The walls

Laterate bricks[ vettukallu] was used for all the 20 cm walls. For 10 cm walls [interior- seperation between kitchen and work area, toilet and store room] we used cement bricks. For septic tank also 6 in cement bricks were used.Just above the joinery height, there's the lintel concrete, which varies in thickness with the nature of the joinery under, and the span etc, all according to Krishnakumar sir's drawing[ Associated Structural consultants, Kochi]. In some places it's 30 cm thick. In others, mostly 15cm. Over the lintel, 3-4 layers of bricks[20cm laterate bricks] were used, to reach the main slab level.