
Sotheby's International Realty

77
Closed Sales
$156.1M
Total Value
$253K - $12.2M
Price Range
$2M
Average Price
Prior 5 years
About Ellen
Local Expertise. Global Connections.
Ranked in the top 1% of agents in the Cape Cod & Islands MLS and recognized by RealTrends 2025 as among the Top 1.5% of agents nationwide, Ellen Valentgas is known for her design-driven approach to real estate, deep market expertise, and long-standing commitment to the Osterville community.
A resident of the village for more than a decade, Ellen serves on the Board of Trustees for the Osterville Village Library and on the Steering Committee for the Osterville Business & Professional Association, where she helps plan many of the traditions that define village life.
Before settling in Osterville, Ellen spent over twenty years on Nantucket, where she owned a landscape and design firm focused on high-end residential properties. This foundation sharpened her eye for detail and cultivated the strong client-service ethic that now sets her apart in real estate.
Ellen brings her design sensibility into every phase of her work. She has led numerous renovation and new construction projects across Cape Cod, including her showcase design on Oyster Way in Oyster Harbors—celebrated for its seamless indoor-outdoor flow and thoughtful craftsmanship. Today, she regularly advises buyers on maximizing a home's potential and connects clients with trusted artisans, builders, and tradespeople to bring projects to life.
A recognized leader in luxury sales, Ellen offers a full-spectrum perspective—guiding clients with the same care whether they are buying, selling, renting, or renovating. Her creativity, vision, and steady market insight consistently result in exceptional outcomes and lasting relationships. Her approach is calm, collaborative, and solutions-oriented, and clients value her honesty and ability to make complex decisions feel effortless.
Ellen is a member of the Cape Cod & Islands, Massachusetts, and National Associations of REALTORS® and holds the Resort and Second Home Property Specialist designation.
Ellen welcomes the opportunity to guide you through your next chapter on Cape Cod.
Ranked in the top 1% of agents in the Cape Cod & Islands MLS and recognized by RealTrends 2025 as among the Top 1.5% of agents nationwide, Ellen Valentgas is known for her design-driven approach to real estate, deep market expertise, and long-standing commitment to the Osterville community.
A resident of the village for more than a decade, Ellen serves on the Board of Trustees for the Osterville Village Library and on the Steering Committee for the Osterville Business & Professional Association, where she helps plan many of the traditions that define village life.
Before settling in Osterville, Ellen spent over twenty years on Nantucket, where she owned a landscape and design firm focused on high-end residential properties. This foundation sharpened her eye for detail and cultivated the strong client-service ethic that now sets her apart in real estate.
Ellen brings her design sensibility into every phase of her work. She has led numerous renovation and new construction projects across Cape Cod, including her showcase design on Oyster Way in Oyster Harbors—celebrated for its seamless indoor-outdoor flow and thoughtful craftsmanship. Today, she regularly advises buyers on maximizing a home's potential and connects clients with trusted artisans, builders, and tradespeople to bring projects to life.
A recognized leader in luxury sales, Ellen offers a full-spectrum perspective—guiding clients with the same care whether they are buying, selling, renting, or renovating. Her creativity, vision, and steady market insight consistently result in exceptional outcomes and lasting relationships. Her approach is calm, collaborative, and solutions-oriented, and clients value her honesty and ability to make complex decisions feel effortless.
Ellen is a member of the Cape Cod & Islands, Massachusetts, and National Associations of REALTORS® and holds the Resort and Second Home Property Specialist designation.
Ellen welcomes the opportunity to guide you through your next chapter on Cape Cod.
Home Types:
Lot/Land, House, Commercial, Condo, Townhouse, MultiFamily
Years of Experience:
15
Transaction History
- 1 Year
- 2 Year
- 5 Year
Neighborhoods Ellen is Experienced In
Ellen's Listings and Deals
Ellen's Active Listings
Awards and Designations
- NAR - National Association of Realtors
Other Experience
Luxury Homes, New Construction
Homes for Sale by City
- Newest Listings in Dennis
- Newest Listings in Barnstable Town
- Newest Listings in Barnstable
- Newest Listings in East Sandwich
- Newest Listings in Sandwich
- Newest Listings in West Barnstable
- Newest Listings in Yarmouth
- Newest Listings in Hyannis
- Newest Listings in Brewster
- Newest Listings in Sagamore
- Newest Listings in Sagamore Beach
- Newest Listings in Bourne
- Newest Listings in Harwich
- Newest Listings in Mashpee
- Newest Listings in Plymouth
- Newest Listings in Cotuit
- New Homes in Dennis
- New Homes in Barnstable Town
- New Homes in Barnstable
- New Homes in East Sandwich
- New Homes in Sandwich
- New Homes in West Barnstable
- New Homes in Yarmouth
- New Homes in Hyannis
- New Homes in Brewster
- New Homes in Sagamore
- New Homes in Sagamore Beach
- New Homes in Bourne
- New Homes in Harwich
- New Homes in Mashpee
- New Homes in Plymouth
- New Homes in Cotuit
- New Communities in Dennis
- New Communities in Barnstable Town
- New Communities in Barnstable
- New Communities in East Sandwich
- New Communities in Sandwich
- New Communities in West Barnstable
- New Communities in Yarmouth
- New Communities in Hyannis
- New Communities in Brewster
- New Communities in Sagamore
- New Communities in Sagamore Beach
- New Communities in Bourne
- New Communities in Harwich
- New Communities in Mashpee
- New Communities in Plymouth
- New Communities in Cotuit