15 Mars Dr, Shrewsbury, MA For Sale $729,000 - co-listed by Siobhan Costello Weber — For Sale $729,000 • Co-Listing Agent

Siobhan Costello Weber listing agent for 53 Boylston Cir, Shrewsbury, MA - sold for $775,009 — Sold $775,009

204 Main St Unit 203, Worcester, MA For Rent $1,925/month - listed by Siobhan Costello Weber — For Rent $1,925/month

71 Nichols St, Jefferson, MA For Sale $699,000 - co-listed by Siobhan Costello Weber — For Sale $699,000 • Co-Listing Agent

Siobhan Costello Weber buyer's agent for 61 Beverly Hill Dr, Shrewsbury, MA - sold for $875,000 — Sold $875,000

204 Main St Unit 206, Worcester, MA For Rent $1,950/month - listed by Siobhan Costello Weber — For Rent $1,950/month

19 S Lenox St, Worcester, MA For Sale $599,000 - listed by Siobhan Costello Weber — For Sale $599,000

Siobhan Costello Weber

Shrewsbury MA

Castinetti Realty Group

172 Closed Sales

$101.3M Total Value

$340K - $1.6M Price Range

$589.1K 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	39
Total Value	$24,206,509
Average Sale Price	$620,680
Price Range	$170K - $1.6M

Buyer Deals
Total Deals	11
Total Value	$6,806,900
Average Sale Price	$618,809
Price Range	$365K - $1.1M

1 Year View by Quarter

Seller Deals
Total Deals	66
Total Value	$41,172,914
Average Sale Price	$623,832
Price Range	$170K - $1.6M

Buyer Deals
Total Deals	20
Total Value	$11,999,300
Average Sale Price	$599,965
Price Range	$350K - $1.1M

2 Year View by Quarter

Seller Deals
Total Deals	126
Total Value	$75,269,714
Average Sale Price	$597,379
Price Range	$48K - $1.6M

Buyer Deals
Total Deals	46
Total Value	$26,060,100
Average Sale Price	$566,524
Price Range	$207K - $1.2M

5 Year View

Areas Siobhan is Experienced In

Siobhan's Listings and Deals

Siobhan's Open Houses

Co-Listing Agent

$699,000

Open Sun 12:30PM - 2PM
- 4 Beds
- 2.5 Baths
- 2,825 Sq Ft
71 Nichols St

Jefferson, MA
Welcome to 71 Nichols Street, a spacious 4-bedroom, 2.5-bath home offering approximately 2,825 square feet of living space in the Jefferson area of Holden. Set within an established residential neighborhood surrounded by the natural beauty of Central Massachusetts, this property offers an inviting combination of space, versatility, and outdoor enjoyment. Inside, a comfortable and functional floor

Siobhan Costello Weber Castinetti Realty Group

$599,000

Open Sun 11:30AM - 1PM
- 5 Beds
- 2 Baths
- 3,568 Sq Ft
19 S Lenox St

Worcester, MA
Spacious 5+ bedroom Colonial in Worcester’s desirable West Side offering 3 levels of living, flexible bonus space and a .30-acre lot with off-street parking. Inside, find hardwood floors, fireplaces, abundant natural light and classic architectural details throughout. The main level offers multiple living spaces plus a playroom completely gutted and rebuilt by the current owners, including a new

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$699,000

Open Sun 11:30AM - 1PM
- 4 Beds
- 1 Bath
- 2,627 Sq Ft
25 Kenwood Ave

Worcester, MA
Step into the character and craftsmanship of this distinctive antique Worcester home, thoughtfully updated while preserving the architectural details that make it special. The renovated kitchen features granite countertops and premium Thermador appliances installed in 2023, including the range and dishwasher, creating a space that blends historic charm with modern function. A substantial

Siobhan Costello Weber Castinetti Realty Group

Siobhan's Recent Active Listings

$484,909
- 3 Beds
- 2.5 Baths
- 1,532 Sq Ft
57 Martin St

Unit B

Millbury, MA
Newer construction, modern design and NO CONDO FEE make this a standout opportunity in a convenient Millbury location. Set back from the road for added privacy, the home offers an open-concept kitchen and dining area that flows naturally into the living room, where high ceilings and a fireplace create a bright, inviting gathering space. A full unfinished basement delivers exceptional storage with

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$729,000
- 4 Beds
- 3 Baths
- 2,836 Sq Ft
15 Mars Dr

Shrewsbury, MA
$2,500 CLOSING COST CREDIT! Welcome to 15 Mars Drive, where generous living space, thoughtful improvements, and exciting possibilities come together in a convenient Shrewsbury location. The home underwent an extensive transformation in 2002, when the second floor was added and the entire first floor was remodeled—creating a versatile layout designed to accommodate a variety of everyday needs.

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$779,000
- 4 Beds
- 3.5 Baths
- 3,151 Sq Ft
352 Grafton St

Shrewsbury, MA
Tucked well back from Grafton Street on more than an acre, this spacious Colonial offers something increasingly hard to find in Shrewsbury: privacy, land, generous living space and the opportunity to make a substantial home your own. The long setback creates a surprisingly secluded setting with plenty of outdoor space for entertaining, gardening, play or simply enjoying the privacy.Inside,

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$264,000
- 1 Bed
- 1 Bath
- 685 Sq Ft
10 Shrewsbury Green Dr

Unit I

Shrewsbury, MA
Bright, updated and beautifully positioned within Shrewsbury Green, this top-floor one-bedroom offers easy, low-maintenance living in one of Shrewsbury’s most convenient locations. Natural light fills the spacious living and dining area, with sliders opening to a private balcony overlooking the courtyard, a peaceful spot for morning coffee or unwinding at the end of the day. The updated kitchen

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$699,000
- 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

Co-Listing Agent

$549,000
- 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 deeded 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

Siobhan Costello Weber Castinetti Realty Group

$399,000

Pending
- 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

$439,000

Pending
- 3 Beds
- 1 Bath
- 1,782 Sq Ft
48 Washington St

Shrewsbury, MA
BEST & FINAL offers due Tuesday, 9/1 @ 10am! Welcome to this charming 3 bedroom ranch home in a highly desirable area of Shrewsbury, with a functional layout that blends classic longevity with immediate comfort. Well built and structurally sound, this home offers the perfect backdrop to live comfortably today, while you layer in your own personal style and modern updates tomorrow. A brand-new

Siobhan Costello Weber Castinetti Realty Group

Co-Listing Agent

$299,000

Pending
- 1 Bed
- 1 Bath
- 1,030 Sq Ft
36 Elm St

Unit B

Worcester, MA
Brownstone charm meets seriously smart city living! Set in a character-filled 1898 building, this street-level condo delivers a rare combination of space, storage, outdoor living and garage parking at an exceptional value. Pull right into your assigned space in the detached garage with automatic door, then enjoy easy access to your spacious covered patio. Inside, an oversized living room,

Siobhan Costello Weber Castinetti Realty Group

Recently Sold

$775,009

Sold Aug 19, 2026
- 3 Beds
- 2 Baths
- 2,024 Sq Ft
53 Boylston Cir

Shrewsbury, MA
- 11% Above List
- 5 Days On Market
- $383/SF
Siobhan Costello Weber Castinetti Realty Group

$675,000

Sold Aug 7, 2026
- 4 Beds
- 2.5 Baths
- 2,790 Sq Ft
15 Haviland St

Worcester, MA
- 13% Above List
- 5 Days On Market
- $242/SF
- Current Est. Value $603K
Siobhan Costello Weber Castinetti Realty Group

$502,000

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

Unit 16

Peabody, MA
- 1% Above List
- 5 Days On Market
- $337/SF
- Current Est. Value $501K
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
- 6 Days On Market
- $372/SF
- Current Est. Value $631K
Siobhan Costello Weber Castinetti Realty Group

Agent License: Connecticut REB.0794034

Siobhan Costello Weber

(508) 850-0410

Castinetti Realty Group

(508) 850-0410

Nearby Homes

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

Areas Siobhan is Experienced In

Siobhan's Listings and Deals

Siobhan's Open Houses

Siobhan's Recent Active Listings

Recently Sold