OFF MARKET
Google street view image for 21555 Running Branch Rd, Diamond Bar, CA 91765
Off Market Oct 1988 for $345K
$1,240,236
Est. refi paymentEst. refi $2,175/mo
3
bd
•
3 ba
•
2,380
sq ft

21555 Running Branch Rd, Diamond Bar, CA 91765

map-entry

About this home

21555 Running Branch Rd is a 2,380 square foot house on a 7,466 square foot lot with 3 bedrooms and 3 bathrooms. - it last sold on October 24, 1988 for $345,000. Based on Redfin's Diamond Bar data, we estimate the home's value is $1,240,236.
Single-familyProperty Type
1979Year Built
7,466 sq ftLot Size
$521Est. Price/Sq.Ft.
3 car garageParking
Source:Public Records

Redfin Estimate

$1,240,236
$895K since sold in October 1988$4,000 since August

This home's estimate is 10.8% lower than the average sale price ($1.39M) of 5 comparable homes.

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Earn from this home

Sell
$1,171,966
Est. take-home

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Refinance
$0
Est. cash available

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Rent
$3,607/mo
Redfin rental estimate

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Market trends in 91765, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price
99.1%

0.2% MoM

Median sale price
$1.1M

$48K MoM

Avg. days on market
42d

0 days MoM

Recently sold homes
108

17 MoM

New listings for sale

Provided by Redfin

Sale history for 21555 Running Branch Rd

Tax history for 21555 Running Branch Rd

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

Zoning

RL

Low Density Residential District

The RL zoning district is intended primarily for parcels developed with existing detached single-family dwellings. The maximum allowed density for new residential subdivisions within this zoning district will be three dwellings per gross acre. The RL zoning district is consistent with the low density residential land use category of the general plan.
Permitted uses

Include but are not limited to:

  • Livestock production
  • Housing-Single unit
  • Housing-Senior
  • Housing-Other
  • Infrastructure
  • Fire house
  • Police station
  • Park & open space

Property details

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.6mi

10/10
South Pointe Middle School

Public 6-8 • Assigned • 1.9mi

10/10
Diamond Bar High School

Public 9-12 • Assigned • 1.1mi

10/10
Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

5/10 Fire Factor

6% chance of being in a wildfire in next 30 years

5/10 Heat Factor

6 days above 98° expected this year, 16 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

6/10 Air Factor

10 unhealthy days expected this year, 13 days in 30 years

Provided by First Street

Historical weather

Diamond Bar, CA • 91765
Average low and high temperatures (°F)
68
50
71
52
73
53
72
53
76
57
81
60
83
61
89
65
86
64
80
59
71
52
69
51
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sun exposure

In this area, properties receive around 9.5 hours in June and 6.9 hours in December, placing it above the U.S. average for solar exposure.

9.5 hrs
6.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.18M – $1.43M

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New Century Realtors

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Home values near 21555 Running Branch Rd

Data from public records.
This data may not show owner updates. Learn more.

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