Section and Volumetric Models

In section, the depository is 2800mm below ground, which ties in with the 1400mm grid. On the far left is the public building. The floor plates are small, 9.8m x 9.8m, so I propose one purpose per floor. 

Public Building (left):

Fourth Floor - Plant Room/Rainwater Recycling

Third Floor - Computer Area/Printing

Second Floor - Exhibition/Gallery

First Floor - Exhibition/Gallery

Ground floor - Reception, small shop and WCs.

Private/Staff Building (right):

Fourth Floor - Plant Room/Rainwater Recycling

Third Floor - Staff/Seminar Room

Second Floor - Digitalisation

First Floor - Workshop

Ground floor - Deliveries

The structures in between are the light wells and the ventilation towers. The larger towers are those above the underground reading rooms. 

I have shown the above ground structures on my 1:250 wooden model. I wanted to push the public building right up against the edge of the pavement, to maximise the number of people walking past it.

The building turns its back on the primary school to the south and the college to the west. However I want it to open up onto the new public space I am creating above the labyrinth:

I have shown below how people can inhabit this space. The 1.4 x 1.4 x 4.2m horizontal blocks are the same proportions as the neighbouring wind catchers; they aren't too tall to climb on. It would be interesting having the primary school using the space as a playground, and ultimately an interesting walk to work for the staff in the east building.