$425,000
Original price: $450,000
Harness St #0, Spring Valley, CA 91977
Est. Mortgage $2,672/mo*
Get Pre-QualifiedHome Highlights
Lot/Land
0.65 acre lot
Local Information
-- mins to
About this House
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.
Last check for updates: about 21 hours ago
Listing courtesy of Dennis B Rieder DRE #02014241, (858) 232-2929
Real Broker
Originating MLS: SDMLS
Source: SDMLS, MLS#260019164

Also Listed on SDMLS.
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: 35 |
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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: 260019164 |
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Association for this Listing: SDMLS |
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Lot Area: 0.65 acres |
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Listing Terms: Cal Vet, Cash, Conventional, FHA, VA |
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Mls Number: 260019164Attribution Contact: Preferred: 858-232-2929Showing Service Name: None |
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Source Internet Entire Listing Display |
Around this home
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.
Market trends in Spring Valley
Last updated July 2026
Avg. sale price
$770K
$6.67KMoM
Sale-to-List Price
100.4%
0.4%MoM
Price per sq ft
$489
$1MoM
Available listings
111
3MoM
Home Value
Learn more about this home's value by checking out the value of nearby homes and how much similar homes have sold for.
Comparable sales
These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.62 | Lot/Land | $254,000 | 08/26/26 | - | - | ||
1.04 | Lot/Land | $247,000 | 04/30/26 | - | - | ||
0.96 | Lot/Land | $375,000 | 05/05/26 | - | - | ||
1.03 | Lot/Land | $175,000 | 04/02/26 | - | - | ||
1.51 | Lot/Land | $10,000 | 07/08/26 | - | - | ||
1.52 | Lot/Land | $120,000 | 12/09/25 | - | - | ||
1.61 | Lot/Land | $250,000 | 06/01/26 | - | - | ||
2.04 | Lot/Land | $338,000 | 12/23/25 | - | - | ||
2.22 | Lot/Land | $165,000 | 02/06/26 | - | - |
Nearby home prices
Get a sense of expected prices in the area by checking the value of nearby homes.Address | Distance | Price | Bed | Bath | Sqft | Status |
|---|---|---|---|---|---|---|
0.08 | $169,999 | 2 | 2 | 1,022 | For Sale | |
0.06 | $763,800 | 3 | 2 | 1,032 | Off Market | |
0.06 | $857,900 | 4 | 2 | 1,881 | Off Market | |
0.08 | $659,700 | 3 | 3 | 1,032 | Off Market | |
0.11 | $832,700 | 4 | 2 | 1,568 | Off Market | |
0.09 | $881,400 | 3 | 2 | 1,700 | Off Market | |
0.10 | $890,000 | 4 | 3 | 1,854 | Recently Sold | |
0.11 | $327,900 | 3 | 2 | 1,512 | Off Market | |
0.12 | $157,500 | 2 | 2 | 1,200 | Recently Sold | |
0.12 | $288,300 | 3 | 2 | 1,620 | Off Market | |
0.13 | $615,000 | 3 | 2 | 1,160 | Recently Sold |
Price and Tax history
| Date | Event | Price |
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May 1, 2026 Source: SDMLS #250027245 | PriceChange | $425,000 Price decreased by 6% |
Apr 28, 2026 Source: SDMLS #250027245 | Listed For Sale | $450,000 |
Sep 12, 2025 Source: SDMLS #250027245 | ListingRemoved | $450,000 |
May 12, 2025 Source: SDMLS #250027245 | Listed For Sale | $450,000 |
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Dennis B Rieder, Real Broker
Agent Phone: (858) 232-2929

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.
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Frequently asked questions about Harness St #0
- How big is Harness St #0?Harness St #0 in Spring Valley, CA is about 0.65 acres (28,314 sq ft).
- What is the price per acre for Harness St #0?Harness St #0 in Spring Valley, CA is listed at $425,000, or about $655K per acre.
- What do residents say about Spring Valley?Residents describe Spring Valley, CA as dog-friendly, easy to park in, and well-kept. Most residents say you need a car. See homes for sale in Spring Valley, CA.
- What are the closest schools to Harness St #0?The closest schools to Harness St #0 in Spring Valley, CA are Avondale Elementary School (rated 4/10), Mount Miguel High School (rated 4/10), Science, Technology, Engineering, Arts, And Math Academy At La Presa (Elementary/Middle, rated 6/10).
Harness St #0, Spring Valley, CA 91977 is a lot/land. This property is currently available for sale and was listed by SDMLS on Aug 5, 2026. The MLS # for this home is MLS# 260019164.

