The 100% Commission Real Estate Brokerage in Port St. John.

The Port St. John market right now (mid-2026)

Port St. John is an unincorporated Brevard County community on US-1, and the dependable read on its market comes from county single-family data. As of June 2026 the Brevard single-family median was $400,000, up 2.6% year over year, with supply at just 3.6 months, down from 4.6 months a year earlier — squarely a seller's market (Space Coast Association of REALTORS, June 2026). Closed single-family sales rose 7.8% year over year that month while new listings fell 3.4%, and cash sales jumped 15.1% (Space Coast Association of REALTORS, June 2026). Earlier in the year the county single-family median sat at $375,000 (Space Coast Association of REALTORS, January 2026), so the mid-year figure reflects a firming, not a slide.

Homes here still move on price. County single-family listings averaged about 44 days on market in spring 2026 (Space Coast Association of REALTORS, April 2026), and correctly priced sellers received a median 95.8% of original list price in the first quarter (Florida Realtors Research Center, First Quarter 2026). Port St. John's own CDP median tracks a notch under the county — Movoto put the community's median list price near $389,000 in mid-2026 (Movoto, June 2026), and Redfin recorded a Port St. John sale median around $300,000 in early 2025 (Redfin, February 2025) — but the CDP's thin monthly volume makes the county single-family number the honest anchor for commission planning.

Affordability meets aerospace: who is buying in Port St. John

Port St. John's whole story is attainability on the Space Coast. While Cocoa Beach, Merritt Island, and Viera command a premium, Port St. John's inventory of 1970s-and-later block ranches, split-plans, and canal-access lots comes in below the county single-family median (Space Coast Association of REALTORS, June 2026), which makes it a genuine first-time-buyer and move-up market rather than a second-home market. That matters when the county median already sits at $400,000 — a buyer priced out of the beaches or Viera can still own here.

Demand is anchored by aerospace employment. Port St. John is a short commute up US-1 and across the causeways to Kennedy Space Center and Cape Canaveral Space Force Station, and the SpaceX, Blue Origin, and launch-services buildout across the Space Coast has kept a steady stream of engineers, technicians, and contractors looking for reasonable housing within driving distance of the pads. Those are dual-income, credit-qualified buyers — exactly the profile that closes financed single-family deals in the $300,000s and $400,000s. For an agent, that means a reliable pipeline of first-time and relocating buyers, not a boom-and-bust luxury niche, and it is why cash share (up 15.1% year over year in June) still trails the county's investor-heavy coastal markets (Space Coast Association of REALTORS, June 2026).

Indian River, flood and insurance, and the US-1/I-95 commute

Port St. John fronts the Indian River Lagoon on its east side, and that geography drives the deal work here. Riverfront and canal-access homes off US-1 carry a water premium but also flood-zone, elevation, and windstorm-insurance questions that have to be handled before contract — the same statewide insurance pressure that reshaped every Florida coastal market applies to the lagoon side of Port St. John. Agents who can read a flood zone and an elevation certificate close near the water; the ones who cannot tend to steer buyers to the drier interior blocks west of US-1, where the bulk of the affordable single-family stock sits.

Location is the other selling point. Port St. John is strung along Fay Boulevard and US-1 between Cocoa to the south and Titusville to the north, with Interstate 95 a few minutes west for commuters heading to Orlando or Melbourne. That mid-county position — minutes from Kennedy Space Center, a straight shot down US-1 to Cocoa and the 528 to Orlando — is what lets a modestly priced Port St. John home serve aerospace, healthcare, and Orlando-commuting households at once. With supply at just 3.6 months and closed sales up 7.8% year over year (Space Coast Association of REALTORS, June 2026), the well-priced interior inventory is exactly where the fastest contracts happen.

What the $499 flat fee means for a Port St. John agent

Here is the math at the real number. A Port St. John agent closing 10 single-family sides a year at the $400,000 county median (Space Coast Association of REALTORS, June 2026) grosses about $120,000 at 3% per side. A 25% split brokerage keeps roughly $30,000 of that; a 20% split, about $24,000 — before any monthly desk or franchise fees. At Gromadzki, those ten closings cost $4,990 flat, so roughly $19,000 to $25,000 more stays with the agent, every year.

That gap matters more, not less, at Port St. John's attainable price point. A percentage split takes the same 25% cut whether you sold a beachfront estate or a $340,000 block ranch off Fay Boulevard — so on the modest financed deals that make up most of this market, the split is a heavier proportional tax on hard-won, first-time-buyer transactions. On a $340,000 sale, a 3% side is about $10,200; a 25% split hands the brokerage roughly $2,550 of it, versus $499 at Gromadzki. In a market where the volume is in the $300,000s and $400,000s (Space Coast Association of REALTORS, June 2026), keeping your full commission is what turns steady, attainable-market production into a real income.