Planning to Build a Home in Siem Reap? Check the Legal Requirements Before Buying Land

Building your own home in Siem Reap can be an exciting prospect. It gives you the freedom to choose the location, plan the layout and create a property that suits the way you want to live.

However, buying a suitable-looking plot does not automatically mean you can build whatever you want on it.

Before purchasing land, finalising architectural plans or beginning construction, buyers should confirm the legal and planning requirements that apply to the property. These may affect the position, size, height and type of building that can be approved.

Cambodia’s Ministry of Land Management, Urban Planning and Construction issued Circular No. 002 on 30 June 2025 to clarify the implementation of building setback requirements and construction permit procedures under subnational administrations.

The circular applies nationally, including to projects in Siem Reap, and is particularly relevant to landowners, homebuilders, developers and buyers considering land for future construction.

What Does Circular No. 002 Cover?

Circular No. 002 focuses on two main areas:

1. Building setbacks: The minimum space that may need to be maintained between a building and roads, property boundaries, neighbouring land or public areas.
2. Construction permits: The process for submitting, reviewing and approving construction applications through the relevant local authority.

The circular supports the implementation of Cambodia’s existing construction and urban-planning framework. It is intended to make the approval process clearer and more consistent while supporting safety, orderly development and appropriate land use.

Building Setbacks: Why the Position of a House Matters

A setback is the required distance between a proposed building and a road, boundary or adjoining property. These spaces can be important for access, ventilation, safety, drainage, streetscape planning and potential public infrastructure.

Where an approved setback line, land-use plan or future road-expansion plan already exists, a proposed building must comply with that plan.

For sites without an existing approved setback line, Circular No. 002 provides general requirements based on factors such as the type of building, the size and shape of the plot and the surrounding development.

For buildings of eight floors or fewer, the circular generally provides for:

• A minimum front setback of 4 metres from the road
• A possible minimum of 2 metres in certain commercial or mixed-use areas, or for qualifying designs that preserve ground-floor pedestrian space
• Minimum rear and side setbacks of 2 metres in general cases
• Modified requirements for smaller plots and linked houses, depending on the dimensions and existing site conditions

These figures should not be treated as automatic approval for every property. The applicable requirement may change according to the approved local plan, road classification, plot dimensions, adjoining buildings and any special controls affecting the location.

Which Authority Handles the Construction Permit?

The authority responsible for reviewing a construction permit generally depends on the size of the proposed construction:

• Construction of 500 sqm or less: Applications generally fall under the relevant city, district or khan administration.
• Construction between 500 sqm and 3,000 sqm: Applications generally fall under the relevant municipal or provincial administration.

Applications are generally submitted through the appropriate One Window Service Unit. The relevant authority will confirm the required documents, review process and whether any additional approvals apply to the proposed development.

Larger, specialised or more complex developments may be subject to different approval procedures and additional requirements.

Why Buyers in Siem Reap Need to Check the Site First

Siem Reap presents additional considerations because planning controls can vary significantly by location.

Depending on the property, a proposed home may be affected by:

• Building height limitations
• Protected or heritage-area controls
• APSARA National Authority requirements
• Existing or proposed road setbacks
• Land-use and zoning restrictions
• Drainage, access and infrastructure plans
• The dimensions and legal boundaries recorded on the title
• The permitted use of the land

A plot may be attractive, well located and large enough for the intended house, yet still be unsuitable for a particular design. Confirming these issues before purchase can help a buyer avoid redesign costs, permit delays or discovering that the intended project cannot proceed as planned.

Buyers who are unfamiliar with Cambodian title classifications may also want to review our guide to Cambodian property titles before committing to a site.

The construction requirements apply to all building projects. Foreign buyers, however, must also consider how their rights over the land will be legally secured.

An Additional Consideration for Foreign Buyers

Foreign buyers considering land on which to build have an additional matter to address: the ownership structure.

Under Cambodian law, foreign nationals cannot directly own land in their personal name. This does not necessarily prevent a foreign buyer from securing property rights or undertaking a homebuilding project, but the appropriate legal structure must be considered before land is purchased or money is committed to construction.

Depending on the circumstances, options may include a long-term lease, a properly established trust, a land-holding company or another legally documented arrangement. Each option carries different costs, responsibilities and levels of control.

Our Property Ownership Guide for Foreigners explains the principal ownership structures available in Cambodia. Buyers can also read Buying Property in Siem Reap: Questions Foreign Buyers Are Asking for practical answers about titles, ownership and purchasing property locally.

The ownership structure and construction feasibility should be examined separately, but both must be confirmed before proceeding. Securing rights over a property does not by itself guarantee that the intended building will receive approval.

What Should You Check Before Buying Land to Build?

Before signing a sale agreement or paying a substantial deposit, buyers should try to confirm:

1. The title and registered boundaries
   Check that the title is valid, the seller has the authority to sell and the physical boundaries correspond with the official records.
2. The proposed use of the land
   Confirm that the intended residential or commercial use is compatible with the applicable planning requirements.
3. Road access and future road plans
   Determine whether existing setbacks, road reservations or proposed infrastructure could reduce the buildable area.
4. The practical buildable footprint
   Apply the likely front, side and rear setbacks to understand how much of the land may actually be available for construction.
5. Height and design restrictions
   Check whether the area is affected by special height, heritage or architectural requirements.
6. The responsible permit authority
   Identify which administration will assess the application and what documentation will be required.
7. The ownership structure
   Foreign buyers should establish a suitable and properly documented structure before acquiring land-linked rights or funding construction.
8. Professional technical advice
   An architect, engineer or qualified construction professional should assess whether the proposed design is suitable for the site and capable of meeting the applicable standards.

Due Diligence Should Come Before the Design

It is tempting to begin with architectural plans, renders and construction quotations. In practice, the land and its legal limitations should be assessed first.

The early questions are straightforward but important: Who legally owns the property? Where are its recognised boundaries? What can be built there? Which authority must approve it? Are there any restrictions that affect the intended design?

Answering these questions early gives the architect a realistic brief and allows the buyer to make a more informed decision before committing further funds.

For a broader explanation of land ownership and legally recognised structures, see Understanding Land Ownership in Cambodia: Key Takeaways from Legal Experts.

Speak With IPS Before You Purchase or Build

If you are searching for land or planning to build a home in Siem Reap, IPS can help you evaluate the property before you proceed.

Our team can assist with property searches, title and ownership considerations, initial site questions and coordination with the appropriate legal, architectural and construction professionals. The objective is to identify important issues early, while there is still time to choose the right property or adjust the plan.

Contact IPS  before purchasing land or beginning a construction project in Siem Reap.