Why Owners Get Approached in the First Place

Unsolicited outreach isn't random. Developers and assemblage buyers systematically scan the city for underbuilt sites, strategically located parcels, and buildings that look like they could support a larger or different use than what's currently there — and then they reach out directly to ownership, often before a property is ever formally marketed. Brokers, separately, sometimes contact owners on behalf of a specific buyer they already have lined up, rather than casting a wide net. In both cases, the outreach usually means someone has already done enough homework to believe your site is worth pursuing — which is useful information in itself.

The Real Risk: Anchoring to the First Number

The biggest mistake an owner can make with an unsolicited offer is treating the first number as the market. Offers that arrive without a formal marketing process can be opportunistically priced on the low side, on the assumption that an owner without a point of comparison will simply anchor to whatever number shows up first. But the opposite can also be true: occasionally a buyer's offer genuinely comes in above typical market pricing, because your specific site solves a specific problem for them — an assemblage they're assembling, air rights they need for an adjacent project, or a physical layout that's unusually well suited to a conversion they're planning. Without an independent read on your property's value, you have no way to tell which situation you're actually in.

The same unsolicited offer can be a lowball or a premium bid depending entirely on what the buyer needs your site for — and that's exactly the piece of information the offer letter never tells you.

A Practical Framework for Evaluating Any Offer

Before responding to an unsolicited offer, it's worth benchmarking it against two separate numbers:

  • An income-based valuation — what the property is worth based on its actual current net operating income and prevailing cap rates for comparable assets.
  • A development-based valuation — what the site is worth based on its buildable square footage, zoning, and any unused development potential, which is often the more relevant number if the buyer is a developer.

Comparing the offer to both gives you a real sense of where it falls — whether it's below either number, in line with one but not the other, or genuinely above what a standard valuation would suggest, which is itself a signal that the buyer sees something in the site that a general valuation wouldn't capture.

Why a Real Valuation Is Leverage, Not Just Information

Having an independent, credible valuation in hand does more than tell you whether to say yes or no — it changes the negotiation itself. An owner who can speak to their property's actual income value and development potential is a much harder counterparty to lowball than one who's negotiating off gut instinct. That leverage matters whether you ultimately decide to negotiate further with the buyer who approached you, use the offer as a reason to test the broader market, or simply decide the number isn't worth engaging with at all.

What to Do Next

An unsolicited offer doesn't obligate you to sell, and it doesn't obligate you to respond on the buyer's timeline either. The smartest first move is almost always the same regardless of how strong or weak the offer looks on its face: get your own number before you reply to theirs.