Google street view image for 21 Castillo, Irvine, CA 92620

Off market sep 1986 for $203K

$1,695,237

Est. refi paymentEst. refi $1,378/mo

•

2.5 ba

•

2,399

sq ft

21 Castillo, Irvine, CA 92620

About this home

21 Castillo is a 2,399 square foot house on a 5,215 square foot lot with 4 bedrooms and 2.5 bathrooms. - it last sold on September 26, 1986 for $203,000. Based on Redfin's Irvine data, we estimate the home's value is $1,695,237.

Single-familyProperty Type

1978Year Built

5,215 sq ftLot Size

$707Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,695,237

$1.5M since sold in September 1986$9,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 9.2% lower than the average sale price ($1.87M) of 6 comparable homes.

SOLD AUG 18, 2026
$1,885,000
A
4 beds2.5 baths2,400 sq ft
26 Alegria, Irvine, CA 92620
Keller Williams Realty Irvine
SOLD JUN 9, 2026
$1,900,000
B
4 beds3 baths2,400 sq ft
15 Ensueno E, Irvine, CA 92620
SOLD FEB 4, 2026
$1,800,000
C
4 beds2.5 baths2,416 sq ft
4 Abeto, Irvine, CA 92620
SOLD JAN 29, 2026
$1,800,000
D
4 beds2.5 baths2,391 sq ft
15 Colonial, Irvine, CA 92620
SOLD SEP 15, 2026
$1,730,000
E
4 beds2.5 baths2,086 sq ft
27 Campanero E, Irvine, CA 92620
SOLD AUG 31, 2026
$2,090,000
F
4 beds2.5 baths2,559 sq ft
28 Cambridge, Irvine, CA 92620

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Earn from this home

Sell

$1,607,658

Est. take-home

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Est. cash available

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Rent

$5,601/mo

Redfin rental estimate

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Market trends in 92620, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

97.9%

+0.1% MoM

Median sale price

$1.6M

$3K MoM

Avg. days on market

46d

2 days MoM

Recently sold homes

102

4 MoM

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See all

Provided by Redfin

Sale history for 21 Castillo

Year

Property tax

Land + Additions

Assessment*

2025

$5,127 (+2.2%)

$244,971 + $234,697

$479,668

2024

$5,015 (+2.7%)

$244,971 + $234,697

$479,668

2023

$4,885 (+2.0%)

$240,167 + $230,096

$470,263

2022

$4,787 (+2.4%)

$235,458 + $225,585

$461,043

2021

$4,675 (+0.6%)

$230,841 + $221,162

$452,003

2020

$4,648 (+2.3%)

$226,315 + $216,826

$443,141

2019

$4,544 (+1.8%)

$223,995 + $214,603

$438,598

2018

$4,461 (+2.1%)

$219,603 + $210,396

$429,999

2017

$4,368 (+4.6%)

$211,075 + $202,227

$413,302

2016

$4,176 (+2.9%)

$211,075 + $202,227

$413,302

2015

$4,059 (+2.0%)

$206,937 + $198,262

$405,199

2014

$3,979 (+0.4%)

$199,836 + $191,459

$391,295

2013

$3,961 (+2.0%)

$199,836 + $191,459

$391,295

2012

$3,884 (+2.0%)

$198,933 + $190,594

$389,527

2011

$3,808 (+0.8%)

$195,033 + $186,857

$381,890

2010

$3,778 (−0.2%)

$191,208 + $183,194

$374,402

2009

$3,787 (+2.0%)

$189,779 + $181,825

$371,604

2008

$3,713

$190,230 + $182,257

$372,487

Tax history for 21 Castillo

Year

Property tax

Land + Additions

Assessment*

2025

$5,127 (+2.2%)

$244,971 + $234,697

$479,668

2024

$5,015 (+2.7%)

$244,971 + $234,697

$479,668

2023

$4,885 (+2.0%)

$240,167 + $230,096

$470,263

2022

$4,787 (+2.4%)

$235,458 + $225,585

$461,043

2021

$4,675 (+0.6%)

$230,841 + $221,162

$452,003

2020

$4,648 (+2.3%)

$226,315 + $216,826

$443,141

2019

$4,544 (+1.8%)

$223,995 + $214,603

$438,598

2018

$4,461 (+2.1%)

$219,603 + $210,396

$429,999

2017

$4,368 (+4.6%)

$211,075 + $202,227

$413,302

2016

$4,176 (+2.9%)

$211,075 + $202,227

$413,302

2015

$4,059 (+2.0%)

$206,937 + $198,262

$405,199

2014

$3,979 (+0.4%)

$199,836 + $191,459

$391,295

2013

$3,961 (+2.0%)

$199,836 + $191,459

$391,295

2012

$3,884 (+2.0%)

$198,933 + $190,594

$389,527

2011

$3,808 (+0.8%)

$195,033 + $186,857

$381,890

2010

$3,778 (−0.2%)

$191,208 + $183,194

$374,402

2009

$3,787 (+2.0%)

$189,779 + $181,825

$371,604

2008

$3,713

$190,230 + $182,257

$372,487

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

Zoning

2.2

Low Density Residential District

This category allows zero to 6.5 dwelling units per net acre, which is approximately equivalent to the General Plan Low Density category of zero to five dwelling units per gross acre. Attached and conventional housing, as well as other appropriate uses such as churches and child care centers, are allowed.; (2.2A and 2.2B) University Park (Planning Area 20).; (2.2C) Westpark (Planning Area 14).; (2.2D) Orchard Hills (Planning Area 1).

Permitted uses

Include but are not limited to:

Housing-Single unit
Housing-Other
Educational / school
Park & open space

Property details

Interior

Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1

Exterior

Exterior Information
Building Type: Single Family

Property Information
Living Sq. Ft: 2,399
Gross Sq. Ft: 3,010
Building Sq. Ft: 3,010
Legal Description: N-TRACT: 9418 BLOCK: LOT: 15

Parking & Garage Information
Garage/Parking Sq. Ft: 611

Lot Information
# of Buildings: 1
Land Sq. Ft: 5,215
Legal Lot Number: 15
Acres: 0.1197
Depth Footage: 104
Front Footage: 50
County Use Description: SINGLE FAM RESIDENCE

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 4
Baths: 2.5
Sq. Ft.: 2,399
Stories: —
Lot Size: 5,215 square feet
Style: Single Family Residential
Year Built: 1978
Year Renovated: 1978
County: Orange County
APN: 53012265

Home facts updated by county records on Oct 15, 2026

Around this home

Schools

Santiago Hills Elementary School

Public K-6 • Assigned • 0.6mi

10/10

Sierra Vista Middle School

Public 7-8 • Assigned • 0.2mi

9/10

Northwood High School

Public 9-12 • Assigned • 1.2mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

One of Irvine's original, gated and non-gated classic neighborhoods featuring broad, tree-lined streets, backyards, and direct connections to top-ranked Northwood High.
2 months ago • Northwood
Joseph Chow
Redfin Premier agent
285 deals
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Irvine is a Master Planned City which makes it truly unique and highly desirable. Irvine is known for its parks and open space. Popular spots include the OC Great Park and Quail Hill Trailhead. Irvine Spectrum has shopping, dining and entertainment....
1 month ago • Irvine
Michelle Fullbright
Redfin Premier agent • Principal Listing Specialist
332 deals
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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

6/10 Heat Factor

7 days above 92° expected this year, 21 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

4/10 Air Factor

3 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Irvine, CA • 92620

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 9.4 hours in June and 7 hours in December, placing it above the U.S. average for solar exposure.

9.4 hrs

7 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.61M – $1.95M

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Home values near 21 Castillo

Data from public records.

Address	Redfin Estimate
33 Castillo, Irvine, CA 4 Beds \| 2.5 Baths \| 1896 Sq. Ft.	$1,444,257
27 Castillo, Irvine, CA 5 Beds \| 3 Baths \| 3362 Sq. Ft.	$1,992,286

Address	Redfin Estimate
31 Castillo, Irvine, CA 3 Beds \| 2 Baths \| 1448 Sq. Ft.	$1,280,361
25 Castillo, Irvine, CA 4 Beds \| 3 Baths \| 2951 Sq. Ft.	$1,992,834

Address	Redfin Estimate
29 Castillo, Irvine, CA 3 Beds \| 2 Baths \| 1563 Sq. Ft.	$1,263,054
23 Castillo, Irvine, CA 4 Beds \| 2.5 Baths \| 2500 Sq. Ft.	$1,798,441

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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 92620, CA

Sale history for 21 Castillo

Tax history for 21 Castillo

Zoning

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 92620

Home values near 21 Castillo

More real estate resources