Listing Courtesy of Douglas Elliman Real Estate
$550,000
Potential Rebate: $8,250
<p> <strong></strong></p> <p> <strong></strong></p> <p> <strong></strong></p> Prime Opportunity in Carnegie Hill <p>Welcome to Unit 1C at 108 East 91st Street, a rare flexible-use opportunity nestled in a stunning Neo-Renaissance boutique co-op just off Park Avenue. Spanning approximately 600 square feet, this ground-floor unit is currently configured as an office space but can be converted into a charming residential residence, offering endless potential for end-users or investors.</p> <p>Featuring 9-foot ceilings, the space feels open and airy, enhancing its flexibility whether used for commercial or residential purposes.</p> <p>The building exudes timeless elegance with a part-time doorman on duty from 8 AM to midnight, seven days a week, and the convenience of a live-in resident manager. Additional amenities include a laundry room for residents and a pet-friendly policy, all within a well-maintained, prewar setting that blends historic charm with modern service.</p> <p>Perfectly situated just two blocks from Central Park and around the corner from the iconic 92nd Street Y, the location offers immediate access to the very best of the Upper East Side-world-class museums, cultural institutions, restaurants, and shops. Commuting is a breeze with the 86th Street 4/5/6 trains and the Second Avenue Q line.</p> <p>Whether you're seeking a quiet commercial space in a prime location or envisioning a welcoming home, Unit 1C delivers flexibility and style in equal measure.</p> <p>Key Features:</p> <p>Approx. 600 SF</p> <p>9-foot ceilings</p> <p>Currently built as an office; convertible to residential</p> <p>Elegant Neo-Renaissance boutique building</p> <p>Part-time doorman (8 AM-12 AM daily)</p> <p>Live-in resident manager</p> <p>Laundry in the building</p> <p>Pet-friendly policy</p> <p>Coveted Carnegie Hill location, just off Park Avenue</p> <p>Close proximity to Central Park, the 92nd Street Y, museums, restaurants, and more</p> <p>Subway lines: 4/5/6 and Q</p> <p>A unique opportunity in one of Manhattan's most desirable neighborhoods. Reach out today to schedule a private showing. </p>
$4,374 per month
30 year fixed, 6.28% Interest
One-time rebate at closing
$8,250
Monthly savings impact
$23/mo
💡 Estimated at 1.5% of purchase price
The rebate is paid to you at closing and can help offset closing costs or other expenses.
Calculator Disclaimer: This calculator provides estimates for informational purposes only. Actual monthly payments, interest rates, taxes, and rebate amounts may vary. The rebate calculation is an estimate and subject to final terms. This information is not provided by the Real Estate Board of New York (REBNY).
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RLS IDX Data display by Real Estate Rebate Team. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2025 The Real Estate Board of New York, Inc., All rights reserved. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.
The Real Estate Rebate Team
Listing Courtesy of Douglas Elliman Real Estate
Data Source: TRESTLE #RLS20030703

Compare average listing prices and value metrics for 108 East 91ST Street against the surrounding Carnegie Hill market.
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than the Carnegie Hill price average
Units in this building are listed below the neighborhood average, potentially offering better value per square foot compared to surrounding properties.
Carnegie Hill is one of the most prestigious and charming sections of the Upper East Side, spanning from 86th to 96th Streets between Fifth Avenue and Third Avenue. Named after Andrew Carnegie's mansion, it is known for its village-like atmosphere and stunning architecture. For buyers seeking Carnegie Hill Manhattan real estate, it offers a quieter, more family-oriented version of uptown luxury.
Living in Carnegie Hill, Manhattan feels like stepping back in time. The neighborhood is preserved by strict historic district zoning, keeping the tree-lined streets sunny and low-rise. As a family-favorite Manhattan NYC neighborhood, it is defined by its proximity to Central Park, elite private schools, and Museum Mile.
The market for homes for sale in Carnegie Hill is famous for its large, pre-war cooperative apartments. Buildings along Fifth and Park Avenues are among the most exclusive in the city. However, the side streets offer beautiful brownstones and townhouses that are highly coveted.
Inventory here is often geared towards families, with "classic six" and "classic seven" layouts common. It is a stable, high-value market. Co-ops generally have strict board requirements, maintaining the neighborhood's private and settled character.
The lifestyle in Carnegie Hill is refined yet relaxed. It lacks the commercial bustle of the lower 80s or 70s. Instead, residents enjoy boutique shopping on Madison Avenue (like Bonpoint and Jacadi) and brunch at local favorites like Sarabeth's.
The community is tight-knit, often centered around the local schools and the park. It is perhaps the most "neighborhoody" part of the Upper East Side. You will see neighbors chatting on corners, nannies in the park, and a generally slower pace of life.
Carnegie Hill is served by the 4, 5, 6 trains at 86th and 96th Streets, providing distinct express connectivity to Wall Street and Grand Central. The Q train on Second Avenue has also opened up the eastern side of the neighborhood.
The M1, M2, M3, and M4 buses on Fifth and Madison Avenues offer scenic north-south travel along the park. While it feels removed from the chaos, the commute to Midtown is efficient.
Central Park is the neighborhood's backyard. Residents have easy access to the Reservoir, the tennis courts, and the Guggenheim Museum. The neighborhood is also home to the 92nd Street Y, a major cultural and community center.
Schools are a primary draw. The concentration of top-tier private schools (like Dalton, Spence, and Sacred Heart) is higher here than almost anywhere else. It is an area built for raising families in the city.
Carnegie Hill is best for affluent families, lovers of pre-war architecture, and cultural enthusiasts who want to live on Museum Mile. It is ideal for those who prioritize quiet streets, good schools, and proximity to the park.

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