The most prized corner in the Western Section was an obvious choice for the site of a brand new dream home, and in-demand Knight Architects was the go-to firm for a refined design befitting the location. Gas lanterns flicker at the manicured entry to the French Provincial completed in 2014. Since then, the gardens and trees around the pool and walled lawn, land once owned by the McGraw-Hill Family, have matured to provide total privacy. A patio with built-in grill and fireplace invites al fresco entertaining nearly year-round. Beginning with leaded-glass framing the front door and continuing with antique lighting and salvaged marble mantels, great care was taken to incorporate hand-crafted elements and add patina to flawless spaces - the key to making a new house feel layered and dynamic. Quarter-sawn random-width oak floors are another worthwhile splurge that call to mind the craftsmanship of an earlier era. Double mudrooms, a main level bedroom suite and a full-service elevator are just a few telltale modern attributes that make life easier. Another is the open kitchen design featuring a rare chestnut island and 48” double Wolf range. In the antique-mirrored butler’s pantry, a full-size wine fridge makes choosing a vintage a quick task. Nearby French doors and clerestory windows high over the family room pass extra light between the adjoining spaces. Two staircases lead to 3 suites, each with beautifully finished walk-in closets, built-ins and marble-accented baths. The boudoir-inspired main suite is the peak of luxury thanks to extras, like a fireplace, slipper tub and dressing room island. With 9-ft ceilings and space galore, the top floor suite is an apartment-sized refuge. No modern-day luxury home is complete without an optimized lower level with zones for fitness and casual entertaining, including an authentic pub-style bar imported from the British Isles. An admirable addition to Princeton’s most iconic neighborhood!
Single-familyProperty Type
2014Year Built
0.97 acresLot Size
4 car garageParking
Listed by Maura Mills• Callaway Henderson Sotheby's Int'l-Princeton
Wonderful opportunity to purchase a much admired parklike lot in Princeton's desirable western section. Comprised of 2 Princeton Borough lots, this 0.97 acre property can be the site for one house. This offering is for the unimproved lot. Public water and sewer are available in the street. Approved site plan, zoning, building data and house plans are available. Some permits are in place. Purchaser can use the existing plans or get approvals for their own design. Assessment, acreage and taxes are a total of lots 5 and 6 on the Princeton Borough tax maps. Walking distance to Palmer Square, Princeton University, McCarter Theater, the Dinky train station, and Princeton's numerous restuarants.
BRIGHT MLS #1009192064
Apr 6, 2011
Listing Removed
—
Jan 11, 2011
Listed
$1,495,000
BRIGHT MLS #1008719960
Apr 30, 2010
Listing Removed
—
Feb 27, 2009
Listed
$1,950,000
BRIGHT MLS #1008719884
Apr 15, 2009
Listing Removed
—
Feb 27, 2009
Listed
$550,000
BRIGHT MLS #1008719936
Apr 15, 2009
Listing Removed
—
Feb 27, 2009
Listed
$1,750,000
Year
Property tax
Land + Additions
Assessment*
2025
$65,740 (+2.6%)
$850,300 + $1,692,600
$2,542,900
2024
$64,056 (+5.9%)
$850,300 + $1,555,100
$2,405,400
2023
$60,472 (+3.6%)
$850,300 + $1,555,100
$2,405,400
2022
$58,368 (−5.7%)
$850,300 + $1,549,700
$2,400,000
2021
$61,890 (+0.8%)
$850,300 + $1,549,700
$2,400,000
2020
$61,408 (+2.0%)
$850,300 + $1,687,200
$2,537,500
2019
$60,190 (−2.2%)
$850,300 + $1,687,200
$2,537,500
2018
$61,553 (+1.4%)
$850,300 + $1,687,200
$2,537,500
2017
$60,709 (+1.6%)
$863,000 + $1,776,500
$2,639,500
2016
$59,758 (+69.6%)
$863,000 + $1,776,500
$2,639,500
2014
$35,244 (+84.2%)
$863,000 + $750,000
$1,613,000
2013
$19,136
$863,000 + $750,000
$1,613,000
Tax history for 166 Library Pl
Year
Property tax
Land + Additions
Assessment*
2025
$65,740 (+2.6%)
$850,300 + $1,692,600
$2,542,900
2024
$64,056 (+5.9%)
$850,300 + $1,555,100
$2,405,400
2023
$60,472 (+3.6%)
$850,300 + $1,555,100
$2,405,400
2022
$58,368 (−5.7%)
$850,300 + $1,549,700
$2,400,000
2021
$61,890 (+0.8%)
$850,300 + $1,549,700
$2,400,000
2020
$61,408 (+2.0%)
$850,300 + $1,687,200
$2,537,500
2019
$60,190 (−2.2%)
$850,300 + $1,687,200
$2,537,500
2018
$61,553 (+1.4%)
$850,300 + $1,687,200
$2,537,500
2017
$60,709 (+1.6%)
$863,000 + $1,776,500
$2,639,500
2016
$59,758 (+69.6%)
$863,000 + $1,776,500
$2,639,500
2014
$35,244 (+84.2%)
$863,000 + $750,000
$1,613,000
2013
$19,136
$863,000 + $750,000
$1,613,000
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Beds
—
Baths
—
Stories
2
Lot width
—
Lot depth
—
Lot size
0.97 Acres
Year renovated
—
Sq. Ft.
5,491
Year built
2014
Style
Single Family Residential
County
Mercer County
APN
1400010 0200005 01
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 14, 2026.
Property details
Parking
Parking Information
# of Detached Garage Spaces: 4
Garage Features: Garage Door Opener
# of Total Garage and Parking Spaces: 4
Has Garage
# of Garage Spaces: 4
Asphalt Driveway, Fenced
Detached Garage, Driveway
Interior
Virtual Tour
Bedroom Information
# of Bedrooms On 1st Upper Level: 3
# of Bedrooms On 2nd Upper Level: 1
# of Bedrooms On Main Level: 1
Bathroom Information
# of Bathrooms (Full) On 1st Upper Level: 3
# of Bathrooms (Full) On 2nd Upper Level: 1
# of Bathrooms (Half) On Main Level: 1
# of Bathrooms (Full) On Main Level: 1
# of Bathrooms (Full) On 1st Lower Level: 1
# of Bathrooms (Full) On All Upper Levels: 4
# of Bathrooms (Full) On All Lower Levels: 1
# of Bathrooms (Half): 1
# of Bathrooms (Full): 6
Interior Information
Appliances: Built-In Microwave, Built-In Range, Central Vacuum, Dishwasher, Dryer, Intercom, Oven/Range - Gas, Range Hood, Refrigerator, Six Burner Stove, Stainless Steel Appliances, Washer, Water Heater