It measures how many months of supply a market holds at the current absorption rate. The city number misleads because it averages price bands, micro-markets and project stages together. The number that matters is your own: unsold units divided by your own recent monthly sales, on your own project.
Every quarterly market report quotes it. Inventory overhang, expressed in months or quarters, is the headline number for how oversupplied a market is.
It is useful for context and close to useless for decisions about your specific project. Here is why both are true.
What it measures
Inventory overhang estimates how long it would take to sell all current unsold stock at the recent rate of sales.
The calculation is simple:
Overhang = unsold units ÷ average units sold per month
If a city has 60,000 unsold units and absorbs 2,000 a month, the overhang is 30 months. It is sometimes expressed in quarters instead.
Why the city number misleads
The figure averages across everything: luxury and affordable, delivered and stalled, prime and peripheral.
That average hides the fact that a well-located, completed, correctly-priced project in the same city may be selling in weeks, while a stalled project two kilometres away has not sold a unit in a year. Both are in the same denominator.
Which means a rising city overhang tells you something about market sentiment and almost nothing about whether your flats should be moving.
The number that actually matters
Run the same calculation on your own project:
Your overhang = your unsold units ÷ your units sold per month, averaged over six months
If you have 34 unsold flats and have been selling one a month, your overhang is 34 months. That is the number to act on — and if it is materially worse than it was during launch, something in your process changed rather than something in the market.
Compare it against your own history rather than the city. Your project competed successfully at some point; the useful question is what is different now.
When overhang is genuinely a market signal
There are cases where the city figure should change your plans: a sharp rise in new launches in your immediate micro-market, a large delivery of comparable stock nearby, or a shift in the corridor that drove demand.
Even then, the response is rarely a blanket price cut. It is usually to compete harder on the things a buyer experiences — response speed, clarity, and the quality of the visit — because those are the terms on which similar projects at similar prices actually separate.
Read the fuller argument in unsold inventory in Indian real estate.
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Frequently asked questions
What is inventory overhang in real estate?
The estimated time to sell all current unsold stock at the recent sales rate, usually expressed in months. Unsold units divided by average monthly sales.
Is a high overhang bad for my project?
Not necessarily. The city figure averages across very different projects. Calculate your own — unsold units divided by your monthly sales — and compare it against your project’s own history.
What is a healthy overhang?
There is no universal figure. The useful comparison is your project against itself at launch, not against a city average.