Office / Multifamily: 2,664 Issues Found
An anonymized Bay Area office/multifamily plan review uncovered life safety, fire protection, accessibility, and MEP coordination issues—before permit.
Key findings
Architectural/Structural: Fire barrier wall at trash chute vs section
Architectural
Wall section at trash chute conflicts with fire barrier wall assembly detail (rim joist vs stud soffit framing).
Architectural: Wardrobe detail vs floor plan reference
Architectural
Detail reference and floor plan callout conflict for manager unit closet/wardrobe.
Architectural: Trash room door vs west elevation
Architectural
Plan shows double door from trash room to walkway; west elevation shows no door at same grid.
Architectural/Structural/Plumbing: Floor assembly vs pipe penetration detail
Structural
Floor type schedule (post-tensioned) vs typical non-metallic pipe penetration fastener detail conflict.
Structural: Foundation wall reinforcement vs drag detail
Structural
Foundation plan reinforcement callout (#4 at 18" O.C.) vs wall detail at perpendicular rafter (threaded rod embed).
Plumbing: Hot water demand vs pipe sizing
Plumbing
Water demand calculator 99th percentile flow vs pipe size schedule and isometric callout conflict.
Architectural/Fire: Floor type fire rating vs fires topping system
Architectural
Floor type AA (3-HR) vs fires topping system F-rating (2 Hr vs 3 Hr) and assembly thickness conflict.
Architectural/Fire: Wood joist corridor floor depth vs fires topping
Architectural
Floor type JJ (7-1/4" depth) vs fires topping system requirement for 10 in. (254 mm) deep lumber.
Plumbing: Water demand calculator vs service calculations
Plumbing
Peak period demand flow and fixture count in calculator vs water/waste service calculation sheet conflict.
Plumbing: Fixture count building vs calculation sheet
Plumbing
Building apartment count and fixture groups in calculator vs water/waste service calculations (total FU) conflict.
Issue categories
More example findings
Architectural/Structural: Fire barrier wall at trash chute vs sectionArchitecturalCritical
Summary: Wall section at trash chute conflicts with fire barrier wall assembly detail (rim joist vs stud soffit framing).
Why it matters: This issue could cause code violations and may prevent plan approval for Commercial Office projects.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Fire barrier wall assembly at trash chute.
Architectural: Wardrobe detail vs floor plan referenceArchitecturalCritical
Summary: Detail reference and floor plan callout conflict for manager unit closet/wardrobe.
Why it matters: Failure to address this issue may result in construction delays and costly rework.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Wardrobe detail and plan reference consistency.
Architectural: Trash room door vs west elevationArchitecturalCritical
Summary: Plan shows double door from trash room to walkway; west elevation shows no door at same grid.
Why it matters: This coordination issue could lead to field conflicts and change orders in Commercial Office projects.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Trash room egress and elevation coordination.
Architectural/Structural/Plumbing: Floor assembly vs pipe penetration detailStructuralCritical
Summary: Floor type schedule (post-tensioned) vs typical non-metallic pipe penetration fastener detail conflict.
Why it matters: Addressing this issue before construction prevents costly rework and ensures code compliance.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Pipe penetration at concrete floor assembly.
Structural: Foundation wall reinforcement vs drag detailStructuralCritical
Summary: Foundation plan reinforcement callout (#4 at 18" O.C.) vs wall detail at perpendicular rafter (threaded rod embed).
Why it matters: This coordination issue could lead to field conflicts and change orders.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Foundation wall and drag detail coordination.
Plumbing: Hot water demand vs pipe sizingPlumbingCritical
Summary: Water demand calculator 99th percentile flow vs pipe size schedule and isometric callout conflict.
Why it matters: This issue could cause code violations and may prevent plan approval for Commercial Office projects.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Hot water demand and pipe sizing per UPC/CPC.
Architectural/Fire: Floor type fire rating vs fires topping systemArchitecturalCritical
Summary: Floor type AA (3-HR) vs fires topping system F-rating (2 Hr vs 3 Hr) and assembly thickness conflict.
Why it matters: Failure to address this issue may result in construction delays and costly rework.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Floor assembly fire rating and fires topping system.
Architectural/Fire: Wood joist corridor floor depth vs fires toppingArchitecturalCritical
Summary: Floor type JJ (7-1/4" depth) vs fires topping system requirement for 10 in. (254 mm) deep lumber.
Why it matters: This coordination issue could lead to field conflicts and change orders in Commercial Office projects.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Wood joist floor depth and fires topping assembly.
Plumbing: Water demand calculator vs service calculationsPlumbingCritical
Summary: Peak period demand flow and fixture count in calculator vs water/waste service calculation sheet conflict.
Why it matters: Addressing this issue before construction prevents costly rework and ensures code compliance.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Water demand calculator and service calculations consistency.
Plumbing: Fixture count building vs calculation sheetPlumbingCritical
Summary: Building apartment count and fixture groups in calculator vs water/waste service calculations (total FU) conflict.
Why it matters: This issue could cause code violations and may prevent plan approval for Commercial Office projects.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Fixture count and water demand calculator consistency.
Architectural: Stair geometry vs floor planArchitecturalCritical
Summary: Stair 1 second floor plan tread count and dimensions vs second floor plan stair callout conflict.
Why it matters: Failure to address this issue may result in construction delays and costly rework.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Stair geometry and plan consistency.
Structural: CIP wall reinforcement and embed detailStructuralHigh
Summary: Foundation CIP wall reinforcement callout vs drag detail threaded rod embed length conflict.
Why it matters: This coordination issue could lead to field conflicts and change orders.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: CIP wall reinforcement and drag detail.
Plumbing: Cold water pipe size vs demandPlumbingHigh
Summary: Cold water pipe size on isometric vs minimum required pipe size from water demand calculation conflict.
Why it matters: Addressing this issue before construction prevents costly rework and ensures code compliance.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Cold water pipe sizing per demand.
Architectural: Floor type schedule vs assembly detailArchitecturalHigh
Summary: Floor type structural depth and fire rating in schedule vs assembly detail and CBC reference conflict.
Why it matters: This issue could cause code violations and may prevent plan approval for Commercial Office projects.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Floor type schedule and assembly detail.
Mechanical: Ventilation and exhaust coordinationMechanicalHigh
Summary: Ventilation requirements and exhaust coordination across floor plans and mechanical schedules.
Why it matters: Failure to address this issue may result in construction delays and costly rework.
Suggested next step: Review drawings and specifications to resolve this conflict before construction begins.
RFI draft: Please clarify: Ventilation and exhaust coordination.
This is an anonymized example. Findings shown are excerpts for illustration. Actual project details have been modified to protect client confidentiality.
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