Yes, you will claim this rental cost as "rental expense" on your schedule C which is where you will be reporting all of your business income and expenses.
In TurboTax Self-Employed (for TurboTax
Online sign-in, click Here , then select "Take Me to My Return") (or Desktop TurboTax Home and Business), report it under "Business"> "Business income and expenses" > "I'll choose what I work on" > Business income and expenses. Then enter all your business information. You will come to a screen that has "Business Expenses", enter the rental space costs under "Other Common Business Expenses" - Rental expense (See attached screenshots)
For more information about business expenses, you can use this helpful TurboTax link:
https://turbotax.intuit.com/tax-tools/tax-tips/Self-Employment-Taxes/Reporting-Self-Employment-Busin...
