His official Building which was built with only slab stones,the whole building including every storey,column house beam and so on is fastened with out any nails and rivets but only with tenons.

• 整个官寨用片石砌成，石灰加糯米汤沟缝。回廊木柱和每层楼板、梁、坊等，皆用榫头牵连，不用一钉一铆。