There was an advert in the Northern Whig - Saturday 18 April 1885 for Ardenlee House. Ardenlee House featured in The Belfast Directory for 1887. Ardenlee Avenue featured in the 1895 Belfast And Province Of Ulster Directory. It is likely the Ardenlee street names are named for Ardenlee House. This was a common practice throughout Belfast.
"That the application of the Martin Estates Co. Ltd. to name a street in continuation of Ardenlee Avenue Ardenlee Avenue be declined, as it is not of sufficient width to be termed Avenue, but that they be informed if they will submit an application from the owners of property in the portion already named to change the name to Ardenlee Road the Committee will favourably consider a proposal to name the entire thoroughfare Ardenlee Road". (21st June 1899).
"Letter read dated 11th Inst. from Messrs H. J. Martin & Co. stating that they had obtained the consent of all the owners of property, except one, to the proposed change of name of Ardanlee Avenue to Ardanlee Road, and the Surveyor was instructed to see the remaining owner and report". (16th August 1899).
"Moved by Councillor Macartney Seconded by Alderman Wilson & Resolved That the resolution passed at last meeting recommending the Council to change the name of Ardenlee Avenue to Ardenlee Road be rescinded". (18th September 1900).
"That the Martin Estate Co. be informed in reply to their application of 8th inst. that the Committee cannot see their way to consent to a new street off Ardenlee Avenue being named Clyde Road and request that they will submit another name therefor". (15th November 1910).
"That the application of Messrs The Martin Estates Ltds to have a new street, 40 feet in width, situate off Ardenlee Avenue, named Ardenlee Road be declined". ( 29th July 1913).