The document discusses various considerations for architectural design and building construction. It covers occupancy classifications, lot types, setback requirements, parking standards, and slope analysis. It also provides guidance on space programming and air space requirements when determining room sizes. Ceiling height standards are outlined for different ventilation scenarios. The document serves as a reference guide for architectural design and planning based on building codes.

1. ARCHITECTURAL DESIGN
OCCUPANCY CLASSIFICATION
1. GROUP A – Residential Dwellings
2. GROUP B - Residential, Hotels, Apartment
3. GROUP C – Education and Recreation
4. GROUP D – Institutional
5. GROUP E - Business and Mercantile
6. GROUP F - Industrial
7. GROUP G – Storage and Hazardous
8. GROUP H – Assembly Other Than Group I
9. GROUP I – Assembly Occupant Load 1000 or More
10. GROUP J – Accessory
(refer NBC table for Building Occupancy)
GUIDE

2. ARCHITECTURAL DESIGN
LOT TYPES
GUIDE
1. Interior Lot
2. Inside Lot
3. Corner Lot
4. Through Lot
5. Corner-Through Lot
6. Corner Lot Abutting 3 or more Streets, Alleys,
Rivers
7. End Lot
(refer table for the Types of Lot of NBC)

3. LOT CONSIDERATIONS
ARCHITECTURAL DESIGN
GUIDE
1. Total Lot Area – TLA
2. Allowable Maximum Building Footprint – AMBF
3. Percentage of Site Occupancy – PSO
4. Impervious Surface Area – ISA
5. Maximum Allowable Construction Area – MACA
6. Unpaved Surface Area – USA
SETBACK REQUIREMENTS
1. Road Right-of-Way or RROW
2. Front, Sides, Rear
(refer table for the Setback Requirements of NBC)

4. ARCHITECTURAL DESIGN
GUIDE
PARKING REQUIREMENTS
1. Parking Slot
2.50m x 5.00m – perpendicular and diagonal
2.15m x 6.00m – parallel parking
3.00m x 9.00m – Jeepney parking
3.60m x 12.00m- Truck or Bus Parking
3.60m x 18.00m- Articulated truck
2. Handicapped Requirements
(refer table for the Parking Requirements of NBC)

5. ARCHITECTURAL DESIGN
GUIDE
ANALYSIS
1. SWOT Analysis
2. Site Analysis
- Orientation and Sun Path Diagram
- Prevailing Winds
- Existing Features
- Soil and Slope Analysis
3. Diagramming

6. SWOT ANALYSIS
ARCHITECTURAL DESIGN
GUIDE
Evaluation of each character area or landscape zone
The aim in design and management is to:
a. Build on the strength
b. Minimize the weaknesses
c. Take up as many of the opportunities as possible
d. Avoid threats
Strength and Weakness
are the aspect of the site itself
Opportunities and Treats
those aspects that affect it from outside

7. ARCHITECTURAL DESIGN
GUIDE
STRENGHTS
Sample strengths:
1. Size of the area gives high carrying capacity.
2. Presence of water in various forms and sizes
3. Varied topography gives range of landscape
4. Road access

8. ARCHITECTURAL DESIGN
GUIDE
WEAKNESSES
Sample Weaknesses :
1. Core area is a long way from public access road
2. Terrain is rough and steep
3. Insects are plentiful

9. ARCHITECTURAL DESIGN
GUIDE
OPPORTUNITIES
Sample Opportunities :
1. To develop a range of recreational activities in
keeping with the landscape
2. To protect vulnerable habitats from development
3. To develop integral plan for management to ensure
minimal site degradation
4. To supply the demand for high quality facilities and
landscape settings

10. ARCHITECTURAL DESIGN
GUIDE
THREATS
Sample Threats :
1. Commercial exploitation of forested areas with good
access.
2. Forest fires
3. Uncontrolled access

11. ARCHITECTURAL DESIGN
GUIDE
SLOPE CLASSIFICATION
0-5%
excellent
5-10%
good/ fair
10-25%
poor
over 25%
unsuitable

12. ARCHITECTURAL DESIGN
SLOPE CLASSIFICATION
GUIDE
0-5% excellent
(flat to moderately flat)- color white
1. Easy to drain, resist erosion, most economical
condition for development
2. Requires minimal grading for the building
3. Ideal for recreation
4. All types of roads are feasible

13. ARCHITECTURAL DESIGN
GUIDE
SLOPE CLASSIFICATION
5-10% good / fair
(sloping) – color yellow
1. Drains easily with some minimal erosion although
some grading is required when siting building.
2. This slope range is considered good for development
3. Driveways
contours.
should
run
parallel
4. This area is good for recreation
or
diagonal
to

14. SLOPE CLASSIFICATION
ARCHITECTURAL DESIGN
GUIDE
10-25% poor
(hilly) – color yellow orange
1. Creates erosion problems due to rapid run-off
2. Stabilization may be necessary on undeveloped
slopes.
3. Extensive cut and fill of soil would be required for
siting structure.
4. Single story structures are impractical on these
slopes.
5. Any
disturbed
immediately.
area
should
be
stabilized

15. ARCHITECTURAL DESIGN
SLOPE CLASSIFICATION
GUIDE
25% unsuitable
(severe) – color yellow green
1. Creates serious erosion problems due to rapid runoff.
2. The siting of structures in these areas would be
extremely expensive and costly to the environment.
3. Procedure for building roads would be the same as
the 10-25% slope.
4. These slopes are excellent for hiking and exploration

16. ARCHITECTURAL DESIGN
GUIDE
SPACE CONSIDERATIONS
(space programming)
1. Function and Proximity of Spaces
2. Nature and Number of Users
3. Type and Number of Furniture
4. Plumbing Fixtures Required
5. Provision for Handicapped

17. ARCHITECTURAL DESIGN
GUIDE
AIR SPACE REQUIREMENTS IN DETERMINING ROOM
SIZES
SCHOOL ROOM
3.00 cu. meters w/ 1 sq. m per person
WORKSHOP, FACTORIES, OFFICES
12.00 cu. meters per person
HABITABLE ROOMS
14.00 cu. meters per person

18. ARCHITECTURAL DESIGN
CEILING HEIGHT
ARTIFICIAL VENTILATION
2.40m or higher
2.70m- ground
2.40m- second
2.10m- above floors
NATURAL VENTILATION
2.70m or higher
MEZZANINE FLOOR
1.8m or higher above and below
GUIDE