Preliminary estimation methods

How to check this project is feasibility or not? In a beginning of a project what are questions can ask by consultant to client???????????

1.Investment
2.Duration
3.Quality
4.Scale(100 bedroom)

1st Stage - We don't have any details or drawings single rate methods.

1. Unite method
2. Cube (Volume of the building - cost/m3)
3. Superficial area method
4. Story enclosure method

1.Unit method
This method to we can check (not exactly) whether this project possible or not?
Eg- Hotel - per car space (pricing) - quality - market price
- School - per desk
- Hospital - per bed

This method used very early stage.
Less accurate.

Unit method effecting things
*Location
*Site condition
*Market condition
*Not recent(so we need to adjust for the present inflation)

2nd Stage - We have out line about the project but not in details.

Schematic design
Design process
Inception (idea)
Schematic design (just a out line)

2.Cube (Volume of the building - cost/m3)
Disadvantage.
*We are not consider internal part
Eg - No of floor -

3.Superficial area method
Total cost = Area of total floor * cost/m2
Internal face external wall area

Advantage
We measured internal area
Eg- Lament cost also we can calculate easy.

4.Story enclosure method
Area * weight

Floor area (internal area)
Stranded weight factor

G.floor =2
Basement =4
2nd basement =4

1st floor =2.15
2nd floor =2.30
3rd floor =2.45

Wall area
Stranded weighting factor
Basement area =2
2nd Basement are =3

Above ground =1
Roof area =1