BuySI

Grasmere / Arrochar / South Beach / Dongan Hills

Mid-Island
Buyer'sSeller's0 (Buyer's)50 (Balanced)100 (Seller's)62.2

Balanced

Cooling

Composite score combining supply, pricing dynamics, and speed

Grasmere / Arrochar / South Beach / Dongan Hills is a balanced market. Homes sell in 55 days on average, 1% under asking.

Market Metrics

Pricing

Median Sale Price

$817K

+0.1%YoY

Avg $/Sq Ft

$476

Sale-to-List Ratio

98.8%

% Over Asking

0.3%

% With Price Cuts

N/A

Speed

Median Days on Market

55 days

Sold in <14 Days

0.1%

Sold in <30 Days

N/A

Supply

Active Inventory

78

New Listings

N/A

Months of Supply

1.4

Absorption Rate

70.5%

Volume

Homes Sold

55

Adjust Assumptions

$

Grasmere / Arrochar / South Beach / Dongan Hills median: $817,036

0%Loan: $654K50%
2%10%

Required in FEMA flood zones. Not all areas of SI need this.

Monthly Cost Breakdown

Mortgage (P&I)
$4,131/mo($49,577/yr)
Property Tax
$681/mo($8,170/yr)
Homeowner's Insurance
$251/mo($3,010/yr)
Flood Insurance
$625/mo($7,500/yr)

Zone VE — $5,000-$10,000/yr

Commute Costs
$127/mo($1,524/yr)

Express Bus

TOTAL MONTHLY COST
$5,815/mo

$69,781/yr

Mortgage (P&I)
Property Tax
Homeowner's Insurance
Flood Insurance
Commute Costs

Estimates for planning purposes. Actual costs may vary. Property tax uses a ~1% approximation; NYC assessments differ. Flood insurance ranges reflect typical NFIP premiums.

Price Trends

Median Sale Price

Avg Price Per Sq Ft

Days on Market

Median Days on Market

Sale-to-List Ratio

Sale-to-List Ratio

Supply & Demand

Supply & Demand

Property Types & Price Distribution

Property Types

Single Family$770K median
Two/Three Family$950K median
Condo$590K median
COMMERCIAL GARAGES$3.52M median
Elevator Rental$243K median
Vacant Land$880K median
Three Family$782K median
OFFICE BUILDINGS$2.21M median
STORE BUILDINGS$1.33M median
WAREHOUSES$600K median
CONDO OFFICE BUILDINGS$800K median
Walk-up Rental$2.20M median
COMMERCIAL VACANT LAND$1.05M median
COMMERCIAL CONDOS$685K median

Price Distribution

Flood Risk Assessment

High Risk45% of this area is in a FEMA flood zone

Primary FEMA Zone

Zone AE (base flood elevation determined)

Est. Annual Flood Insurance

$2K $5K / year

Area in flood zone45%

South Beach and Dongan Hills waterfront were severely impacted by Hurricane Sandy. Large portions are in AE and VE flood zones with mandatory flood insurance requirements.

Look up your address on FEMA Flood Map Service

Recent Sales

AddressSale PriceSq Ft$/Sq FtLand Sq FtYear BuiltSale DateTypeUnits
$750,0001,108$6772,2001960Jun 24, 2026Single Family1
$590,0001,040$5672,5001910Jun 18, 2026Single Family1
$870,0001,800$4833,8151915May 27, 2026Three Family3
$870,0002,376May 27, 2026Vacant Land0
$786,000960$8193,8951955May 26, 2026Single Family1
$800,0001,485$5394,0001940May 22, 2026Single Family1
$980,0002,176$4504,0001925May 21, 2026Single Family1
$266,2462,130$1252,3832002May 20, 2026Single Family1
$317,2772,130$1492,3832002May 20, 2026Single Family1
$250,0002,804$895,0001925May 19, 2026Three Family3
$710,0001,350$5261,1201988May 18, 2026Single Family1
$1,150,0001,440$7994,9201995May 14, 2026Single Family1
$1,900,00025,125May 13, 2026Vacant Land0
$910,0001,200$75810,8001905May 13, 2026Single Family1
$999,0003,037$3296,5962020May 13, 2026Single Family1
$480,0001,044$4601,8751901May 11, 2026Single Family1
$655,0001,350$4851,8251999May 7, 2026Single Family1
$1,371,0002,445$5616,0001965May 6, 2026Single Family1
$599,000936$6402,0001925Apr 30, 2026Single Family1
$885,000990$8942,5502001Apr 28, 2026Single Family1
$720,0001,242$5802,0201990Apr 27, 2026Single Family1
$2,500,0004,103$6098,6001965Apr 24, 2026Single Family1
$750,0001,176$6384,1001960Apr 24, 2026Single Family1
$998,0001,924$5195,5001960Apr 23, 2026Two/Three Family2
$237,5001,837$1295,0001965Apr 23, 2026Single Family1

Showing 25 of 100 sales

Neighborhood Profile

Population

30,800

Median Income

$72,000

Owner-Occupied

55.0%

Median Age

39.2

Owner vs Renter

Staten Island FerryN/A

Ferry service available from St. George only

SIM Express Bus55 min
Driving40 min

Via Verrazzano-Narrows Bridge

Estimated one-way travel times to Lower Manhattan during weekday rush hour.