Allegheny County property record for 451 Library Ave, Carnegie, PA 15106
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,504 sqft · built 1910 |
| Lot Size | 0.083 acres (3,600 sqft) |
| Owner | Individual Name on File |
| Last Sale | $315,000 (Nov 2022) |
| Tax Bill | $1,179 (2026) |
| Deeds & Mortgages | May 2023 Line of Credit Nov 2022 Sale & Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 103-S-64 |
| Primary APN | 103-S-64 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,504 sqft Living Area |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1910 |
| Architectural Style | Old Style |
| Exterior Material | Other |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 3,600 sqft (0.083 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 451 LIBRARY AVE |
|---|---|
| City | CARNEGIE |
| State | PA |
| Zip | 15106-2636 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MANSFIELD LAND CO PLAN 82 LOT 30X120 LIBRARY AV E 2 STY FRA HSE 451 |
| Legal Subdivision | MANSFIELD LAND CO PLAN |
| Legal Block | 103S |
| Legal Lot Number | 64 |
| Jurisdiction | ALLEGHENY PA |
| Township / Civil Division | CARNEGIE |
| Census Block Group | 3 |
| Census Block | 3011 |
| Census Tract | 468900 |
451 Library Ave is owned and occupied by an individual who bought it in November 2022.
Source: Allegheny County records, as of October 1, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 451 LIBRARY AVE, CARNEGIE, PA 15106-2636 |
| 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 |
|---|---|
| May 4, 2023 | Deed of Trust, Mortgage · Line of Credit DOLLAR BANK FED SVGS BANK |
| Nov 22, 2022 | Warranty Deed, Transfer · Conventional Mortgage HOLLAND MTG ADVISORS |
| Oct 13, 2021 | Special Warranty Deed, Transfer · Conventional Mortgage CITIZENS BANK N A |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 22, 2022 · Amount on File |
| Deed Sale | Nov 22, 2022 · Amount on File |
| Prior Sale | Oct 13, 2021 · Amount on File |
| Deed Book / Page | 19127 / 382 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALLEGHENY PA |
| Property Address | 451 LIBRARY AVE, CARNEGIE, PA 15106-2636 |
| Transaction Type | Mortgage |
| Record Updated | Jul 5, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0575440058 |
|---|---|
| Date | May 4, 2023 |
| Book Page | 57544/58 |
| Instrument | 2023-21083 |
| Name | DOLLAR BANK FED SVGS BANK |
|---|
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | ALLEGHENY PA |
| Recording Date | Nov 22, 2022 |
| Property Address | 451 LIBRARY AVE, CARNEGIE, PA 15106-2636 |
| Document Number | 0191270382 |
| Book / Page | 19127 / 382 |
| Instrument Date | Nov 9, 2022 |
| Instrument | 2022-36746 |
| Transaction Type | Transfer |
| Record Updated | Jan 25, 2023 |
| Title Company | NOT AVAILABLE, UNIVERSAL STLMNT SOLUTIONS |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 451 LIBRARY AVE, CARNEGIE, PA 15106-2636 |
| Document Number | 0202285008 |
|---|---|
| Date | Nov 22, 2022 |
| Instrument | 2022-85008 |
| Name | HOLLAND MTG ADVISORS |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Rate Type | Fixed Rate |
|---|
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | ALLEGHENY PA |
| Recording Date | Oct 13, 2021 |
| Property Address | 451 LIBRARY AVE, CARNEGIE, PA 15106-2636 |
| Document Number | 0186410044 |
| Book / Page | 18641 / 44 |
| Instrument Date | Sep 28, 2021 |
| Instrument | 2021-35018 |
| Transaction Type | Transfer |
| Record Updated | Feb 9, 2022 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 451 LIBRARY AVE, CARNEGIE, PA 15106-2636 |
| Document Number | 2021106748 |
|---|---|
| Date | Oct 13, 2021 |
| Instrument | 2021-106748 |
| Name | CITIZENS BANK N A |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Rate Type | Fixed Rate |
|---|
The 2026 property tax bill for 451 Library Ave was $1,179, down 85% from the year before.
Source: Allegheny County assessment roll, as of June 3, 2026
| Type | Name |
|---|---|
| State | Pennsylvania |
| County | Allegheny County |
| Municipality | Carnegie Borough |
| Unified School District | Carlynton School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,179.00 (-85.04%) | $183,500 (-) Land $22,400 Building $161,100 | $183,500 (-) Land $22,400 Building $161,100 |
| 2025 | $7,879.00 (+10.18%) | $183,500 Land $22,400 Building $161,100 | $183,500 Land $22,400 Building $161,100 |
| 2024 | $7,151.00 (+0.65%) | ||
| 2023 | $7,105.00 | $183,500 Land $22,400 Building $161,100 | |
| 2012 | $183,500 Land $22,400 Building $161,100 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 451 Library Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 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.
The area around 451 Library Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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 | PA AMER WATER CO-PITTSBURGH private · serves 686,000 people · EPA ID PA5020039 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2023 |
| Lead | 4 ppb (2025) action level 15 ppb |
| Water Quality | Turbidity resolved · Nov 2017 |
|---|---|
| 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 641 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fiber · Fixed Wireless in parts of the area | 980 / 880 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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