A special, low cost construction, located under the ground

The speaker gives an explanation regarding contemporary experimental design for housing. To begin with, he stated that the most noticeable one about this construction was that it made by the professional person, but he was not an architect. The others thing that make this building special was that it constructed under the ground and the cost was low. Moreover, the present -ant recommended this house for all of societies because the light was utilized by a lot of mirrors and windows in this building. And also this settlement can provide light from the sun to generate electricity, saving much money for the occupants.

Hello,

... about this construction was that it made (that it was made ) by the professional person, ...
The others thing that make (made ) this building special was that it constructed (that it was constructed ) under the ground and the cost was low ( underground and low cost ). Moreover, the present -ant ??? recommended this house ...

And also this settlement can (could ) provide light from ...

Gluck ^^~