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Harness St
For Sale $425,000
$425,000
- Unknown Bedrooms
- Unknown Bathrooms
- Unknown Sq Ft
- 28,314 Sq Ft
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 provisions may further unlock additional units, subject to County of San Diego zoning and verification.
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Amenities
Garage
Pool
Garden
Security System
Internet
Telephone
Heating
Fireplace
Balcony & Patio
TV / Cable
Laundry
Hardwood Floors
Spa
Air Conditioning
Solar Power
Floor Plan
Great Views
Natural Light
Quiet
Water View
Elevator
Guest Unit(s)
Furnished
220 Volt
Property Details
| List Price | $425,000 |
| Property Type | Lots/Land |
| Usable Sqft | Unknown |
| Number of Stories | 0 stories |
| Parking Spots | 0 spots |
| Year Built | 0 |
| Last Sold | Unknown |
| Sold Price | Unknown |
| HOA Fees: | $0 |
| Association Name: | Unknown |
| Association Amenities: | Unknown |
| APN # | 5781021400 |
| MLS # | 250027245SD |
| Property ID | 321792098 |
| Lot Sqft | 28,314 |
| Zoning | R-1 |
| Days on Market | 361 |
| Original List Price | $450,000 |
| Date Updated | May 01, 2026 |
| Date Created | May 12, 2025 |
Listing Provided By
Mance Rieder an agent of Real Broker. Lic #02050930
© 2026 CRMLS. All rights reserved. Some listings on this website are from CRMLS as of May 01, 2026 The information being provided is for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Robert Crawford
REAL ESTATE AGENT