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For sale
  • Price cut: $250K (3/4)
    $4,650,000

    87 Library Pl, Princeton, NJ 08540

    5beds
    6,619sqft
    : 
    Single Family Residence
    Built in 1860
    0.46 Acres Lot
    $-- Zestimate®
    $703/sqft
    $-- HOA

    What's special

    Eight fireplacesFour additional bedroomsPaneled libraryVaulted-ceiling great roomOriginal woodworkRedesigned gardens and lawnTimeless circular stairs
    Once a grand 19th-century brick mansion, this Gilded Age Princeton original has undergone an extraordinary metamorphosis at the hands of design visionary Bela Rossmann of Polo Design Build. Reimagined from top to bottom, the home is now a tour de force of 21st-century modernism layered over old-world craftsmanship. Rossmann’s reworking doesn’t erase the past, it enhances it. What was once formal is now fluid, and what was once historic is now timeless. Original woodwork is preserved alongside striking new elements like flat-panel walnut cabinetry, custom Italian lighting, and bold marble accents. In the redesigned kitchen, solid walnut drawers glide under striking quartz counters and a Sub-Zero suite anchors the space, while an 8-burner Wolf range presides beneath a sleek hood. A central hall with herringbone floors and timeless circular stairs with bespoke custom-designed 14 glass pendants beneath a leaded glass skylight gives way to a paneled library and den with hidden shelving and a bright, elegant dining room. The former ballroom now serves as a vaulted-ceiling great room, with multiple seating arrangements allowing the space to be comfortable for a small gathering or a grand entertainment space, that opens to two garden spaces, one featuring a brick courtyard with the other, redesigned gardens and lawn edged in clipped Hawthorne tree hedges. There are eight fireplaces and 14 separate climate zones, making comfort as customizable as the design. The primary suite is nothing short of a private wellness retreat, complete with two spa-like bathrooms, a marble-clad tub room, a shower room with an oversized shower controlled by an electronic keypad, heated floors, and a dressing room worthy of a fashion editorial. Four additional bedrooms include two guest suites and a pair of mirror-image bedrooms connected by a Jack-and-Jill bath. A sunny multipurpose room with exposed brick and skylights serves as this home’s kick-back-and-relax space near a handy second staircase leading to an organized mudroom and the heated two-car garage. Every detail has been touched, yet the soul of this home remains intact. An impeccable vision and design executed to the Nth degree.
    315 days
    |
    4,001
    |
    92
    |

    Zillow last checked: 7 hours ago

    Listing updated: March 24, 2026 at 03:37am

    Listed by:

    Susan DiMeglio 609-915-5645,

    Callaway Henderson Sotheby's Int'l-Princeton

    Source: Bright MLS,MLS#: NJME2054086MLS Logo

    Tour with a local agent

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 5
      • Bathrooms: 6
      • Full bathrooms: 4
      • 1/2 bathrooms: 2
      • Main level bathrooms: 2
      Rooms
      • Room types: Primary Bedroom, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5, Kitchen, Den, Library, Foyer, Great Room, Laundry, Storage Room, Bonus Room, Primary Bathroom, Full Bath, Half Bath
      Primary bedroom
      • Features: Flooring - Wood
      • Level: Upper
      • Area: 289 Square Feet
      • Dimensions: 17 X 17
      Bedroom 2
      • Features: Flooring - Wood, Fireplace - Gas
      • Level: Upper
      • Area: 238 Square Feet
      • Dimensions: 14 X 17
      Bedroom 3
      • Features: Flooring - HardWood, Fireplace - Gas
      • Level: Upper
      • Area: 196 Square Feet
      • Dimensions: 14 X 14
      Bedroom 4
      • Features: Flooring - HardWood, Fireplace - Gas
      • Level: Upper
      • Area: 168 Square Feet
      • Dimensions: 12 X 14
      Bedroom 5
      • Features: Flooring - HardWood
      • Level: Upper
      • Area: 180 Square Feet
      • Dimensions: 10 X 18
      Primary bathroom
      • Level: Upper
      • Area: 48 Square Feet
      • Dimensions: 8 X 6
      Primary bathroom
      • Level: Upper
      • Area: 48 Square Feet
      • Dimensions: 8 X 6
      Primary bathroom
      • Features: Fireplace - Gas
      • Level: Upper
      • Area: 120 Square Feet
      • Dimensions: 15 X 8
      Primary bathroom
      • Level: Upper
      • Area: 63 Square Feet
      • Dimensions: 7 X 9
      Bonus room
      • Features: Flooring - Wood
      • Level: Upper
      • Area: 570 Square Feet
      • Dimensions: 19 X 30
      Den
      • Features: Flooring - Wood, Fireplace - Gas, Built-in Features
      • Level: Main
      • Area: 160 Square Feet
      • Dimensions: 16 X 10
      Foyer
      • Features: Flooring - Wood
      • Level: Main
      • Area: 234 Square Feet
      • Dimensions: 13 X 18
      Other
      • Features: Flooring - Marble, Bathroom - Walk-In Shower
      • Level: Upper
      • Area: 75 Square Feet
      • Dimensions: 5 X 15
      Other
      • Features: Flooring - Marble, Bathroom - Walk-In Shower
      • Level: Upper
      • Area: 66 Square Feet
      • Dimensions: 6 X 11
      Other
      • Features: Flooring - Marble
      • Level: Upper
      • Area: 42 Square Feet
      • Dimensions: 7 X 6
      Great room
      • Features: Flooring - Wood, Fireplace - Gas
      • Level: Main
      • Area: 825 Square Feet
      • Dimensions: 33 X 25
      Half bath
      • Level: Main
      • Area: 30 Square Feet
      • Dimensions: 6 X 5
      Half bath
      • Level: Main
      • Area: 35 Square Feet
      • Dimensions: 5 X 7
      Kitchen
      • Features: Soaking Tub, Bathroom - Walk-In Shower, Countertop(s) - Quartz, Eat-in Kitchen, Kitchen - Gas Cooking, Pantry
      • Level: Main
      • Area: 476 Square Feet
      • Dimensions: 28 X 17
      Laundry
      • Level: Main
      • Area: 110 Square Feet
      • Dimensions: 11 X 10
      Laundry
      • Level: Upper
      • Area: 50 Square Feet
      • Dimensions: 5 X 10
      Library
      • Features: Flooring - Wood, Fireplace - Gas, Built-in Features
      • Level: Main
      • Area: 285 Square Feet
      • Dimensions: 19 X 15
      Mud room
      • Level: Main
      • Area: 90 Square Feet
      • Dimensions: 9 X 10
      Storage room
      • Features: Flooring - HardWood
      • Level: Upper
      • Area: 170 Square Feet
      • Dimensions: 17 X 10
      Heating
      • Forced Air, Natural Gas
      Cooling
      • Central Air, Electric
      Appliances
      • Included: Built-In Range, Range, Dishwasher, Microwave, Oven/Range - Gas, Refrigerator, Six Burner Stove, Electric Water Heater
      • Laundry: Laundry Room, Mud Room
      Features
      • Additional Stairway, Soaking Tub, Bathroom - Walk-In Shower, Breakfast Area, Built-in Features, Curved Staircase, Floor Plan - Traditional, Kitchen - Gourmet, Kitchen Island, Kitchen - Table Space, Pantry, Recessed Lighting, Spiral Staircase, Upgraded Countertops, Walk-In Closet(s)
      • Flooring: Wood
      • Basement: Full
      • Number of fireplaces: 7
      • Fireplace features: Gas/Propane, Mantel(s), Marble
      Interior area
      • Total structure area: 6,619
      • Total interior livable area: 6,619 sqft
      • Finished area above ground: 6,619
      • Finished area below ground: 0
      Video & virtual tour

      Property

      Parking
      • Total spaces: 6
      • Parking features: Garage Faces Side, Driveway, Attached
      • Attached garage spaces: 2
      • Uncovered spaces: 4
      Accessibility
      • Accessibility features: None
      Features
      • Levels: Three
      • Stories: 3
      • Pool features: None
      Lot
      • Size: 0.46 Acres
      • Dimensions: 100.00 x 200.00
      Details
      • Additional structures: Above Grade, Below Grade
      • Parcel number: 1400012 0100007
      • Zoning: R1
      • Special conditions: Standard

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Transitional
      • Property subtype: Single Family Residence
      Materials
      • Brick
      • Foundation: Concrete Perimeter
      Condition
      • Excellent
      • New construction: No
      • Year built: 1860

      Utilities & green energy

      • Sewer: Public Sewer
      • Water: Public

      Community & HOA

      Community
      • Subdivision: None Available
      HOA
      • Has HOA: No
      Location
      • Region: Princeton
      • Municipality: PRINCETON

      Financial & listing details

      • Price per square foot: $703/sqft
      • Tax assessed value: $2,221,200
      • Annual tax amount: $59,150
      • Date on market: 5/16/2025
      • Listing agreement: Exclusive Right To Sell
      • Ownership: Fee Simple

        Estimated market value

        Not available

        Estimated sales range

        Not available

        $7,843/mo

        Price history

        Price history
        DateEventPrice
        3/4/2026Price change$4,650,000-5.1%$703/sqft
        Source: Bright MLS #NJME2054086 Report a problem
        12/3/2025Price change$4,900,000-3.9%$740/sqft
        Source: Bright MLS #NJME2054086 Report a problem
        9/12/2025Price change$5,100,000-11.3%$771/sqft
        Source: Bright MLS #NJME2054086 Report a problem
        6/26/2025Price change$5,750,000-0.9%$869/sqft
        Source: Bright MLS #NJME2054086 Report a problem
        5/16/2025Listed for sale$5,800,000+241.2%$876/sqft
        Source: Bright MLS #NJME2054086 Report a problem
        6/14/2024Sold$1,700,000-13.9%$257/sqft
        Source: Bright MLS #NJME2030562 Report a problem
        6/12/2024Pending sale$1,975,000$298/sqft
        Source: Bright MLS #NJME2030562 Report a problem
        6/11/2024Price change$1,975,000-1%$298/sqft
        Source: Bright MLS #NJME2030562 Report a problem
        3/5/2024Pending sale$1,995,000$301/sqft
        Source: Bright MLS #NJME2030562 Report a problem
        2/28/2024Contingent$1,995,000$301/sqft
        Source: Bright MLS #NJME2030562 Report a problem
        2/1/2024Price change$1,995,000-11.3%$301/sqft
        Source: Bright MLS #NJME2030562 Report a problem
        11/16/2023Price change$2,250,000-10%$340/sqft
        Source: Bright MLS #NJME2030562 Report a problem
        7/14/2023Listed for sale$2,500,000$378/sqft
        Source: Bright MLS #NJME2030562 Report a problem
        6/22/2023Contingent$2,500,000$378/sqft
        Source: Bright MLS #NJME2030562 Report a problem
        6/2/2023Listed for sale$2,500,000$378/sqft
        Source: Bright MLS #NJME2030562 Report a problem

        Public tax history

        Public tax history
        YearProperty taxesTax assessment
        2025$46,549 -21.3%$1,748,000 -21.3%
        2024$59,151 -6.1%$2,221,200 -14%
        2023$62,990 $2,582,600
        2022$62,990 +0.8%$2,582,600
        2021$62,499 +2%$2,582,600
        2020$61,259 +3.7%$2,582,600
        2019$59,077 +1.4%$2,582,600 +1.9%
        2018$58,266 +1.6%$2,533,300
        2017$57,354 +2.4%$2,533,300
        2016$56,037 +1.2%$2,533,300
        2015$55,353 +2.5%$2,533,300
        2014$53,985 -2.6%$2,533,300 -3.8%
        2013$55,431 +3.1%$2,633,300
        2012$53,746 +0%$2,633,300
        2011$53,735 -0.7%$2,633,300
        2010$54,102 +2.8%$2,633,300 +109.8%
        2009$52,640 +6.4%$1,255,300
        2008$49,467 +6.2%$1,255,300
        2007$46,596 $1,255,300
        2006-- $1,255,300
        2005-- $1,255,300
        2004$38,633 $1,255,300
        2003-- $1,255,300
        2002-- $1,255,300
        2001-- $1,255,300

        Find assessor info on the county website

        BuyAbility℠ payment

        Est. payment
        $31,885/mo
        Principal & interest
        $23980
        Property taxes
        $7905
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          Climate risks

          Neighborhood: 08540

          Getting around

          72 / 100
          Very Walkable
          77 / 100
          Very Bikeable

          Nearby schools

          GreatSchools rating
          Schools provided by the listing agent
          • Elementary: Community Park E.s.
          • Middle: John Witherspoon M.s.
          • High: Princeton H.s.
          • District: Princeton Regional Schools

          Source: Bright MLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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