Sean Kostka
Profitable Properties Boston LLC
The local track record
Sean Kostka ranks #90 (tied) by homes listed and #292 (tied) by asking volume in East Boston, among 320 agents and teams, with 1 home listed and $499K in asking volume. Median of Sean Kostka’s listings in East Boston: Unavailable. Figures cover Nov 2, 2025 – Nov 2, 2026.
Published geographic standings
Where this agent stands out
Citywide totals include qualifying neighborhood homes. Each geography has its own ranking; these rows are not added together.
| Area / reporting period | Homes listed | Listing rank | Asking volume | Volume rank | Median of this agent’s listings |
|---|---|---|---|---|---|
| East BostonNeighborhoodNov 2, 2025 – Nov 2, 2026 edition window | 1Credited homes in this area | T-90of 320 | $499KNov 2, 2025 – Nov 2, 2026 | T-292 | Unavailable1 priced home · this agent |
| South EndNeighborhoodNov 2, 2025 – Nov 2, 2026 edition window | 1Credited homes in this area | T-112of 327 | $699.9KNov 2, 2025 – Nov 2, 2026 | #282 | Unavailable1 priced home · this agent |
| BrooklineBrookline · City or townNov 2, 2025 – Nov 2, 2026 edition window | 1Credited homes in this area | T-140of 436 | $1.1MNov 2, 2025 – Nov 2, 2026 | #288 | Unavailable1 priced home · this agent |
Answers from the data
About Sean Kostka’s listing activity
Where is Sean Kostka most active?
Among the published areas shown for Nov 2, 2025 – Nov 2, 2026, Sean Kostka has the most credited homes in Brookline: 1. Citywide counts include qualifying neighborhood homes.
View source and methodology ↗Where does Sean Kostka rank highest?
Sean Kostka ranks #90 (tied) by homes listed and #292 (tied) by asking volume in East Boston, among 320 agents and teams, with 1 home listed and $499K in asking volume. Median of Sean Kostka’s listings in East Boston: Unavailable. Figures cover Nov 2, 2025 – Nov 2, 2026.
View source and methodology ↗How does Sean Kostka rank in East Boston?
Sean Kostka ranks #90 (tied) by homes listed and #292 (tied) by asking volume in East Boston, with 1 home listed and $499K in asking volume from Nov 2, 2025 – Nov 2, 2026.
View source and methodology ↗What is the median of Sean Kostka’s listings in East Boston?
Unavailable. The median of Sean Kostka’s listings needs at least five priced homes and prices for at least 90% of the credited homes in East Boston from Nov 2, 2025 – Nov 2, 2026.
View source and methodology ↗How do citywide and neighborhood rankings relate?
Each area has its own ranking. A citywide count includes the agent’s qualifying homes inside that city, including its neighborhoods.
View source and methodology ↗Loading current property availability…