Evoking the romance and timeless elegance of classic Spanish Colonial Revival architecture, this enchanting residence welcomes with a sun-drenched brick courtyard framed by lush gardens and climbing bougainvillea. Rich in character, the home showcases exposed wood beams, hand-laid terracotta tile, and artisan-inspired finishes that create a warm yet sophisticated ambiance throughout. Designed for effortless indoor-outdoor living, the expansive courtyard terrace offers multiple gathering spaces ideal for entertaining, quiet mornings, or alfresco dining beneath the canopy of mature landscaping. A sprawling lawn with a grand fountain frame the rear of the property. Charming balconies, arched passageways, and architectural detailing lend an old-world European feel while abundant natural light enhances the homes inviting atmosphere. Inside, the home boasts nearly 6,000 square feet of living space, including multiple separate living quarters perfect for large families, live-in help or guests. Exquisite woodwork and details are abundant throughout the household, with hand-carved fireplaces, curved leaded glass windows, and hand-painted murals. Private, serene, and full of architectural distinction, this is a rare offering that captures the beauty and craftsmanship of a bygone era.
Single-familyProperty Type
1930Year Built
0.48 acresLot Size
$1,292Price/Sq.Ft.
2 car garageParking
Listed by Pierre & Alex Buljan•DRE #70014994• Compass
Contact: 650-400-1188
Bought with Charles Griffith•DRE #01899593• Golden Gate Sotheby's International Realty
Est. $10,620 per month, based on comparable rentals
Sale and tax history for 420 El Arroyo Rd
Sale History
Tax History
Date
Event
Price
MLSListings #ML82046653
Jun 10, 2026
Sold
$6,500,000
$1,292/sq ft
May 12, 2026
Pending
—
May 11, 2026
Listed
$5,995,000
$1,192/sq ft
+19
Evoking the romance and timeless elegance of classic Spanish Colonial Revival architecture, this enchanting residence welcomes with a sun-drenched brick courtyard framed by lush gardens and climbing bougainvillea. Rich in character, the home showcases exposed wood beams, hand-laid terracotta tile, and artisan-inspired finishes that create a warm yet sophisticated ambiance throughout. Designed for effortless indoor-outdoor living, the expansive courtyard terrace offers multiple gathering spaces ideal for entertaining, quiet mornings, or alfresco dining beneath the canopy of mature landscaping. A sprawling lawn with a grand fountain frame the rear of the property. Charming balconies, arched passageways, and architectural detailing lend an old-world European feel while abundant natural light enhances the homes inviting atmosphere. Inside, the home boasts nearly 6,000 square feet of living space, including multiple separate living quarters perfect for large families, live-in help or guests. Exquisite woodwork and details are abundant throughout the household, with hand-carved fireplaces, curved leaded glass windows, and hand-painted murals. Private, serene, and full of architectural distinction, this is a rare offering that captures the beauty and craftsmanship of a bygone era.
Year
Property tax
Land + Additions
Assessment*
2025
$10,815 (+2.8%)
$110,742 + $400,037
$510,779
2024
$10,523 (+2.4%)
$108,571 + $392,194
$500,765
2023
$10,275 (+4.0%)
$106,443 + $384,504
$490,947
2022
$9,880 (+2.8%)
$104,356 + $376,965
$481,321
2021
$9,609 (+2.4%)
$102,310 + $369,574
$471,884
2020
$9,388 (+3.7%)
$100,304 + $362,328
$462,632
2019
$9,055 (+4.0%)
$99,276 + $358,613
$457,889
2018
$8,702 (+4.0%)
$97,330 + $351,582
$448,912
2017
$8,366 (+4.7%)
$93,551 + $337,931
$431,482
2016
$7,994 (+3.6%)
$93,551 + $337,931
$431,482
2015
$7,717 (+3.5%)
$91,717 + $331,305
$423,022
2014
$7,458 (−2.6%)
$88,571 + $319,937
$408,508
2012
$7,655 (+7.5%)
$88,171 + $318,492
$406,663
2011
$7,121 (+2.7%)
$86,443 + $312,248
$398,691
2010
$6,934 (+1.2%)
$84,749 + $306,126
$390,875
2009
$6,853 (+2.1%)
$84,116 + $303,839
$387,955
2008
$6,710
$84,316 + $304,561
$388,877
Public record
Public record
Permits
Beds
6
Baths
4.5
Stories
2
Lot width
—
Lot depth
—
Lot size
0.48 Acres
Year renovated
—
Sq. Ft.
5,030
Year built
1930
Style
Single Family Residential
County
San Mateo County
APN
031012210
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 2, 2026.
Aug 21, 2027 • Active
Utility infrastructure
Excavate a bell hole in the street to replace the gas service.
Gas
May 26, 2027 • Active
Lower sewer lateral
Install a new sewer line and perform work on the water and sewer systems.
Gas
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.
Fireplace Description: In Living Room, In Primary Bedroom, Other (See Remarks)
Heating & Cooling Information
Heating: Central Forced Air
Exterior
Exterior Features
Roof: Tile
Building Information
Style: Spanish
Subclass: Single Family Home
Building Type: Detached
Crawl Space, Other
Property Features
Living Sq. Ft.: 5,030
Property Information
Property Primary ID: 299853
Lot Information
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Lot Size Source: Assessor
Zoning: R10025
Financial
Tax/Assessment Information
City Transfer Tax: Yes
Utilities
Utility Information
Sewer Septic: Sewer (Public)
Utilities: Public Utilities
Water Information
Water: Public
Location
Multi-Unit Information
# of Stories: 2
School Information
Elementary School: North Hillsborough
Elementary School District: Hillsborough City Elementary
Middle School: Crocker Middle
High School: San Mateo High
High School District: San Mateo Union High
Public facts
Beds: 6
Baths: 4.5
Sq. Ft.: 5,030
Stories: 2.0
Lot Size: 0.48 acres
Style: Single Family Residential
Year Built: 1930
Year Renovated: —
County: San Mateo County
APN: 031012210
Home facts updated by county records on Sep 2, 2026
Around this home
Schools
North Hillsborough School
Public K-5 • Assigned • 0.7mi
9/10
Crocker Middle School
Public 6-8 • Assigned • 0.7mi
8/10
San Mateo High School
Public 9-12 • Assigned • 1.9mi
9/10
Provided by GreatSchools
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
2/10 Heat Factor
4 days above 85° expected this year, 9 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
Hillsborough, CA • 94010
Average low and high temperatures (°F)
60
47
62
48
67
50
65
51
68
52
70
54
71
57
72
58
73
61
72
57
63
52
59
50
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
89/ 100
Very good sunlight
Sunscore
This home ranks in the top 30% for direct sun exposure in Hillsborough. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
10 hrs
6.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$8.94M – $10.82M
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