Market sizing for a local business (skip the TAM slides)
Plans for neighbourhood businesses keep opening with the national market — an industry worth billions, sliced into pie charts. When I read those pages on the lending side, they told me exactly nothing about whether this shop, on this street, could cover a monthly loan payment. Lenders size markets in blocks, not billions.
Why the TAM slide falls flat
TAM, SAM, SOM — total, serviceable, obtainable market — is a framework built for equity investors hunting scale. Their question is "how big could this get?" A lender's question is smaller and harder: "is there enough demand within reach of this specific location to clear break-even, month after month?" A billion-dollar industry answers the first question and dodges the second. Your café will not serve Canada. It will serve a ten-minute walk.
Draw the trade area first
Start with the distance a customer will realistically travel: a few blocks for coffee, a ten-minute drive for a mechanic, twenty minutes for a specialty retailer people seek out. Name the boundary explicitly in the plan — "our trade area is the area bounded by the harbour, the highway, and the university" reads like someone who knows their ground. Everything you count next gets counted inside that line.
Count something you can defend
Households in the trade area, from census or municipal data. Workers within walking distance of the door. Cars past the site each day, from a traffic count. The number of direct competitors already serving the same area, from a map you made yourself. None of this requires a research budget — an afternoon of walking the street with a notebook is legitimate market research, and it produces numbers a lender can actually interrogate.
I never declined a plan because its market was small. I declined plenty because the owner clearly didn't know what their market was.
Then work backwards from break-even
This is the strongest market-sizing move available to a local business, and it inverts the usual direction. Instead of "the market is huge, we only need a sliver," compute what you need: if break-even is 85 customers a day, and there are 4,000 workers plus 2,600 households in the trade area, you're asking the lender to believe a small, countable share of a countable population shows up. That's a claim someone can check — which is precisely what makes it credible.
Say what share you're claiming, and why
Finish the section by naming your capture assumption and grounding it: the nearest competitor is a fifteen-minute walk away, the area currently has no option open before 7 a.m., the anchor employer across the street has no cafeteria. One honest paragraph of "here's why these particular people choose us" does more work than any pie chart — because it's about your street, and nobody else's plan could contain it.
Size a market a lender will believe
LenderReady builds your plan through a conversation — a market section grounded in your actual trade area and break-even math, not industry pie charts, with every assumption stated where a lender can check it.
Build my planLenderReady is an educational service, not a lender, broker, or financial advisor. Lending criteria vary by institution and change over time; treat this as a starting point, not a guarantee.