| Primary address | 550 Mamaroneck Avenue, Harrison |
| Zip code | 10528 |
| County | Westchester |
| Municipality | Harrison |
| Parcel ID | 0.482-0-72 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 12/19/2024 |
| Sale price | $15,450,000 |
| Arm's length | Register |
| Current property tax | $403,911 |
| Building sqft | 105,195 |
| Building class | Office Building (464) |
| Acreage | 8.3 |
| Year built | 1971 |
| Stories | 5 |
| Story height | Register |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
This Office Building (464) located at 550 Mamaroneck Avenue, Harrison, NY 10528 has a total of 105,195 square feet and a current price per square foot of $146.
What is the year built & the current market value of 550 Mamaroneck Avenue, Harrison, NY 10528?550 Mamaroneck Avenue, Harrison, NY 10528 was built in 1971 and has a current tax assessor's market value of $19,573,276.
How many commercial spaces does this building have?This building has 55 commercial spaces available for lease. There are 15 active listings at this address.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
| Suite name | Space type | Lease rate | Available space | Brokers |
|---|---|---|---|---|
| 108 | Office | Listing price not available | 1,147 | N/A |
| 203 | Office | Listing price not available | 3,431 | N/A |
| 204 | Office | Listing price not available | 4,700 | N/A |
| 205 | Office | Listing price not available | 2,377 | N/A |
| 401 | Office | Listing price not available | 4,101 | N/A |
| 402 | Office | Listing price not available | 3,311 | N/A |
| 405 | Office | Listing price not available | 2,315 | N/A |
| 510A | Office | Listing price not available | 6,338 | N/A |
| Listing type | For Lease |
|---|---|
| Listing date | 07/20/2017 |
| Last updated | 04/21/2026 |
| Lot size | 8.3 Acre |
| Suite name | Space type | Lease rate | Available space | Brokers |
|---|---|---|---|---|
| 5th Floor | Medical Office | Listing price not available | 6,539 | Al Gutierrez Ian Ceppos |
| #204 | Medical Office | Listing price not available | 4,700 | Al Gutierrez Ian Ceppos |
| #203 | Medical Office | Listing price not available | 5,039 | Al Gutierrez Ian Ceppos |
| #401 | Medical Office | Listing price not available | 3,700 | Al Gutierrez Ian Ceppos |
| #405 | Medical Office | Listing price not available | 2,278 | Al Gutierrez Ian Ceppos |
| #205 | General Office | Listing price not available | 2,396 | Al Gutierrez Ian Ceppos |
| #402 | General Office | Listing price not available | 3,311 | Al Gutierrez Ian Ceppos |
Create a free account to view the complete sales history for 550 Mamaroneck Avenue, Harrison, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.
R: Recorded date
D: Document date
Access detailed property tax data for 550 Mamaroneck Avenue, Harrison, NY 10528. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025 |
| Base tax | $365,105 |
| Current property tax | $403,911 |
| Market value | $19,573,276 |
| Assessed value | $227,050 |
Here's the assessment & property tax history for 550 Mamaroneck Avenue, Harrison, including the evolution of the total tax rate and corresponding property tax.
| Year | Market value | Assessment value | Total tax rate | Property tax | Year over year change |
|---|---|---|---|---|---|
| 2025 | $19,573,276 | $227,050 | 1608.0388 | $365,105 | +2.20% |
| 2024 | $20,092,920 | $227,050 | 1573.4761 | $357,258 | +2.65% |
| 2023 | $19,405,983 | $227,050 | 1532.8268 | $348,028 | +2.03% |
| 2022 | $17,600,775 | $227,050 | 1502.3193 | $341,102 | +1.85% |
| 2021 | $15,989,437 | $227,050 | 1475.0033 | $334,900 | +1.19% |
Access a detailed real estate market overview of Harrison so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Harrison and compare it to other neighborhoods in Westchester County.
| Total population | 14,091 |
| Median age | 40.2 |
| Average household income | $230,336 |
| Family households | 75.5% |
| Occupied housing units | 5,099 |
| Owner occupied units | 54.0% |
| Average number of people per household | 2.76 |
| Median year structure built | 1962 |
| Median value for units with a mortgage | $953,500 |
| Median value for units without a mortgage | $903,400 |
Create a free account to unlock extended information for 550 Mamaroneck Avenue, Harrison, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| FEMA flood zone(s) | X (See more on map) |
Access the detailed traffic volume map for 550 Mamaroneck Avenue, Harrison to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
| View daily traffic map |
Here are the neighbors for 550 Mamaroneck Avenue, Harrison.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 90 Union Ave, Harrison | |||
| 480 Harrison Ave, Harrison | |||
| 3 Ramapo Cir, Harrison | 3,342 | 10/27/1995 | $515,500 |
| 65 Winfield Ave, Harrison | 3,236 | 09/10/2015 | $1,225,000 |
| 6 Old Woods Dr, Harrison | 5,132 | 08/22/2007 | $2,365,000 |
| 8 Old Woods Dr, Harrison | 6,997 | 01/05/2004 | $3,650,000 |
| 14 Ramapo Trl, Harrison | 3,516 | 11/18/2011 | $1,100,000 |
| 54 Taylor Ln, Harrison | 4,004 | 06/15/2012 | $1,350,000 |
| 440 Mamaroneck Ave, Harrison | 212,579 | 10/28/2008 | |
| 50 Union Ave, Harrison | |||
| 29 Winfield Ave, Harrison | 8,190 | 01/23/2025 | $3,100,000 |
| 635 Harrison Ave, Harrison | 2,276 | ||
| 17 Homestead Pl, Harrison | 5,187 | 12/05/2022 | |
| 5 Ramapo Cir, Harrison | 2,283 | 07/22/2010 | $995,000 |
| 10 Old Woods Dr, Harrison | 4,762 | 10/29/2025 | $3,050,000 |
| 86 Taylor Ln, Harrison | 5,448 | 08/03/2005 | $2,600,000 |
| 562 Harrison Ave, Harrison | 3,371 | 02/16/2012 | $879,000 |
| 10 Ramapo Trl, Harrison | 4,704 | 08/17/1998 | $690,000 |
| 10 Taylor Ln, Harrison | 2,996 | 11/26/2024 | $4,995,000 |
| 12 Ramapo Trl, Harrison | 2,594 | 03/01/2013 | $760,000 |