Harness St #0
Spring Valley, CA 91977
(on 0.65 acres)
Local Information
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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.
Home Highlights
Parking
No Info
Outdoor
No Info
HOA
None
Price/Sqft
No Info
Listed
180+ days ago
Home Details for Harness St #0
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Appliances & Utilities Utilities: N/K |
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Exterior Home Features Fencing: N/K |
Frontage Frontage Type: Open Space, Other/RemarksNot on Waterfront |
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Days on Market: 180+ |
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Property Type / Style Property Type: LandProperty Subtype: Unimproved Land |
Property Information Parcel Number: 5781021400 |
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Price List Price: $425,000 |
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MLS Status: ACTIVE |
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Direction & Address City: Spring ValleyCommunity: SPRING VALLEY |
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Listing Agent Listing ID: 250027245 |
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Association for this Listing: San Diego Association of REALTOR |
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Lot Area: 0.65 acres |
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Listing Terms: Cal Vet, Cash, Conventional, VA |
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Mls Number: 250027245Attribution Contact: Preferred: 858-295-0556Showing Service Name: None |
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Source Internet Entire Listing Display |
Last check for updates: about 3 hours ago
Listing courtesy of Mance D Rieder DRE #02050930, (858) 295-0556
Real Broker
Dennis B Rieder DRE #02014241, (858) 232-2929
Real Broker
Originating MLS: San Diego Association of REALTOR
Source: SDMLS, MLS#250027245

Also Listed on SDMLS.
Price History for Harness St #0
| Date | Price | Event | Source |
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| 05/01/2026 | $425,000 | PriceChange | SDMLS #250027245 |
| 04/28/2026 | $450,000 | Listed For Sale | SDMLS #250027245 |
| 09/12/2025 | $450,000 | ListingRemoved | SDMLS #250027245 |
| 05/12/2025 | $450,000 | Listed For Sale | SDMLS #250027245 |
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Comparable Sales for Harness St #0
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.01 | Lot/Land | $247,000 | 04/30/26 | - | - | ||
0.00 | Lot/Land | $175,000 | 04/02/26 | - | - | ||
0.23 | Lot/Land | $375,000 | 05/05/26 | - | - | ||
0.70 | Lot/Land | $120,000 | 12/09/25 | - | - | ||
0.89 | Lot/Land | $399,000 | 06/30/25 | - | - | ||
1.31 | Lot/Land | $265,000 | 06/27/25 | - | - | ||
1.30 | Lot/Land | $235,000 | 11/14/25 | - | - | ||
1.99 | Lot/Land | $220,000 | 09/08/25 | - | - |
Nearby homes
Get a sense of prices in the area by checking nearby homes.Assigned Schools
These are the assigned schools for Harness St #0.
What Locals Say about Spring Valley
At least 380 Trulia users voted on each feature.
84 % Say car is needed
79 % Say it's dog friendly
67 % Say parking is easy
66 % Say there's holiday spirit
64 % Say yards are well-kept
61 % Say there are sidewalks
53 % Say there's wildlife
52 % Say it's quiet
48 % Say kids play outside
47 % Say neighbors are friendly
42 % Say they plan to stay for at least 5 years
40 % Say it's walkable to grocery stores
38 % Say people would walk alone at night
38 % Say streets are well-lit
31 % Say it's walkable to restaurants
20 % Say there are community events
Sourced by Trulia users. Learn more about our methodology.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Mance D Rieder, Real Broker
Agent Phone: (858) 295-0556

This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property.
BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, noncommercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly
prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by San Diego MLS. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. Compilation © 2026 San Diego MLS.
Harness St #0, Spring Valley, CA 91977 is a lot/land. This property is currently available for sale and was listed by SDMLS on May 12, 2025. The MLS # for this home is MLS# 250027245.

