The Secondary Market, Explained
The primary market is where a developer sells a unit for the first time. The secondary market is everything that happens after, and it is where most of the best available space actually changes hands.
The term gets used loosely, so it is worth defining precisely. The primary market is a developer selling a unit directly, for the first time, usually from a plan or an early-stage build. The secondary market is a unit changing hands after that first sale: an owner selling, an existing tenant subletting, a company outgrowing a space it once leased directly. Most cities with a mature commercial property sector do more of their volume in the secondary market than the primary one, simply because most usable space, at any given time, is already built and already owned by someone.
Why the best space is rarely the space that is listed
A unit that reaches a public listing has, by definition, not yet found a buyer through any other channel. That is not always because the unit is undesirable (timing, discretion, and existing relationships all keep good space off public portals), but it means the public listing pool is a biased sample, not a complete one. An owner who wants to sell quietly, without signalling to competitors or existing tenants that a change is coming, will not put a unit on a public portal at all. Those units only surface through a broker or advisor who already has the relationship.
What an advisory house does that a portal does not
A portal aggregates what has been listed. An advisory house maintains relationships with owners, developers and tenants over years, which means it often knows a unit is coming available before it is formally offered anywhere, and can bring a qualified buyer or tenant to an owner’s attention before the owner has decided to list publicly at all. This is a structurally different service from search: it is closer to a standing mandate than a single transaction.
What this means in practice for a buyer or tenant
Searching only public listings means competing for a smaller and more visible pool, often at a price that has already been shaped by public exposure. Working with an advisor whose relationships extend into the secondary market means access to a wider pool, including space that will never be publicly listed at all, at the cost of a more discreet process: fewer photographs circulated, fewer viewings scheduled casually, and more reliance on the advisor’s own judgement of fit before a viewing happens.
What it means for an owner
An owner considering a sale or a change of tenant faces the same trade-off in reverse. A public listing reaches the widest audience the fastest, at the cost of visibility to competitors, existing tenants, and the market generally. A private mandate reaches a smaller, pre-qualified audience more slowly, with full control over who knows the asset is in play at all.