Introduction to BDD-IPrepared by: Prof. Afroz Khan

Process of Planning• Understand the type of building (i.e. Residential/Public).• Calculate plot area, built up area and FSI.• Identify aspect of each room and decide its location (i.e. on GF or FF).• Decide sizes of various rooms according to area requirement (±1 meter

square allowed).• Arrange the rooms according to their location and sizes.• Decide the location of various general units such as toilet, bathrooms,

staircase according to building.• Provide door and windows as per standard sizes.• Calculate the built up area on each floors.

Sizes of Drawing Sheet (IS 962:1989)A0 841x1189

A1 594x841

A2 420x594

A3 297x420

A4 210x297

All dimensions are in “mm”

Scales (IS 1073:1983)

Enlargement Scales 1:10 1:20 1:50

Full Sizes 1:100

Reduction Sizes 1:150 to 1:500 1:200 to 1:600 1:400 to 1:1000

Lettering: IS 9609 (Part I): 1983

Title of Drawing 6, 8 mm

Sub-Title, Headings 3, 4, 5 or 6 mm

Notes, Schedule, Material list etc 3, 4, 5 or 6 mm

Alteration, entries and tolerances etc 3, 4, 5 or 6 mm

Types of Working DrawingDeveloped plan or Floor plan 1:100

Elevations 1:100

Longitudinal or Cross sections 1:100 or 1:50

Roof plan 1:100

Foundation plan 1:100

Location plan 1:500

Site plan 1:500 to 1:4000

Components of Drawing Sheets

1. Margin2. North Line3. Construction Notes -8mm4. Schedule of Openings -5mm5. Scales (All Dimensions are in mm) -5mm6. Title of Drawing -10mm