As of prefab-1.1.1.1.jar, the Loft starter house is made of Nether materials which can easily be recycled and bypass the nether requirement (namely: quartz blocks, slabs and stairs into nether quartz).

Please add an option to disable the loft or change it's materials.

This feature has been included in 1.1.1.2 which has been released on curse.

I will add the configuration option and make it so the loft is disabled by default.

Server side configuration will take precedence for what is shown in the GUI.

sounds good