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Mark Costanza
Real Estate Agent (Associate Broker)
Corning NY

Associate Broker (NY: 30CO0988217)

24 years experience

REALTOR® 5 Active Listings Serves Steuben County, NY
View on Realtor.com

Contact Information

Brokerage
Signature Properties-H H
Office Address
15 W Market St
Corning, NY  14830
(Steuben County)
Office Phone
607-796-9817
Office Fax
607-936-3982
Mobile
607-738-9911
Email
cost******@*****.com
Show Email for $5

Service Areas

Big Flats: NY Corning: NY Riverside: NY South Corning: NY Lindley: NY Horseheads: NY Pine Valley: NY Horseheads North: NY Lowman: NY Chemung: NY Bradford: NY Coopers Plains: NY Gang Mills: NY Painted Post: NY

About Mark Costanza

As a dedicated Realtor, Mark actively engages with the Board of Realtors, contributing to various initiatives, including fundraising efforts for Habitat for Humanity. [He/She/They] regularly attends state meetings and serves on grievance and other committees, demonstrating a commitment to the real estate community. With 14 years of experience in the industry, Mark holds both the Graduate Realtor Institute (GRI) and E-Pro certifications, as well as the designation of Associate Broker.

Steuben County, NY Real Estate Market Analysis (Single Family Homes)

$231,721
Avg. Listing Price
From Mark's portfolio
3.2 / 1.9
Avg. Beds/Baths
Typical property size
1,867 sf
Avg. Square Footage
Interior living space
279
Active Listings
Current inventory

Steuben County's real estate market reflects the diverse character of New York's Southern Tier, where rolling hills meet the Finger Lakes region and agricultural communities blend with small cities. With 138 total actively licensed agents serving the county, this relatively intimate market offers personalized service that larger metropolitan areas often cannot match. The agent-to-population ratio creates opportunities for deeper client relationships and specialized local knowledge that proves invaluable in navigating the county's varied property types and price points.

What makes Steuben County particularly intriguing is its strategic position between major markets like Rochester and Elmira, combined with proximity to Pennsylvania's northern border. This geographic advantage has attracted buyers seeking affordable alternatives to higher-priced regions while maintaining access to employment centers and recreational amenities. The fact that all 138 licensed agents maintain email connectivity demonstrates the market's embrace of digital communication, essential for serving clients who may be relocating from urban areas or managing transactions remotely.

Major Steuben County, New York Real Estate Markets

Corning dominates the county's real estate landscape, driven by the presence of Corning Incorporated and the world-renowned Corning Museum of Glass. This economic anchor creates steady housing demand, particularly in the mid-range market where young professionals and established families compete for well-maintained properties near the city center. Hornell serves as another significant market hub, offering more affordable options while maintaining convenient access to transportation corridors and regional amenities.

The smaller communities of Bath, Addison, and Wayland each contribute unique market dynamics, from Bath's historic charm attracting renovation enthusiasts to Addison's appeal among commuters seeking rural tranquility. Lake properties near Keuka Lake's southern reaches command premium prices, creating a luxury segment that contrasts sharply with the county's generally affordable housing stock. These diverse markets require agents with specialized knowledge of everything from agricultural zoning to lakefront regulations.

Market Dynamics and Geographic Complexity

Steuben County's real estate market operates on seasonal rhythms influenced by both agriculture and tourism, with spring and summer months showing increased activity around lake properties and rural acreage. The market demonstrates remarkable stability compared to volatile urban centers, with modest appreciation rates that attract both first-time homebuyers and investors seeking steady returns. Agricultural properties and hunting land create niche markets requiring specialized expertise in land use regulations and financing options.

Geographic complexity emerges from the county's mix of valleys, hillsides, and lake frontage, where elevation changes and soil conditions significantly impact property values and development potential. Rural properties may involve well water, septic systems, and access road considerations that urban-focused agents might overlook. This complexity explains why local expertise remains crucial despite digital tools and online listings becoming increasingly sophisticated.

Why Businesses Need Steuben County, New York Agent Contact Data

Mortgage lenders and financial services companies benefit enormously from direct agent contact data, enabling them to build relationships with all 138 active professionals rather than hoping for referrals through limited networking. Home service providers, from inspectors to contractors, can efficiently reach the entire agent network to establish preferred vendor relationships that drive consistent business throughout the county's diverse communities.

Insurance agencies, title companies, and real estate technology providers find that comprehensive agent contact information allows for targeted marketing campaigns that account for local market conditions and client needs. With every agent maintaining email contact, businesses can implement sophisticated communication strategies that nurture long-term partnerships while respecting the personal relationships that define smaller market success.

Current Property Listings

As of 2/13/2026, Mark Costanza has 5 properties for sale in Corning and surrounding areas.

$499,900

Listed 2025-08-04

270 W Hill Road A
Elmira, NY  14903

Beds: 4.0
Baths: 2.5
Sq Ft: 3,398
Lot: 551,470 sf
Single Family Map
View Full Details

$529,900

Listed 2025-10-07

303 Wexford Ln
Horseheads, NY  14845

Beds: 4.0
Baths: 2.5
Sq Ft: 3,426
Lot: 19,602 sf
Single Family Map
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$149,900

Listed 2025-11-09

7-9 Maple St
Corning, NY  14830

Beds: 3.0
Baths: 2.0
Sq Ft: 1,864
Lot: 6,564 sf
Multi Family Map
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$189,900

Listed 2025-07-09

3975 Curtis Coopers Rd
Campbell, NY  14821

Beds: 3.0
Baths: 2.0
Sq Ft: 2,016
Lot: 47,045 sf
Mobile Map
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$374,900

Listed 2025-12-29

106 Weston Ln
Painted Post, NY  14870

Beds: 4.0
Baths: 3.5
Sq Ft: 2,796
Lot: 60,348 sf
Single Family Map
View Full Details

Current Property Rentals

Mark Costanza currently has no rental properties available in Corning and surrounding areas. Check back later.