307 Warrenville Rd is a 2,794 square foot house on a 4.62 acre lot. - it last sold on February 18, 1999 for $170,000. Based on Redfin's Green Brook data, we estimate the home's value is $887,864.
Single-familyProperty Type
1970Year Built
4.62 acresLot Size
$318Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$887,864
$718K since sold in February 1999$9,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6.4% higher than the average sale price ($835K) 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.
Zoning
MP
Mountain Preservation District
The Township of Green Brook includes a portion of the Watchung Ridge, parts of which contains slopes exceeding 20 percent grade. Such area, designated in this ordinance as the MP Mountain Preservation District, has physical conditions which preclude development, and the stripping of such woodlands, and development thereof would constitute dangers and hazards to life and public and private property and facilities, and the great increase in flooding of low-lying areas. Accordingly, if such area is to be developed at all, or changed in any manner from its existing natural wooded state, such development or changes must be strictly limited and carefully planned so as not to aggravate the serious water problems now coming from said area, and so as not to destroy the purposes served by such areas in maintaining the environment and preventing erosion, flooding, and other hazards.
Permitted uses
Include but are not limited to:
No uses permitted by right
Property details
Exterior
Property Information
Living Sq. Ft: 2,794
# of Stories: 1
Legal Description: ALSO LOT 31
Lot Information
# of Buildings: 1
Land Sq. Ft: 201,247
Legal Lot Number: 30
Legal Block Number: 108
Acres: 4.62
Zoning Code: MP
State Use Description: RESIDENTIAL
Financial
Assessor Information
Assessment Year: 2026
Tax District County: GREEN BROOK TWP
Public facts
Beds: —
Baths: —
Sq. Ft.: 2,794
Stories: 1.0
Lot Size: 4.62 acres
Style: Single Family Residential
Year Built: 1970
Year Renovated: —
County: Somerset County
APN: 0900108 00030
Home facts updated by county records on Jul 6, 2026
Around this home
Schools
Irene E Feldkirchner Elementary School
Public PreK-4 • Assigned • 0.6mi
6/10
Green Brook Middle School
Public 5-8 • Assigned • 1.3mi
6/10
Watchung Hills Regional High School
Public 9-12 • Assigned • 3.5mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
5/10 Heat Factor
7 days above 102° expected this year, 14 days in 30 years
6/10 Wind Factor
27% chance of strong winds in next 30 years
3/10 Air Factor
2 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Green Brook, NJ • 08812
Average low and high temperatures (°F)
36
21
40
25
57
35
65
44
72
53
82
63
88
70
82
62
78
60
69
48
56
38
41
26
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 8.7 hours in
June and 4.3 hours in December, placing it below the
U.S. average for solar exposure.
8.7 hrs
4.3 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$844,000 – $1.02M
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