Document And Entity Information (USD $)	12 Months Ended
	Feb. 28, 2015	May 14, 2015	Aug. 31, 2014
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Feb. 28, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Trading Symbol	TPHS
Entity Common Stock, Shares Outstanding		20,121,619
Entity Registrant Name	Trinity Place Holdings Inc.
Entity Central Index Key	0000724742
Current Fiscal Year End Date	--02-28
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 97,710,000