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Historic Brooklyn Penthouse Loft in Converted Schoolhouse Lists for $2.95M

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01/13/2026, 01:07:13 PM
Historic Brooklyn Penthouse Loft in Converted Schoolhouse Lists for $2.95M

A unique penthouse loft in a converted 1895 Brooklyn schoolhouse has hit the market for $2.95 million, offering a rare blend of historic architecture and flexible living space. Located in Prospect Heights, this 3,150-square-foot co-op apartment at the former P.S. 9 Annex is being sold for the first time in 36 years. The property, known for its 14-foot vaulted ceilings, exposed brick, and nine skylights, presents a distinctive opportunity for buyers seeking a home with character and a notable past.

What are the key architectural features of this Prospect Heights penthouse? This top-floor residence is a standout example of Renaissance Revival and Romanesque Revival architecture, originally designed by James W. Naughton. The unit's most striking features include its 14-foot vaulted ceilings, exposed brick archways, and nine skylights that flood the interior with natural light. The layout currently functions as a three-bedroom, three-bathroom home but offers the flexibility to be reconfigured. Two wood-burning fireplaces anchor the living areas, and the space is enhanced by a windowed kitchen and two private terraces that provide open views of the city. The building itself, an H-shaped brick structure with gable dormer windows, contributes to the property's stately presence at the corner of Sterling Place and Vanderbilt Avenue.

What is the history behind this converted schoolhouse property? The building was constructed in 1895 as the P.S. 9 Annex to address overcrowding in the original school due to Prospect Heights' growing population. It was later converted into residential co-op units, known simply as "P.S. 9," by local artists. The current apartment was owned for decades by the late urban shaman Donna Henes and her partner, Daile Kaplan, who is now the seller. The residence has been a creative haven, reflecting its artistic conversion and the lives of its previous owners. This history adds a layer of cultural significance to the property beyond its architectural merits.

What practical amenities does the P.S. 9 building offer? Beyond the unique apartment, residents of the P.S. 9 building benefit from several practical amenities that are valuable in a Brooklyn setting. The property features a lush communal garden, providing a green oasis for residents. A significant perk is the availability of gated private parking, a notable rarity in this neighborhood. The building also employs a visiting superintendent, adding a layer of convenience for maintenance and upkeep. These amenities combine the charm of a historic conversion with the practical necessities of modern urban living.

Is this property a good investment based on current Brooklyn market trends? Based on our experience assessment, properties with unique historic pedigrees and architectural distinction often maintain their value well in the Brooklyn real estate market. The listing price of $2.95 million for a 3,150-square-foot penthouse in Prospect Heights is positioned within the upper tier of the local market. The neighborhood has seen consistent demand, and unique properties like this converted schoolhouse tend to attract a specific subset of buyers, which can be advantageous. However, as with any real estate investment, potential buyers should conduct thorough due diligence, including a review of the co-op's financial health and monthly maintenance fees, to assess the long-term investment potential fully.

Prospective buyers considering this one-of-a-kind property should prioritize a specialized inspection to understand the nuances of a converted historic building. Engaging a real estate attorney with experience in co-op transactions and historic properties is highly recommended. The unique nature of this home makes it best suited for a buyer who values architectural history and creative space over a standard, newly constructed residence. Its appeal lies in its story, its light-filled rooms, and its solid place in the fabric of Brooklyn.

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