Permit Drawings, Construction Drawings and Shop Drawings: What Each Set Is For

A practical guide to who prepares each drawing set, what it controls, and how owners can prevent outdated information from reaching the site.

A drawing can be correct for its purpose and still be incomplete for construction. Permit drawings explain enough for an authority to review the proposed work. Construction drawings coordinate the information needed to price and build it. Shop drawings show how a selected supplier or trade will fabricate and install a specific component.

Problems begin when those purposes are blurred. A contractor may price from a permit set that does not contain final details. A millwork supplier may fabricate from an old equipment schedule. An owner may approve a rendering without realizing that dimensions, access panels or service connections remain unresolved.

The solution is not simply to produce more drawings. The project needs a clear document path: each set must have an author, purpose, issue status, review responsibility and current revision. Everyone should know which document controls the next decision.

• Permit approval confirms an authority review of the submitted scope; it does not automatically make the set complete for pricing, fabrication or field installation.

• Construction drawings must coordinate dimensions, assemblies, equipment and building systems against verified site conditions.

• Shop drawings should be reviewed against the design documents before fabrication, with comments, samples and revisions recorded in one register.

Permit drawings ask: may this proposed work be approved? They describe the scope and code-related information required by the authority having jurisdiction.

Construction drawings ask: what exactly should be built? They add coordinated dimensions, assemblies, schedules, interfaces and installation intent for pricing and field work.

Shop drawings ask: how will this selected product or component be made and installed? They are prepared by a fabricator, supplier or specialist trade using the design documents, verified field dimensions and product information. Our commercial renovation project team guide explains where the owner, designers, engineers, contractor and specialist vendors fit into the same decision chain.

A permit set normally identifies the project address, proposed use, area of work, floor plan, exits, accessibility provisions, fire and life-safety information, assemblies and the discipline drawings required for the proposed scope. The actual submission requirements depend on the address, use, building and reviewing authority.

Before submission, the owner should confirm the operating brief: equipment, seating or staff capacity, rooms, storage, hours, deliveries and any unusual process. A technically complete application can still describe the wrong business operation if these decisions were never settled.

Do not treat the permit stamp as a construction-completeness stamp. Approval relates to the documents reviewed by the authority. It does not confirm supplier dimensions, finish samples, fabrication tolerances, hidden site conditions or every trade interface.

For Vancouver projects, the City’s commercial renovation permit information is a useful starting point. Confirm the current requirements for the specific property and scope with the applicable authority and project professionals.

The construction set should turn the approved concept into information a contractor can price, sequence and build. Typical content includes dimensioned plans, reflected ceiling plans, elevations, sections, door and finish schedules, wall types, equipment locations and coordinated architectural, structural, mechanical, electrical, plumbing and fire-protection information where required.

The important word is coordinated. A ceiling plan cannot be finalized independently from lights, diffusers, sprinklers, detectors, access panels and signage. A service counter cannot be detailed without equipment dimensions, power, plumbing, ventilation, clearances and maintenance access.

Identify the basis of each dimension. Some dimensions come from a measured site survey, some from landlord drawings, and some from vendor information. If an existing wall, slab opening or service location has not been verified, mark the hold point instead of allowing an assumed dimension to look final.

Issue the set with a clear status such as pricing, coordination or construction. A drawing sent for discussion should not quietly become the document used for rough-in. The title block and transmittal should state the date, revision and intended use.

Shop drawings are commonly required for millwork, glazing, doors and hardware, structural steel, signage, commercial kitchen systems, specialty equipment and other fabricated or selected products. They should show actual materials, profiles, dimensions, joints, anchorage, interfaces, service openings and installation requirements.

The supplier prepares them after reviewing the design documents and confirming the information it is responsible for. Field dimensions should be taken at the stage identified in the schedule. Measuring too early can miss finished wall thicknesses; measuring too late can delay fabrication.

A shop drawing review is a coordination check, not a transfer of responsibility. The designer can compare the submittal with the design intent, while the contractor and supplier remain responsible for means, methods, fabrication accuracy and information assigned to them by the contract. Exact responsibilities should be stated in the project agreements.

Keep finish samples, hardware sets, equipment cut sheets and shop drawings linked to the same submittal record. An approved elevation with an unapproved laminate, handle or appliance model is not ready for fabrication.

Maintain one register listing the drawing or submittal number, title, discipline, issuer, revision, issue date, purpose, reviewer, response status and superseded version. Give every project participant access to the current register rather than asking them to search old email attachments.

Mark superseded files clearly and remove them from the active site folder. Printed drawings need the same control as digital files. When a revision affects work already priced, ordered or installed, identify the affected trade and obtain a written cost and schedule response.

The register should also track unresolved items. A note such as “equipment by owner” is not enough when rough-in depends on the model, connection, weight or clearance. Record who must supply the information and the last responsible date.

A field question should start with a drawing reference and a specific conflict: what was expected, what was found and which decision is required. The response should identify whether the answer is a clarification, a priced change, a revised drawing or a matter that needs authority or landlord review.

Do not leave the final decision only in a text message, site photo or meeting note. Add it to the controlled record and distribute it to every affected discipline. A moved sink can change millwork, plumbing, electrical, floor penetrations and equipment clearances even when the architectural change looks small.

Before accepting a change, confirm four things: technical impact, permit or landlord impact, price, and schedule. Work should not proceed on a verbal instruction when any of those items remains unclear.

At closeout, collect record drawings or marked-up as-builts appropriate to the project scope. They should reflect relevant field changes and support future maintenance, warranty work and later renovations; they are not simply a reprint of the original permit set.

A useful tender package states exactly which drawings, specifications, schedules and addenda form the pricing basis. Ask bidders to list exclusions, allowances and conflicts. If one contractor assumes final millwork details while another excludes them, the totals are not comparable.

Before construction starts, issue a coordinated construction set and a list of outstanding submittals. Separate information that must be resolved before rough-in from information that can wait until fabrication. This prevents every open item from being treated as equally urgent.

When the permit set and construction set differ, do not choose whichever detail is easier to build. The design team should reconcile the difference and determine whether the revision affects the approved scope. Record the answer before related work is covered or fabricated.

Before permit submission: confirm the business operation, room functions, major equipment, occupancy assumptions, exits, accessibility approach and landlord constraints.

Before construction issue: review a room-by-room equipment and finish matrix, critical dimensions, ceiling coordination, service locations and any remaining allowances or hold points.

Before fabrication: confirm field dimensions, product selections, colours, hardware, samples, service openings and the latest design revision. Owners should review operational choices, while the qualified project team remains responsible for technical design and compliance.

A preliminary or permit-stage price is possible if the contractor clearly states assumptions, allowances and exclusions. A reliable construction price needs coordinated details, schedules, equipment information and a defined drawing issue. Any unresolved item should remain visible as an allowance or risk rather than being treated as included.

The conflict should be raised through the project’s formal review process before fabrication. The responsible designer confirms design intent, while the contractor and supplier address fabrication, field dimensions and installation information assigned to them. The final resolution, cost and schedule effect should be recorded and distributed.

Not every clarification has the same approval impact. A change that affects the approved scope, life safety, accessibility, structure or regulated building systems may require review by the authority, landlord or both. The responsible professionals should assess the specific change before work proceeds.

Y&Y Construction can help organize drawing responsibilities, site verification, trade submittals and revision tracking so the permit, construction and fabrication information stay aligned. Bring the latest drawings, landlord criteria, equipment list and outstanding decisions to the coordination review.