NCC Building Classes

Question 1

Class 1a

Answer 1

Single dwelling (detached
house; or one of a group of attached dwellings).

Question 2

Class 1b

Answer 2

• Small Boarding / Guest house
• not exceeding 300 m2
• more than 12 persons

or

• 4 or more single dwellings located on one allotment and used for short-term holiday accommodation

Question 3

Sole Occupancy Unit (SOU)

Answer 3

Space with an
exclusive use in a building.

• Apartments
• Self Contained Unit
• Shop

Question 4

Class 3

Answer 4

Hotels/Motels

Common place of long term or transient living for a number of people.

Any residential building that is not Class 1, 2 or 4

Question 5

Class 4

Answer 5

A sole dwelling within a non-residential building.

Example: caretaker’s residence in a storage facility

Question 6

Class 5

Answer 6

Office

Question 7

Class 6

Answer 7

Retail Shops

inc. restaurants, barbers, shops, etc…

Question 8

Class 7a

Answer 8

Carparks

Question 9

Class 7b

Answer 9

Storage or Display Warehouses

Question 10

Class 8

Answer 10

Factory, Workshop or Laboratory

Question 11

Class 9a

Answer 11

Hospitals (where treatment involve patients becoming unconscious or unable to move)

Question 12

Class 9b

Answer 12

Buildings for Assembly

Schools
Universities
Childcare
Sporting Facilities
Night Club
Public Transport
Church

Question 13

Class 9c

Answer 13

Residential Care

Question 14

Class 10a

Answer 14

Non-habitable buildings

Private garage
Carport
Sheds

Question 15

Class 10b

Answer 15

‘Structure’

Fence, retaining wall, swimming pool, etc…

Question 16

Class 10c

Answer 16

Private Bushfire Shelter

Question 17

What is the only thing a Class 1 building can be on top of?

Answer 17

Private garage (class 10a)

Question 18

What class is a GP’s office?

Answer 18

Class 5 generally or Class 9a if medical treatment takes place that leaves patients unconscious or unable to walk.

Question 19

What class is a service station?

Answer 19

Class 6 if it is for the sale of fuel & goods.

Class 8 if it provides car servicing.

Question 20

When can a portion of a building with a different purpose adopt the classification of another part of the building?

Answer 20

When it is no more than 10% of storey it is on (subject to some limitations)

ie. office within warehouse

Question 21

Which building classes are in Volume Two of the NCC? (generally)

Answer 21

Class 1 and Class 10 buildings

Question 22

Which building classes are in Volume One of the NCC? (generally)

Answer 22

Class 2 - 9 Buildings

Question 23

Class 2

Answer 23

Apartment Building

• SOUs on top of each other

Or

• Dwellings on top of Shared Space

Question 24

Mixed Used Building Requirements

Answer 24

1). Specific requirements of each relevant class
2). Most stringent requirements of each relevant class

Question 25

What sections are in Vol 01

Answer 25

Section A – Governing Requirements Section B – Structure Section C – Fire resistance Section D – Access and egress Section E – Services and equipment Section F – Health and amenity Section G – Ancillary provisions Section I – Special use buildings Section J – Energy efficiency Schedules—