Residential (General/Single)Residential
Last sold for $300,000 on Sep 20, 2012
521 PIERMONT AVE
RIVER VALE, NJ 07675
195 ft²
Lot SizeThe size of the land the home sits on, from county records.
1976
Year BuiltThe year the home was originally built, according to county records.
Built 19765 floors18 units1,005–1,553 ft²
$3.8M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$417K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$362
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.
-34.3%vs the Westwood ZIP median sale $/ft² ($551)
Sales Performance
$393K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
-7.6%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
10
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
55.6%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+2.4%per yeartypical hold 8.0 yrsfrom 61 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
19932005200820122015201920222026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
19932005200820122015201920222026
174 arms-length sales on record for this building.
Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
Studio
18 units$417K · $362/ft²
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
Studio · 0 ba · 1,152 ft²
8 units$417K · $362/ft²
Studio · 0 ba · 1,005 ft²
3 units$294K · $293/ft²
Studio · 0 ba · 1,139 ft²
3 units
Studio · 0 ba · 1,553 ft²
2 units$543K · $350/ft²
One-off layouts
2 units
Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.
$294K–$294K
1 unit
$416K–$418K
5 units
$420K–$447K
2 units
$543K–$543K
1 unit
Value by Floor & LineAverage estimated price per square foot by floor range, using unit numbers to infer floors. Higher floors usually price higher — the gap shows how much the view is worth here.
Floor 1
$327/ft²2 units · -10%
Floor 3
$365/ft²1 unit · +1%
Floor 4
$375/ft²2 units · +4%
Floor 5
$372/ft²4 units · +3%
Ownership & Financing
Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.50%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.17%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.12.0 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.76%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.38%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$381,329
Median tax billThe middle annual property tax bill among the building's units.$6,909
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0
Recent SalesThe latest recorded arms-length sales in the building, newest first.
BuildingMay 18, 2026$449,000$390/ft²BuildingApr 27, 2026$500,000$372/ft²BuildingMar 27, 2026$325,000$313/ft²BuildingMar 17, 2026$350,000$307/ft²BuildingMar 2, 2026$375,000$274/ft²BuildingFeb 18, 2026$350,000$348/ft²BuildingJan 20, 2026$330,000$328/ft²BuildingDec 17, 2025$415,000$361/ft²BuildingOct 8, 2025$415,950$361/ft²BuildingSep 2, 2025$410,000$356/ft²
Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,442 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$230,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$75,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$154,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$230,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$230,000
Climate Risk
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.28 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal
Scores 0–100; higher = greater projected risk.
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyBERGEN
Lot (acres)The size of the land the home sits on, from county records.0.01
PoolWhether the property has a pool, and what kind, such as in-ground.No
Transaction History(2)
Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
MHE
Holdrum Middle SchoolA
Middle · Grades 6–8 · 0.3 mi
Pascack Valley High SchoolB+
High · Grades 9–12 · 0.6 mi
Roberge Elementary SchoolA-
Elementary · Grades KG–5 · 0.9 mi
District: Pascack Valley Regional School District
Neighborhood · ZIP 07675These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.44
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.116
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.117
Index scale: 100 = US average (tick). Lower is better.
Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.27,744
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,580 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$163,434
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$182,897
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%
Ownership
OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.Yes
All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,368 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,006 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,150 ft²
521 Piermont Ave
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,553 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,150 ft²
521 Piermont Ave
1,368 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,368 ft²
521 Piermont Ave
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,368 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,150 ft²
521 Piermont Ave
1,145 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,039 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,145 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,039 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,368 ft²
521 Piermont Ave
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,368 ft²
521 Piermont Ave
1,039 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,039 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,368 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,553 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,139 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,139 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,145 ft²
521 Piermont Ave
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,006 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
521 Piermont Ave
521 Piermont Ave
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,006 ft²
521 Piermont Ave
1,145 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
521 Piermont Ave
1,152 ft²
521 Piermont Ave
521 Piermont Ave
521 Piermont Ave
521 Piermont Ave
1,006 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,139 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,368 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,368 ft²
521 Piermont Ave
1,139 ft²
521 Piermont Ave
1,150 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,344 ft²
521 Piermont Ave
521 Piermont Ave
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,039 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,152 ft²
521 Piermont Ave
521 Piermont Ave
1,152 ft²
521 Piermont Ave
1,139 ft²
521 Piermont Ave
1,005 ft²
521 Piermont Ave
1,368 ft²
521 Piermont Ave
1,553 ft²
521 Piermont Ave # 101
1,553 ft²
521 Piermont Ave # 107a
1,152 ft²
521 Piermont Ave Apt 110a
1,152 ft²
521 Piermont Ave # 130
1,005 ft²
521 Piermont Ave Apt 210a
1,152 ft²
521 Piermont Ave Apt 220a
1,139 ft²
521 Piermont Ave # 305
1,152 ft²
521 Piermont Ave Apt 310a
1,152 ft²
521 Piermont Ave Apt 320a
1,139 ft²
521 Piermont Ave # 407a
1,152 ft²
521 Piermont Ave # 411a
1,152 ft²
521 Piermont Ave Apt 430a
1,005 ft²
521 Piermont Ave # 501a
1,553 ft²
521 Piermont Ave # 505
1,152 ft²
521 Piermont Ave Apt 520a
1,139 ft²
521 Piermont Ave # 525
1,150 ft²
521 Piermont Ave # 529
1,006 ft²
521 Piermont Ave Apt 530a
1,005 ft²
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
About 521 Piermont Ave
How many units are in 521 Piermont Ave, River Vale, NJ?
521 Piermont Ave, River Vale, NJ has 18 residential units across 5 floors, built in 1976, according to county assessor records.
What is a unit at 521 Piermont Ave, River Vale, NJ worth?
The median TopHap Estimate across the 18 units at 521 Piermont Ave, River Vale, NJ is $417,252. That works out to $362 per square foot. Units run from 1,005 to 1,553 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 521 Piermont Ave, River Vale, NJ expensive for Westwood?
Units at 521 Piermont Ave, River Vale, NJ carry a median of $362 per square foot, 34% below the Westwood median of $551 per square foot.
How often do units sell at 521 Piermont Ave, River Vale, NJ?
10 units at 521 Piermont Ave, River Vale, NJ sold in the last 12 months, out of 174 recorded arms-length sales all time. That is a turnover rate of 55.6% of the building per year. The median sale over that period was $393K.
Have units at 521 Piermont Ave, River Vale, NJ appreciated?
Across 61 repeat sales of the same unit, 521 Piermont Ave, River Vale, NJ returned a median 2.4% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 8.0 years.
What floor plans does 521 Piermont Ave, River Vale, NJ have?
The most common plan at 521 Piermont Ave, River Vale, NJ is a 0-bedroom of 1,152 square feet, repeated 8 times, with a median estimate of $417,252. TopHap identifies 4 recurring plans in the building.
Closest homes
- 521 Piermont Ave$330K5 ft · 1,039 ft² · Sold $325K · Mar 2026
- 521 Piermont Ave$460K5 ft · 195 ft² · Sold Jan 1900
- 521 Piermont Ave$371K10 ft · 1,039 ft² · Sold Jan 1900
- 521 Piermont Ave$378K16 ft · 1,039 ft² · Sold $165K · Jun 1999
- 521 Piermont Ave$367K21 ft · 1,039 ft² · Sold $225K · Jun 2009
- 521 Piermont Ave$414K23 ft · 1,152 ft² · Sold $315K · Mar 2019
- 521 Piermont Ave$389K23 ft · 185 ft² · Sold $19K · Jun 2018
- 521 Piermont Ave$414K28 ft · 1,152 ft² · Sold $153K · Oct 1996
More homes in River Vale 07675
- 40 3rd Ave$684K1,520 ft² · Sold $680K · Jul 2026
- 2 Stewart Ct$2.9M5,171 ft² · Sold $2.9M · Jul 2026
- 43 Old Tappan Rd$1.3M1,828 ft² · Sold $1.3M · Jul 2026
- 41 Holiday Ct$538K1,300 ft² · Sold $500K · Jun 2026
- 1 Sherwood Ct$1.7M3,643 ft² · Sold $1.7M · Jun 2026
- 619 Sargent Rd$1.2M2,119 ft² · Sold $1.2M · Jun 2026
- 794 Blauvelt St118 ft² · Sold $2.4M · Jun 2026
- 99 Beech St$704K1,536 ft² · Sold $700K · Jun 2026
- 54 Charles Pl$1.6M3,012 ft² · Sold $1.6M · Jun 2026
- 710 Tulip Pl$1.4M2,250 ft² · Sold $1.4M · Jun 2026
- 205 Rockland Ave$825K1,275 ft² · Sold $931K · Jun 2026
- 187 Lexington Ave$661K1,511 ft² · Sold $595K · Jun 2026
Assigned schools
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