| Document and Entity Information | Nov. 05, 2024 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001893262 |
| Document Type | 8-K |
| Document Period End Date | Nov. 05, 2024 |
| Entity Registrant Name | J.P. Morgan Real Estate Income Trust, Inc. |
| Entity Incorporation State Country Code | MD |
| Entity File Number | 333-265588 |
| Entity Tax Identification Number | 87-3439916 |
| Entity Address, Address Line One | 277 Park Avenue |
| Entity Address, Address Line Two | 9th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10172 |
| City Area Code | 212 |
| Local Phone Number | 270-6000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | true |
