BUDGETS Flashcards
TOP DOWN Budgeting:
- start with gross fee for project
- formula driven
- very accurate if based on firm historical project data
BOTTOM UP budgeting:
- starts with the hourly fee
- break project down into individual tasks and assign amount of work needed
- (best to use top down as a base and work back up) / use a combination of both.
4 methods for Cost estimating:
- order of magnitude / project comparison method -whole building
- unit of measure - sf price
- elemental methods / assemblies/systems - systems priced
- quantity survey method/ unit price - actual pricing
Relationship of Project Budget to Efficiency
Gross SF are the underlying common factor.
E = NSF / GSF
B = $ per sf * GSF
Determine land value: (4)
Comparison Method: compared to other similar parcels (can be applied to all categories of use) and is the most accurate if current data is available.
Development Method: when comparisons aren’t available, use estimates to determine the selling price of lot, cost to develop, time to develop, and net sale price.
Residual/Income Approach Method: used in highly developed areas by estimating potential income from improvements that yield the highest return (highest & best use)
Allocation Method: used to determine value of improved properties by deducting the value of site improvements to get the value of the land.
Gross Area (Programming & Zoning)
Floor area of a building within the building envelope, measured to the exterior face of wall
(IBC: measured to the interior face of wall.)
Rentable Area
Floor area of a building to be assigned to a tenant as a basis for rent calculation. Rentable area (measured from inside of exterior wall) includes usable area, building core, service areas, and circulation.
-excludes Major vertical shafts and penetrations, stairs, elevators.
Usable Area
Includes the floor area to be assigned to occupant groups or available for assignment. This encompasses net assignable area, building columns and secondary circulation.
-excludes exterior walls, major vertical penetrations, primary circulation and building core
Net Area May sometimes be referred to as Net Assignable Area.
-excludes exterior walls, major vertical shafts and penetrations, building core and service areas, and both primary and secondary circulation, also excluded are bathrooms).
(IBC: Building square footage calculations utilize gross areas, while occupancy calculations are either gross or net.)
Overall Building Efficiency
Overall Building Efficiency =
Interior Layout Efficiency * Base Building Efficiency
Overall Building Efficiency =
net assignable area / building gross area
Base building efficiency
Base building efficiency =
usable area / building gross area
Interior layout efficiency
Interior layout efficiency =
net assignable area / usable area
Building Efficiency - R/U ratio
R/U ratio = rentable area / usable area
Typ. Building Efficiency (%): Ware house
Ware house 90
Typ. Building Efficiency (%): Museums
Museums 83-90