By January 2014, BNY Mellon was looking to sell its headquarters, as it was moving to a location with less space. In May 2014, BNY Mellon sold the building to a joint venture led by Harry B. Macklowe's Macklowe Properties for $585 million, though BNY Mellon continued to occupy the building until September 2015. Macklowe added up to of retail space at the base. He initially planned to make 1 Wall Street a mixed-use residential and office building, but in early 2017, changed these plans so that it would be almost entirely residential condominiums, since an all-residential building would require less debt. Macklowe Properties partnered with former Prime Minister of Qatar Hamad bin Jassim bin Jaber Al Thani in a bid to convert the office property into 566 condos with retail at the base. The renovation was originally supposed to be undertaken by Robert A.M. Stern Architects, though it was replaced by the firm SLCE Architects. Deutsche Bank provided $750 million in debt for the conversion.