The Knong Psar Model: Development With a Human Heart in Cambodia Urban Planning

A significant debate is unfolding around Cambodia’s approach to urban development, sparked by an open letter published in June 2026 on the Knong Psar model — a development philosophy that advocates for community-centred planning with what its proponents call “a human heart” [S-108].

The letter, published in the Khmer Times, argues that Cambodia’s rapid urban transformation risks losing the social fabric and community character that makes its neighbourhoods function, particularly as large-scale developments displace traditional village and market-area communities.

What is the Knong Psar model?

Knong Psar — literally “inside the market” in Khmer — refers to the traditional Cambodian urban pattern where residential, commercial and community life are interwoven within walking distance of a central market or public space. Unlike the gated-borey model or large satellite-city developments that segregate uses and residents by income, the Knong Psar model is characterised by:

• Mixed-use, walkable neighbourhoods where shops, homes and services coexist
• Incremental, owner-driven construction rather than master-planned estates
• Strong social networks built on long-term proximity and shared public space
• Affordable entry points for lower-income households through smaller plots and informal arrangements

The open letter argues that this model, while less efficient on paper than large-scale planned developments, produces more resilient communities and better outcomes for the majority of urban residents who are not served by the formal property market.

The tension with modern development

Cambodia’s property boom over the past decade has been dominated by two models:

1. Gated boreys — landed housing estates on the urban fringe, targeting Khmer middle-class buyers with security, amenities and aspirational living
2. High-rise condominiums — foreign-quota strata towers in central Phnom Penh, aimed at international investors and wealthy locals

Both models tend to replace or bypass the traditional Knong Psar pattern, creating physically separated enclaves that fragment the urban social fabric.

The proponents of the Knong Psar model argue that this fragmentation has costs that are not captured in development economics:

• Displacement of low-income households to distant suburbs with poor access to jobs and services
• Loss of public space and informal economic activity that sustains local livelihoods
• Weakening of community networks that provide social safety nets in a country with limited formal welfare

What this means for property investors

For investors in Cambodian property, the Knong Psar debate offers a useful lens for evaluating development risk:

• Community resistance is a real risk. Large developments that displace established communities face increasing scrutiny and potential delays. The open letter is part of a growing conversation about development rights and community voice that could translate into policy or regulatory changes.
• Mixed-use locations may hold their value better. The traditional Knong Psar areas — central market neighbourhoods with organic mixed-use character — have proven resilient through multiple property cycles. Their walkability and social infrastructure are irreproducible assets.
• The borey model faces long-term headwinds. If urban planning trends shift toward densification and mixed-use, fringe boreys dependent on car commuting could face price pressure as fuel costs rise and younger buyers prefer central locations.

The Knong Psar debate is ultimately about what kind of city Phnom Penh wants to become. For property buyers, the safest response is to favour locations where the traditional urban fabric is strong enough to retain its character through the development cycle — central market-adjacent neighbourhoods with genuine community identity are harder to replicate than another gated estate.

Sources

[S-108] Khmer Times — “An Open Letter on the Knong Psar Model: Development with a Human Heart” (June 13, 2026) https://www.khmertimeskh.com/501919833/an-open-letter-on-the-knong-psar-model-development-with-a-human-heart/