Mercer County and Princeton property record for 191 Library Pl, Princeton, NJ 08540
| Property Type | Single Family Home |
|---|---|
| Details | 4,321 sqft · built 1908 |
| Lot Size | 0.432 acres (18,816 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,260,000 (Mar 2014) |
| Tax Bill | $39,629 (2025) |
| Deeds & Mortgages | Jan 2023 Line of Credit Feb 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 14-00006-01-00004 |
| Primary APN | 14-00006-01-00004 |
|---|---|
| Alternative APN |
|
| Stories | 2 Stories |
|---|---|
| Building Area | 4,321 sqft Living Area |
| Year Built | Built 1908 |
|---|---|
| Effective Year Built | Effective 1908 |
| Construction Type | Frame |
| Lot Area | 18,816 sqft (0.432 acres) |
| Lot Dimensions | 147 ft deep x 128 ft wide |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 191 LIBRARY PL |
|---|---|
| City | PRINCETON |
| State | NJ |
| Zip | 08540-3072 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | B-6,L-4 |
| Legal Block | 6.1 |
| Legal Lot Number | 4 |
| Jurisdiction | MERCER NJ |
| Township / Civil Division | PRINCETON |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 4502 |
191 Library Pl is owned and occupied by two individuals who acquired it in October 2015.
Source: Mercer County and Princeton records, as of July 6, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 191 LIBRARY PL, PRINCETON, NJ 08540-3072 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jan 5, 2023 | Deed of Trust, Mortgage · Line of Credit PNC BANK NA |
| Feb 9, 2021 | Deed of Trust, Mortgage · Conventional Mortgage PNC BANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 18, 2014 · Amount on File |
| Deed Sale | Mar 18, 2014 · Amount on File |
| Prior Sale | Jan 26, 1998 · Amount on File |
| Deed Document Number | 201410471 |
| Deed Book / Page | 6189 / 1231 |
| Last Transfer Date | Oct 15, 2015 |
| Transfer Doc | 0000047148 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MERCER NJ |
| Property Address | 191 LIBRARY PL, PRINCETON, NJ 08540-3072 |
| Transaction Type | Mortgage |
| Record Updated | Jan 19, 2023 |
| Name | Verified Name |
|---|---|
| Address | 191 LIBRARY PL, PRINCETON, NJ 08540-3072 |
| Document Number | 0000000495 |
|---|---|
| Date | Jan 5, 2023 |
| Book Page | 11785/939 |
| Instrument | 2023000495 |
| Name | PNC BANK NA |
|---|---|
| Type | Bank |
| Address | WILMINGTON, DE 19801 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 480 Months |
| Due | Jan 1, 2063 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MERCER NJ |
| Property Address | 191 LIBRARY PL, PRINCETON, NJ 08540-3072 |
| Transaction Type | Mortgage |
| Record Updated | Feb 24, 2021 |
| Title Company | STEWART TITLE, STEWART TITLE INSURANCE CO |
| Name | Verified Name |
|---|
| Document Number | 0000006811 |
|---|---|
| Date | Feb 9, 2021 |
| Book Page | 11573/104 |
| Instrument | 2021006811 |
| Name | PNC BANK NA |
|---|---|
| Type | Bank |
| Address | MIAMISBURG, OH 45342 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 180 Months |
| Due | Feb 1, 2036 |
The 2025 property tax bill for 191 Library Pl was $39,629, up 2.6% from the year before.
Source: Mercer County and Princeton assessment roll, as of July 6, 2026
| Type | Name |
|---|---|
| State | New Jersey |
| County | Mercer County |
| Municipality | Princeton |
| Unified School District | Princeton Public Schools (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,450,000 (-) Land $758,000 Building $692,000 | $1,450,000 (-) Land $758,000 Building $692,000 | |
| 2025 | $39,629.00 (+2.63%) | $1,450,000 Land $758,000 Building $692,000 | $1,450,000 Land $758,000 Building $692,000 |
| 2024 | $38,613.00 | ||
| 2023 | $1,450,000 Land $758,000 Building $692,000 | $1,450,000 Land $758,000 Building $692,000 | |
| 2022 | $35,264.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 191 Library Pl in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective May 23, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 2 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 191 Library Pl is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 65% of New Jersey |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | NJ AMERICAN WATER - RARITAN private · serves 615,430 people · EPA ID NJ2004002 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2024 |
| Lead | 1 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 185 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 2,300 / 2,300 |
| Xfinity Cable | 2,000 / 250 |
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