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John G. SlatteryCorcoran

Licensed Real Estate Salesperson · Upper East Side, New York

John G. Slattery, Corcoran Chelsea/Flatiron

Corcoran Chelsea/Flatiron 220 West 19th Street New York, NY 10011
jgslattery@corcoran.com(646) 245-5914

© 2026 John G. Slattery

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Homepage photo: East 78th Street by Ajay Suresh, CC BY 4.0. Resized and cropped.

John G. Slattery is a Licensed Real Estate Salesperson with Corcoran, licensed as John G. Slattery.

Corcoran and the Corcoran logos are trademarks of Corcoran Group LLC. The Corcoran System fully supports the principles of the Fair Housing Act and the Equal Opportunity Act.

Your next chapter starts here

Get your instant home valuation.

Start with an automated estimate for your address, then talk through the building, condition, and market with John.

⌕

A little clarity goes a long way

Your address. A little data.
A clearer starting point.

An instant valuation brings available information together to help you understand what your home could be worth. Here’s how it works.

Your home
Property + market data
Your estimated value
  1. 01

    Start with your address

    Find your property so the estimate starts with the right home and location.

  2. 02

    Let the data do the groundwork

    Automated valuation models assess available property information alongside market data to estimate value.

  3. 03

    See the bigger picture

    Use your estimate as a starting point. A local expert can account for the details that data may miss.

Every home has a story the data can’t tell. Recent renovations, condition, views, and unique features can all affect the final sale price. An automated estimate is not an appraisal or a guaranteed sale price.

Understand your home’s value

One home. Different ways
to understand its worth.

Your instant estimate starts the conversation. A comparative market analysis helps you plan a sale; an appraisal provides a formal opinion of value.

For your selling strategy

Comparative market analysis (opens in a new tab)

A comparative market analysis, or CMA, is a real estate agent’s assessment of what your home could sell for in the current market. It compares similar nearby homes and considers your property’s features and condition.

It helps you and your agent choose an asking price and plan your approach to selling. It is an informed pricing recommendation, rather than a formal appraisal.

For a formal opinion of value

Professional appraisal (opens in a new tab)

An appraisal is an independent opinion of a home’s value prepared by a qualified appraiser. It considers the property, comparable sales, and relevant market conditions.

Appraisals are commonly used in mortgage lending and refinancing. A lender may require one even if you already have an instant estimate or an agent’s market analysis.

Portrait of John G. Slattery

Let’s talk about your next move.

An estimate is a starting point. Let’s talk about your home, your timing, and what a successful sale looks like for you. I’ll help you turn the numbers into a plan.

Contact John