Legal Due Diligence is the most critical stage when buying property in Vietnam as a foreigner. Vietnamese real estate legislation is mature yet strictly structured. A project must satisfy several specific legal conditions before the developer is permitted to sell units—especially to foreign nationals.
In this article, we will examine each requirement in detail, including the exact documents that must be verified before entering into a transaction.
Land Use Rights Certificate (LURC / Pink Book for the project)
(Giấy chứng nhận quyền sử dụng đất – "Sổ hồng dự án")
This is the foundation of the entire legality of an under-construction property.
Land Use Purpose (Mục đích sử dụng đất)
It must state:
➡️ Đất ở — Residential land
This is the only land type suitable for:
- apartment construction
- apartment sales
- foreign ownership
If the land use purpose includes:
- "Commercial" (Đất thương mại dịch vụ)
- "Mixed-use" (Đất hỗn hợp)
- "Other purposes" (Mục đích khác)
➡️ Foreigners can still buy off-plan units, but Pink Books for foreign ownership may not be issued.
This is a critical nuance.
Land Tenure (Thời hạn sử dụng đất)
It must state:
➡️ Lâu dài — Long-term ownership (permanent land use rights)
This means:
- Vietnamese buyers → unlimited ownership
- Foreign buyers → 50-year ownership on the Pink Book (renewable)
If the tenure is not "long-term", the project is not eligible for Pink Books issued to foreigners.
Land User (Người sử dụng đất)
The land must be registered to:
➡️ the developer, or
➡️ an affiliated entity owned by the developer
If registered under a different company, the developer must provide:
- proof of equity ownership
- M&A documents
- internal approval
- business registration certificates
- land transfer/assignment agreements (if applicable)
This is especially important in cases where:
- the land bank was acquired from another company
- the land belonged to a state-owned enterprise
- the project was transferred during restructuring
Foreign buyers must be 100% certain that the developer has the legal right to build and sell on the land.
Construction Permit (Giấy phép xây dựng)
The Construction Permit is one of the most vital documents in Vietnam. It confirms that the government approves the project, technical parameters, and scale. Foreign buyers must ensure that all project parameters match exactly across:
- the construction permit
- marketing materials
- the SPA
- the physical construction
Check the following:
- Number of floors
- Number of blocks/towers
- Building height (meters)
- Building density
- Number of basements
- Total number of units
- Allocation between commercial and residential spaces
- Setback requirements
- Architectural design
Why this matters:
If a marketing brochure lists 45 floors but the permit states 37 floors → red flag. Such discrepancies must be identified immediately.
Permit to Sell Future Housing
(Giấy phép bán nhà ở hình thành trong tương lai)
This is the permit that legally allows the developer to:
- start marketing
- collect deposit payments
- sign the SPA
- receive installments
- sell units prior to completion
To obtain this permit, the developer must submit:
✔ Foundation completion certificate
✔ Financial guarantee from a reputable bank
✔ "Technical completion" documentation
This permit is mandatory. Without it, the developer cannot legally sell off-plan housing.
Foreign buyers must request a copy or confirmation.
Foreign Ownership Approval
(Chấp thuận cho người nước ngoài được sở hữu)
Vietnam limits foreign ownership in residential buildings:
- Maximum 30% of units in an apartment building
- Maximum 250 houses per ward-level area
Additionally, certain projects may be restricted due to:
- proximity to military zones
- national security considerations
- critical infrastructure
Therefore, developers must secure a separate approval explicitly permitting sales to foreigners.
If approval already exists
Great — the project can immediately sell units to foreigners.
If approval has NOT YET been obtained
This is common for early-stage pre-sales.
In this scenario, foreign buyers must ensure that the developer offers one of the legally acceptable mechanisms:
Deposit Agreement with Full Refund Guarantee
The deposit agreement must specify:
- expected date for receiving foreign ownership approval
- deadline for signing the SPA
- unconditional 100% refund if approval is not granted
- refund timeframe (typically 7–30 days)
This is the most common model.
Long-Term Lease + Conversion Clause
If the developer has not yet secured approval but wants to accommodate foreign buyers, they may offer:
➡️ A long-term lease agreement now
➡️ Automatic conversion to an SPA once foreign ownership approval is granted
The contract must include:
- binding developer obligation to convert to SPA
- timeframes
- refund liabilities
- full right assignment conditions
This mechanism is fully legal and utilized by several major developers.
Legal Title for Completed Properties
Foreign buyers purchasing completed properties face two scenarios:
Scenario A — The seller only has an SPA (No Pink Book yet)
The property is finished and handed over, but the Pink Book is still in process. In this case:
- foreign buyers must verify project-level approvals
- confirm that future Pink Books will be available to foreigners
- review all invoices related to taxes
- check handover records
The buyer ultimately becomes a party to the SPA via an assignment.
Scenario B — The seller already holds a Pink Book issued to a foreigner
This is the strongest scenario. Why?
Because if a Pink Book has already been issued to a foreign owner, then:
- the project is eligible for foreign ownership
- the unit is eligible for foreign ownership
- approvals are already in place
- there are no quota or legal issues
This is the most secure form of purchasing completed property.
Additional Documents for Verification
Foreign buyers should ensure the developer provides:
1. 1/500 Detailed Master Plan (Quy hoạch chi tiết 1/500)
Confirms project zoning and approved land usage.
2. Investment Registration Certificate (IRC)
Confirms that the developer is authorized to invest and construct the project.
3. Environmental Impact Assessment (EIA)
Approval demonstrating environmental compliance.
4. Developer Corporate Documentation
- Business Registration Certificate
- Tax code
- Authority of the legal representative
5. Bilingual Draft SPA
Vietnamese + English.
6. Foreigner Quota Report
Shows how many units remain available for foreigners.
Key Takeaways
Legal due diligence in Vietnam is structured and document-based. Foreign buyers must ensure that:
- the land is residential and long-term
- the construction permit is valid and compliant
- the permit to sell off-plan property has been issued
- foreign ownership approval is confirmed
- a foreign quota is available
- completed properties match the buyer's nationality restrictions
With proper legal due diligence, the process is secure, transparent, and fully compliant with Vietnamese law.