Façades of Proposal 8


Front façade, facing West / Nishi. On the right a second bay window on the second floor is new.
The side façade facing South / Minami shows this bay window of the study.




Rear façade, East / Higashi. Sliding doors of the bedroom on the second floor open to the balcony.


Side façade, North / Kita. Windows were rearranged.

Sections of Proposal 8


Section from North to South, looking east.



Section East to West, looking North.

Plans of Proposal 8



Second floor

Bathroom layout has changed.

Bedroom and study swapped.

Toilet may need to be shifted to create room for the staircase. See posting below.




First floor

Doors between kitchen and living room are now opening doors instead of sliding doors.



Basement

Location for the exterior units of the air conditioning indicated.

Structural Concept


The basement is a concrete box. It is a rigid support of the upper floors.
The upper floors are built as a wooden house. It is a flexible structure.
The front and rear façades are made of brickwork. Their connection to the wooden structure is very important. This is were rigid and flexible meet.

Structure: load bearing walls


Second Floor
Walls are indicated that may support the roof.



First Floor




Basement
The ceiling of the basement is a concrete slab. This spreads the loads of the upper floors.

Pre crack joints


Earthquakes will stress the brickwork façades.
To avoid cracking, at least the red joints should be flexible.



Piping


Second Floor
Waste water is collected in the two pipes in the staircase. Rainwater pipes are inside the façade.


First Floor
Exhaust of the fireplace through the facade. Piping of the airconditioning split unit runs through the wall down to the exterior units under the terrace (see basement drawing).




Basement
Waste water and rainwater from the basement has to be pumped up to sewerage level.

Staircase

Scheme 1 shows a recommended staircase with 230 mm per step.
Scheme 2 showes the minimum depth of steps: 220 mm per step.













The present design offers space for the staircase of 2m x 1.25m. Steps are measured on the climbing line. This is the line where the center of the body of the person moves when climbing the stairs. The climbing line is 300 mm from the walls.
In order to optimize depth of steps space has to be found by either moving the right hand wall or reducing thickness of the façade. Detailed design of the house has to reveal which option is best.

Façades of Proposal 7



West and South façades.
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East and North façades.

Plans of Proposal 7


Roof plan


Second floor. Main bed room and study.
Walk in closet is reintroduced. Toilet is swapped with washing room.



Groundfloor

Basement. Steps down to frontdoor in same layout as first design.

Materials


The front façade will be made of brickwork. Brickwork is less commmon in Japan than in the Netherlands. Most brickwork look alike buildings in Tokyo are clad with tiles or brick strips. The real thing (picture above) can be distinguished in the details.


Especilally on corners the true thickness of the brick is revealed. A real brick has length - width - height proportions of 4:2:1. As the above image shows these bricks are merely thick tiles.
Another distinguishing detail in quality brickwork is the appearance of the joints. Real brickwork has fully mortared joints (see far above image) whereas most fake brickwork lacks sealing of the joints. The above image only has sealing left under the top ledge.
The color of the sealing mortar has a major influence on the appearance of the façade. A light mortar will fade the color of the brick. A dark mortar (or none) will create a starker color.


The basement of the house will have a 'solidity' outlook. For this we could use natural stone.
A cost saving alternative is fair face concrete.



The garage shutter shall have a color that matches the basement façade.



Example of a wooden bay window.


Corner detail of standard Japanese façade planking.
To be used for the south and north façade.

Roof will be covered with standard Japanese shingles.


The bay on the east side of the house will have the image of stacked limestone blocks. In Holland this is made with plasterwork with sculptured joints. For this project we could use panels which give the same image.

Studies on 2F, option 5 and 6


Looking for options for a study and two bedrooms in the second floor.


Solution by splitting the bathroom in two sections, combinations with the toilet.
Major change by bringing the laundry balcony to the south side. These changes are combined with an extension of the footprint by 60 cm in east-west direction. Thus we can create more storage room and have e more fluent plan.

Façades of Proposal 4


Proposal 4 for the façades is mainly a study on cost saving
by means of reducing the number of windows.










Plans and Sections of Proposal 4


Second Floor

First Floor


Basement



Sections showing the access to the basement garage and the light well in the staircase.