| Key | Value |
| addr:city | Milwaukee |
| addr:housenumber | 640 |
| addr:postcode | 53203 |
| addr:state | WI |
| addr:street | North Vel R. Phillips Avenue |
| building | retail |
| building:architect | Frank W. Bugbee |
| building:architect:1895 | Frank W. Bugbee |
| building:architect:1911 | Henry C. Koch & Company |
| building:architect:1920 | William Reichert |
| building:architect:2003 | Eppstein Uhen Architects |
| building:levels | 9 |
| building:material | brick |
| building:use | commercial; retail; apartments |
| contact:website | https://www.hub640.com/ |
| historic | building |
| name:1895 | Plankinton Block / Julius Simon, Dry Goods |
| name:1900-2018 | Boston Store |
| name:2018 | HUB640 |
| name:historic | Plankinton Block / Julius Simon, Dry Goods |
| source | https://www.wisconsinhistory.org/Records/Property/HI41857; http://assessments.milwaukee.gov/remast.asp?taxkey=3970423000 |
| start_date | 1895 |