework on one page.

What it solves

Full diligence spans legal, financial, technical, operational, regulatory and reputational pillars. Each pillar has a documented checklist and a red-flag escalation rule. Passing every pillar is a precondition for deposit; failing one is sufficient to walk.

Best suited for

First-Time Investor · Cashflow Investor · Capital Growth · Family Office

Difficulty / Time

Intermediate · 15 min read

Decision checklist

  • ▸Legal diligence cleared (title, encumbrances, EIA, permits).
  • ▸Financial diligence cleared (developer balance sheet, escrow, sinking fund).
  • ▸Technical diligence cleared (build quality, snag, specifications).
  • ▸Operational diligence cleared (management, costs, contracts).
  • ▸Regulatory diligence cleared (zoning, short-let, foreign quota).
  • ▸Reputational diligence cleared (developer track record).

Applied In

Where Property Due Diligence Framework operationalises across Core Investments research.

Related Frameworks

Other Core Investments frameworks that pair with this one.

From framework to numbers

Apply Property Due Diligence Framework in the Total Return Calculator.

Model the inputs from this framework against transparent Core Investments assumptions and download an institutional-grade report.

Open Calculator

Illustrative scenarios using calculator default assumptions. Outcomes vary with market conditions, operator performance and investor inputs.

Direct Access

Speak with Frank about Property Due Diligence Framework.

Request a confidential briefing on how Core Property Due Diligence Framework™ applies to your specific Thailand mandate, ownership structure and return objective.

Frank Satar
Chief Founder & Research Director
Thailand / WhatsApp
+66 65 551 3269
WhatsApp FrankCall FrankEmail FrankRequest Consultation

About the Author

Frank Satar

Chief Founder & Research Director · Core Investments

Frank Satar is the Chief Founder & Research Director of Core Investments. With more than three decades of experience across real estate, finance, hospitality and investment advisory, he specialises in analysing tourism demand, infrastructure growth and property market fundamentals across Thailand. His research is guided by a simple principle: We begin with demand, not property.

Published 2026-06-01Updated 2026-06-29View author profile →

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General disclaimer

Core Investments provides investment education, market intelligence, research and transaction-support services. Information published on this website is general in nature and does not constitute financial, investment, legal, tax or accounting advice, or personal recommendations. Investors should seek independent professional advice appropriate to their individual circumstances before making any investment decision. Past performance is not indicative of future results.

Forecast disclaimer

Forecasts, projections and forward-looking statements are based on information available at the time of publication and involve assumptions that may not materialise. Future events may differ significantly from projected outcomes.

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