Building Permit Glossary

Construction Drawings

The plans, elevations, sections, details, and specifications that explain what will be built and how the work fits together.

DocumentsPlan reviewConstruction types

Applies to

Sheds · Garages · Decks · Additions · Remodeling · New homes

Project example

A detached garage plan set may include a floor plan, four exterior elevations, a building section, foundation details, framing information, and connection details.

Also called

building planspermit drawingsplan setarchitectural drawings

Where this term shows up in permit work and how it affects the project

Drawings turn the project description into a reviewable design. Missing dimensions, unclear assemblies, or a footprint that conflicts with the site plan can trigger corrections before the AHJ reaches the deeper code questions.

If this term appears in a form, plan comment, or local ordinance, start with the building permit guide, compare it against the zoning permit guide, then use the permit guide directory to find the right local path.

Why it matters for approval

Why construction drawings matters in a permit file

A permit application says what the applicant wants to do. Construction drawings show the size, layout, materials, structure, and details the reviewer needs to evaluate and the inspector later expects to find in the field.

Where it appears in the permit process

Design and estimating
The scope becomes measurable enough to price, coordinate, and compare against zoning and site constraints.
Permit intake
The AHJ checks that the required views, dimensions, labels, and professional seals are present for the project type.
Plan review
Reviewers evaluate structural, life-safety, energy, trade, and local-code details against the submitted set.
Construction and inspection
The approved set becomes the field reference; material changes may need AHJ approval before installation.

What you may need

Floor plans showing rooms, walls, openings, fixtures, and dimensions
Exterior elevations showing grade, height, openings, and finishes
Building sections and construction details
Foundation, framing, structural, electrical, plumbing, or mechanical information triggered by the scope
Professional seal, calculations, or manufacturer engineering when local rules require them

Where to get it or verify it

Ask the building manufacturer or product supplier for permit-ready drawings and engineering specific to the model and site conditions.
Use a residential designer, architect, engineer, design-build contractor, or specialty trade professional according to the project's complexity and local licensing rules.
Start with the AHJ's drawing checklist before hiring someone so the requested deliverable matches the review standard.

Common mistakes that create comments or delays

Buying generic internet plans that do not match the actual project, site, loads, or adopted code
Submitting marketing floor plans instead of dimensioned construction documents
Letting the application, site plan, elevations, and structural sheets describe different footprints
Assuming every residential project needs an architect or that none ever need a professional seal

What to do next

Confirm the exact project scope, property constraints, and AHJ drawing checklist.
Identify which sheets can come from the manufacturer and which require local design or engineering.
Coordinate the drawing footprint with the approved site-plan location.
Check every sheet for matching dimensions, revision dates, and project information before filing.

Read the practical guides

How contractor permitting worked before Permitech Building permit versus zoning approval Why permits get denied

How a reviewer reads a construction drawing set

A reviewer does not read a permit set like a homeowner reads a floor plan. The reviewer follows the project across sheets, compares repeated facts, and tests whether the drawings contain enough information to verify code compliance. A polished rendering can still be unreviewable if dimensions, assemblies, loads, or connections are missing. The goal is not to make the set look architectural; it is to make every approval question traceable to a drawing, calculation, specification, or accepted product document.

Scope and sheet coordination

The project description, application, site plan, floor plans, elevations, sections, and structural sheets must describe the same work. Reviewers commonly compare overall width, length, height, area, use, number of stories, openings, and location. If one sheet shows a 20-by-24-foot garage and another shows 22 by 24, staff cannot safely assume which version is intended. A coordinated title block, sheet index, revision date, and clouded change help the reviewer identify the controlling set.

Existing versus proposed conditions

Addition and remodeling plans should clearly separate what remains, what is removed, and what is new. This matters because existing construction may be allowed to remain while new work must satisfy current requirements, and because a reviewer needs to understand how loads, fire separation, egress, utilities, and weather protection cross the connection. Demolition notes alone are rarely enough when the final condition depends on an existing wall, beam, foundation, or opening.

Dimensions, elevations, and reference points

A dimension is useful only when its endpoints and datum are clear. Plans usually need overall and component dimensions, while elevations and sections establish grade, floor, plate, ceiling, roof, and total height. The zoning reviewer may measure height differently from the building reviewer, so the drawing should identify the reference used instead of presenting one unexplained number. Critical clearances, stair geometry, room sizes, and opening dimensions should be shown where they are reviewed rather than inferred from scale.

Assemblies and load path

Structural review follows loads from roof and floor members through beams, headers, posts, walls, anchors, footings, and soil. Architectural sheets identify the layout, but sections and details explain how the pieces connect. Prescriptive tables, truss packages, connector schedules, manufacturer engineering, or project-specific calculations may supply information that the plan set does not repeat. Those documents need to match the member sizes, spans, reactions, materials, and site design conditions shown elsewhere.

Life safety, energy, and trade coordination

Room use, exits, emergency escape openings, smoke and carbon-monoxide alarms, fire separation, insulation, ventilation, equipment, fixtures, and service changes can trigger separate reviews. A plan that focuses only on framing may still be incomplete for the permit being requested. The drawings should show which systems are in scope and coordinate their penetrations, clearances, access, and inspections so one approved detail does not conflict with another discipline.

The document trail from planning to inspection

Before design is finalized

Collect the property base, zoning constraints, adopted-code information, AHJ checklist, product selections, and known existing conditions. Resolve the footprint and use before paying for detailed engineering. This is where Permitech can help connect the address and project type to the responsible departments and likely document path, but the design professional still owns the technical design within their scope.

At first submittal

Submit one dated and indexed set with the application, site plan, calculations, specifications, product approvals, and professional seals required by that jurisdiction. File names and sheet numbers should make the package easy to audit. Keep a copy of exactly what was submitted; otherwise the team cannot reliably determine whether a later comment refers to the current sheet or an older version sent by email.

During corrections and construction

Answer every comment in a response letter, identify the sheet and detail where the change appears, and submit a complete coordinated replacement set when the AHJ requires one. After approval, distribute the stamped set to the field and route material design changes back through the appropriate revision process. Inspectors generally verify the approved documents, not the unsubmitted sketch or supplier substitution that arrived after issuance.

Questions to resolve before filing

Which department owns each review: zoning, building, structural, fire, health, public works, or a trade authority?

Does the AHJ publish a project-specific drawing checklist, minimum sheet size, file-naming rule, or electronic upload limit?

Which parts of the project can use prescriptive details, and which require manufacturer engineering or a licensed design professional?

Do the site plan, application, floor plan, elevations, structural sheets, and calculations repeat the same footprint, use, height, and revision date?

Are existing conditions verified well enough to support the proposed attachment, opening, load path, utilities, and fire separation?

What must remain visible for inspection, and which field changes require an approved revision before the work is covered?