166 Walden Way Unit 166, Milford, MA For Sale $710,000 - co-listed by Siobhan Costello Weber — For Sale $710,000 • Co-Listing Agent

Siobhan Costello Weber co-listing agent for 22 Oakland Ave, Shrewsbury, MA - sold for $300,000 — Sold $300,000 • Co-Listing Agent

204 Main St Unit 201, Worcester, MA For Rent $2,525/month - listed by Siobhan Costello Weber — For Rent $2,525/month

53 Boylston Cir, Shrewsbury, MA Pending $699,000 - listed by Siobhan Costello Weber — Pending $699,000

Siobhan Costello Weber buyer's agent for 148 S Quinsigamond Ave, Shrewsbury, MA - sold for $585,000 — Sold $585,000

204 Main St Unit 101, Worcester, MA For Rent $2,925/month - listed by Siobhan Costello Weber — For Rent $2,925/month

67 N Quinsigamond Ave Unit 18, Shrewsbury, MA For Sale $559,000 - co-listed by Siobhan Costello Weber — For Sale $559,000 • Co-Listing Agent

Siobhan Costello Weber

Shrewsbury MA

Castinetti Realty Group

159 Closed Sales

$92.6M Total Value

$325K - $1.6M Price Range

$582.3K Average Price

Prior 5 years

About Siobhan

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

Years of Experience: 8

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	27
Total Value	$16,773,500
Average Sale Price	$621,241
Price Range	$170K - $1.6M

Buyer Deals
Total Deals	9
Total Value	$5,451,900
Average Sale Price	$605,767
Price Range	$365K - $1.1M

1 Year View by Quarter

Seller Deals
Total Deals	54
Total Value	$33,739,905
Average Sale Price	$624,813
Price Range	$170K - $1.6M

Buyer Deals
Total Deals	18
Total Value	$10,644,300
Average Sale Price	$591,350
Price Range	$350K - $1.1M

2 Year View by Quarter

Seller Deals
Total Deals	113
Total Value	$66,891,805
Average Sale Price	$591,963
Price Range	$48K - $1.6M

Buyer Deals
Total Deals	46
Total Value	$25,700,100
Average Sale Price	$558,698
Price Range	$207K - $1.2M

5 Year View

Neighborhoods Siobhan is Experienced In

Siobhan's Open Houses

Co-Listing Agent

$710,000

Open Thu 4:30PM - 6PM
- 2 Beds
- 2.5 Baths
- 2,210 Sq Ft
166 Walden Way

Unit 166

Milford, MA
Immaculately maintained townhouse offering the ease of low-maintenance living with a thoughtfully designed floor plan that combines comfort, functionality, and flexible living space. The main level includes everything needed for everyday living, featuring a spacious primary suite with en suite bath, private study, convenient first-floor laundry, attached garage, and an inviting open-concept

Siobhan Costello Weber Castinetti Realty Group

Siobhan's Recent Active Listings

$949,000
- 5 Beds
- 3.5 Baths
- 3,643 Sq Ft
17 Stone Ave

Shrewsbury, MA
Exceptional flexibility meets everyday livability in this thoughtfully expanded home. Designed to evolve with your life, it offers over 3,600 sf of versatile living space, including a beautifully integrated legal accessory dwelling unit with its own entrance, driveway, full kitchen, vaulted ceilings, and sun-filled open-concept living area. Whether hosting extended family or long-term guests,

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$559,000
- 2 Beds
- 2.5 Baths
- 1,690 Sq Ft
67 N Quinsigamond Ave

Unit 18

Shrewsbury, MA
Enjoy water views and access to Lake Quinsigamond from this end-unit townhouse at Water’s Edge, one of only 12 units with dock rights. This 2-bedroom, 2.5-bath home offers an attached 1-car garage, unfinished basement for storage or expansion potential, and a bright, functional layout with updated flooring and fresh finishes. The kitchen features refaced cabinetry, updated island cabinetry,

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$649,000
- 5 Beds
- 2 Baths
- 3,073 Sq Ft
11 Old Common

Millbury, MA
This beautifully renovated colonial blends historic character with a fully modern interior, offering the charm of an antique home with none of the drawbacks. The entire house has been renovated top to bottom — including a new roof, siding, and windows completed in 2024, plus updated plumbing and electrical — giving buyers total peace of mind on the major systems that matter most. Exposed wood

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$769,000
- 4 Beds
- 3 Baths
- 2,836 Sq Ft
15 Mars Dr

Shrewsbury, MA
**$2,500 CLOSING COST CREDIT** A fantastic opportunity to enjoy comfort, space, and convenience in one of Central Massachusetts’ most desirable communities. Nestled in a welcoming neighborhood, this well-maintained home offers a versatile layout designed to fit a variety of lifestyles. Inside, you’ll find bright and inviting living spaces filled with natural light, a functional kitchen with

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$569,000
- 3 Beds
- 2.5 Baths
- 2,165 Sq Ft
707 Southwood Ln

Clinton, MA
Aspen II end-unit townhouse in The Woodlands, set on a quiet cul-de-sac with a flexible, sought-after layout. Features a first-floor primary suite, dedicated study, and open main living area. Kitchen offers granite countertops, large island, custom maple cabinets, and 9’ ceilings, flowing into the dining area and living room with gas fireplace and slider to a private deck overlooking woods.

Siobhan Costello Weber Castinetti Realty Group

$699,000
- 3 Beds
- 2 Baths
- 2,024 Sq Ft
53 Boylston Cir

Shrewsbury, MA
Move-in ready ranch offering the perfect blend of comfort and future potential in a picturesque setting. This 3-bedroom, 2-bath home features an updated open-concept kitchen with leathered granite countertops, SS appliances, updated cabinetry, breakfast bar, and seamless flow to the fireplaced living room with custom built-ins. Fresh neutral paint, hardwood floors in the bedrooms (and beneath

Siobhan Costello Weber Castinetti Realty Group

$599,000
- 4 Beds
- 2.5 Baths
- 2,790 Sq Ft
15 Haviland St

Worcester, MA
Step into the craftsmanship and character of a bygone era in this beautifully preserved 1910 Craftsman on Worcester's desirable West Side. Offering 2,790 sq ft, 4 beds, and 3.5 baths, this distinctive home showcases original stained woodwork, beamed ceilings, diamond-pane windows, and timeless architectural details throughout. Flexible spaces include a home office, sleeping porch, walk-up attic

Siobhan Costello Weber Castinetti Realty Group

$399,000
- 3 Beds
- 1.5 Baths
- 1,678 Sq Ft
27 Kinnicutt Rd

Worcester, MA
OFFER DEADLINE MONDAY 6/22 @ 12 NOON! Nestled in one of Worcester's most sought-after neighborhoods, this longtime family home is ready for its next chapter. The main level features 2 bedrooms, a full bath, kitchen, dining area, and a fireplaced living room, along with a separate entry and coat closet. Upstairs offers an additional bedroom and expansive walk-in attic space with future

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$799,000
- 3 Beds
- 3 Baths
- 2,778 Sq Ft
6 Bryant Ave

Shrewsbury, MA
Welcome to this spacious expanded ranch set on nearly an 1/2 acre in one of Shrewsbury's most sought-after North side neighborhoods. Designed for both everyday living and entertaining, the heart of the home is the oversized open-concept kitchen with abundant workspace, storage, and seamless flow to the main living areas. The flexible floor plan offers 3 bedrooms, 3 full baths, including two

Siobhan Costello Weber Castinetti Realty Group

Recently Sold

$502,000

Sold Jun 18, 2026
- 2 Beds
- 2 Baths
- 1,490 Sq Ft
11 Ledgewood Way

Unit 16

Peabody, MA
- 1% Above List
- $337/SF
- 5 Days On Market
- Current Est. Value $499K
Siobhan Costello Weber Castinetti Realty Group

$630,000

Sold May 5, 2026
- 3 Beds
- 1.5 Baths
- 1,692 Sq Ft
491 Grafton St

Shrewsbury, MA
- 5% Above List
- $372/SF
- 6 Days On Market
- Current Est. Value $635K
Siobhan Costello Weber Castinetti Realty Group

Agent License: Connecticut REB.0794034

Siobhan Costello Weber

(508) 850-0410

Castinetti Realty Group

(508) 850-0410

Homes for Sale by City

Siobhan Costello Weber

About Siobhan

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

Production Over Time

5 Year View

Neighborhoods Siobhan is Experienced In

Siobhan's Listings and Deals

Siobhan's Open Houses

Siobhan's Recent Active Listings

Recently Sold