Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2020	Apr. 08, 2021
Cover [Abstract]
Entity Registrant Name	BROAD STREET REALTY, INC.
Entity Central Index Key	0000764897
Document Type	10-Q
Document Period End Date	Sep. 30, 2020
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	No
Trading Symbol	N/A
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		22,624,679
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false
Entity File Number	001-09043
Entity Tax Identification Number	36-3361229
Entity Address, Address Line One	7250 Woodmont Ave
Entity Address, Address Line Two	Suite 350
Entity Address, City or Town	Bethesda
Entity Address, State or Province	MD
Entity Address, Postal Zip Code	20814
City Area Code	301
Local Phone Number	828-1200
Entity Incorporation, State or Country Code	DE
Entity Interactive Data Current	No
Document Quarterly Report	true
Document Transition Report	false
Title of 12(b) Security	None
Security Exchange Name	NONE