SLIA Part I key terms
SLIA Part I · Get comfortable with the vocabulary.
- Pritzker Architecture Prize
- Related: Modernism, Postmodernism
An annual international award recognizing a living architect whose built work demonstrates consistent excellence and significant contribution to humanity and the built environment. It is commonly described as architecture's highest honor and is administered by the Hyatt Foundation.
- Modernism
- Related: Postmodernism, Pritzker Architecture Prize
A twentieth-century movement favoring functional planning, honest expression of structure and materials, and rejection of historicist ornament. Its architectural wing is often called the International Style and is associated with open plans, ribbon windows, and pilotis.
- Postmodernism
- Related: Modernism, Critical Regionalism
A late twentieth-century reaction against Modernist austerity that reintroduced historical quotation, color, ornament, and wit. Its architecture often layers symbolic references and double coding, addressing both popular and expert audiences, as in the work of Venturi and Graves.
- Critical Regionalism
- Related: Postmodernism, Vernacular Architecture
An approach that resists placeless universal architecture by grounding design in local climate, topography, materials, and craft traditions while engaging modern technique. Frampton framed it as a dialectical practice mediating global and local culture.
- Vernacular Architecture
- Related: Critical Regionalism, Bioclimatic Design
Buildings produced by local builders using indigenous materials, techniques, and forms shaped by climate, culture, and available resources rather than by formally trained architects. It evolves through tradition and adaptation and is a key reference for sustainable design.
- Parti
- Related: Schematic Design, Program
The central organizing idea or diagram of a design scheme, expressing the essential formal and functional concept in simplified terms. It guides decisions throughout design development and is often represented as a small abstract sketch.
- Program
- Related: Parti, Schematic Design
The stated requirements of a building project: spaces, sizes, adjacencies, occupancy, performance criteria, and budget. Programming is the analytical process of translating client needs and constraints into this written and diagrammed brief before design begins.
- Schematic Design
- Related: Design Development, Parti
The first standard phase of architectural services, in which concept options, massing, and preliminary plans are developed and reviewed with the client. It establishes the design direction and typically concludes with client approval before design development.
- Design Development
- Related: Schematic Design, Construction Documents
The project phase following schematic design in which the approved concept is refined into dimensioned plans, sections, elevations, and material selections. It fixes major systems and typically ends with client sign-off before construction documents are produced.
- Construction Documents
- Related: Design Development, Specification
The final, coordinated drawings and specifications that define the work for bidding and construction. They are contract documents, must be internally consistent, and are the basis for contractor pricing, permits, and field administration.
- Specification
- Related: Construction Documents, Shop Drawing
A written project document describing materials, products, workmanship, and performance requirements, organized by construction divisions such as CSI MasterFormat. Specifications complement drawings and govern quality where graphic information cannot.
- Shop Drawing
- Related: Specification, Request for Information
A contractor-prepared detail drawing showing how a specific component will be fabricated and installed. The architect reviews it for design conformance, not for dimensions or means of construction, and review does not relieve the contractor of responsibility.
- Request for Information
- Related: Shop Drawing, Change Order
A formal written query from the contractor asking the design team to clarify ambiguous or missing information in the contract documents. Responses become part of the project record and may lead to a change order if cost or time is affected.
- Change Order
- Related: Request for Information, Substantial Completion
A written modification to the construction contract, signed by the owner, adjusting scope, price, or schedule. It requires agreement on cost and time before work proceeds and is normally initiated by the contractor through a change proposal.
- Substantial Completion
- Related: Change Order, Punch List
The stage at which the work is sufficiently complete for the owner to occupy and use it for its intended purpose. It starts warranty periods, shifts risk of loss to the owner, and is certified by the architect.
- Punch List
- Related: Substantial Completion, Retainage
A written inventory of incomplete or defective work identified at substantial completion that the contractor must correct. Completion of punch-list items is a typical condition for final payment and release of retainage.
- Retainage
- Related: Punch List, Lien
A percentage of each progress payment withheld by the owner to protect against incomplete or defective work. It is released at substantial or final completion, and maximum rates are often limited by state statute.
- Mechanic's Lien
- Related: Retainage, Standard of Care
A statutory claim against a property by contractors, subcontractors, or suppliers who have not been paid for labor or materials. It can cloud title and force sale, and strict notice and filing deadlines apply.
- Standard of Care
- Related: Mechanic's Lien, Errors and Omissions Insurance
The degree of skill and care ordinarily exercised by competent architects performing similar services under similar conditions. It defines professional negligence, and breaching it is the basis of most malpractice claims.
- Errors and Omissions Insurance
- Related: Standard of Care, Indemnification
Professional liability coverage protecting the architect against claims of negligent design or professional acts. It typically covers defense costs and damages up to policy limits, and claims-made policies require continuous or extended reporting coverage.
- Indemnification
- Related: Errors and Omissions Insurance, Standard of Care
A contractual promise by one party to hold another harmless from specified losses or claims. In design contracts, architects resist broad indemnities covering another party's own negligence, and many states limit such clauses by statute.
- AIA Owner-Architect Agreement
- Related: Basic Services, Additional Services
A widely used standard-form contract, such as AIA B101, defining scope, compensation, and responsibilities between owner and architect. Standard forms are balanced starting points that parties modify to suit project needs.
- Basic Services
- Related: AIA Owner-Architect Agreement, Additional Services
The core architectural services enumerated in a standard owner-architect agreement, covering schematic design through construction contract administration. Anything outside this enumerated scope is treated as additional service requiring separate compensation.
- Additional Services
- Related: Basic Services, AIA Owner-Architect Agreement
Services beyond the defined basic scope, such as extensive redesign, cost estimating, or post-occupancy evaluation, compensated separately. Identifying them early prevents uncompensated work and scope disputes.
- Sustainable Design
- Related: Embodied Carbon, Bioclimatic Design
Design that reduces environmental impact over a building's life cycle through energy efficiency, material selection, water conservation, and healthy indoor environments. It balances ecological, economic, and social performance rather than pursuing a single metric.
- Embodied Carbon
- Related: Sustainable Design, Life-Cycle Assessment
The total greenhouse gas emissions associated with extracting, manufacturing, transporting, installing, and disposing of building materials. It is measured through life-cycle assessment and is distinct from operational carbon from building energy use.
- Life-Cycle Assessment
- Related: Embodied Carbon, Sustainable Design
A systematic method of quantifying environmental impacts of a building or product across its whole life, from material extraction to end of life. Results inform comparisons among design options and support environmental product declarations.
- Bioclimatic Design
- Related: Vernacular Architecture, Thermal Mass
Design that responds to local climate data, using sun paths, prevailing winds, and humidity to shape orientation, massing, shading, and natural ventilation. It reduces reliance on mechanical systems by working with, not against, site conditions.
- Thermal Mass
- Related: Bioclimatic Design, Building Envelope
The capacity of a material to absorb, store, and later release heat, moderating interior temperature swings. High-mass materials such as concrete or masonry work best when coupled with insulation and correct solar exposure.
- Building Envelope
- Related: Thermal Mass, Thermal Bridge
The boundary separating conditioned interior space from the exterior, including walls, roofs, windows, and foundations. Its performance in heat, air, and moisture control largely determines energy use and durability.
- Thermal Bridge
- Related: Building Envelope, Thermal Mass
A path of high-conductivity material that bypasses insulation and allows rapid heat flow through the envelope, such as a steel balcony slab. It causes cold surfaces, condensation risk, and increased energy loss, and should be broken with isolators.
- Vapor Barrier
- Related: Building Envelope, Thermal Bridge
A material restricting moisture diffusion through an assembly, placed on the warm side of insulation in cold climates to prevent condensation within the wall. Placement depends on climate, and misplacement can trap moisture and cause rot.
- Load-Bearing Wall
- Related: Post and Beam, Shear Wall
A wall that carries structural loads from floors and roof to the foundation, in addition to its enclosure function. Removing or altering one requires structural engineering, and its layout constrains interior planning flexibility.
- Post and Beam
- Related: Load-Bearing Wall, Shear Wall
A structural system in which vertical posts carry horizontal beams, transferring loads to foundations and allowing open interior spans. Its frame can be expressed architecturally, and it enables non-load-bearing infill walls.
- Shear Wall
- Related: Load-Bearing Wall, Post and Beam
A stiff vertical wall designed to resist lateral forces from wind and earthquakes and transfer them to the foundation. It is typically reinforced concrete or braced wood and is critical to a building's seismic stability.
- Universal Design
- Related: Egress, Occupancy Classification
Design of environments usable by all people, to the greatest extent possible, without adaptation or specialized design. It addresses mobility, vision, hearing, and cognition and often exceeds minimum accessibility code requirements.
- Egress
- Related: Occupancy Classification, Universal Design
The continuous, unobstructed path of travel from any point in a building to a public way, including exit access, exits, and exit discharge. Codes govern travel distance, door swing, width, and number of exits.
- Occupancy Classification
- Related: Egress, Zoning Ordinance
The category assigned to a building or space based on its use, such as assembly, business, or residential, which determines applicable code requirements. Classification drives egress, fire separation, and construction type rules.
- Zoning Ordinance
- Related: Occupancy Classification, Floor Area Ratio
A local law regulating land use, density, height, setbacks, and bulk within designated districts. It constrains what can be built on a site, and relief from its requirements is obtained through variances or special permits.
- Floor Area Ratio
- Related: Zoning Ordinance, Setback
The ratio of a building's total floor area to the area of its lot, used by zoning to control density. A higher permitted ratio allows a larger building, and it is often traded for public amenities.
- Setback
- Related: Zoning Ordinance, Floor Area Ratio
The minimum required distance between a building and a lot line or street, imposed by zoning. Setbacks protect light, air, and privacy and shape the buildable envelope of a site.