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South of BKK1, transformed into one of Phnom Penh's most fashionable districts with luxury condominiums and the famous Bassac Lane dining alley.
Monthly temperatures, rainfall, and sea conditions
Monthly family budget estimates (USD)
A family in a 2-bedroom apartment in a modern but mid-range condo, using tuk-tuks and PassApp, children at a local bilingual school.
A family in a 3-bedroom condo or townhouse, one car, children at an international school.
A large villa or penthouse condo, driver, children at ISPP or top international school, gym and club memberships.
Tonle Bassac has transformed from a quiet residential area into Phnom Penh's most rapidly developing district. New high-rise condominiums, Aeon Mall, and the expanding Chinese-invested developments have brought modern amenities alongside rising rents. Prices fall between BKK1 and BKK3 levels. All transactions in USD.
Average monthly AQI (US EPA scale)
Yearly average AQI is 66. Best air quality Jan–Dec (best: Sep at 40).
Tonle Bassac is Phnom Penh's most dramatically changing neighborhood. Named after the Bassac River that forms its eastern boundary, this area has gone from a quiet, tree-lined residential district to a construction-heavy zone of rising high-rises and Chinese-invested developments. The opening of Aeon Mall 1 in 2014 was the catalyst, and since then, condominiums, office towers, and commercial projects have mushroomed. The neighborhood retains pockets of old Phnom Penh charm — the Bassac Lane entertainment strip, the leafy streets near the Independence Monument, and the riverside promenade — but the character is evolving rapidly.
Tonle Bassac's primary recreational asset is the riverside promenade along the Bassac River, which merges with the Mekong. The restored walkway offers cycling and jogging paths with views across the water to Koh Pich (Diamond Island). The Independence Monument park, at the intersection with Norodom Boulevard, provides a small but pleasant green space with shade trees and a circular walking path — popular for evening exercise. Koh Pich itself has been developed with wide promenades, gardens, and event spaces accessible via a bridge from Tonle Bassac.
Tonle Bassac's central location puts most of Phnom Penh within 15-20 minutes, but the neighborhood's main roads — particularly Norodom Boulevard, Street 51, and the approaches to Aeon Mall — experience significant congestion during peak hours. The area around Aeon Mall is particularly problematic, with the mall generating heavy traffic from across the city. Internal residential streets are quieter and navigable by foot or bicycle. Tuk-tuks are plentiful, and PassApp wait times are typically under 5 minutes.
Aeon Mall 1 dominates daily life in Tonle Bassac. The Japanese-owned shopping center includes a comprehensive supermarket with imported Japanese, Korean, and Western products, as well as local Cambodian goods. Beyond Aeon, Lucky Supermarket and several smaller markets serve the neighborhood. The traditional wet markets in Tonle Bassac are smaller than those in other areas but still offer fresh produce at local prices. Chinese grocery stores have multiplied, stocking products for the growing Chinese community. Home delivery via food apps and grocery delivery is expanding rapidly.
Tonle Bassac's eastern edge along the Bassac River benefits from river breezes that provide modest relief from the tropical heat, particularly in apartments facing the water. The area around the Independence Monument and the wider boulevards also catches more air circulation than the narrow streets of BKK3. However, the increasing density of high-rise construction is gradually reducing airflow in parts of the neighborhood, creating localized heat pockets between tall buildings.