11.4 Project Close-Out, Guarantees, Warranties & Final Acceptance

Core Focus: Project closeout is the final phase of construction administration where all physical, financial, and legal commitments are formally concluded. Candidates must understand the stringent administrative requirements of Final Completion, the legal prerequisites for releasing final retainage (including lien releases and Consent of Surety via AIA Documents G706, G706A, and G707), the operation of the 1-year general correction period and plant guarantee periods, and the execution of 11-month warranty reviews and Post-Occupancy Evaluations (POE).

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1. Final Completion Requirements and Closeout Administration

While Substantial Completion grants the Owner beneficial use of the facility, Final Completion represents the complete, absolute fulfillment of every obligation under the Contract Documents. Reaching Final Completion requires the contractor to resolve two parallel tracks: physical site remediation and administrative document closeout.

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|                   THE TWO TRACKS OF PROJECT CLOSEOUT                    |
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| PHYSICAL SITE CLOSEOUT           | ADMINISTRATIVE & LEGAL CLOSEOUT      |
| - 100% punch list items verified | - As-Built Record Drawings           |
| - Final site cleaning & washdown | - Operation & Maintenance (O&M)      |
| - Removal of temporary trailers, | - Attic Stock / Extra Materials      |
|   fences, erosion controls, & sign| - AIA G706 (Affidavit of Payment)   |
| - Restoration of damaged areas   | - AIA G706A (Release of Liens)       |
| - Final operational test runs    | - AIA G707 (Consent of Surety)       |
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The Final Inspection Workflow

1. Contractor's Written Notice: The contractor conducts a self-inspection verifying that 100% of punch list items are complete, cleans the site, and submits formal written notice requesting a Final Inspection.
2. Landscape Architect's Re-Inspection: The landscape architect (accompanied by consulting civil, structural, and electrical engineers and the owner) walks the site to re-inspect every item on the punch list.
3. Resolution of Incomplete Items: If any punch list item remains incomplete, defective, or unacceptable:
   • The landscape architect notifies the contractor in writing, listing the uncompleted items.
   • Final payment is denied until all items are verified.
   • If the contractor neglects or refuses to complete the items within the contractual deadline, the Owner may, after providing a mandatory 10-day formal written notice under AIA A201 Section 2.5, carry out the work using an independent contractor and deduct the full cost from the remaining retainage balance.

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2. Essential Closeout Submittals

Before final payment can be certified, Division 01 General Requirements mandates that the contractor submit a complete package of project record documents:

1. Record Drawings ("As-Builts")

The contractor maintains a dedicated, clean set of prints on site to record all field deviations from design drawings daily in red ink. This includes:

• Subsurface Utilities: Actual horizontal dimensions and invert elevations of civil storm drainage pipes, catch basins, site domestic water lines, sanitary sewer laterals, and electrical conduits.
• Irrigation System Infrastructure: Exact dimensioned tie-ins (measured from two permanent surface landmarks, such as building corners or curb lines) to all buried remote control valves, quick couplers, isolation gate valves, wire splices, backflow preventers, and road crossing sleeves.
• Grading & Hardscape Adjustments: Unplanned field adjustments made to accommodate discovered rock outcroppings, utility conflicts, or tree roots.
• Landscape Architect's Responsibility: The landscape architect compiles the contractor's redline markups into final digital CAD/BIM Record Drawings, adding a clear professional disclaimer stating that recorded subsurface measurements reflect contractor field data.

2. Operation and Maintenance (O&M) Manuals

Bound, indexed operating manuals must be delivered to the Owner's maintenance staff covering:

• Irrigation Systems: Central satellite controller programming guides, winterization blow-out protocols, valve wiring schematics, spring startup procedures, and replacement nozzle charts.
• Site Electrical & Lighting: Low-voltage lighting transformer schedules, photodiode and astronomical timeclock programming, LED driver specifications, and lamp replacement part numbers.
• Water Features & Fountains: Pump curves, sand/cartridge filter backwash procedures, automated chemical dosing schedules, and winter drain-down instructions.

3. Extra Stock ("Attic Stock")

Specifications frequently require the contractor to furnish spare materials packaged in labeled containers for future maintenance repairs:

• Unit Pavers: Typically 3% to 5% extra pavers of each size, color, and finish blend
• Irrigation Heads: Spare rotor heads, spray bodies, and assorted nozzles (e.g., 5 of each type)
• Site Furnishings / Paint: 1 gallon of matching powder-coat touch-up paint for custom site gates and benches

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3. Financial and Legal Closeout: Lien Waivers & Surety Consent

Releasing the final retainage without following strict legal protocols exposes the Owner to catastrophic financial and legal liabilities. AIA contract conditions mandate four specific legal instruments before the landscape architect can certify the final Application for Payment:

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|               FINANCIAL CLOSEOUT LEGAL DOCUMENT TRIAD                   |
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| 1. AIA DOCUMENT G706:                                                   |
|    Contractor's Affidavit of Payment of Debts and Claims                |
|    - Sworn notarized statement that all payrolls, material bills, and   |
|      trade debts have been paid in full                                 |
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| 2. AIA DOCUMENT G706A:                                                  |
|    Contractor's Affidavit of Release of Liens                           |
|    - Sworn statement that all subcontractors and suppliers have         |
|      waived right to file mechanic's liens; backed by lien releases     |
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| 3. AIA DOCUMENT G707:                                                   |
|    Consent of Surety to Final Payment                                   |
|    - Critical legal authorization from bond surety company              |
|    - PREVENTS DISCHARGE OF SURETY BOND OBLIGATIONS                      |
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AIA Document G706 & G706A (Lien Protection)

• AIA Document G706 (Affidavit of Payment of Debts and Claims): The general contractor certifies under oath that all debts, payroll, material invoices, and equipment rentals associated with the project have been satisfied in full.
• AIA Document G706A (Affidavit of Release of Liens): Accompanies the G706, certifying that all sub-tier contractors and suppliers have executed releases of liens. The contractor must attach unconditional final lien waivers from all major subcontractors.

AIA Document G707 (Consent of Surety to Final Payment)

The most critical closeout document on bonded projects.

• Under surety law, retainage held by the owner represents collateral for the performance and payment bonds.
• If the Owner disburses final retainage without obtaining formal written consent from the surety company (via AIA Document G707), the surety's obligations under the bond are legally discharged.
• If an unpaid subcontractor subsequently files a valid mechanic's lien against the property, the Owner cannot seek recourse under the contractor's payment bond because the Owner improperly released the surety's collateral.

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4. Guarantees and Warranty Periods in Landscape Architecture

Candidates must master the distinct legal frameworks governing contractor general correction obligations versus specialized living plant material warranties.

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|                    COMPARISON OF WARRANTY STRUCTURES                    |
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| CONTRACTOR 1-YEAR CORRECTION      | PLANT MATERIAL GUARANTEE            |
| (AIA A201 Section 12.2.2)         | (Section 32 93 00 Specifications)   |
| - Duration: Exactly 1 year from   | - Duration: 1 calendar year or      |
|   date of Substantial Completion  |   1 complete growing season         |
| - Scope: All general workmanship, | - Scope: Trees, shrubs, groundcover |
|   pavements, walls, drainage, pipe| - Requirement: 100% replacement     |
| - Obligation: Prompt repair/patch |   including labor, plant, & mulch   |
|   at contractor's sole expense    | - Exclusions: Acts of God, neglect  |
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Contractor's 1-Year General Correction Period (AIA A201 Section 12.2.2)

The General Conditions establish a specific, one-year contract remedy: if, within one year after the date of Substantial Completion, any work is found to be non-conforming or defective, the contractor must promptly correct it after receipt of written notice from the owner.

• Legal Distinction: The 1-year correction period is a specific contractual mechanism requiring the contractor to return and fix work; it is not a statute of limitations. The owner retains the legal right under common law to sue for latent defects (hidden defects not discoverable by reasonable inspection) within the state's statutory limitation and repose periods (typically 4 to 10 years).

Plant Material Guarantees and Establishment

Unlike inanimate construction products, living plants require specialized warranty terms in Section 32 93 00:

• Guarantee Duration: Standard landscape specifications require a guarantee of one full calendar year or one full growing season (e.g., April 1 through October 31) following Substantial Completion.
• 100% Replacement Clause: Any tree, shrub, or groundcover that is dead, dying, or exhibits more than 25% branch dieback must be removed and replaced with a healthy specimen matching the original size and species specification, including all labor, soil amendments, and mulch, at the contractor's sole expense.
• Replacement Warranty Extension: Most robust specifications require replaced plants to carry a new guarantee extending for one full growing season from the date of replanting.
• Warranty Exclusions: The contractor is contractually exempted from plant replacement liability if damage results from:
  • Documented extreme acts of God (floods exceeding 100-year design, tornadoes, unprecedented freeze events)
  • Vandalism, vehicular collisions, or animal grazing
  • Owner neglect: Failure of the owner to provide adequate watering, fertilizing, or pest management after maintenance responsibilities shifted at Substantial Completion (burden of proof rests with contractor).

Extended Manufacturer Warranties

Certain site specialties carry manufacturer warranties extending far beyond the 1-year contractor warranty:

• LED site lighting fixtures and drivers: 5 to 10 years
• Commercial playground structures: 10 to 15 years
• Plaza deck elastomeric waterproofing membranes: 15 to 20 years
• Segmental retaining wall concrete blocks: 25 years to lifetime

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5. The 11-Month Warranty Walk-Through & POE

The 11-Month Warranty Inspection

A crucial risk management best practice is conducting an 11-month warranty walk-through. Scheduled approximately 30 days prior to the expiration of the contractor's 1-year correction period, this inspection allows the team to audit all completed work:

• Attendees: Landscape Architect, Owner, and General Contractor
• Audit Scope: Inspecting concrete pavements for unbonded topping slabs or spalling, joint sealants for cohesion failure, unit pavers for settlement rutting, retaining walls for movement or weep hole blockage, and assessing the vitality of all planted trees.
• Action: Compiling a formal written warranty punch list and serving it to the contractor prior to day 365, legally compelling the contractor to rectify all documented defects before contractual warranty liability expires.

Post-Occupancy Evaluation (POE)

A Post-Occupancy Evaluation is a systematic, structured evaluation of a completed site project conducted after it has been occupied and utilized for 6 months to 2 years. Unlike the 11-month warranty walk-through (which focuses strictly on construction defects), a POE evaluates functional, environmental, and behavioral performance:

• Do pedestrian circulation paths match actual user desire lines, or have visitors worn "cow paths" through turf beds?
• Are social seating nodes utilized comfortably across seasons, or do microclimatic winds and intense solar heat prevent use?
• Does the bioretention swale drain within the required 48-hour hydraulic residence time?
• Are maintenance costs and irrigation water consumption aligning with initial design projections?

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6. Summary of Closeout Documents Matrix

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7. Real-World Case Scenario: The Missing Consent of Surety

The Situation: On a $2.5 million municipal sports park project, the contractor completes all physical punch list items 45 days after Substantial Completion. The contractor submits a final Application for Payment (AIA G702) requesting the release of the remaining 10% retainage ($250,000). The package includes AIA Document G706 (Affidavit of Payment) and G706A (Release of Liens). However, the contractor does not include AIA Document G707 (Consent of Surety to Final Payment), stating that the surety agent is on vacation and that the bond will remain in effect anyway. Eager to close the project books before the municipal fiscal year ends, the municipal project manager directs the landscape architect to certify the payment, and the city treasurer issues the $250,000 check.

The Crisis: Three weeks after retainage is disbursed, the electrical and irrigation subcontractors file formal mechanic's liens totaling $180,000 against the municipal property. The General Contractor has declared Chapter 7 bankruptcy and dissolved all company assets. The municipality submits a formal claim against the contractor's payment bond to compel the surety to pay off the subcontractors.

Legal Outcome:

• The surety company formally denies the claim and rejects all liability.
• The surety proves in court that the municipality violated the bond agreement by disbursing the $250,000 retainage without the surety's written consent (AIA G707).
• Because retainage is legal collateral that protects the surety, the unauthorized release of retainage discharged the surety from its bond obligations.
• The municipality is forced to pay the $180,000 directly out of city emergency contingency funds to clear the property liens. The landscape architect is named in an administrative inquiry for failing to advise the city against certifying final payment without the mandatory AIA G707 form.