China Building Code
Chapter one General
Item 101. This building code is to guarantee
the quality of residential buildings design and basically
make it suitable, safety, clear and economical.
Item 102. This building code is suitable for
new-built, rebuilt and expanded residential buildings with thirty
stories or less.
Item 103. Countrys corresponding policies
and national or local index of residential buildings apartment
area should limit residential building design.
Item 104. Residential building design should
fit for the requirements of city planning and residential area planning.
It should keep harmony with surroundings.
Item 105. Residential building design should
mainly consider the recent use and can consider something for the
future if possible.
Item 106. The classification of residential
buildings stories should fit for the followings:
Middle high 7-9
Item 107. Except for this building code, residential
building design should also be limited by Chinas current policies
Chapter two Indoor design
Section one model design
Item 211. Use basic models to design residential
buildings. An apartment should be only for one family and have the
bedroom, kitchen, bathroom and store space.
Item 212. The residential building models are
classified as small, middle, large ones. Each one has a lower-limit
apartment index. 18m2 is for small ones. 30m2 is for middle ones
and 45m2 for large ones.
Section two. Bedroom, living room and corridor
Item 221. it is better not to connect each bedroom
in one apartment. The bedroom area index is: bedrooms for double
persons, 9m2; bedrooms for single person, 5m2. If the bedroom also
acts as living room, it should be larger than 12m2.
Item 222. Bedrooms should have daylighting
and natural ventilation. When the bedroom is lighted through corridor,
it should have good ventilation, safety and privacy.
Item 223. Living rooms should have daylighting
and natural ventilation. Its area may not be smaller than 10m2.
Item 224. Corridors could have indirect lighting.
Its area may not be smaller than 5m2.
Section three. Kitchen
Item 231. The kitchens area should fit
for the followings:
If the fuel is pipe gas or liquefied petroleum
gas, kitchens area should be larger than 3.5 m2.
If the fuel is improved coal, kitchens
area should be larger than 4 m2.
If the fuel is raw coal, kitchens area
should be larger than 4.5 m2.
If the fuel is firewood, kitchens area
should be larger than 5.5 m2.
Item 232. Kitchens should have cooking range,
washing pool, chopping board place and fixed built-in closet. If
not, there should have enough space for these things.
Item 233. If all equipment is put one side,
the clear width of the kitchen should be more than 1.4m. If on both
side, the corresponding value should be larger than 1.7m.
Item 234. The kitchen having a small area and
poor ventilation much use electricity or pipe gas and set up mechanical
smoke exhaust equipment. The cooking range should have fire fight
measures and its depth must larger than 0.5m.
Item 235. Kitchens should have outfacing or
Item 236. For the kitchen using firewood or
processed coal as fuels, smoke windows and chimney should be set
up to avoid smoke to return and mix up.
Item 237. The kitchen should have a pre-exhaust
position in the upper part of the cooking range. Kitchens in cold
areas should have ventilating duct or other ventilating measures.
Section 4. Bathroom and Toilet
Item 241. Each apartment should have bathroom.
The low-limit area indexes for bathrooms or toilets are as followings:
Bathroom with a outside-opened door, 1.8m2
Bathroom with a inside-opened door, 2.0m2
Toilet with a outside-opened door, 1.1m2
Toilet with a inside-opened door, 1.3m2
Item 242. When the washer is put into bathroom,
the area should be increased correspondingly while water supply,
drain instruments and three-foot plug-ins should be set up as well.
Item 243. It would be better not to put the
bathroom or toilet on the bedroom, living room and kitchen. If it
is necessary to do that, the drainpipe and the water saver can not
be naked indoors. Also it should have assured measures for waterproof,
sound-insulation and easy to repair.
Item. 244. The bathroom and toilet without ventilating
windows much have ventilating duct. The air inlet and exhaust should
be well designed.
Section 5. Area computation
Item 251. Residential building designers should
compute the average apartment area and used area factor. They should
be computed as followings:
- The average apartment area = total building
area(m2)/ number of apartments
- Used area factor = total used area (m2)
/ total building area (m2)
Item 252. The used area should be computed in
the following way:
- The used area indoors includes bedroom,
living room, transition, corridor, kitchen, bathroom, toilet,
store space and closet.
- For the apartment that has more than one
story, all the areas of its indoor stairs should be added into
the used area.
- The chimney, ventilating duct and pipe
that are not included in the construction area should be included
in the used area.
- The thickness of walls decoration
should be included in the used area.
Section 6. Story height and clear height
Item 261. The residential buildings story
height should equal to or less than 2.80m.
Item 262. The clear heights for bedroom and
living room should not less than 2.4m. the clear height for some
specific area should not less than 2m.
Item 263. If the bedroom has a slope roof, the
clear height for half of this bedroom cannot less than 2.1m. It
is better for the rest space to have a lowest clear height larger
Item 264. Kitchens clear height can not
be lower than 2.2m. Bathroom, toilet and store spaces clear
height can not be lower than 2m.
Item 265. For the squat-type toilet or bathroom,
The distance from the position where person squats to the upper
water-saver can not be less than 1.9m.
Section 7. Balcony
Item 272. The design for balcony railing should
prevent the children from climbing. The clearance among the vertical
rods of the railing should not be more than 0.11 m. At the sector
for setting the flowerpot, the measures to prevent dropping should
Item 273. For the low rise (1-3 stories) and
multi-rise (4-6 stories) buildings, the height of the balcony railing
should not be less than 1.05 m; for the mid-high rise (7-9), high
rise (10-30) buildings, and the buildings in the cold area, the
balcony might use the board.
Item 274. When the balcony is set for the mid-high
rise or high rise buildings, or when the balcony is set above the
entrance and exit, the drainage should be organized.
Item 275. The equipment for drying clothes should
be installed. For the balcony at the top floor, the rain cover should
be installed. When the balcony connects the units, the dividing
board should be installed.
Section 8. Corridor, store space and indoor
Item 281. It is better that the clear width
of the corridor to bedroom or living room is larger than 1m, the
corresponding value to auxiliary rooms is larger than 0.8m. The
size of turning corridor should be suitable for moving furniture.
Item 282. Each apartment should have store space.
The clear height of hung closet can not be less than 0.35m. It is
better that the clear depth of the closet is larger than 0.45m.
For closets near to out wall, bathroom or toilet, the measures of
moisture-proof and condensation-proof should be used inside.
Item 283. The stair clear width for indoor stairs
can not be less than 0.75m when one side of the stairs is empty,
can not be less than 0.9m when walls are on both sides.
Item 284. Indoor stairs forward width
can not be less than 0.33m. Its height can not be less than 0.20m.
The clear width of fan-shape stairs at 0.25m from inside can not
be less than 0.22m.
Section 9. Door and Window
Item 291. The protection measures should be
used for the outside window when the distance from windowsill surface
to the floor is less than 0.8m, except for the room has balcony.
Item 292. It is better that protection measures
are used for the outside windows of first floor, balcony windows,
corridor-facing windows when their height are less than 2m.
Item 293. Corridor-facing windows should avoid
visual disturbance. Open-to-corridor windows can not impede transportation.
Item 294. Doors should be inside opened. It
is better to adopt protection measures in construction for doors.
Item 295. The minimum sizes for doorways indoors
should conform to the followings:
Width of the doorway (m)
Height of the doorway (m)
Living room door
Note: When the bathroom or toilet uses steel-door
or ? , its doorway width can be 0.5m.
Chapter 3 Public
3.1 Stairs and Elevators
3.1.1 The natural lighting and ventilation should
be set among the stairs. However, when they are limited by the plane
layout, the artificial lighting, ventilation and smoke evacuation
should be used.
3.1.2 The clear width of the flight should not
be less than 1.10 m. For the unit building with no more than 6 stories,
the clear width of the flight with railing setting on one side should
not be less than 1 m.
3.1.3 The width of the stair step should not
be less than 0.25 m; the height of the stair step should not be
more than 0.18 m; and the height of the handrail should not be less
than 0.5 m.
3.1.4 The clear width of the stair landing should
not be less than the clear width of the stair, and should not be
less than 1.10 m. The vertical height from the bottom margin of
the landing structure to the pedestrian passageway should not be
less than 2 m.
3.1.5 The clearance among the vertical rods
of the stair railing should not be more than 0.11 m. When the width
of (?) is more than 0.2 m, some measures that can prevent the children
from climbing must be adopted.
3.1.6 When the building has more than 7 stories,
or the height, which is from the door floor of the residents living
at the highest level to the first floor, is more than 16 m, the
elevators should be installed.
3.1.7 For the high-rise building, which has
more than 12 stories, there should be more than 2 elevators.
3.1.8 For the building with a tower or corridor
style, the installment of the elevators might be centralized. For
the building with a unit style, if there is only one elevator for
each unit, the units should be connected at some floors.
3.1.9 The depth of the elevator lobby should
not be less than the depth of the largest elevator car among all
of the installed elevators.
3.2 Corridor, Entrance and Exit
3.2.1 The height of the railing for the side
corridor, inner courtyard and (?) should not be less than 1.05 m,
and no less than 1.10 m for the mid-high or high-rise building.
The design for the railing should prevent the children from climbing.
The clearance among the vertical rods should be less than 0.11 m.
3.2.2 For the high-rise building, the side corridor
used as the main passageway might be sealed, and the open-shoulder
window fan or the ventilation and smoke evacuation should be used.
3.2.3 For the building in the cold area, the
storm porch cold or the out-opening door preserving heat should
be installed, and at the entrance or exit facing to the north, west
directions, the out-opening door or other cold proof facilities
should be used.
3.2.4 When the entrance and exit of the building
are under the balcony or the side corridor, some safety measures
should be adopted.
3.2.5 At the entrance and exit of the building,
the remarkable sign should be set up; the mailbox should be installed
for every household; and for the high-rise building, the duty room
might be installed.
3.3 Garbage Chute
3.3.1 For the building with more than 4 stories,
the garbage chute should be installed.
3.3.2 The garbage chute should not be arranged
close to the bedroom and living room. If we had to do so, some measures,
such as damp prevention, dust prevention and sound insulation should
3.3.3 The material used for the garbage chute
should resist corrosion, prevent damp, be non-combustible, and the
inner surface must be smooth. The projection or the pipeline is
not allowed beneath the garbage door at the top floor.
3.3.4 The material used for the garbage hopper
might be corrosion resisting. The hopper door should be tightly
closed automatically. The garbage exit might be installed for every
floor. For the high-rise building, the trash closet might be installed.
3.3.5 On the top of the garbage chute, the exhaust
pipe should extend to the outdoors. At the bottom, the sealed garbage
can or closet should be installed. At the bottom of the high-rise
building, the garbage room should be installed.
3.4 Basement and Semi-basement
3.4.1 The residence should not be installed
in the basement. When it is installed in the semi-basement, some
measures, such as lighting, ventilation, damp prevention, and drainage
must be adopted.
3.4.2 When the basement and semi-basement are
used for the storage room, bicycle garage, and equipment room, the
clear height should not be less than 2 m.
3.4.3 For the basement and semi-basement, some
measures, such as water prevention, damp prevention, and ventilation,
might be adopted. For the light shaft, the facilities, which can
prevent the rainwater entering and can drain the water, should be
3.5 Public Annex
3.5.1 In the residential building, it is forbidden
to install a store, workshop, and warehouse that keep and use the
chemical material which are inflammable and explosive. Furthermore,
the store and workshop that make noise and vibration, and pollute
the environment are not allowed.
3.5.2 In the residential building, the equipment
room, such as boiler room, transformer room, should not be installed.
However, if it is limited by the plane layout, the regulations for
fire prevention and other related discipline should be satisfied.
3.5.3 In the residential building, when installing
a restaurant or a dining room, the chimney in the kitchen should
be higher than the residential floor. Furthermore the indoor air
conditioner, refrigerator, and processing machine should adopt the
damp and noise elimination methods.
3.5.4 The entrance and exit for the residence
and public annex should be separated.
Chapter 4 Indoor Environment
and Building Equipment
4.1 Indoor Environment
- For every residential unit, there should
be at least one bedroom or living room that can obtain the
sunshine. Exceptions due to the environmental limitations
can be allowed.
- The ratio of the window to floor means
that the window area of the room, which can obtain the sunshine
directly, is divided by the floor area of the same room. The
minimum ratios of window to floor should not be less than
the values that are provided in Figure 4.1.2.
The Room Type
The Ratio of the Window to Floor
Bedroom, living room, and kitchen
Lavatory, bathroom and entrance hall
4.1.3 The residence should have good natural
ventilation. In the areas of cold, warm, and hot weather, if the
residence faces to only one direction, the artificial ventilation
must be used.
4.1.4 The elevator hoistway might not be installed
close to the bedroom or living room; the elevator machine room might
be installed neither above the bedroom and living room, nor close
to them. However, if it had be installed due to the plane layout,
some measures, such as sound insulation and shock absorption, should
4.1.5 In the areas of cold, warm, and hot weather,
if the residence faces to the west, the sunshade method might be
used for the exterior windows of the bedroom and living room.
4.2 Building Equipment
4.2.1 For the residence, the water supply and
drainage system should be installed indoors.
4.2.2 In the areas of cold and cool weather,
the central heating system should be adopted by the mid-high and
high-rise buildings. The central heating system might be adopted
by the low-rise building.
4.2.3 If the residence uses the coal or firewood
as the main fuels for dispersed heating purpose, the chimney should
be installed. If one chimney is used by several residents at the
same floor or different floors, the measure that prevents smoke
from leaking must be adopted.
4.2.4 There should be 2 sockets in the living
room and bedroom individually, and one socket in the kitchen, bathroom,
and entrance hall individually. The three-hole socket with single-phase
must be used.
4.2.5 For the mid-high and high-rise buildings,
the television cable should be buried in advance, and the junction
box should also be pre-buried at every floor.
4.2.6 The television system using public antenna
should be installed for the buildings, which have screening impacts
on the television signal, have complex reflexive waves, or are hid
by the higher buildings.
4.2.7 The electric meter and water meter should
be installed for every unit. When using the coal gas, the gas meter
should be installed.
Note: 1 When it is very strict, and no exception,
"must" and "forbid" are used.
2 When it is strict, and usually need to do
"should" and "should not" are used.
3 When it is suggested, and please do so if
"might" and "might not" are used.
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