20 Bayside Rd is a 804 square foot house on a 7,841 square foot lot. - it last sold on May 04, 2017 for $60,000. Based on Redfin's Mastic Beach data, we estimate the home's value is $294,053.
Single-familyProperty Type
1936Year Built
7,841 sq ftLot Size
$366Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$294,053
$234K since sold in May 2017$32K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 19.1% lower than the average sale price ($363K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Property details
Exterior
Property Information
Subdivision Name: MASTIC BEACH MAP 5
Ground Floor Sq. Ft: 804
Building Sq. Ft: 804
Legal Description: MASTIC BEACH 5 1005 820 TO 823 INC
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,841
Legal Lot Number: 78
Legal Block Number: 4005
Municipality Name: BROOKHAVEN
Acres: 0.18
State Use Description: SINGLE FAMILY RESID
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: —
Baths: —
Sq. Ft.: 804
Stories: —
Lot Size: 7,841 square feet
Style: Single Family Residential
Year Built: 1936
Year Renovated: —
County: Suffolk County
APN: 0200983401400078001
Home facts updated by county records on Aug 31, 2026
Around this home
Schools
John S Hobart Elementary School
Public K-5 • Assigned • 2.6mi
7/10
William Paca Middle School
Public 6-8 • Assigned • 1.9mi
5/10
William Floyd High School
Public 9-12 • Assigned • 2.3mi
3/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
10/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.31% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 92° expected this year, 20 days in 30 years
8/10 Wind Factor
80% chance of strong winds in next 30 years
3/10 Air Factor
3 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Mastic Beach, NY • 11951
Average low and high temperatures (°F)
36
24
38
25
49
35
57
43
64
53
76
63
81
69
77
63
73
60
65
49
55
39
42
28
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
92/ 100
Exceptional sunlight
Sunscore
This home ranks in the top 17% for direct sun exposure in Mastic Beach. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9.2 hrs
5.5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$280,000 – $339,000
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