Sean Kostka Real Estate Agent - Profitable Properties Boston LLC

41 Marion St, Boston, MA Pending $499,000 - listed by Sean Kostka — Pending $499,000

Section Image — Pending $499,000

Sean Kostka listing agent for 492 Massachusetts Ave Unit 71, Boston, MA - sold for $690,000 — Sold $690,000

247 Chestnut Hill Ave Unit 3, Brighton, MA For Rent $1,795/month - listed by Sean Kostka — For Rent $1,795/month

Section Image — For Rent $1,795/month

Sean Kostka buyer's agent for 150 Grant Ave, Newton Center, MA - sold for $2,075,000 — Sold $2,075,000

Sean Kostka listing agent for 227 Summit Ave Unit W205, Brookline, MA - sold for $1,040,000 — Sold $1,040,000

Sean Kostka buyer's agent for 1607 Commonwealth Ave Unit 12A, Brighton, MA - sold for $328,000 — Sold $328,000

Sean Kostka

Profitable Properties Boston LLC

4 Closed Sales

$4.1M Total Value

$328K - $2.1M Price Range

$1M Average Price

Prior 5 years

About Sean

Home Types: Condo, House

Years of Experience: 11

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	2
Total Value	$1,730,000
Average Sale Price	$865,000
Price Range	$690K - $1M

Buyer Deals
Total Deals	1
Total Value	$2,075,000
Average Sale Price	$2,075,000

Seller Deals
Total Deals	2
Total Value	$1,730,000
Average Sale Price	$865,000
Price Range	$690K - $1M

Buyer Deals
Total Deals	1
Total Value	$2,075,000
Average Sale Price	$2,075,000

Seller Deals
Total Deals	2
Total Value	$1,730,000
Average Sale Price	$865,000
Price Range	$690K - $1M

Buyer Deals
Total Deals	2
Total Value	$2,403,000
Average Sale Price	$1,201,500
Price Range	$328K - $2.1M

Areas Sean is Experienced In

Sean's Listings and Deals

Sean's Active Listings

$499,000

Pending
- 3 Beds
- 1 Bath
- 806 Sq Ft
41 Marion St

Boston, MA
Welcome to 41 Marion Street, an attached single-family home in East Boston's desirable Eagle Hill neighborhood. Offering four levels of finished living space, this home features three bedrooms, one full bathroom, and a flexible layout that maximizes every level.Hardwood floors run throughout nearly the entire home. The eat-in kitchen features granite countertops, white cabinetry, a stainless

Sean Kostka Profitable Properties Boston LLC

$1,795 per month
- 1 Bath
- 340 Sq Ft
247 Chestnut Hill Ave

Unit 3

Brighton, MA
Great Studio units available this Aug. Updated kitchen and bathroom, located close to 3 train lines and a bus to Harvard square. This unit includes the heat and hot water in the rent.

Sean Kostka Profitable Properties Boston LLC

Recently Sold

$1,040,000

Sold Sep 1, 2026
- 2 Beds
- 1.5 Baths
- 1,267 Sq Ft
227 Summit Ave

Unit W205

Brookline, MA
- 13% Below List
- 53 Days On Market
- $821/SF
- Current Est. Value $1M
Sean Kostka Profitable Properties Boston LLC

$690,000

Sold Jul 27, 2026
- 2 Beds
- 1 Bath
- 871 Sq Ft
492 Massachusetts Ave

Unit 71

Boston, MA
- 1% Below List
- 5 Days On Market
- $792/SF
- Current Est. Value $817K
Sean Kostka Profitable Properties Boston LLC

Sean Kostka

(857) 465-4471

(857) 465-4471

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