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Spec suites lease faster and command a premium. Traditional leases run longer with less overhead. Both look compelling — but standard metrics like NPV, NOI and NER give you the wrong answer, just in opposite directions.

The fix is a metric that normalises across different economic lives and converts every cash flow into a single comparable number.

Most rent-controlled portfolios contain properties where the embedded rent upside will never materialize in your hold period. You're managing them, absorbing the costs — and handing the gains to whoever buys them next.

Can you tell which ones to sell, and which ones to buy more of?

Two buildings each have 10% embedded rent. Your model shows the upside unlocking over your 5-year hold. IRR clears your hurdle.

But here's what traditional models can't answer: Will that embedded rent actually materialize within your hold period—or does it belong to the next buyer?

One building will take only 54 months to unlock half the value, while another will take 132 months. Does your model treat them identically?

Tortoise or hare? In rent-controlled markets, lease incentives can be framed as a race: discount to market (the tortoise) vs. free rent (the hare).

The math seems straightforward—when will the hare catch up to the tortoise? But tenants who pay market rent behave much differently than tenants with discounts.

Given that this decision repeats hundreds or even thousands of times across large portfolios, wrong assumptions about tenant behaviour can quietly erode returns.

Tired of seeing your premium flex income ignored? The Top Slice method offers a simple, defensible way to reflect your property's full performance–without stepping outside accepted valuation practices.

Learn how splitting your NOI into “stable” and “premium” slices can give lenders, investors, and auditors a clear picture of your property's true worth.