Phnom Penh Condo Project Density and Shared Space

Two Phnom Penh condo listings can both advertise a large site, dozens of facilities and an impressive tower height while describing completely different boundaries. One land figure may cover a residential tower only; another may cover offices, hotel space, retail and landscaped public areas as well. Dividing the apartment count by whichever area appears first produces a precise-looking number, but precision is not the same as comparability.

For this page, structural intensity means residential apartments per 1,000 m² of land that belongs to the same clearly defined residential scheme. Time Square 6 is a straightforward example in the available material: 370 apartments and a 977 m² site are presented as one residential project. Picasso City Garden, Picasso Sky Gemme and Time Square 9 also publish unit and site figures on the same project basis. Within those clean cases, the range is wide: roughly 131 units per 1,000 m² at Picasso City Garden and about 379 at Time Square 6. That tells us how differently towers use land; it does not tell us which building will feel calmer, better managed or more private.

A similar ratio can still produce a very different building. One tower may dedicate several levels to parking and place leisure facilities on separate amenity floors, while another may concentrate most functions in a rooftop club. A mixed-use address can add another layer because residents may share arrivals, parking, gardens or commercial podium space with people who do not live there. The useful comparison is therefore a bundle of facts: apartments, site boundary, tower arrangement, vertical circulation and the actual role of the shared spaces.

The ratio cannot reveal noise, crowding at breakfast time, corridor privacy or management quality. Those depend on floor plans, apartments per corridor, sound separation, occupancy, short-stay rules, operating standards and how the facilities are actually used. Project density is best treated as a scale indicator that points to the next questions, not as a comfort score.

This is not a market ranking. It combines projects with a clean calculation basis and cases where the ratio is deliberately left unknown.

J Tower 3 shows how a familiar site figure can become a bad denominator. The project’s current official website gives 360 units on 1,836 m² of land. Knight Frank’s H1 2023 launch report described the tower as being built on 1,993 m², and that older figure still appears on some public project pages. None of the accessible material explains whether the change reflects a revised boundary, a design update or a different measurement convention. Until that link is documented, publishing one density number would hide a real source conflict.

Vue Aston adds a second problem. Its current official design page describes a freehold condo, hotel, office and commercial complex with 4,999 m² of land and 857 condo units. IPS currently lists 5,358 m² and 895 units. A newer page does not automatically settle which project version each figure belongs to, and the land is mixed-use in any case. Using the whole plot as the denominator for residences alone would create a ratio that is not directly comparable with a standalone residential tower.

ODOM is a cleaner example of why the boundary itself matters even when the project wording is internally consistent. The current ODOM material states 138 residences and approximately 5,000 m² for the masterplan. That masterplan also contains offices, retail, hospitality and public-facing spaces connected through the podium and shared circulation. The site figure is useful for understanding the destination, but it is not published as a residential-only land parcel. Leaving the residential density blank is therefore more informative than forcing a number.

Labels deserve the same scrutiny as the numbers. Site area, land area, project area, construction area and gross building area are different concepts. A gross building figure measures stacked floor space rather than land. A phase area may be perfectly valid for one tower but misleading when paired with units from an entire masterplan. The denominator has to describe the same physical boundary as the residential count.

Recency helps only after the scope is understood. A later source may reflect a genuine design revision, but an older document may still be describing a different phase or boundary correctly. When two values can both be true under different definitions, the right editorial choice is to preserve the uncertainty and explain why the ratio stops there.

A long amenities list is a poor comparison tool because two projects can count completely different things. Picasso City Garden’s current official facilities include pools, a gym, conference space, a sky garden and a sky bar in an operating building. Picasso Sky Gemme markets a much broader programme with wellness, coworking, games, family space, pools, gardens and entertainment areas. The distinction is not that one list is better. One is an existing set of facilities; much of the other remains part of a project under construction.

The more useful approach is to sort shared space by function. Operational space covers lobbies, security, access, parking and management. Health and fitness includes pools, gyms, yoga, sauna and spa. Social and work space covers lounges, meeting rooms, libraries and coworking. Family and outdoor space includes play areas, gardens, terraces and recreation rooms. That grouping says more about how a building is meant to operate than a raw amenity count.

Mixed-use projects need an additional access layer. Vue Aston combines condominium, hotel, office and commercial uses while also advertising restaurants, cafés, shared office space, spa and leisure facilities. ODOM links homes to offices, retail and hospitality through a connected podium and wider destination concept. A buyer needs to know which areas are resident-only, which are shared with other users and which are commercial services that happen to sit in the same development. If the access rule is not published, the facility should not be presented as an exclusive residential benefit.

Capacity and status matter just as much as the label. A pool can be generously sized or undersized for the number of homes using it. A coworking area may be a quiet room with meeting space or a few tables in a social lounge. A cinema, library or sky garden does not by itself prove higher rent, better comfort or easier management. For this comparison, the useful facts are the function, the users and whether the space is operating, planned or unclear.

Lift counts become meaningful only after one question is answered: which homes does that lift group actually serve? J Tower 3 publishes eight lifts for 360 units. Secondary building profiles show six lifts at Time Square 6 for 370 units and seven at Time Square 9 for roughly 600. Yet the public material does not consistently separate passenger and service lifts or show whether every car serves every residential floor. Dividing the entire project by the headline lift count would therefore imply an operating structure that has not been documented.

Parking has a similar boundary problem, although some raw ratios can be calculated. Picasso City Garden publishes 77 spaces for 144 apartments, or about 53 spaces per 100 homes. Time Square 6 lists 100 car spaces for 370 units, around 27 per 100. J Tower 3 states 252 spaces for 360 units, about 70 per 100, but its official page also says those spaces are leased. None of these ratios proves a shortage or surplus because car ownership, apartment mix, guest rules and pricing differ from building to building.

A number of parking floors is not a substitute for a space count. The current Time Square 9 building profile describes parking across five floors without a confirmed number of bays. Ramps, columns, technical rooms, motorcycle areas and fire circulation can change capacity substantially. In a mixed-use project, a second question follows: are the spaces reserved for residents or shared with hotel, office and retail users?

These figures are useful as prompts for operational due diligence. Lift performance depends on speed, stops, occupancy, dispatch logic and service traffic. Parking depends on allocation, visitor policy, fees and the number of resident vehicles. The project specification can tell you what to investigate, but actual waiting times and parking pressure require either operating evidence in a completed building or a proper traffic and parking plan for one still under construction.