$425,000
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0 Harness St, Spring Valley, CA 91977

 Contact
Listing By: Dennis Rieder - Real Broker camrmls-p Realty.com

Rare double-lot development opportunity in Spring Valley APNs 578-102-14-00 and 578-102-15-00 sold together. Two contiguous parcels create a flexible canvas for builders, investors, and end-users navigating today's California housing landscape. Under current 2026 state law, the development potential is significant: build two single-family residences (up to ~3,000 sqft each), plus the potential for ADUs and Junior ADUs on each lot per California's expanded ADU statutes. SB-9 lot-split and duplex provisions may further unlock additional units, subject to County of San Diego zoning and verification.

  • MLS# 260019164SD
  • Date Listed08/05/2026
  • Days on Realty 72 Days
  • Bedrooms -
  • Bathrooms
  • Lot Size 0.65 acres (28,314 sq. ft)
  • Subdivision Spring Valley
  • County San Diego

Exterior / Lot Features

  • Roof -
  • Lot Size Acres 0.65
  • Lot Size SQFT 28,314.00
  • Lot Features -

Directions

Google 8601 Harness St, Spring Valley and lots will be across the street. At the corner of Harness St and Sweetwater Rd. CrossStreet: Ellen Street

Financial Considerations

Schools near 91977

Explore the local neighborhood highlights and top-rated schools near 91977 in Spring Valley, CA.

Nearby Schools

Source: School Digger

Avondale Elementary School

Public • PK - 6 • Serves this home

1.08 mi

Distance

Kempton Street Literacy Academy

Public • PK - 4

1.17 mi

Distance

Rancho Elementary School

Public • PK - 6

1.48 mi

Distance

Mount Vernon Elementary School

Public • PK - 8

1.48 mi

Distance

Audubon K-8 School

Public • PK - 8

2.17 mi

Distance

Lemon Grove Academy Elementary

Public • PK - 6

2.78 mi

Distance

San Altos Elementary School

Public • PK - 6

3.61 mi

Distance

Boone Elementary School

Public • PK - 5

4.09 mi

Distance

Fulton K-8

Public • PK - 8

4.13 mi

Distance

San Miguel Elementary School

Public • PK - 6

4.13 mi

Distance

La Presa Middle School

Public • 4 - 8 • Serves this home

1.03 mi

Distance

Quest Academy

Public • 6 - 8

1.03 mi

Distance

Spring Valley Academy

Public • 4 - 8

3.34 mi

Distance

Bell Middle School

Public • 6 - 8

4.09 mi

Distance

College Preparatory Middle School

Public • 5 - 8

4.34 mi

Distance

La Mesa Arts Academy

Public • 4 - 8

4.45 mi

Distance

San Diego Scpa School

Public • 6 - 12

5.39 mi

Distance

Ingenuity Charter

Public • 6 - 12

5.67 mi

Distance

Emerald Middle School

Public • 6 - 8

6.78 mi

Distance

Eje Middle Academy

Public • 6 - 8

6.78 mi

Distance

Mount Miguel High School

Public • 9 - 12 • Serves this home

1.08 mi

Distance

Monte Vista High School

Public • 9 - 12

3.72 mi

Distance

Morse High School

Public • 9 - 12

4.13 mi

Distance

Helix High School

Public • 9 - 12

4.87 mi

Distance

Heartland Coalition Youthbuild

Public • 9 - 12

5.39 mi

Distance

Grossmont High School

Public • 9 - 12

6.18 mi

Distance

Steele Canyon High School

Public • 9 - 12

6.58 mi

Distance

Diego Hills Central Public Charter

Public • 9 - 12

6.84 mi

Distance

Bonita Vista Senior High School

Public • 9 - 12

7.04 mi

Distance

Lincoln High School

Public • 9 - 12

7.27 mi

Distance

Lighthouse Christian Academy

Private • KG - 12

1.93 mi

Distance

True Faith Academy

Private • 01 - 12

2.28 mi

Distance

Heartland Christian

Private • PK - 12

2.47 mi

Distance

Fred Finch Youth Center

Private • 06 - 12

3.07 mi

Distance

Brookshire International Academy

Private • 09 - 12

4.13 mi

Distance

Tabernacle Christian Academy

Private • PK - 12

6.14 mi

Distance

San Diego Academy

Private • PK - 12

6.84 mi

Distance

Waldorf School Of San Diego

Private • PK - 12

7.27 mi

Distance

Lat Online School Inc

Private • KG - 12

7.27 mi

Distance

Beta-selam Academy

Private • 01 - 12

7.48 mi

Distance

Sales & Tax History

Source: Public Records

Local Neighborhood Highlights for 91977

Discover key demographics, population statistics, and environmental insights for the Spring Valley, CA area.

Population & Environment

Source: Sperling's Best Places

Walkability in CA / 91977

Source: Walk Score

36/100

Car-Dependent

Walk Score ®

35/100

Some Transit

Transit Score ®

24/100

Bikable

Bike Score ®

Overview

Most errands require a car. A few nearby public transportation options. Minimal bike infrastructure.

Transit Summary

5 nearby routes: 5 bus, 0 rail, 0 other

Walkability averages in the surrounding area

The average walkability score in the surrounding area is Walk Score: 38/100, Transit Score: 22/100, Bike Score: 24/100.

Property Change History

Points of Interest near 0 Harness St, Spring Valley, CA 91977

Frequently Asked Questions for 0 Harness St

Source: Realty.com

0 Harness St, Spring Valley, CA 91977 in Spring Valley, Spring Valley, CA 91977 is a land listed at $425,000. Highlights include 0.65 acre lot. Realty.com has 9 photos, sales history, school insights, and mortgage tools for this listing.

Realty.com has 9 photos of 0 Harness St.

The full address for this home is 0 Harness St, Spring Valley, CA 91977.

0 Harness St has been listed on Realty.com since Wed August 05, 2026

Most errands require a car. A few nearby public transportation options. Minimal bike infrastructure.

The average walkability score in the surrounding area is Walk Score: 38/100, Transit Score: 22/100, Bike Score: 24/100.

There are 3 schools assigned to this home. Check out the schools near 0 Harness St. Avondale Elementary School (Grades: PK - 6), La Presa Middle School (Grades: 4 - 8), Mount Miguel High School (Grades: 9 - 12)

Listing provided courtesy of: Real Broker (tel: 855-450-0442)
Listing agent: Dennis Rieder (#SAND-676399)

This content last refreshed on 2026-10-16 18:59:48. Some properties which appear for sale on this web site may subsequently have sold or may no longer be available.