Cover - shares	6 Months Ended
	Jan. 31, 2023	Mar. 10, 2023
Cover [Abstract]
Entity Registrant Name	My City Builders, Inc.
Entity Central Index Key	0001556801
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--07-31
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	Jan. 31, 2023
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2023
Entity Common Stock Shares Outstanding		596,686
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	000-55233
Entity Incorporation State Country Code	NV
Entity Tax Identification Number	27-3816969
Entity Interactive Data Current	Yes
Entity Address City Or Town	Miami
Entity Address State Or Province	FL
Entity Address Postal Zip Code	33132
City Area Code	786
Local Phone Number	553-4006
Entity Address Address Line 1	100 Biscayne Blvd
Entity Address Address Line 2	#1611