Mary O'Hagan Real Estate Agent - Barrett Sotheby's International Realty

28 Whitman St, Stow, MA Pending $1,099,000 - listed by Mary O'Hagan — Pending $1,099,000

Mary O'Hagan listing agent for 177 Long Hill Rd, Bolton, MA - sold for $1,252,500 — Sold $1,252,500

20 Hynes Ln, Harvard, MA For Sale $978,000 - listed by Mary O'Hagan — For Sale $978,000

Mary O'Hagan buyer's agent for 13 Gaskins Ln, Ayer, MA - sold for $992,000 — Sold $992,000

Mary O'Hagan

Concord MA

Barrett Sotheby's International Realty

28 Closed Sales

$22.2M Total Value

$556K - $1.3M Price Range

$792.9K Average Price

Prior 5 years

About Mary

Home Types: Townhouse, Condo, House, Lot/Land

Years of Experience: 8

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	7
Total Value	$7,151,500
Average Sale Price	$1,021,643
Price Range	$600K - $1.3M

Buyer Deals
Total Deals	4
Total Value	$4,217,000
Average Sale Price	$1,054,250
Price Range	$810K - $1.3M

1 Year View by Quarter

Seller Deals
Total Deals	11
Total Value	$10,054,500
Average Sale Price	$914,045
Price Range	$489K - $1.3M

Buyer Deals
Total Deals	9
Total Value	$7,771,000
Average Sale Price	$863,444
Price Range	$420K - $1.3M

2 Year View by Quarter

Seller Deals
Total Deals	18
Total Value	$13,764,722
Average Sale Price	$764,707
Price Range	$310K - $1.3M

Buyer Deals
Total Deals	10
Total Value	$8,436,000
Average Sale Price	$843,600
Price Range	$420K - $1.3M

Neighborhoods Mary is Experienced In

Mary's Active Listings

$978,000
- 4 Beds
- 2.5 Baths
- 2,500 Sq Ft
20 Hynes Ln

Harvard, MA
Welcome to this gorgeous 4-bedroom, 2.5-bath Colonial, set on a private 3.41-acre lot in a sought-after neighborhood. From the moment you arrive, the professionally landscaped grounds impress with beautiful gardens, wooded views, and multiple outdoor spaces to enjoy. Inside, the beautifully updated kitchen is a true centerpiece, featuring a stunning island, high-end granite countertops &

Mary O'Hagan Barrett Sotheby's International Realty

$1,099,000
- 4 Beds
- 2.5 Baths
- 3,088 Sq Ft
28 Whitman St

Stow, MA
Tucked back from the road on a private, expansive lot, this sun-filled 4-bedroom, 2.5-bath Colonial offers the perfect blend of space, comfort, and outdoor living. The open-concept layout features hardwood floors throughout much of the home, a spacious kitchen with granite countertops ideal for gathering, and a dining room with lovely crown molding and wainscoting. The dramatic cathedral-ceiling

Mary O'Hagan Barrett Sotheby's International Realty

Recently Sold

$1,252,500

Sold Jun 29, 2026
- 4 Beds
- 2.5 Baths
- 3,366 Sq Ft
177 Long Hill Rd

Bolton, MA
- 5% Above List
- $372/SF
- 5 Days On Market
- Current Est. Value $1M
Mary O'Hagan Barrett Sotheby's International Realty

$600,000

Sold Jun 29, 2026
- 3 Beds
- 1.5 Baths
- 1,550 Sq Ft
17 Calvin St

Ayer, MA
- 6% Above List
- $387/SF
- 5 Days On Market
- Current Est. Value $570K
Mary O'Hagan Barrett Sotheby's International Realty

$700,000

Sold Feb 2, 2026
- 3 Beds
- 2.5 Baths
- 1,764 Sq Ft
23 Calvin St

Ayer, MA
- 3% Below List
- $397/SF
- 12 Days On Market
- Current Est. Value $723K
Mary O'Hagan Barrett Sotheby's International Realty

$1,100,000

Sold Jan 15, 2026
- 4 Beds
- 2.5 Baths
- 3,259 Sq Ft
67 Powder Mill Rd

Sudbury, MA
- 12% Below List
- $338/SF
- 41 Days On Market
- Current Est. Value $1M
Mary O'Hagan Barrett Sotheby's International Realty

$1,270,000

Sold Aug 1, 2025
- 4 Beds
- 4.5 Baths
- 4,628 Sq Ft
294 Harvard Rd

Bolton, MA
- 6% Below List
- $274/SF
- 16 Days On Market
- Current Est. Value $1M
Mary O'Hagan Barrett Sotheby's International Realty

$1,149,000

Sold Jul 31, 2025
- 4 Beds
- 2.5 Baths
- 2,300 Sq Ft
83 Canal St

Unit 85

Winchester, MA
- $500/SF
- 4 Days On Market
Mary O'Hagan Barrett Sotheby's International Realty

$1,080,000

Sold Jul 21, 2025
- 4 Beds
- 2.5 Baths
- 3,519 Sq Ft
171 Wilder Rd

Bolton, MA
- 1% Below List
- $307/SF
- 95 Days On Market
- Current Est. Value $1M
Mary O'Hagan Barrett Sotheby's International Realty

$556,000

Sold Mar 25, 2025
- 2 Beds
- 2.5 Baths
- 1,744 Sq Ft
733 Blue Heron Dr

Unit 733

Lancaster, MA
- 5% Above List
- $319/SF
- 5 Days On Market
Mary O'Hagan Barrett Sotheby's International Realty

$489,000

Sold Oct 24, 2024
- 4 Beds
- 2 Baths
- 2,545 Sq Ft
467 Prospect St

Unit 2

Methuen, MA
- 2% Below List
- $192/SF
- 18 Days On Market
- Current Est. Value $498K
Mary O'Hagan Barrett Sotheby's International Realty

Agent License: Massachusetts 449549077

Mary O'Hagan

(978) 449-4660

Homes for Sale by City

Mary O'Hagan

About Mary

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

2 Year View by Quarter

Seller Deals

Buyer Deals

Neighborhoods Mary is Experienced In

Mary's Listings and Deals

Mary's Active Listings

Recently Sold