---
watermark: ORIRO
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name: creative-architecture
provider: ORIRO.ai
copyright: Copyright (c) 2026 ORIRO.ai
description: >






  Architecture basics — spatial design, structural systems, building codes, sustainability, and architectural history.
  Sources: Open educational resources, Canva Design School, MIT OCW Architecture, design classics.
---

# Architecture Basics

## Principles of architectural design

### The Vitruvian triad (30 BC — still foundational)

**Firmitas:** Structural integrity and durability.
**Utilitas:** Functionality and practicality.
**Venustas:** Beauty and aesthetic pleasure.
Good architecture serves all three simultaneously.

### Space, form, and light

**Space:** Architecture creates space, not objects. The volume enclosed defines the experience.
Compression and release: Moving from low ceiling to high ceiling creates emotional impact.
Prospect and refuge: Humans prefer spaces with both overview (prospect) and shelter (refuge).

**Form:** Relationship of the building to context, program, structure.
Form follows function (Sullivan): Practical function should determine form.
Form and function are one (Wright): More integrated view — function includes spiritual and aesthetic experience.

**Light:** The most important material in architecture (Le Corbusier: "Architecture is the masterly, correct and magnificent play of masses brought together in light.")
Natural light changes throughout the day and year — design considers this.
North light (in northern hemisphere): Consistent, cool, diffuse. Studio light.
South light: Warm, direct. Passive solar.

## Structural systems

**Load-bearing masonry:** Walls carry loads. No wall removal without replacement structure.
**Post-and-beam:** Columns carry loads; walls non-structural. More flexible plans.
**Steel frame:** Enables large spans, slender profiles, glass curtain walls.
**Concrete frame (cast in place or precast):** Durable, fireproof, acoustically effective.
**Long-span structures:** Trusses, space frames, arches, shells, tensile/cable structures.

## Program and function

Architectural program: List of spaces and requirements.
Adjacency diagram: Which spaces need to be near each other?
Circulation: How do people move through the building? Corridors, stairs, elevators.
CORE: Central service area (elevators, stairs, mechanical, toilets) in tall buildings.

## Building codes and zoning

**Zoning:** Land use regulations.
Setbacks: Minimum distance from property lines.
FAR (Floor Area Ratio): Allowed total floor area / Site area. Determines building density.
Use: Residential, commercial, industrial, mixed-use designations.

**Building codes:**
IBC (International Building Code): Adopted by most US jurisdictions with amendments.
**Occupancy type** determines: Fire resistance rating, egress requirements, occupant load.
**Egress:** Exit width, maximum travel distance to exits, number of exits required.
For 1,000+ square feet, 2 independent exits typically required.
**Fire separation:** Walls and floors rated for fire resistance separate occupancies.

## Sustainable design

**Passive design (most important):**
Orientation: Long axis east-west captures winter sun.
Shading: Overhangs sized to block summer sun, allow winter sun.
Natural ventilation: Cross ventilation, stack effect.
Insulation and thermal mass.

**LEED certification:** Points-based system across: Sustainable sites, water, energy, materials, indoor quality.
**Passive House standard:** Rigorous energy standard. Heat demand < 15 kWh/m²/year. Air leakage < 0.6 ACH at 50Pa.

## Architectural history capsule

Ancient: Post-and-lintel (Greece), arch and vault (Rome).
Medieval: Gothic cathedral — flying buttresses liberate wall for glass.
Renaissance: Classical revival, human scale and proportion.
Industrial revolution: Iron and glass, new structural possibilities.
Modernism (20th c.): Form follows function, rejection of ornament (Loos), white walls, flat roofs (Le Corbusier), open plan (Mies, Wright).
Postmodernism: Ironic historical reference, complexity.
Contemporary: Parametric design, sustainability, urban resilience.

Sources: MIT OCW Architecture (free), Ching "Architecture: Form, Space, and Order" (principles), Frampton "Modern Architecture: A Critical History" (principles), IBC code provisions, Architecture 2030 (free climate resources)