# 100 S 21st street, Richmond, CA 94804 > **TL;DR:** 6bd/3ba multi-family, $930,000 ($283/sqft), built 1963, 3,288 sqft. > A/C. Est. $4,974/mo. Listed 183 days. ## Property at a Glance | Attribute | Value | |-----------|-------| | Price | $930,000 | | Price/sqft | $283 | | Bedrooms | 6 | | Bathrooms | 3 full | | Square Feet | 3,288 | | Year Built | 1963 | | Lot Size | 4,099 sqft (0.09 acres) | | Property Type | Multi-Family (Quadruplex) | | Status | Active | | Days on Market | 183 | ## Estimated Monthly Costs | Category | Amount | |----------|--------| | Principal & Interest (20% down, 30-year at 6.5%) | $4,703 | | Estimated Insurance | $271 | | **Total** | **$4,974** | ## Key Amenities - A/C ## Property Highlights - Built in 1963 - 0.09 acre lot ## Description ### Agent Description your Next Smart Move Starts Here - Live in One, Rent the Rest! this is a premium investment property Welcome to 100 21st Street, Richmond - a rare and exceptional fourplex opportunity that checks every box for savvy investors and smart owner-occupants alike! Whether you're looking to build long-term wealth, offset your mortgage with rental income, or lock in your first income-producing asset, this property delivers incredible upside in one of the Bay Area's most dynamic and rapidly appreciating markets. Featuring [4 units 2 bed/1 bath each], this well-maintained property offers four enclosed garage parking and is perfectly positioned in a commuter-friendly Richmond location with easy access to BART, I-80, the Richmond-SF Ferry, and major employment corridors throughout the East Bay. Why Investors Love It: - Strong rental demand in Richmond's growing rental market - Multiple income streams - 4 units means 4 opportunities to cash flow - Excellent cap rate potential with value-add upside - [Mention any recent upgrades, newer roof, updated systems, etc.] ?? Why Owner-Occupants Love It: - Live in one unit - let your tenants help pay your mortgage - Build equity and generate monthly income simultaneously - A smart entry point into real estate ownership without sacrificing lifestyle ?? Prime Richmond Location: Steps from parks, local dining, shopping, and just minutes to Richmond BART - connecting you to San Francisco, Oakland, and the entire Bay Area with ease. Richmond's continued revitalization and waterfront development make this the kind of investment that gets better with time. ## Location - **Address:** 100 S 21st street, Richmond, CA 94804 - **County:** Contra Costa - **Neighborhood:** Walls Harbor Ctr - **Coordinates:** 37.930534, -122.349264 - **Google Maps:** https://www.google.com/maps?q=37.930534,-122.349264 ## Listing Agent - **Name:** Frank Grimsley - **Brokerage:** Keller Williams Realty Walnut Creek - **Broker Phone:** (925) 934-2900 - **Listing URL:** [View original listing](https://www.realtor.com/realestateandhomes-detail/100-S-21st-St_Richmond_CA_94804_M12031-13516?f=listhub&s=CCAORCA&m=41133115&c=propsimple) ## Photos ![100 S 21st street - Photo 1](http://lh.rdcpix.com/b2f5b86e58e50ea62662a71130bf32fel-f2980371391r.jpg) ![100 S 21st street - Photo 2](http://lh.rdcpix.com/b2f5b86e58e50ea62662a71130bf32fel-f3248358977r.jpg) ![100 S 21st street - Photo 3](http://lh.rdcpix.com/b2f5b86e58e50ea62662a71130bf32fel-f2732389094r.jpg) ![100 S 21st street - Photo 4](http://lh.rdcpix.com/b2f5b86e58e50ea62662a71130bf32fel-f372751641r.jpg) ![100 S 21st street - Photo 5](http://lh.rdcpix.com/b2f5b86e58e50ea62662a71130bf32fel-f4223597791r.jpg) ![100 S 21st street - Photo 6](http://lh.rdcpix.com/b2f5b86e58e50ea62662a71130bf32fel-f3931142243r.jpg) ![100 S 21st street - Photo 7](http://lh.rdcpix.com/b2f5b86e58e50ea62662a71130bf32fel-f3673183804r.jpg) --- **MLS#:** 41133115 | **Updated:** 2026-10-21 **Source:** listhub *Copyright © 2026 Contra Costa Association of REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.* [View on PropertySimple](https://staging.propertysimple.ai/listing/100-s-21st-street-richmond-ca-94804-2f8ba477e7354fa083555fac49a2e245) --- ## Structured Data ```json { "@context": "https://schema.org", "@type": "RealEstateListing", "@id": "https://staging.propertysimple.ai/listing/100-s-21st-street-richmond-ca-94804-2f8ba477e7354fa083555fac49a2e245#listing", "url": "https://staging.propertysimple.ai/listing/100-s-21st-street-richmond-ca-94804-2f8ba477e7354fa083555fac49a2e245", "name": "100 S 21st street, Richmond, CA 94804", "description": "your Next Smart Move Starts Here - Live in One, Rent the Rest! this is a premium investment property Welcome to 100 21st Street, Richmond - a rare and exceptional fourplex opportunity that checks every box for savvy investors and smart owner-occupants alike! Whether you're looking to build long-term wealth, offset your mortgage with rental income, or lock in your first income-producing asset, this property delivers incredible upside in one of the Bay Area's most dynamic and rapidly appreciating markets. Featuring [4 units 2 bed/1 bath each], this well-maintained property offers four enclosed garage parking and is perfectly positioned in a commuter-friendly Richmond location with easy access to BART, I-80, the Richmond-SF Ferry, and major employment corridors throughout the East Bay. Why Investors Love It: - Strong rental demand in Richmond's growing rental market - Multiple income streams - 4 units means 4 opportunities to cash flow - Excellent cap rate potential with value-add upside - [Mention any recent upgrades, newer roof, updated systems, etc.] ?? Why Owner-Occupants Love It: - Live in one unit - let your tenants help pay your mortgage - Build equity and generate monthly income simultaneously - A smart entry point into real estate ownership without sacrificing lifestyle ?? Prime Richmond Location: Steps from parks, local dining, shopping, and just minutes to Richmond BART - connecting you to San Francisco, Oakland, and the entire Bay Area with ease. 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