Por Sen Chey Real Estate: What the Airport's Departure Changed

At midnight on 9 September 2025, the old Phnom Penh airport handled its final flight and closed after roughly seventy years. Commercial aviation shifted south to the new Techo International Airport in Kandal. Por Sen Chey, the district that had lived around that runway since 1959, woke up as central city land with no airport inside it.

Most people took the closure as bad news, the district losing the thing that defined it. Look at what an airport actually does to the land around it, and the opposite reading holds up better.

The district kept everything except the runway

Por Sen Chey was the gateway for decades. The old airfield covered more than 386 hectares along Russian Federation Boulevard, about ten kilometers west of the river. National Road 3 and National Road 4 run through it toward the coast and the southern provinces, and the Phnom Penh Special Economic Zone sits inside its boundaries. By 2023 more than two thirds of the district was already built or paved. None of that left when the planes did.

What changed is the largest single parcel. The government has said the former airfield will not be sold and will be preserved and redeveloped as a civic and commercial site rather than broken up. A district rarely receives a serviced, central tract of that size to reimagine. Por Sen Chey just did.

An airport is also a ceiling

An operating international airport controls far more than its own fence line. Flight paths impose height limits on the surrounding area, and noise zones shape what can be built beneath them. For seventy years, how much a developer could build across much of Por Sen Chey was decided by an approach path, not by the market. With aviation moved thirty kilometers south, those physical limits have eased in the same motion. For a lot of this land, the airport was a lid, and the lid has lifted.

The city is leaning south

The move is not an isolated event. Government planning has pointed the capital's growth toward the south and southwest, tying together the ring roads, the Phnom Penh to Sihanoukville expressway, the planned Funan canal and the new airport. Ring Road 3, a 53 kilometer belt finished in 2023, links the city to Kandal and feeds National Road 2 toward Techo. Por Sen Chey no longer sits under a runway. It sits on the road network pulling traffic toward the runway's replacement.

Cambodia keeps the cost of waiting low. Transfer tax on registered property runs at 4 percent, and the annual immovable property tax is 0.1 percent applied to 80 percent of assessed value above a modest threshold. Because the economy runs on US dollars, a foreign buyer holding here carries no local-currency risk while the redevelopment plans take shape. In a 2026 market that has reset lower, the arithmetic of taking an early position and waiting is gentle by regional standards.

What to check before you commit

This is not raw land speculation. Most of the district was urbanized before the closure, so the real question is not whether it develops but what it is now allowed to become. A few checks come first.

• Title should be clean and the registered owner name exact, verified before any deposit clears.
• Current zoning and height allowances should be confirmed against their post-closure status, since that is the variable that just moved.
• Road frontage and distance to the redevelopment footprint should be mapped, because value concentrates nearest the anchor.
• For a condominium, the 70 percent foreign freehold cap and the ground-floor exclusion under the 2010 co-ownership rules still decide what a foreign buyer can hold.

The airport was never the asset. The land it stood on and the roads that fed it were, and both are still there. Buyers who read a district before it re-rates usually spend less time deciding once the plans are public.

This is general market education, not personal financial advice, and no outcome is guaranteed. If you want to walk through title and zoning on a specific Por Sen Chey unit, our team is happy to talk it through with no pressure to buy.