SQUARE FOOT/SQUARE METER ESTIMATING HOMEWORK This homework is individual effort. That is, it is your work and your work alone. You may not collaborate with any other person (e.g. fellow students, former students, or coworkers). You may not use the work of former students. You may consult with your instructors. However, the homework is open book. You may use any course materials provided as well as any other authoritative economics or cost estimating text, to include on-line materials. Instructions: Complete the following homework problems on this paper. Once complete, load your answers into the Canvas quiz titled Cost Estimating Homework. The system will automatically grade your work and provide you feedback. Use the references provided with this assignment, even if newer references have been published in the Whole Building Design Guide. Fictional Scenario based on several real-world instructor experiences: Malmstrom AFB has been hit by a tornado and your flightline facilities have taken a tremendous hit. It is in the first 72 hours and it is your turn in the Unit Control Center. Your aircraft operations facility has been destroyed. Initial reports are that most of the facility is now about three miles to the east. What remains is no longer safe. The squadron is hurriedly preparing the notifications to higher headquarters and congress on costs to replace the destroyed facilities. You must develop the construction cost for a new 27,600 SF, Aircraft Operations Facility (no tower) for FY28 (Midpoint of construction of Oct 2028) at Malmstrom Air Force Base (zip 59402). This estimate will be used for initial planning and is not the final programming estimate. Thus you will develop it using the Square Foot/Square Meter method. Search and Recovery Teams at Tinker AFB following a base Tornado, 1999. No copyright. Classroom use only. PART A SF/SM ESTIMATE FOR CONSTRUCTION NOTE: This homework employs several points. When you see a , do NOT use the answer that you previously calculated. The , is not the \"right\" answer, it just makes sure that a mistake doesn't travel through your entire HW. Step 1: Identify Historical Data From the UFC, what is the Guidance Unit Cost ($/SF) of an Aircraft Operations Facility (no tower). 1. | PRESUME you found a GUC of $600/SF Using the reset Guidance Unit Cost above, multiply by the planned size to determine the Unadjusted Cost for the Primary Facility. os Step 2. Adjust the costs (Size, Location, Time, etc.) From the size ratio (planned size/reference size), determine the closest adjustment factor that applies from Table 2-1 of UFC 3-730-01. Retain the same number of significant digits as the UFC. 3. Size Adjustment Factor = From the UFC, what is Malmstrom AFB's Area Cost Factor? Again, retain the same number of significant digits as the UFC - do not round. (Hint: search for the zip code) 4. MILCON Area Cost Factor = From the UFC, what is the Escalation factor for construction occurring in FY 2028? (Midpoint of the Construction: October 2028, reference point Oct 2023). Again, retain the same number of significant digits as the UFC - do not round. 5. Escalation Factor = What markup will you use for Design Contingency per UFC 3-730-01, Table 2-5? This project notification is well in advance of any real planning work or design and is considered Standard Design or Routine Technology. Again, retain the same number of significant digits as the UFC - do not round. 6. Design Contingency = Revised May 2024 |] Presume you determined the following factors: Unadjusted Cost of the Primary Facility (from #2): $18,000,000.00 Size Adj. = 1.055, ACF = 1.06, Escalation = 1.1234, and Design Cont. = 1.08 These are the only adjustment factors we will use in this analysis (the district not being historic, and no site sensitivity requirements). Determine the Adjusted Primary Facility Cost using the reset Unadjusted Cost and the reset Adjustment Factors. 7. Adjusted Primary Facility Cost = Step 3. Apply the DoD 'Markup' Factors. ) For your Adjusted Primary Facility Cost, use $25,000,000.00. Now we need to apply the Markups. The markups for MILCON can be found in DAFI 32- 1020 and the business rules. For our purposes, we will use the following Markups: MILCON Cybersecurity: $250,000 for facilities smaller than 50,000 SF MILCON Construction Contingency: 5% or a markup of 1.05 MILCON Supervision, Inspection, and Overhead for a CONUS location of 6.5% or 1.065 Design Cost for Design-Build Project of 4% or 1.04 Using the provided markup factors and the reset Adjusted Primary Facility Cost, what is the Final Primary Facility Cost? 8. Final Primary Facility Cost: Step 4. Supporting Facilities | Presume your Final Primary Facility Cost is $30,000,000. For Supporting Facilities, you have not sited this facility yet, nor have you conducted a planning and development charrette. For our purposes, we will estimate supporting facilities using the average percentage of supporting facility costs experienced by the Air Force. Reference the "Square Foot/Square Meter Multipliers for General Supporting Facilities in Facility Construction\" handout to find the average Supporting Facility percentage for 'Aircraft Operations Facility without Tower.' Using the reset Final Primary Facility Cost above, and the Supporting Facility percentage for this facility type from the handout, what is the Final Total Cost of the facility? (Remember, do NOT simply multiply the Primary Facility Cost by the Supporting Facility Percentage. That will be incorrect. Follow the method taught in class. ) 9. Revised May 2024 Step 5. Risk Analysis | Presume your Final Total Cost is $35,000,000 Using the reset Final Cost (above) and the ranges of accuracy associated with a Square Foot/Square Meter estimate, what is the appropriate range you should communicate with this estimate? 10. Upper Boundary (+50%) 11. Lower Boundary (-30%) PART B: SF/SM ESTIMATE FOR REPAIR/ ALTERATIONS Change the scenario, you need to replace the mechanical system in the Large (>16,000 SF) High Bay (>16') General Purpose Warehouse in 2028. You have already conducted the initial analysis and determined that the Adjusted Primary Facility Cost for a new Wing Headquarters in 2028 would be $40,000,000. You determined the following information based on your scoping skills: The facility type is High Bay General Purpose Warehouse This project requires: 30% replacement of interior construction (C10) 30% replacement of interior finishes (C30) 10% replacement of plumbing (D20) 100% replacement of all HVAC (D30) 10% replacement of fire protection systems (D40) 10% replacement of electrical (D50). There will be NO work on the foundations, superstructure, exterior closure, roofing, conveying, equipment, furnishings, or special construction. Let's determine the repair/alteration cost. Step 1 Determine the Adjusted Primary Facility Cost for the year of the proposed alteration project You've already been given this: $40,000,000 (celebrate the little victories) Step 2 Determine Removal/Demolition Costs Find the Removal/Demolition Cost factor by filling in the table below based on the information above, plus UFC 3-730-01 Table 4-1 and Appendix C. Note: to determine the appropriate value, be sure to express every percent as a decimal (e.g. 100% = 1.00), except for the values found in Appendix C. Ratio of Total System Cost Installation | to Facility (Table 6) | Presume your Removal/Demo Percentage is 4.0000% What are the Removal/Demo Costs based on the Adjusted Primary Facility cost and the reset Removal/Demo Cost Factor above? 13. Removal/Demo Cost Revised May 2024 Step 3 Determine the New Work (Replacements) Costs Find the New Work (Installation) Cost factor by filling in the table below based on the information above and Appendix C. Note: to determine the appropriate value, be sure to express every percent as a decimal (e.g. 100% = 1.00), except for the values found in Appendix C. System % of the Ratio of System Cost | Total (multiply all system altered to Facility Cost columns) Appendix C A10 Foundations | 0.00 | 14.97% 0.00% poset poewmet fT porn [| ke #14: TOTAL New Work Cost Percentage P| | Presume your New Work Percentage is 18.0000% What are the New Work Costs based on the Adjusted Primary Facility cost and the reset New Work Cost Percentage above? 15. New Work Cost: For the purposes of our scenario, the Warehouse will be entirely closed for the duration of the project. So no special renovation adjustments will apply. If, however, there was a need to keep a portion of the facility open while the rest was renovated, we'd need to judge the impacts of dust protection, equipment limitations, storage limitations, protection of work, and shift work. Final Step. Apply the DoD 'Markup' Factors (Cybersecurity, SIOH, Contingency, and Design-Build) - as appropriate. | Presume the Subtotal Repair cost is $10,000,000 (found by adding the Removal/Demo Cost with the New Work Cost) This project is a repair in the O&M program. So we will consider those 'markups' appropriate to an O&M project. Determine the appropriate Markups from the following paragraph. Note: For O&M, organic (in-house) SIOH does not apply, nor does construction contingency. We will presume that this project will be entirely designed before bidding. Thus only 2.5% cybersecurity applies. With the reset Subtotal Repair cost, multiply by the applicable markups above to determine the Total Repair Costs for this project. 16. Total Cost for O&M Project