Unlock a rare development opportunity in the sought-after neighborhood of Emerald Hills. Totaling just under 30,000 sq ft, this unique offering presents exceptional potential for those seeking to create a custom estate in a private, tranquil setting with Bay views. Years of preliminary planning, design concepts and reports are underway for a 3,329 sq ft residence, offering a valuable head start toward future development possibilities. A Builder Package is available. Artistic renderings are conceptual only and provided solely for illustrative purposes. The property includes an existing 1,320 sq ft residence, totaling 2 bedrooms and 2 bathrooms across two levels, providing flexibility for interim use while exploring future plans. Connected to city water and sewer, the site combines convenience with the natural beauty and privacy that make Emerald Hills one of the Peninsulas most desirable hillside communities. Located approximately 12 minutes from downtown Redwood City, the property offers a rare blend of seclusion and accessibility. Buyer to investigate and verify all aspects of the property, including development and improvement potential, to buyers satisfaction through the appropriate governmental agencies, consultants, and licensed professionals.
Vacant landProperty Type
0.68 acresLot Size
$2,058,824Price/Acres
Listed by Charlene Bernhardt•DRE #02144591• Compass
Listed by Cindy Cockcroft•DRE #00916374• Compass
Contact: 408-540-9707
Bought with Belinda Yan•DRE #02319113• Fifty Hills Real Estate
Bought with Patrick Gonzales•DRE #02050639• KW Advisors
No interior access between floors. Drive way is very very steep, and stairs leading up to the house are uneven. Parking is limited on the street. Bay views from the large deck upstairs.
14 years ago• May not reflect the current state of the home
Jane Hansen
Redfin Associate agent
Sale and tax history for 642 Park Rd
Sale History
Tax History
Date
Event
Price
MLSListings #ML82046906
Aug 25, 2026
Sold
$1,400,000
Aug 20, 2026
Pending
—
Jun 12, 2026
Pending
—
Jun 12, 2026
Contingent
—
Jun 5, 2026
Price Changed
$1,398,000
May 12, 2026
Listed
$1,598,000
Unlock a rare development opportunity in the sought-after neighborhood of Emerald Hills. Totaling just under 30,000 sq ft, this unique offering presents exceptional potential for those seeking to create a custom estate in a private, tranquil setting with Bay views. Years of preliminary planning, design concepts and reports are underway for a 3,329 sq ft residence, offering a valuable head start toward future development possibilities. A Builder Package is available. Artistic renderings are conceptual only and provided solely for illustrative purposes. The property includes an existing 1,320 sq ft residence, totaling 2 bedrooms and 2 bathrooms across two levels, providing flexibility for interim use while exploring future plans. Connected to city water and sewer, the site combines convenience with the natural beauty and privacy that make Emerald Hills one of the Peninsulas most desirable hillside communities. Located approximately 12 minutes from downtown Redwood City, the property offers a rare blend of seclusion and accessibility. Buyer to investigate and verify all aspects of the property, including development and improvement potential, to buyers satisfaction through the appropriate governmental agencies, consultants, and licensed professionals.
MLSListings #1
Jun 5, 2026
Price Changed
$1,398,000
MLSListings #ML81519892
Dec 11, 2015
Sold
$880,000
Dec 3, 2015
Pending
—
Nov 13, 2015
Contingent
—
Oct 23, 2015
Listed
$979,000
MLSListings #ML81221903
Sep 28, 2012
Sold
$694,000
Aug 4, 2012
Pending
—
Jul 8, 2012
Pending
—
Jun 10, 2012
Listed
$699,000
MLSListings #ML80396166
Jul 8, 2004
Sold
$770,000
Jun 24, 2004
Listing Removed
—
May 10, 2004
Listed
$799,000
Public Records
Nov 10, 1999
Sold
$430,000
bridgeMLS, Bay East AOR, or Contra Costa AOR #ML89939215
Nov 15, 1999
Sold
$435,000
Nov 15, 1999
Listing Removed
—
Oct 5, 1999
Sold
$435,000
Sep 2, 1999
Listed
$499,000
Year
Property tax
Land + Additions
Assessment*
2025
$13,443 (+1.5%)
$941,826 + $120,744
$1,062,570
2024
$13,246 (+1.9%)
$923,359 + $118,377
$1,041,736
2023
$13,004 (+4.8%)
$905,254 + $116,056
$1,021,310
2022
$12,407 (+1.5%)
$887,504 + $113,781
$1,001,285
2021
$12,229 (+1.8%)
$870,102 + $111,550
$981,652
2020
$12,012 (+1.0%)
$853,042 + $109,363
$962,405
2019
$11,899 (+3.0%)
$844,296 + $108,242
$952,538
2018
$11,553 (+2.2%)
$827,742 + $106,120
$933,862
2017
$11,308 (+4.0%)
$795,600 + $102,000
$897,600
2016
$10,871 (+25.0%)
$795,600 + $102,000
$897,600
2015
$8,698 (+2.2%)
$780,000 + $100,000
$880,000
2014
$8,509 (+4.4%)
$348,575 + $348,575
$697,150
2012
$8,148 (+1.3%)
$347,000 + $347,000
$694,000
2011
$8,045 (−17.0%)
$583,500 + $87,500
$671,000
2010
$9,692 (+0.8%)
$583,770 + $87,230
$671,000
2009
$9,613 (+2.9%)
$723,510 + $107,985
$831,495
2008
$9,341
$725,229 + $108,242
$833,471
Public record
Public record
Zoning
Permits
Beds
2
Baths
2
Stories
1
Lot width
—
Lot depth
—
Lot size
0.68 Acres
Year renovated
1942
Sq. Ft.
1,320
Year built
1937
Style
Single Family Residential
County
San Mateo County
APN
057164120
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 19, 2026.
RH
DR
Residential Hillside District
The purposes of the Residential Hillside District are to: Provide residential areas intended primarily for the location of one-family dwellings, accessory structures and uses on hillside parcels; Accommodate a compatible mix of institutional and recreational landuses to serve the needs of residential areas; Protect the health, safety and welfare of residential inhabitants by restricting incompatible land uses; Encourage architectural design and site planning which will preserve the natural character of hillside areas, particularly with respect to topography, vegetation and scenic qualities; and Implement the policies of the San Mateo County General Plan, especially those concerning development in hillside areas.
Zone overlays
Design Review Districts
Permitted uses
Include but are not limited to:
Religious facility
Educational/school
Fire house
Golf related
Cemetery
Park & open space
Dec 6, 2013 • Final
Building
Upgrade the electrical service to 200 amps.
Electrical
Dec 6, 2013 • Final
Building
Reinstate a permit for the conversion of a septic system to a sewer connection.
Plumbing
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Virtual Tour
Exterior
Exterior Features
Fencing: Partial Fencing
Building Information
Subclass: Residential Lot
Property Information
Development Status: Improvements Plans Avail
Ownership Type: Individual
Present Use: Residential
Property Primary ID: 198300
Lot Information
Lot Description: Grade (Sloped Up), Grade (Steep)
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Lot Size Source: Assessor
Zoning: RH0S18
Utilities
Utility Information
Sewer Septic: Sewer (Public)
Utilities: Public Utilities
Water Information
Water: Public
Location
School Information
Elementary School District: Redwood City Elementary
High School District: Sequoia Union High
Public facts
Beds: 2
Baths: 2.0
Sq. Ft.: 1,320
Stories: 1.0
Lot Size: 0.68 acres
Style: Single Family Residential
Year Built: 1937
Year Renovated: 1942
County: San Mateo County
APN: 057164120
Home facts updated by county records on Oct 19, 2026
Other
Miscellaneous Information
Incorporated: Yes
Around this home
Schools
Roy Cloud Elementary School
Public K-8 • Assigned • 0.7mi
9/10
Woodside High School
Public 9-12 • Assigned • 2.3mi
8/10
Provided by GreatSchools
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
2/10 Fire Factor
0.00% chance of being in a wildfire in next 30 years
2/10 Heat Factor
5 days above 94° expected this year, 10 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
7/10 Air Factor
12 unhealthy days expected this year, 12 days in 30 years
Provided by First Street
Historical weather
Emerald Hills, CA • 94062
Average low and high temperatures (°F)
57
41
58
43
64
46
62
44
67
46
71
49
73
51
76
53
74
55
71
49
59
43
56
42
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
88/ 100
Very good sunlight
Sunscore
This home ranks in the top 19% for direct sun exposure in Emerald Hills. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9.5 hrs
4.4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.71M – $2.07M
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