RULE 4.

TYPES OF CONSTRUCTION

Type I – wood construction

Type II – wood construction, fire-resistant (1 hour)
Type III – masonry and wood construction (1 hour)
Type IV – steel, iron, concrete, or masonry construction
Type V – steel, iron, concrete, or masonry construction (4 hour)

RULE 5. REQUIREMENTS OF FIRE ZONES

FIRE ZONES
Areas within which only certain types of buildings/structures are permitted to be
constructed based on their use or occupancy, type of construction, and resistance to fire.

FIRE ZONE DESIGNATION

 Non-Fire Restricted Zone –All types of construction
 Fire Restrictive Zone – Type I not allowed
 Highly Fire Restrictive –Types I, II, & III not allowed

BUILDINGS IN MULTIPLE FIRE ZONES

Shall be considered as part of the more restrictive fire zone if more than 1/3 of its
total floor area is in that zone.

RULE 6. FIRE RESISTIVE REQUIREMENTS IN CONSTRUCTION

FIRE RESISTIVE RATING

 Degree to which a material can withstand fire.
 Usually expressed in the form of time period rating (how long a material can withstand
being burned).

FIRE RESISTIVE STANDARDS

Fire Resistive Regulations
The Secretary shall prescribe standards and promulgate rule and regulations on the testing of
construction materials for flame-spread characteristics.

RULE 7. OCCUPANCIES & REQUIREMENT

Occupancies
A: Residential Dwellings
A-1: Residential building for single family occupants
A-2: Residential building for non-leasing occupants not exceeding 10 persons.
Change in Occupancy
B: Residentials, Hotels, Apartments No change shall be made unless building complies with the requirement or have the approval of
Multiple dwelling units include boarding or lodging houses, hotels, apartment buildings, rowhouses, Building Official.
convents, monasteries, and other similar buildings, each of which accommodates more than 10
persons. Mixed Occupancies
 Rule of Thumb: the buildings adhere to the stricter requirements.
C: Education, Recreation  Except: if it’s a one-story building, in which case each portion shall conform to
Buildings used for school or day-care purposes are not classified in Group H or I occupancies. applicable rules and if the minor occupancy does not exceed 10% of the building, in
which case it is ignored.
D: Institutional
D-1: Institutions where personal liberties are restrained (mental hospitals, jails) Location on Property
D-2: Institutions for the care of non-ambulatory patients and children under kindergarten age and Right of Way
D-3: Institutions for ambulatory patients and homes for children over kindergarten age no buildings shall be constructed unless it adjoins or has direct access to a public space, yard, or
street on at least one of its sides.
E: Business and Mercantile Eaves over Windows
E-1: No work is done except exchange in parts, maintenance without open flame, welding or highly eaves over required windows shall at least be 750mm from the side and rear property lines (property
flammable liquids (gasoline filling station, storage garage) line – eaves)
E-2: Wholesale and retail stores, office buildings, dining establishments
E-3: Aircraft hangars and open parking garages (no repair work) Firewalls
A fireproof barrier is used to prevent the spread of fire between or through buildings. It is
F: Light Industrial important because the building extends into setbacks.
Ice plants, power plants, pumping plants, cold storage, factories and workshops using incombustible
and non-explosive materials Allowable Firewalls
 R1: Not allowed however an abutment of 3.20m high is OK, for carports above
G: Storage, Hazardous 1.50m, the abutment shall be perforated concrete blocks.
G-1: Medium industrial, storage of highly flammable materials  R2: One side only, maximum of 80% of the length of side property line.
G-2: Medium industrial, storage flammable material: dry cleaning plants, paint stores, spray-painting  R3: Two configurations are allowed: two sides, maximum of 85% of each side, total
room should not exceed 65% of lot perimeter, two-storeys high only and one side + rear,
G-3: Medium industrial structures where loose combustible fibers are generated: wood working 90% of side or rear (up to 100% for rear if only 4m), total should not exceed 50%
establishments of lot perimeter, two-storeys high for side and 3.20m high for rear.
G-4: Medium industrial for repair garages and engine manufacturing  R4: Two sides, maximum of 85% of each side, total should not exceed 50% of lot
G-5: Medium industrial for aircraft repair perimeter, three-storeys maximum.
 R5: two configurations allowed: two sides, maximum 75% of each side, total should
H: Assembly for Less Than 1,000 not exceed 50% of lot perimeter, maximum height: 8 storeys and one side + rear,
H1: Assembly buildings with stage for less than 1,000 maximum 65% of side and 50% of rear, maximum height: 8 storeys for side, 14m
H2: Assembly buildings without stage for 300 or more for rear.
H3: Assembly buildings without stage for less than 300  Commercial, Institutional and Industrial: provide sprinkler, install fire-retardant or
H4: Recreational/tourism developments not included in other H classifications (stadiums, reviewing fire-suppression devices, maximum of 70% lot perimeter, RROW setbacks are
stands, and amusement parks) complied.

I: Assembly for More Than 1,000 or More Allowable Floor Areas

Any assembly building with stage and an occupant load of 1,000 or more o TGFA: total gross floor area, the total space inside the building
o Allowable Maximum TGFA: no. of floors * footprint, depends on lot type, zoning,
J: Accessory use of firewalls.
J-1: Agricultural structures o BHL: building height limit, depends on zoning and RROW, measured from
J-2: Carports/garages, fences, towers, and pools established grade line to the topmost of the building excludes signage, masts,
J-3: Stages, courts, tombs, mausoleums, zoos, and banks antenna, or telecom tower.
o Grade Line: highest adjoining sidewalk or natural grade line but if the grade is
Zones
sloping, less than 3m take highest grade and more than 3m take the average and if
roof is flat, rooftop and if roof is sloping, middle of roof height.
o Height Limit Projections: towers, spires and steeples if made of combustible
materials, 6m above BHL and if made incombustible materials, limited only by
structural design.

BHL + RROW: the RROW width also dictates the BHL, 6-7m RROW (3 storey or 9m), 4-5m
RROW (2.5 storey or 7.5m), 0-3m (2 storey or 6m) exceptions on PUD

Parking Slot Sizes

Parking Requirements
Churches
For every 50 sqm of congregation area provide 1 slot and 1 jeepney slot

Public Universities
1 car slot for every 5 classrooms, 1 loading space for 2 jeepney or shuttle slots, 1 school bus for
every 200 students.

Public Hospitals
1 car slot for every 25 beds, 1 loading space for 2 jeepney/shuttle slots, 1 slot for articulated truck, 1
slot for standard truck for every 5,000 sqm gross floor area, add ruck maneuvering space outside
RROW.
Courts
Minimum dimension: 2m
Fractions of Computing
Hence, minimum area: 4sqm
Computing parking slots, a fraction of 50% or higher shall be considered as one slot.
All inner courts shall be connected to a street or yard by a passageway of at least 1.2m wide
Off-Site Parking Slots
Joining of Courts
o If a multi-floor parking garage is located within a 200m radius of the building, 20%
Minimum dimension may be reduced to 1.5m in cluster living units with adjacent courts
of the required parking provisions may be served the multi-floor parking garage.
Minimum area per court: 3 sqm
o Reserved or leased parking slots may have permanent parking building and not in
Separation wall: 2m high maximum
the vacant lot. The said parking is not more than 100m away, if residential and not
more than 200m away, if commercial.
Maneuvering Space
Using RROW as a maneuvering space is not allowed.
To prevent this, direct access of parking/loading/utility slots to the RROW shall be disallowed.

Traffic-Generating Buildings
The distance between such buildings and major road intersections is regulated.
The building ingress and the intersection shall be at least 50m apart (measured between the two
nearest curbs).

Front Yard as Parking

Not allowed for R2 Maximum, R3 Maximum, GI, C1, C2 and C3 and 50% of front may be used
as parking for R2 Basic and R3 Basic.

Sanitation
At least one sanitary toilet and adequate washing and draining.

Foundation
At least 250mm thick
At least 600mm below the surface of the ground

Structural Loads
First floor live load: 200kg/sqm
Second floor live load: 150kg/sqm
Wind load for roofs: 120kg/sqm (vertical)

Stairs
Minimum width: 750mm
Minimum riser: 200mm
Minimum tread: 200mm

Entrance + Exit
At least one entrance, and another for exit

Rule VIII: Light and Ventilation

Intent
Every building shall be designed, constructed, and equipped to provide adequate light and
ventilation.

Variables
Setbacks
Occupancy
Room Sizes
Ceiling Heights
Window Sizes
Courts

Measurement of Site Occupancy

Taken at ground level and exclusive for courts, yards, and light as well.

PSO, TOSL, USA, ISA

TLA = PSO + TOSL
TOSL = USA + ISA
USA = minimum value
ISA = maximum value

Lot Types
Inside Lot
Interior Lot
Corner Lot
Through Lot
Corner Through Lot
Corner Through Lot Abutting 3 or More Streets
End Lot

Yard vs Setback
Yard: the required open space left between outermost face of the building and the property lines.
Setback: the width of the yard