Find Flatmates & Rooms for Rent in Castro Valley, CA

Browse 223 Flatmates searching & Rooms in Castro Valley. Sign up for free!

8
9
10
11
12

Flatmates & Tenants

Find a Flatmate
Find a Room
Rent Affordability Calculator
Free Flatmate Guides & Tools
Schools & Universities
Verify your ID

Hosts & Landlords

Post a Listing
Find a Flatmate/Tenant
Verify your ID

Legal

Terms of Service
Privacy Policy
Cancellation & Refund Policy
Cookie Policy

Support

How iROOMit Works
iROOMit Customer Help Desk
System Status
Contact

iROOMit

About
Our Purpose
Blog
FAQ
Podcast
Open Source Software
AI Content Moderation
Partner with Us

Get the free app

Region

IMPORTANT: To our valued iROOMit members, please click here before transferring any money

©2022-2025 iROOMit Technologies Inc. All rights reserved.

Stylish Oak Center townhome with backyard

Located in Bay Area, United States

We are a group of young professionals in our early 30s. We are a super mellow house and is looking for someone who can match our energy and who is considerate and cleans up after themselves.

Spacious Hayward home near Hayward BART Station

Located in Bay Area, United States

Our house is made up of distinct personalities that all value a calm and clean environment. ***No smoking.***

Wonderful Oak Center house near West Oakland BART

Located in Bay Area, United States

We’re a group of professionals from various ages looking for someone who wants a close community and open communication. We are clean but not spotless. Mostly introverts, however extroverts welcome.