Westside Rentals

What Westside Rentals does

Westside Rentals is a Southern California-focused online rental listing marketplace that connects prospective renters with landlords and property managers. Founded in 1996 and headquartered in Santa Monica, California, the company operates a self-serve consumer platform (westsiderentals.com) where renters can search apartments, houses, condos, and townhomes across Los Angeles, Orange, San Diego, Ventura, Riverside counties and Santa Barbara, filtered by city, zip code, bedrooms, price, and amenities. The website surfaces tens of thousands of aggregated listings per market — approximately 24,791 in Los Angeles and 10,660 in San Diego, plus coverage in Riverside, Long Beach, Glendale, Oceanside, Pasadena, and Downey — and pairs listings with extensive neighborhood guide content for markets such as Santa Monica, Downtown LA, Hollywood, Long Beach, and Pacific Beach.

The core technology is a regional web-based rental listing platform with search, filtering, and mapping functionality, supplemented by an integrated property management tools suite (free listings, Apartments.com paid advertising, 100% online digital lease signing, and rent payment processing) and a customer portal powered by Apartments.com for accounts, applications, and rent management. Distribution relies on organic search, content marketing through neighborhood guides, and cross-promotion within the CoStar Group rental brand network.

Westside Rentals is a wholly-owned subsidiary of CoStar Group (NASDAQ: CSGP), a publicly traded diversified real estate information and analytics company. The business runs on a freemium/listing-fee model: renters browse and contact listings for free, while property managers and landlords can list properties free with the option to upgrade to paid advertising via the Apartments.com marketing platform. The company reports 51-100 employees and was founded by Mark Verge, with Randy Wecker serving as COO. Revenue is not separately disclosed.

Name

Westside Rentals

Legal name

Westside Rentals

Website

https://westsiderentals.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

51–100 employees

Short description

Westside Rentals is a Southern California rental listing marketplace founded in 1996, wholly owned by CoStar Group, connecting individual renters with landlords and property managers across Los Angeles, Orange, San Diego, Ventura, and Riverside counties via a free self-serve search platform and paid Apartments.com advertising.

Ownership category

akta.pro rank

Headquarters

HQ city

Santa Monica

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Digital Commerce or Content

Revenue model

1. Property Listing Fees: Property managers and landlords pay to list rental properties on the platform. The site mentions free property listing options and paid advertising through Apartments.com integration.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Westside Rentals operates an online rental marketplace that connects property managers and landlords with prospective renters across Southern California, from Santa Barbara to San Diego. The platform allows renters to search apartments, houses, condos, and townhomes by city, address, or zip code with filters for bedrooms, price, and amenities. Property managers and landlords can list rentals for free and gain access to paid advertising via the Apartments.com network, along with integrated digital leasing and rent payment tools.

Product overview

Westside Rentals operates a rental listing search platform for Southern California, offering a unified website where renters can search apartments, houses, condos, and townhomes across multiple counties (Los Angeles, Orange, San Diego, Ventura, Riverside). The core product is the WestsideRentals.com search platform, which connects prospective renters with available properties. This platform is supplemented by a property management tools suite (free listing, advertising, and online leasing) and a customer portal, all powered through the parent company Apartments.com/CoStar Group infrastructure.

Differentiator

Problem solved

Functional benefit

Segments2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Four partnerships are on record, tiered core and minor.

• CoStar GroupcoreOthersWestside Rentals is owned and operated by CoStar Group, a leading provider of commercial real estate information and analytics. The platform is integrated with CoStar's broader portfolio including Apartments.com and other rental listing brands.
• Apartments.comcoreChannel Partner/ Reseller/ DistributorWestside Rentals listings are syndicated to Apartments.com, providing property managers access to the Apartments.com advertising platform and reaching millions of additional prospective renters through the network.
• ForRent.comminorChannel Partner/ Reseller/ DistributorPart of the CoStar rental brand network offering additional distribution channels for property listings.
• CorporateHousing.comminorChannel Partner/ Reseller/ DistributorExtended network for corporate housing listings as part of the CoStar Group rental brand ecosystem.

Scale indicators8 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Zumper: Zumper is a national online rental marketplace with strong coverage in major metros including Los Angeles and San Diego. It directly competes with Westside Rentals for the same SoCal renter audience and landlord subscription/advertising spend.
• Zillow: Zillow operates the largest U.S. residential rental marketplace alongside its owned-and-operated home listing business. It is the dominant national competitor to Westside Rentals for both renter demand and landlord/manager advertising spend, and it owns HotPads and Trulia as rental-focused sub-brands.
• PadMapper: PadMapper is a map-centric apartment and rental listing aggregator covering major U.S. cities including Los Angeles. It is comparable to Westside Rentals as a regional/metro rental search destination targeting the same SoCal renter base.
• HotPads: HotPads is a map-based apartment and rental search platform owned by Zillow. It competes head-on with Westside Rentals for SoCal renters who shop by map and neighborhood — the same top-of-funnel SEO audience Westside monetizes.
• Rentable: Rentable is an online apartment search platform that aggregates rental listings and offers landlord listing tools. It is a direct marketplace competitor to Westside Rentals for renter traffic and landlord subscriptions in shared U.S. metro markets.
• Dwellsy: Dwellsy is a no-fee apartment listing marketplace aggregating large numbers of landlord-direct listings. It competes with Westside Rentals for SoCal renter demand and for landlord-side listing supply and paid upgrades.
• Apartment List: Apartment List is a national rental marketplace that connects renters with apartments and provides advertising and lead-generation tools to property managers. It competes directly with Westside Rentals for SoCal renter mindshare and landlord budgets.
• Trulia: Trulia is a Zillow-owned residential real estate marketplace with a rentals vertical. It is comparable to Westside Rentals in offering a search experience that mixes rentals with neighborhood and home-buying content across major metros like those in SoCal.

Broad incumbents

• Redfin: Redfin is a large national residential brokerage and portal that includes a rentals search vertical. It is comparable to Westside Rentals as a destination for SoCal renters but operates at much broader scale across both rentals and home sales.
• Realtor.com: Realtor.com is a national residential real estate portal operated by Move/Realtor.com with a rentals vertical. It is comparable to Westside Rentals as a SoCal renter destination while serving a much wider brokerage-driven audience.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/westsiderentals
• Xx.com/wsrentals
• LinkedInlinkedin.com/company/westside-rentals

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Westside Rentals