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Affordable Senior Housing: 325 Issues Found

An anonymized affordable senior housing plan set review found drawing index, civil, and architectural coordination issues.

154
Issues found
6
Disciplines
2
Codes referenced
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Key findings

Drawing Index Audit: 13 missing, 60 mismatched out of 106 sheets

General

Critical

106 index entries | 33 perfect matches | 60 mismatched | 13 missing Mismatched (60): O.OM: Expected: COVER SHEET | Actual: COVER SHEET (p1) ASD1.0: Expected: ARCHITECTURAL SITE DETAILS | Actual: Site details and signage (p42) ASD1.1: Expected: ARCHITECTURAL SITE DETAILS | Actual: Pavilion and shelter details (p43)...

Turning space note allows 4'-0' x 5'-0' instead of ADA-required 60' turning space

Civil

Critical

The drawings state that when turning space is constrained, it 'shall be 4'-0' MIN BY 5'-0' MIN.' ADA requires a turning space that is either a 60-inch minimum diameter circle or a T-shaped space within a 60-inch minimum square. A 4'-0' (48-inch) dimension does not meet the 60-inch minimum turning space requirement.

Toilet room widths shown under 60' cannot accommodate required 60' turning space

Architectural

Critical

The dimension plan shows the two toilet rooms sized with widths called out as 4'-2' and 4'-4 1/2'. ANSI/ICC A117.1 requires an accessible toilet room to provide a turning space within the room per Section 603.2.1, which must be either a 60-inch diameter circle (Section 304.3.1) or a T-shaped turning space that fits within a 60-inch minimum...

Guard/handrail at top of retaining wall shown ~19' high, below IBC 42' minimum for guards

Architectural

Critical

The drawings indicate a fall-protection element is required at the top of retaining walls when wall height exceeds 30 inches. However, the provided “HANDRAIL ON RETAINING WALL” detail shows the rail/guard height as approximately 1'-7 3/8' (19 3/8') above the “TOP OF WALL,” which is far below the IBC minimum guard height of 42 inches where...

Accessibility drawings reference UFAS instead of ICC A117.1 required by IBC 1102.1

Architectural

Critical

The sheet’s accessibility plans/details are explicitly labeled as UFAS-based (e.g., unit plans titled “UFAS 1-BR ACCESSIBILITY PLAN” and a door maneuvering-clearance graphic labeled “PER UFAS”). IBC 2021 requires accessibility to be designed and constructed in accordance with the code and ICC A117.1, so using UFAS as the governing accessibility...

Beam penetration detail uses wood fireblocking instead of a listed firestop system for a fire-resistance-rated wall

Architectural

Critical

The detail for a beam penetrating a 1-hour fire-rated stair wall states the required protection is provided with wood fireblocking ('(1) LAYER OF 2X TIGHT FITTING FIRE BLOCKING') around the beam. IBC requires penetrations of fire-resistance-rated wall assemblies to be protected with a listed penetration firestop system installed per its listing...

Conflicting labeling on LINE - J: storm drain structures (“STM”) shown, but alignment is labeled “SANITARY SEWER LINE”

Civil

Critical

On sheet C505 (Storm Drain Lines “I-K” - Plan and Profile), LINE - J includes storm drainage structure callouts (e.g., “STM: AI D3.1” and “STM: CCGI D3”) and a storm pipe note (12' HDPE @ 0.50%). In the same LINE - J stationing/label area, the text “SANITARY SEWER LINE” is also shown. This is a conflicting/ambiguous designation that can be...

6-inch sanitary sewer shown at 1.00% slope, slightly below IPC minimum for 3–6 inch drainage piping

Civil

Critical

The sanitary sewer plan shows multiple 6-inch sanitary sewer segments labeled at 1.00% slope. IPC Table 704.1 requires horizontal drainage piping 3 inches through 6 inches to be sloped not less than 1/8 inch per foot (≈1.04%). Therefore, the 6-inch segments labeled at 1.00% are below the IPC minimum slope.

Water heater T&P relief discharge shown piped to floor drain (must discharge via air gap; no direct connection)

Plumbing

Critical

The water heater mounting detail instructs that the relief valve discharge be 'piped' to a floor drain. IPC 2021 requires that T&P/pressure relief discharge piping (1) not be directly connected to the drainage system and (2) discharge through an air gap in the same room as the water heater. A floor drain is part of the drainage system; piping...

Jurisdiction/standards conflict: City of Cullman vs City of Huntsville referenced across sheets

Civil

Critical

C300 includes City of Cullman approval/certification language and references City of Cullman-adopted utility specifications, while C800 states design is 'in accordance with the standards of the City of Huntsville' and also references 'HUNTSVILLE CITY STANDARDS' in pavement section notes. Additionally, C300 includes an engineer certification...

Issue categories

Architectural
Egress, accessibility, room layouts, building code compliance, and finish specifications
Structural
Structural connections, load paths, foundation design, and structural code compliance
Mechanical
HVAC systems, ventilation, exhaust, and mechanical code compliance
Plumbing
Plumbing fixtures, drainage, venting, water supply, and plumbing code compliance
Civil
Site grading, utilities, stormwater, and civil coordination
General
Drawing index, coordination, and general plan review findings

More example findings

Drawing Index Audit: 13 missing, 60 mismatched out of 106 sheets
General
Critical

Summary: 106 index entries | 33 perfect matches | 60 mismatched | 13 missing Mismatched (60): O.OM: Expected: COVER SHEET | Actual: COVER SHEET (p1) ASD1.0: Expected: ARCHITECTURAL SITE DETAILS | Actual: Site details and signage (p42) ASD1.1: Expected: ARCHITECTURAL SITE DETAILS | Actual: Pavilion and shelter details (p43)...

Why it matters:

Suggested next step:

RFI draft: 📄 0.0M Schedule Text: DRAWING INDEX — page 1 --- 📄 C000 Schedule Text: DRAWING INDEX — page 2 --- 📄 S100 Schedule Text: DRAWING INDEX — page 45 --- 📄 0.0 Schedule Text: DRAWING INDEX — page 63 --- 📄 0.0C Schedule Text: DRAWING INDEX — page 98 --- 📄 0.0MB Schedule Text: DRAWING INDEX —...

Turning space note allows 4'-0' x 5'-0' instead of ADA-required 60' turning space
Civil
Critical

Summary: The drawings state that when turning space is constrained, it 'shall be 4'-0' MIN BY 5'-0' MIN.' ADA requires a turning space that is either a 60-inch minimum diameter circle or a T-shaped space within a 60-inch minimum square. A 4'-0' (48-inch) dimension does not meet the 60-inch minimum turning space requirement.

Why it matters: If constructed per this note, curb ramp top/sidewalk turning areas could be noncompliant, potentially requiring demolition/reconstruction of concrete to achieve compliant turning space and delaying acceptance/closeout.

Suggested next step: Revise the standard note/detail to require ADA-compliant turning space (60' diameter minimum or T-shaped within 60' square minimum), and confirm which curb ramp conditions on this project require a turning space versus only a 406.4 landing.

RFI draft: Revise the standard note/detail to require ADA-compliant turning space (60' diameter minimum or T-shaped within 60' square minimum), and confirm which curb ramp conditions on this project require a turning space versus only a 406.4 landing.

Toilet room widths shown under 60' cannot accommodate required 60' turning space
Architectural
Critical

Summary: The dimension plan shows the two toilet rooms sized with widths called out as 4'-2' and 4'-4 1/2'. ANSI/ICC A117.1 requires an accessible toilet room to provide a turning space within the room per Section 603.2.1, which must be either a 60-inch diameter circle (Section 304.3.1) or a T-shaped turning space that fits within a 60-inch minimum...

Why it matters: This is a fundamental accessibility dimensional conflict in the toilet room layout. If constructed per plan, it will fail accessibility inspection and require rework (reframing/relocating fixtures/doors), causing schedule delays and change-order cost.

Suggested next step: Revise the toilet room plans to demonstrate a compliant turning space within each required accessible toilet room (either 60' diameter circle or T-shaped within a 60' square) per A117.1-2009 603.2.1 and 304.3. Provide finished (not stud-face) clear dimensions and show the turning space diagram on plan.

RFI draft: Revise the toilet room plans to demonstrate a compliant turning space within each required accessible toilet room (either 60' diameter circle or T-shaped within a 60' square) per A117.1-2009 603.2.1 and 304.3. Provide finished (not stud-face) clear dimensions and show the turning space diagram...

Guard/handrail at top of retaining wall shown ~19' high, below IBC 42' minimum for guards
Architectural
Critical

Summary: The drawings indicate a fall-protection element is required at the top of retaining walls when wall height exceeds 30 inches. However, the provided “HANDRAIL ON RETAINING WALL” detail shows the rail/guard height as approximately 1'-7 3/8' (19 3/8') above the “TOP OF WALL,” which is far below the IBC minimum guard height of 42 inches where...

Why it matters: This is a life-safety code violation and will likely be rejected during plan review/field inspection, requiring redesign and replacement of installed railing/guard, causing schedule delays and rework costs (fabrication and reinstall).

Suggested next step: Confirm whether the top-of-wall element is intended to function as an IBC guard. If so, revise the detail to provide a code-compliant guard height (minimum 42' measured from the adjacent walking surface) at all locations where the grade drop exceeds 30'. Provide updated dimensions and typical sections for guard height relative to finished...

RFI draft: Confirm whether the top-of-wall element is intended to function as an IBC guard. If so, revise the detail to provide a code-compliant guard height (minimum 42' measured from the adjacent walking surface) at all locations where the grade drop exceeds 30'. Provide updated dimensions and typical...

Accessibility drawings reference UFAS instead of ICC A117.1 required by IBC 1102.1
Architectural
Critical

Summary: The sheet’s accessibility plans/details are explicitly labeled as UFAS-based (e.g., unit plans titled “UFAS 1-BR ACCESSIBILITY PLAN” and a door maneuvering-clearance graphic labeled “PER UFAS”). IBC 2021 requires accessibility to be designed and constructed in accordance with the code and ICC A117.1, so using UFAS as the governing accessibility...

Why it matters: If the project is reviewed/enforced under IBC 2021, plan review and permitting can be delayed and the accessibility layout/details may require redesign to ICC A117.1 (or documented acceptance of an approved alternative standard) before construction.

Suggested next step: Confirm the accessibility standard required by the authority having jurisdiction for this project. If IBC 2021 applies, revise these accessibility plans/details to comply with ICC A117.1 (or provide written justification/approval showing UFAS is acceptable as an equivalent standard for this project).

RFI draft: Confirm the accessibility standard required by the authority having jurisdiction for this project. If IBC 2021 applies, revise these accessibility plans/details to comply with ICC A117.1 (or provide written justification/approval showing UFAS is acceptable as an equivalent standard for this...

Beam penetration detail uses wood fireblocking instead of a listed firestop system for a fire-resistance-rated wall
Architectural
Critical

Summary: The detail for a beam penetrating a 1-hour fire-rated stair wall states the required protection is provided with wood fireblocking ('(1) LAYER OF 2X TIGHT FITTING FIRE BLOCKING') around the beam. IBC requires penetrations of fire-resistance-rated wall assemblies to be protected with a listed penetration firestop system installed per its listing...

Why it matters: If constructed as shown, the stair fire-resistance-rated wall could be considered noncompliant at the beam penetration during inspection, requiring removal of finishes and retrofit with a listed firestop system (significant rework, schedule impacts, and potential life-safety concern due to compromised fire barrier performance).

Suggested next step: Provide the specific listed through-penetration firestop system (e.g., UL system) for the beam penetration through the 1-hour rated wall, including required annular space, backing materials, sealants/mineral wool, and installation requirements to maintain the wall rating. Revise the detail to call out the listed system and installation per...

RFI draft: Provide the specific listed through-penetration firestop system (e.g., UL system) for the beam penetration through the 1-hour rated wall, including required annular space, backing materials, sealants/mineral wool, and installation requirements to maintain the wall rating. Revise the detail to...

Conflicting labeling on LINE - J: storm drain structures (“STM”) shown, but alignment is labeled “SANITARY SEWER LINE”
Civil
Critical

Summary: On sheet C505 (Storm Drain Lines “I-K” - Plan and Profile), LINE - J includes storm drainage structure callouts (e.g., “STM: AI D3.1” and “STM: CCGI D3”) and a storm pipe note (12' HDPE @ 0.50%). In the same LINE - J stationing/label area, the text “SANITARY SEWER LINE” is also shown. This is a conflicting/ambiguous designation that can be...

Why it matters: If construction follows the “SANITARY SEWER LINE” label and ties storm drainage into a sanitary sewer intended for sewage only, it would conflict with IPC 1101.3 and could trigger AHJ rejection and redesign/re-permitting and potential rework of underground utilities. Even if it is only a labeling error, the conflict creates a high risk of...

Suggested next step: Confirm whether LINE - J is intended to be storm drainage or sanitary sewer. If it is storm drainage, revise the plan/profile labeling to remove/clarify the “SANITARY SEWER LINE” label from the LINE - J alignment. If any portion is intended to connect to sanitary sewer, revise the design so storm water discharges to an approved storm disposal...

RFI draft: Confirm whether LINE - J is intended to be storm drainage or sanitary sewer. If it is storm drainage, revise the plan/profile labeling to remove/clarify the “SANITARY SEWER LINE” label from the LINE - J alignment. If any portion is intended to connect to sanitary sewer, revise the design so...

6-inch sanitary sewer shown at 1.00% slope, slightly below IPC minimum for 3–6 inch drainage piping
Civil
Critical

Summary: The sanitary sewer plan shows multiple 6-inch sanitary sewer segments labeled at 1.00% slope. IPC Table 704.1 requires horizontal drainage piping 3 inches through 6 inches to be sloped not less than 1/8 inch per foot (≈1.04%). Therefore, the 6-inch segments labeled at 1.00% are below the IPC minimum slope.

Why it matters: Undersloped gravity sanitary sewer piping can lead to inadequate scouring velocity, increased risk of solids deposition, blockages, and potential failures during acceptance testing/inspection, which can require regrading and pipe reinstallation after rough utility installation.

Suggested next step: Confirm these 6-inch lines are intended to operate as gravity sanitary sewer. If gravity, revise plan to provide minimum slope per IPC Table 704.1 (or revise pipe sizing/layout as needed) and update corresponding inverts/structure data accordingly.

RFI draft: Confirm these 6-inch lines are intended to operate as gravity sanitary sewer. If gravity, revise plan to provide minimum slope per IPC Table 704.1 (or revise pipe sizing/layout as needed) and update corresponding inverts/structure data accordingly.

Water heater T&P relief discharge shown piped to floor drain (must discharge via air gap; no direct connection)
Plumbing
Critical

Summary: The water heater mounting detail instructs that the relief valve discharge be 'piped' to a floor drain. IPC 2021 requires that T&P/pressure relief discharge piping (1) not be directly connected to the drainage system and (2) discharge through an air gap in the same room as the water heater. A floor drain is part of the drainage system; piping...

Why it matters: This is a life-safety/inspection-critical installation item for storage water heaters. If installed as detailed, it is likely to fail plumbing inspection and require rework of the relief discharge piping and/or receptor configuration, causing schedule delays and additional cost.

Suggested next step: Revise the water heater detail to explicitly show the T&P/relief discharge terminating through an air gap in the same room (not directly connected to the floor drain/drainage piping). Indicate a compliant termination point and termination elevation relative to the receptor/floor per IPC 504.6.

RFI draft: Revise the water heater detail to explicitly show the T&P/relief discharge terminating through an air gap in the same room (not directly connected to the floor drain/drainage piping). Indicate a compliant termination point and termination elevation relative to the receptor/floor per IPC 504.6.

Jurisdiction/standards conflict: City of Cullman vs City of Huntsville referenced across sheets
Civil
Critical

Summary: C300 includes City of Cullman approval/certification language and references City of Cullman-adopted utility specifications, while C800 states design is 'in accordance with the standards of the City of Huntsville' and also references 'HUNTSVILLE CITY STANDARDS' in pavement section notes. Additionally, C300 includes an engineer certification...

Why it matters: Using the wrong jurisdiction’s standards/certifications can cause plan review rejection, incorrect design criteria/material requirements, and field disputes over which city standard details/specifications govern construction.

Suggested next step: Confirm the governing jurisdiction/standards for this project (Cullman vs Huntsville), and update all general notes, certifications, and standards references on C300 and C800 so they consistently reference the correct city and applicable standards.

RFI draft: Confirm the governing jurisdiction/standards for this project (Cullman vs Huntsville), and update all general notes, certifications, and standards references on C300 and C800 so they consistently reference the correct city and applicable standards.

Junction box detail limits pipe sizes to 12–24 in (and shows 1'-0' max pipe dia), but storm plan uses JB with 30 in...
Civil
Critical

Summary: The storm drain plan includes a junction box with 30' storm pipes (example: 'STM: 48' x 48' JB B3' with 'INV IN: N 800.13 30'' and 'INV OUT: SW 800.13 30''). The Structure Legend ties JB to standard detail '1/805 JB JUNCTION BOX'. But the referenced junction box detail’s General Notes state: 'MAXIMUM INTERIOR SIZE OF BOX IS 4'-0' X 4'-0'...

Why it matters: This creates a constructability and design compliance risk: a contractor may build/use the standard JB detail that is not intended for 30' connections, potentially requiring a larger/specially designed structure, different wall thickness/openings, and revised reinforcement/geometry.

Suggested next step: Provide the correct junction box detail/design criteria for JBs receiving 30' storm pipes (e.g., B3), including required interior dimensions and wall/opening details. Alternatively, revise the storm plan to use a structure type/detail that accommodates 30' pipes and update the Structure Legend/detail references accordingly.

RFI draft: Provide the correct junction box detail/design criteria for JBs receiving 30' storm pipes (e.g., B3), including required interior dimensions and wall/opening details. Alternatively, revise the storm plan to use a structure type/detail that accommodates 30' pipes and update the Structure...

Junction box detail shows “1'-0' MAX PIPE DIA”, but storm plan junction box A2 includes 15' and 18' pipes
Civil
Critical

Summary: The storm plan calls for a junction box with multiple pipes including 15' inlets and an 18' outlet: “STM: J BOX A2 … INV IN: W 801.84 15' … INV OUT: S 801.32 18'”. The structure legend indicates junction boxes use the referenced detail “1/805 JB JUNCTION BOX”. On the referenced junction box detail, the section notes a maximum pipe size...

Why it matters: If the standard junction box detail is used as-is, the structure opening/geometry may not accommodate the planned storm pipe diameters at J BOX A2, leading to construction delays, re-detailing, or field changes that can compromise structural integrity and watertightness.

Suggested next step: Confirm the intended junction box standard for J BOX A2 with 15' and 18' storm pipes. Provide a corrected junction box detail (or alternate structure detail) that accommodates the plan pipe sizes, or revise the plan to match the junction box detail limitations.

RFI draft: Confirm the intended junction box standard for J BOX A2 with 15' and 18' storm pipes. Provide a corrected junction box detail (or alternate structure detail) that accommodates the plan pipe sizes, or revise the plan to match the junction box detail limitations.

Building C overall length dimension mismatch (216'-2' vs 212' - 2')
Architectural
Critical

Summary: The architectural floor plan for Building C shows an overall length of 212' - 2', while the structural foundation plan and 2nd floor framing plan show an overall length of 216'-2'. The structural 3rd floor framing plan also shows 212'-2', creating an internal inconsistency within the structural set as well.

Why it matters: A 4'-0' discrepancy in the overall building length can shift foundation walls/steps, bearing lines, unit layouts, stair openings, and any pre-manufactured framing/truss packages. This can cause major constructability conflicts and rework if not resolved before layout and fabrication.

Suggested next step: Confirm the correct overall Building C length (dimension reference points included) and revise/coordinate the architectural plan and all structural plans (foundation and all framing levels) so the overall length is consistent across sheets.

RFI draft: Confirm the correct overall Building C length (dimension reference points included) and revise/coordinate the architectural plan and all structural plans (foundation and all framing levels) so the overall length is consistent across sheets.

UL design mismatch: drawing shows Design No. U305 but specification shows Design No. U341
Architectural
Critical

Summary: The drawing sheet provides UL “Design No. U305”. The project specification content instead identifies “Design No. U341”. These are different UL assemblies; the drawings should not direct construction to a different UL design than the one identified in the specification.

Why it matters: If the contractor builds the assembly based on U305 details while the project basis is U341, the constructed assembly may not match the tested/listed design referenced for compliance, creating fire-resistance and inspection/approval risk.

Suggested next step: Confirm which UL design is required for the project (U341 per specification vs U305 shown on the drawing sheet) and revise the gypsum board assembly details to match the specified UL design, or revise the specification if U305 is intended.

RFI draft: Confirm which UL design is required for the project (U341 per specification vs U305 shown on the drawing sheet) and revise the gypsum board assembly details to match the specified UL design, or revise the specification if U305 is intended.

General note allows 0.50' vertical discontinuities at curb ramps where ADA requires transitions be at same level
Civil
High

Summary: The drawings permit vertical surface discontinuities up to 0.50 inch. ADA curb ramp criteria requires transitions at curb ramps to walks, gutters, and streets to be at the same level, which conflicts with allowing a 0.50 inch vertical discontinuity at these transitions.

Why it matters: If interpreted literally during construction/inspection, this can result in a curb ramp lip at the gutter/street/sidewalk transition that fails ADA inspection, requiring grinding or replacement of curb ramp concrete and causing schedule impacts.

Suggested next step: Clarify/revise the vertical discontinuity note to state that curb ramp transitions to walks/gutters/streets must be constructed flush (same level) per ADA 406.2, and that the 0.50' discontinuity tolerance does not apply at curb ramp transitions.

RFI draft: Clarify/revise the vertical discontinuity note to state that curb ramp transitions to walks/gutters/streets must be constructed flush (same level) per ADA 406.2, and that the 0.50' discontinuity tolerance does not apply at curb ramp transitions.

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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