28,314 Lot Size0.65 Acres
0 Harness St, Spring Valley, CA 91977
Est: $2,160/moGet pre-approved

Description

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...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.
LISTING UPDATED: 08/05/2026 11:46 PM

  1. Listed by Dennis B Rieder • DRE #02014241 • Real Broker • Preferred: 858-232-2929

Property Details for 0 Harness Street

Status
MLS #
260019164
Days on Market
5
Taxes
-
HOA Fees
-
Condo/Co-op Fees
-
Property Type
MLS Type
Lot/Land
Year Built
-
Lot Size
0.65 AC
Neighborhood
Mt Miguel Terrace
Community
SPRING VALLEY
Zoning
R1
Area Zip
SPRING VALLEY (91977)
Standard Status
Active

Location

Listing Courtesy of Real Broker, Dennis B Rieder, DRE #02014241
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Building Information for 0 Harness Street

Lot Size0.65 AC

Payment Calculator

$2,160 per month

30 year fixed, 6.55% Interest

Principal and Interest

$2,160

Property Taxes

$0

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

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Property Information for 0 Harness Street

Summary
Location and General Information
  • Coordinates: -117.01370311, 32.72119749
  • Latitude: 32.72119749
  • Longitude: -117.01370311
  • 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
  • MLS Area Major: East County
  • Water Source: N/K
  • Frontage Type: Open Space, Other/Remarks
  • Geo Quality: 1
Taxes and HOA
  • Other Fees: $0
  • CFD Mello Roos Fee: $0
  • Monthly Total Fees: $0
Property
Lot Information
  • Building Area Total: 0.0
  • Building Area Units: Sqft
  • Living Area: 0
  • Living Area Units: Sqft
  • Lot Size Area: 0.65
  • Lot Size Square Feet: 28314.0
  • Lot Size Units: Acres
  • Lot Size: .5 to 1 AC
Property and Assessments
  • Parcel Number: 578-102-14-00
  • Property Sub Type: Lots/Land
  • Property Type: Land
  • Age Restrictions: N/K
  • Year Built: 0
Farm Information
  • Irrigation Source: N/K
Utilities
  • Sewer: N/K
  • Utilities: N/K
Interior and Exterior Features
Exterior Features
  • Fencing: N/K
Interior Features
  • Bathrooms Half: 0
  • Bedrooms Count: 0
  • Baths Total: 0.0

Property History for 0 Harness Street

DateEvent & SourcePriceAppreciation
Aug 5, 2026

Listed (Active)

SDMLS #260019164

$425,000
Aug 5, 2026

Withdrawn

SDMLS #250027245

$425,000
Aug 5, 2026

Listed (Active)

CRMLS #260019164SD

$425,000
DateEvent & SourcePrice
08/05/2026

Listed (Active)

SDMLS #260019164

$425,000
08/05/2026

Withdrawn

SDMLS #250027245

$425,000
08/05/2026

Listed (Active)

CRMLS #260019164SD

$425,000

For completeness, we often displays two records for one sale: the MLS record and the public record.

Schools near 0 Harness Street

This home is within Grossmont Union High School District.
Rating
School
Type
Grades
Distance
Public - K to 5
Public - 5 to 8
Public - 9 to 12
Charter - K to 12
Rating
School
Distance
Avondale Elementary School
PublicK to 5

Mount Miguel High School
Public9 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

Similar Homes

0 Harness Street is a 0.65 ac of land for sale in Spring Valley, CA 91977. This property was listed for sale on August 5, 2026 by Real Broker, it's currently listed at $425,000. This listing's school districts are La Mesa-Spring Valley School District, Grossmont Union High School District. Nearby schools include Avondale Elementary School, Science, Technology, Engineering, Arts, And Math Academy At La Presa and Mount Miguel High School. 0 Harness Street is a 0-bed, 0-bath, 0.65 ac of land on a 28,314 sq. ft. / 0.65 acres lot.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of Real Broker, Dennis B Rieder, DRE #02014241

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