Off-Plan vs Resale Over a 36-Month Window

A one-bedroom unit that will be worth $150,000 the day it hands over can often be reserved off-plan today for roughly $135,000. That $15,000 gap is where most buyers stop reading. It is also where most of them miscalculate.

The off-plan vs resale decision is usually settled on that discount alone. Over a 36-month holding window, the discount is rarely the number that decides the outcome. Three years is, not coincidentally, the length of a typical Phnom Penh construction cycle. That makes it the cleanest test available for putting the two strategies side by side, because it measures each one across the exact period the off-plan buyer spends waiting.

The number everyone anchors on

Off-plan pricing works because the developer is selling time and certainty, not just space. In exchange for committing capital before the building exists, the buyer receives an early price and a staged payment schedule. A common structure runs 30 percent on signing, further tranches tied to construction milestones such as foundation and topping-off, and a final balance at handover. The reservation is quick. The building is not.

The attraction is real. Capital is deployed gradually rather than in a single transfer, and the entry price sits below the completed-unit figure. The problem is that most buyers treat the discount as the return. It is not the return. It is the compensation for going without something else for three years.

Off-plan vs resale over the same window

The resale buyer starts earning on day one. A completed, title-held unit can be tenanted immediately, and Phnom Penh gross yields on quality stock sit in the range of 6 to 8 percent. On a $150,000 unit at 7 percent gross, that is roughly $10,500 a year before costs, and something closer to $8,000 to $9,000 net after management, vacancy and fees. Across 36 months, the net rental stream can reach $24,000 to $27,000.

Set that against the $15,000 off-plan discount and the ranking inverts. The resale owner, on illustrative figures, collects more cash over the same three years than the off-plan buyer saves on entry. The completed asset was doing paid work the entire time the off-plan unit was a line item on a construction schedule.

That comparison is incomplete on its own, which is exactly why it is worth running.

The capital efficiency reframe

The resale buyer earned more total dollars, but deployed far more capital to do it. One hundred percent of the purchase price was committed on day one. The off-plan buyer put down 30 percent and released the rest in tranches, leaving most of the capital free for most of the window.

Return on the asset and return on deployed capital are two different questions, and professional buyers keep them separate. Measured per dollar committed per month, off-plan can post the stronger internal rate of return even when resale wins on absolute cash. Measured on certainty of income, resale wins outright, because none of its return depends on a building being finished on time or to specification.

The discount is not a reward. It is the price of carrying completion risk and forgoing three years of rent. Whether that price is worth paying depends entirely on what the freed-up capital does in the meantime.

What the 2027 tax layer does to the exit

The exit is where the two paths diverge again. From 1 January 2027, capital gains on immovable property in Cambodia fall under a flat 20 percent rate on net gain, joining the framework already applied to other asset classes. Sellers may calculate the gain by documenting actual costs, or by taking a standard deduction of 80 percent of the sale price, which fixes the effective charge at close to 4 percent of the sale price.

This is where the off-plan discount can quietly reverse. A lower acquisition cost means a larger paper gain at sale. Under the actual-cost method, the buyer who entered at $135,000 rather than $150,000 shows a bigger taxable gain and hands part of the discount back at exit. The standard-deduction method neutralizes that penalty, since it ignores cost basis entirely and taxes a fixed slice of the sale price. The choice of calculation method, made years after purchase, can be worth more than the discount that started the whole exercise. A transfer tax of 4 percent already applies at purchase, with an exemption on units valued up to $210,000 through the current incentive period.

Liquidity and the asymmetry of the window

The final difference is the one least often priced. The resale owner holds a completed, registered asset that can be sold in a matter of weeks to a broad pool of buyers. The off-plan owner, mid-construction, holds a contract. Exiting before handover usually means an assignment or nominee sale, often subject to developer consent, into a thinner market of buyers willing to inherit construction risk.

So the 36-month window is not symmetric. For the resale buyer it is a period of optional exits. For the off-plan buyer it is closer to a lock-up. That optionality has value, and it belongs in the comparison alongside the headline discount.

The opportunity in off-plan is not the price. It is the structure behind the price, and the structure only pays when the capital it frees is put to work and the exit is planned before the entry.

Investors who model both paths across the full three years, income, deployment, tax and liquidity together, tend to spend less time second-guessing the decision later. The work rarely looks urgent at the reservation stage. It is usually the part that pays the most.

At My First Corner, this is the analysis we run before a client commits to either path. The conversation is available when it is useful.