
Tammie Costello
Keller Williams Realty
Each Keller Williams® office is independently owned and operated
My Details
LANGUAGES
English
SPECIALITIES AND DESIGNATIONS
Realtor, ABR
MILITARY AFFILIATION
Supporter / Patriot - United States United States Marine Corps
Supporter / Patriot - United States United States Army
Supporter / Patriot - United States United States Air Force
Supporter / Patriot - United States United States Coast Guard
Supporter / Patriot - United States United States National Guard
Supporter / Patriot - United States United States Navy
Supporter / Patriot - United States United States Space Force
MARKET CENTER
Keller Williams Realty
About Me
Tammie is a seasoned New Jersey real estate professional with many years of experience, renowned for her expertise in guiding clients through the upsizing and downsizing process. With her motto, “Ask Tammie About Real Estate,” she has built a reputation as the go-to agent for move-up buyers seeking larger, family-friendly homes and empty nesters transitioning to low-maintenance condos or townhomes in New Jersey’s vibrant communities. Licensed to serve clients across the state, Tammie’s deep knowledge of NJ’s dynamic market—from the family-oriented suburbs of Cranford, Westfield, and Scotch Plains to downsizer-friendly towns—ensures her clients find the perfect home for their next chapter. Specializing in upsizing and downsizing, Tammie understands the unique needs of her clients at every stage of life. For move-up buyers, she expertly navigates the process of selling starter homes (e.g., condos or smaller properties) to secure larger, dream homes that accommodate growing families, career advancements, or lifestyle upgrades, all while maximizing equity in NJ’s competitive market. For empty nesters, Tammie streamlines the downsizing journey, helping clients sell larger family homes and transition to cozy, low-maintenance properties like 55+ community condos or townhomes, ensuring financial freedom and a stress-free move. Her strategic approach includes coordinating complex transactions, negotiating favorable terms (e.g., Use and Occupancy agreements), and leveraging NJ’s up market to achieve top-dollar sales.
With years of experience, Tammie has honed a skill set that sets her apart. She implements tailored strategies to best serve her clients, from conducting precise Comparative Market Analyses (CMAs) to pricing homes competitively, staging for maximum appeal, and navigating NJ’s high property taxes and closing costs. Her ability to anticipate market trends and tailor solutions—whether helping a family upsize to a 4-bedroom in Westfield or guiding retirees to a Cranford condo—ensures seamless, client-focused outcomes. Tammie’s innovative marketing approach amplifies her listings’ visibility in NJ’s fast-paced market. She harnesses the power of social media, including engaging YouTube videos and targeted social posts with hashtags like #NJRealEstate and #askTammie, to showcase properties and connect with clients. Her creative strategies, such as professional photography, virtual tours, and compelling video content, highlight the unique features of each home, attracting buyers in high-demand areas. By offering downloadable resources like checklists and market updates, Tammie builds trust and captures leads, ensuring her clients’ homes stand out in a crowded market. Whether you’re upsizing to accommodate a growing family or downsizing to embrace a simpler lifestyle, Tammie’s years of experience, strategic expertise, and creative marketing make her the ideal partner for your NJ real estate journey. Ask Tammie About Real Estate today, and let her guide you to your dream home with confidence and care.
With years of experience, Tammie has honed a skill set that sets her apart. She implements tailored strategies to best serve her clients, from conducting precise Comparative Market Analyses (CMAs) to pricing homes competitively, staging for maximum appeal, and navigating NJ’s high property taxes and closing costs. Her ability to anticipate market trends and tailor solutions—whether helping a family upsize to a 4-bedroom in Westfield or guiding retirees to a Cranford condo—ensures seamless, client-focused outcomes. Tammie’s innovative marketing approach amplifies her listings’ visibility in NJ’s fast-paced market. She harnesses the power of social media, including engaging YouTube videos and targeted social posts with hashtags like #NJRealEstate and #askTammie, to showcase properties and connect with clients. Her creative strategies, such as professional photography, virtual tours, and compelling video content, highlight the unique features of each home, attracting buyers in high-demand areas. By offering downloadable resources like checklists and market updates, Tammie builds trust and captures leads, ensuring her clients’ homes stand out in a crowded market. Whether you’re upsizing to accommodate a growing family or downsizing to embrace a simpler lifestyle, Tammie’s years of experience, strategic expertise, and creative marketing make her the ideal partner for your NJ real estate journey. Ask Tammie About Real Estate today, and let her guide you to your dream home with confidence and care.
My Preferred Vendors
A curated selection of vendors that I trust and recommend for various services. Discover reliable businesses that offer exceptional quality and a commitment to excellence.
My Preferred Vendors
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