Gas Station Feasibility Study: What's Actually in an RSA

Before you buy the dirt or sign the note, one document tells you whether a fuel-and-convenience site will actually work: the feasibility study. Here's exactly what goes into one — and how to read every number.

What a gas station feasibility study is for

A gas station feasibility study — usually delivered as a Retail Site Analysis (RSA) — answers a single question: how is this site likely to perform if it's built or upgraded as proposed? It projects the three revenue engines of a modern c-store — fuel volume, inside-store sales, and foodservice — and grounds each in the site's traffic, competition, trade area, and the facility itself.

It exists for two audiences. First, you, deciding whether to commit capital. Second, your lender, deciding whether to underwrite it. Because gas stations are special-use properties, banks and SBA lenders lean heavily on an independent feasibility study before they'll finance a purchase, ground-up build, or major remodel.

The sections of an RSA, in order

1. Executive summary & headline numbers

The top of the report reads the site in plain English and surfaces the numbers that matter most: a site-strength score, projected Year-1 fuel gallons per month, inside sales per month, foodservice per month, and gross profit. If you only had thirty seconds, this is the whole story.

2. Fuel volume — as a range, not a point

A credible study never gives you one fuel number. It gives you a low, mid, and high case across three years. The mid is the best estimate; the range brackets execution and ramp-up. Lenders underwrite to the low-to-mid band, so that spread matters more than the headline.

3. Inside sales & gross profit at your margins

Store merchandise, foodservice, and car wash roll up into gross profit — but only at your retail margins. A good report separates the volume (what the model projects) from the margins (your pricing assumptions), so you can see exactly which is which.

4. Market & trade area

Population, households, median income, and daytime workforce — measured in rings around the site (typically 0.5 to 1.25 miles, plus a drive-time). This is the demand base that has to convert into store trips.

5. Competition

Every nearby station scored on facility quality and distance, so the model can weight how much each one pulls from your trade area. The best reports also flag permitted-but-not-yet-built competitors — a forward risk a windshield survey would miss.

6. Unit economics — the sanity check

Fuel transactions per day, inside customers per day, inside dollars per gallon, and sales per square foot — each sanity-checked against convenience-industry norms. This is where a serious study proves the fuel and inside numbers reconcile instead of contradicting each other.

7. Methodology & sources

The part a lender reads closely: where every figure comes from (Census, DOT traffic counts, real competitor data) and how the model turns them into a projection. If a report can't show its work, it can't be defended in underwriting.

Fuel volume vs. inside sales: don't conflate them

The most common mistake is treating gallons and inside dollars as the same signal. They aren't. A diesel-heavy travel center can move enormous gallons with modest inside sales; a car-oriented store in a dense suburb can pump less fuel but carry the deal on merchandise and foodservice. A real feasibility study models the two on separate tracks and then reconciles them — which is exactly why the unit-economics section exists.

What a feasibility study is — and isn't

Knowing where the study ends is what keeps it credible. It sizes the opportunity honestly; your lender takes it from there.