OFF MARKET

Off Market Jul 2014 for $9.3M

$15,069,585

Est. refi paymentEst. refi $40,416/mo

•

7,290

sq ft

18 RESERVOIR Rd, Atherton, CA 94027

About this home

Masterfully rebuilt from top to bottom by renowned builder and designer. Top location with complete privacy, expansive lawns situated on over an acre. State of the art systems and amenities provide the utmost in comfort and convenience. In addition to main house of 5 bed, is a 2 bed 2 bath guest house with great room, exercise and full kitchen, 4-car garage. Graceful elegance and comfort awaits.

Single-familyProperty Type

1995Year Built

1.16 acresLot Size

$2,067Est. Price/Sq.Ft.

Listed by Judy Citron •DRE #01825569 • Alain Pinel Realtors

Contact: (650) 543-1206

Bought with Colleen Foraker •DRE #01349099 • Golden Gate Sotheby's International Realty

Redfin checked: 2 minutes ago

•Source:MLSListings #ML81402472

Redfin Estimate

$15,069,585

$5.8M since sold in July 2014$896K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 45.9% higher than the average sale price ($10.33M) of 4 comparable homes.

SOLD JUL 31, 2026
$7,755,000
A
5 beds5 baths4,717 sq ft
306 Walsh Rd, Atherton, CA 94027
SOLD JUN 22, 2026
$15,500,000
B
6 beds3 baths5,992 sq ft
450 Walsh Rd, Atherton, CA 94027
SOLD APR 17, 2026
$8,050,000
C
4 beds3.5 baths5,106 sq ft
5 Ridge View Dr, Atherton, CA 94027
SOLD APR 3, 2026
$10,000,000
D
5 beds4.5 baths6,000 sq ft
2 Callado Way, Atherton, CA 94027

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Earn from this home

Sell

$8,877,432

Est. take-home

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Refinance

Est. cash available

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Rent

$11,549/mo

Redfin rental estimate

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Market trends in 94027, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

106.6%

+2.6% MoM

Median sale price

$12.0M

$795K MoM

Avg. days on market

19d

2 days MoM

Recently sold homes

7 MoM

New listings for sale

OPEN SAT, 2PM TO 4PM
$6,790,000
1 bed3 baths3,880 sq ft
2 Irving Ave, Atherton, CA 94027
OPEN SAT, 2PM TO 4PM
$4,888,000
4 beds3 baths2,604 sq ft
57 Wilburn Ave, Atherton, CA 94027
$22,000,000
6 beds7 baths7,905 sq ft
51 Valley Rd, Atherton, CA 94027
(415) 846-4685
EARLY ACCESS
$15,800,000
4 beds5 baths5,800 sq ft
187 Atherton Ave, Atherton, CA 94027
VIDEO TOUR
$12,998,000
4 beds4.5 baths4,286 sq ft
368 Camino Al Lago, Atherton, CA 94027
3D WALKTHROUGH
$5,888,000
5 beds4.5 baths3,765 sq ft
28 Holbrook Ln, Atherton, CA 94027
See all

Provided by Redfin

Sale history for 18 RESERVOIR Rd

Date

Event

Price

MLSListings #ML81402472

Jul 1, 2014

Sold

$9,300,000

$1,276/sq ft

Apr 24, 2014

Price Changed

$9,980,000

$1,369/sq ft

Apr 24, 2014

Pending

—

Mar 23, 2014

Price Changed

$10,995,000

$1,508/sq ft

Jan 27, 2014

Listed

$11,980,000

$1,643/sq ft

Public Records

Nov 16, 2011

Sold

$4,560,000

$626/sq ft

MLSListings #ML81139269

Sep 30, 2011

Sold

$4,399,000

$603/sq ft

Sep 21, 2011

Pending

—

Sep 12, 2011

Listed

$4,399,000

$603/sq ft

+12

CUSTOM BUILT BY PPG. REMINISCENT OF AN EAST COAST MANOR W/ CLASSIC GATED ENTRANCE OVER 1 ACRE OF STUNNING GARDENS BY RENOWNED LANSCP DESIGNER B. DERRINGER. BRICK & FLAGSTONE TERRACES, SUNSWEPT LAWNS, LIGHTED GAZEBO, BOUNTIFUL ORCH. TRAD. FLRPLN, 2 LVLS BRIGHT, LIGHT W/ MAPLE FLRS, LOFTY CEILINGS, CLERESTORY WNDWS, SKYLTS. HANDSOME LIBRARY & UPSTAIRS PLYRM/DEN. DET 2 CAR GAR/W HUGE FIN STORAGE. GST PKING

Year

Property tax

Land + Additions

Assessment*

2025

$125,731 (+1.2%)

$7,949,874 + $3,611,455

$11,561,329

2024

$124,209 (+1.6%)

$7,793,995 + $3,540,643

$11,334,638

2023

$122,265 (+2.8%)

$7,641,172 + $3,471,220

$11,112,392

2022

$118,902 (+1.6%)

$7,491,346 + $3,403,158

$10,894,504

2021

$117,038 (+2.3%)

$7,344,457 + $3,336,430

$10,680,887

2020

$114,435 (−3.1%)

$7,200,449 + $3,271,010

$10,471,459

2019

$118,129 (+5.1%)

$7,126,618 + $3,237,471

$10,364,089

2018

$112,404 (+2.8%)

$6,986,881 + $3,173,992

$10,160,873

2017

$109,392 (+0.7%)

$6,715,573 + $3,050,746

$9,766,319

2016

$108,672 (+3.3%)

$6,715,573 + $3,050,746

$9,766,319

2015

$105,221 (+57.7%)

$6,583,896 + $2,990,928

$9,574,824

2014

$66,711 (+29.1%)

$2,336,158 + $3,421,158

$5,757,316

2012

$51,669 (+146.4%)

$2,325,600 + $2,620,600

$4,946,200

2011

$20,971 (+1.4%)

$2,280,000 + $2,280,000

$4,560,000

2010

$20,685 (+0.9%)

$1,056,697 + $702,730

$1,759,427

2009

$20,493 (+2.8%)

$1,048,800 + $697,478

$1,746,278

2008

$19,939

$1,051,292 + $699,135

$1,750,427

Tax history for 18 RESERVOIR Rd

Year

Property tax

Land + Additions

Assessment*

2025

$125,731 (+1.2%)

$7,949,874 + $3,611,455

$11,561,329

2024

$124,209 (+1.6%)

$7,793,995 + $3,540,643

$11,334,638

2023

$122,265 (+2.8%)

$7,641,172 + $3,471,220

$11,112,392

2022

$118,902 (+1.6%)

$7,491,346 + $3,403,158

$10,894,504

2021

$117,038 (+2.3%)

$7,344,457 + $3,336,430

$10,680,887

2020

$114,435 (−3.1%)

$7,200,449 + $3,271,010

$10,471,459

2019

$118,129 (+5.1%)

$7,126,618 + $3,237,471

$10,364,089

2018

$112,404 (+2.8%)

$6,986,881 + $3,173,992

$10,160,873

2017

$109,392 (+0.7%)

$6,715,573 + $3,050,746

$9,766,319

2016

$108,672 (+3.3%)

$6,715,573 + $3,050,746

$9,766,319

2015

$105,221 (+57.7%)

$6,583,896 + $2,990,928

$9,574,824

2014

$66,711 (+29.1%)

$2,336,158 + $3,421,158

$5,757,316

2012

$51,669 (+146.4%)

$2,325,600 + $2,620,600

$4,946,200

2011

$20,971 (+1.4%)

$2,280,000 + $2,280,000

$4,560,000

2010

$20,685 (+0.9%)

$1,056,697 + $702,730

$1,759,427

2009

$20,493 (+2.8%)

$1,048,800 + $697,478

$1,746,278

2008

$19,939

$1,051,292 + $699,135

$1,750,427

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning
Permits

Beds

Baths

4.5

Stories

Lot width

—

Lot depth

—

Lot size

1.17 Acres

Year renovated

1997

Sq. Ft.

4,908

Year built

1995

Style

Single Family Residential

County

San Mateo County

APN

073212210

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 2, 2026.

R-1A

Residential District

This chapter identifies the allowed use and permit requirements and development standards for the residential district R-1A. The intent of this district is to implement the residential land use categories of the town’s general plan. It is designed to designate land for the development of residential uses consistent with the development regulations set forth in this title.

Permitted uses

Include but are not limited to:

Housing
Housing-Single unit

Property details

Parking

Parking Information
Garage (Minimum): 3
Parking Description: Detached, Gate/Door Opener, Guest/Visitor Parking, Off-Street Parking

Interior

Bedroom Information
# of Bedrooms (Minimum): 5
# of Bedrooms (Maximum): 5
Bedrooms: Primary Suite/Retreat, Ground Floor Bedroom

Bathroom Information
# of Baths (Full): 4
# of Baths (1/2): 1
# of Baths (Minimum): 5
# of Baths (Maximum): 5
Bathroom Description: 2+ Showers Over Tubs, 2+ Tubs, 2+ Stall Shower, Steam Shower

Room Information
Library, Formal Entry, Guest House, Guest Quarters
Family Room Description: Separate Family Room
Dining Room Description: Formal Dining Room, Breakfast Room
Kitchen Description: Garbage Disposal, Refrigerator(s), Oven Range, 2+ Dishwashers, Microwave, 2+ Refrigerators, 220 Volt Outlet, Hookups (Gas)
Guest House

Interior Features
Laundry: In Laundry Room, Dryer, Washer, 220 Volt Outlet
Flooring: Tile, Carpet (Wall-to-Wall), Hardwood, Marble

Fireplace Information
Fireplace Description: In Family Room, In Living Room, In Primary Bedroom, In Other Location, Insert, Gas Log, Two-Way, Fireplace Available

Heating & Cooling Information
Cooling: Central Forced Air
Heating: Heating (2+ Zones), Forced Air

Exterior

Exterior Features
Roof: Shake
Yard/Grounds: Patio(s), Patio(s)/Deck(s) (Covered), Sprinkler(s) (Front), Sprinkler(s) (Rear), Sprinkler(s) (Auto), Fenced

Building Information
Style: Cape Cod
Subclass: Single Family Home
Building Type: Detached
Exterior: Wood
Concrete Perimeter and Slab
Building Height (Minimum): 2
Building Height (Maximum): 2

Property Features
Amenities: Double Pane Windows(s), High Ceiling, Vacuum (Central)
Living Sq. Ft.: 7,290
Security Features: Security Alarm (Owned), Fire Alarm

Property Information
Level (Street/Main): Bedroom(s)
Property Primary ID: 342640

Lot Information
Lot Description: Grade (Level)
Lot Location: Corner
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Lot Size Source: Assessor
Zoning: R1

Utilities

Utility Information
Energy Features: Double Pane Windows, Skylight(s), Attic Fan
Sewer Septic: Sewer in Street, Sewer Connected

Water Information
Water: Public

Location

Multi-Unit Information
# of Stories: 2

School Information
Elementary School District: Menlo Park City Elementary
Middle School: Hillview Middle
High School: Menlo-Atherton High
High School District: Sequoia Union High

Public facts

Beds: 4
Baths: 4.5
Sq. Ft.: 4,908
Stories: 2.0
Lot Size: 1.17 acres
Style: Single Family Residential
Year Built: 1995
Year Renovated: 1997
County: San Mateo County
APN: 073212210

Home facts updated by county records on Sep 2, 2026

Other

Miscellaneous Information
Incorporated: Yes

Around this home

Schools

Las Lomitas Elementary School

Public K-3 • Assigned • 0.7mi

10/10

La Entrada Middle School

Public 4-8 • Assigned • 1.0mi

10/10

Woodside High School

Public 9-12 • Assigned • 1.2mi

8/10

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

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

3/10 Heat Factor

7 days above 95° expected this year, 13 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

Atherton, CA • 94027

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 10.7 hours in June and 5 hours in December, placing it above the U.S. average for solar exposure.

10.7 hrs

5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$14.32M – $17.33M

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3D & VIDEO TOUR

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New listings for sale in 94027

OPEN SAT, 2PM TO 4PM

$6,790,000

1 bed3 baths3,880 sq ft

2 Irving Ave, Atherton, CA 94027

OPEN SAT, 2PM TO 4PM

$4,888,000

4 beds3 baths2,604 sq ft

57 Wilburn Ave, Atherton, CA 94027

$22,000,000

6 beds7 baths7,905 sq ft

51 Valley Rd, Atherton, CA 94027

(415) 846-4685

EARLY ACCESS

$15,800,000

4 beds5 baths5,800 sq ft

187 Atherton Ave, Atherton, CA 94027

VIDEO TOUR

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3D WALKTHROUGH

$5,888,000

5 beds4.5 baths3,765 sq ft

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Home values near 18 RESERVOIR Rd

Data from public records.

Address	Redfin Estimate
76 Reservoir Rd, Atherton, CA 5 Beds \| 4 Baths \| 3250 Sq. Ft.	$6,747,190
54 Reservoir Rd, Atherton, CA 4 Beds \| 3 Baths \| 2785 Sq. Ft.	$10,429,140

Address	Redfin Estimate
78 Reservoir Rd, Atherton, CA 6 Beds \| 6.5 Baths \| 8700 Sq. Ft.	$11,099,167
30 Reservoir Rd, Atherton, CA 4 Beds \| 3 Baths \| 2870 Sq. Ft.	$5,651,162

Address	Redfin Estimate
32 Reservoir Rd, Atherton, CA 4 Beds \| 3.5 Baths \| 3240 Sq. Ft.	$6,223,095
2 Belbrook Way, Atherton, CA 5 Beds \| 5.5 Baths \| 5895 Sq. Ft.	$14,737,431

Property information provided by MLSListings when last listed in 2014. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94027, CA

Sale history for 18 RESERVOIR Rd

Tax history for 18 RESERVOIR Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94027

Home values near 18 RESERVOIR Rd

More real estate resources