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Mary K O'Neill

Mary K O'Neill
Real Estate Agent (Salesperson)
Guilford CT

Salesperson (CT: RES.0803146)

11 years experience

REALTOR® 1 Active Listings Serves New Haven County, CT
View on Realtor.com

Contact Information

Brokerage
Eagle Eye Realty Pllc
Office Address
233 Stepstone Hill Rd
Guilford, CT  06437
(New Haven County)
Office Phone
860-263-9102
Office Fax
203-269-4912
Mobile
203-824-3913
Email
mary***********@*****.com
Show Email for $5

Service Areas

Seymour: CT Ansonia: CT Derby: CT Milford: CT Woodmont: CT East Haven: CT North Haven: CT Orange: CT Shelton: CT Huntington: CT New Haven: CT Hamden: CT Town Of Hamden: CT West Haven: CT Whitneyville: CT Bethany: CT Woodbridge: CT Bridgeport: CT Stratford: CT Trumbull: CT Town Of Stratford: CT Southport: CT Fairfield: CT Madison: CT Guilford: CT Guilford Center: CT Town Of Guilford: CT Branford Center: CT Branford: CT

About Mary O'Neill

**Professional Specialty**

With a comprehensive approach to real estate, this agent serves buyers and sellers across Connecticut, emphasizing the picturesque CT shoreline. They take pride in assisting individuals relocating to the area, offering valuable insights and resources to ensure a smooth transition into their new community. Their passion for the shoreline and its unique offerings enhances the experience for clients.

**Professional Associations**

- National Association of Realtors
- New Haven/Middlesex Board of Realtors
- Member, Shoreline Chamber of Commerce

**Community Involvement**

Upon relocating to the Shoreline, this agent began their career at the Shoreline Chamber of Commerce, focusing on public relations. This role fostered connections within the local community, allowing them to build relationships with local businesses and engage with residents.

**Experience**

Beginning their real estate journey in 1997, this agent initially specialized in residential properties in Melrose, MA, before moving to Connecticut in 1998. After a brief foray into the health and wellness sector, they returned to real estate, focusing on the Milford area. In 2016, they transitioned to the CT shoreline market and joined Carbutti & Co Realtors in 2018, operating from the Branford office.

**Personal**

A resident of Guilford, this agent is actively involved in the community, contributing to the local school system, youth ice hockey, and community theater initiatives. They reside with their husband, Owen, their children, Stephen and Caroline, and two cats, Blackie and Blaze.

**Areas Served**

This agent provides services throughout Connecticut, with particular expertise in New Haven and Middlesex Counties. They possess in-depth knowledge of Milford, Orange, Woodbridge, Bethany, East Haven, Branford, North Branford, Guilford, Madison, Clinton, and Westbrook.

New Haven County, CT Real Estate Market Analysis (Single Family Homes)

$613,085
Avg. Listing Price
From Mary's portfolio
3.4 / 2.4
Avg. Beds/Baths
Typical property size
2,083 sf
Avg. Square Footage
Interior living space
1654
Active Listings
Current inventory

New Haven County stands as Connecticut's second-most populous county and a fascinating study in real estate contrasts, where prestigious university towns meet post-industrial cities undergoing remarkable transformations. With 4,434 actively licensed real estate agents serving this diverse market, the county represents one of the most professionally saturated real estate environments in New England, reflecting both the complexity of local housing needs and the significant opportunities available to industry professionals.

The real estate landscape here defies simple categorization, spanning from New Haven's revitalized downtown districts and prestigious East Rock neighborhood to the affluent suburban enclaves of Madison and Guilford along the shoreline. What makes this market particularly intriguing is how Yale University's presence creates a unique dual economy—driving demand for both luxury faculty housing and affordable student accommodations, while simultaneously fueling commercial real estate development that serves the broader Connecticut economy.

Major New Haven County, Connecticut Real Estate Markets

New Haven anchors the county's real estate activity, but the market extends far beyond the Elm City's borders. Waterbury, often overlooked by coastal observers, has emerged as a surprising bright spot with its affordable housing stock attracting young professionals priced out of Fairfield County. Meanwhile, shoreline communities like Branford, East Haven, and West Haven offer compelling alternatives to their more expensive Fairfield County counterparts, providing coastal living at more accessible price points.

The Naugatuck Valley towns of Ansonia, Derby, and Seymour represent some of the state's most interesting redevelopment opportunities, where former manufacturing sites are being transformed into mixed-use developments. Hamden and North Haven serve as crucial suburban markets, offering family-friendly communities with reasonable commuting access to both New Haven and the broader New York metropolitan area, creating steady demand across multiple price segments.

Market Dynamics and Geographic Complexity

New Haven County's real estate market operates on multiple economic engines simultaneously, creating unusual stability even during broader market fluctuations. The Yale economic ecosystem provides consistent rental demand and faculty relocation needs, while the county's position between New York and Boston creates ongoing interest from commuters seeking value. Surprisingly, the county has seen significant interest from remote workers who discovered they could afford larger homes here while maintaining their metropolitan salaries.

Geographic diversity adds another layer of complexity, with coastal properties following different seasonal patterns than inland communities, and urban areas experiencing different appreciation rates than suburban markets. The county's real estate professionals must navigate everything from historic home regulations in places like Guilford to urban redevelopment incentives in New Haven and Waterbury, requiring specialized knowledge that varies dramatically within relatively short distances.

Why Businesses Need New Haven County, Connecticut Agent Contact Data

With all 4,434 licensed agents maintaining email contact information, New Haven County offers exceptional accessibility for businesses seeking to connect with real estate professionals. Mortgage lenders find this market particularly valuable because the diverse price points and property types create opportunities across their entire product spectrum, from first-time homebuyer programs to jumbo loans for shoreline properties.

Home service companies and contractors discover that New Haven County's mix of historic properties, new construction, and ongoing redevelopment creates consistent demand for specialized services. The concentration of educated, digitally-connected agents means marketing messages reach decision-makers who understand value propositions quickly, while the county's geographic diversity allows businesses to test different approaches across urban, suburban, and coastal markets within a single, manageable region.

Current Property Listings

As of 2/17/2026, Mary O'Neill has 1 property for sale in Guilford and surrounding areas.

$299,000

Listed 2025-11-19

34 Crescent St Apt 2D
Stamford, CT  06906

Beds: 1.0
Baths: 1.0
Sq Ft: 783
Condos Map
View Full Details

Current Property Rentals

Mary O'Neill currently has no rental properties available in Guilford and surrounding areas. Check back later.