dpkg specific install location

[NoOp]

OpenOffice have now started issuing debs for their code. On occassion I
may have 2-3 versions of the same OOo version installed & typically use
these instructions:

====
Linux:

    * open new shell
    * change to the directory where all the rpm packages are. (f.e.

/temp/openoffice/rpm)

    * f.e. you want to install the office into the directory

/home/user1/office then insert

rpm -vh --install --dbpath /home/user1/office/.rpm --nodeps --prefix
/home/user1/office/ openoffice*.rpm

after the rpm installation you can start the office from the path
/home/user1/office/program/soffice When you install the office in this
way you have no systemintegration (no start menu entries and no file
association)
====

What would be the equivalent dpkg command?