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Comparative building costs.

LOW-RISE OFFICE BUILDINGS IN RESIDENTIAL AREAS

OFFICE BUILDING #1

To retain 150-year-old trees on this St. Louis site adjacent to a residential area, this office building has a pier and above grade-beam foundation to avoid disruption of the tree roots. LEED-certified green features include recycling rainwater to irrigation system, light tubes, outside views from 90% of the tenant spaces, waterless urinals, recycling construction waste, solar water heating, two-sided finished block and insulated exterior system, native plant landscaping, and operable windows. The exterior insulated (CFMU) structural masonry system has an R-21 rating.
                                                 SQ. FT.    ADJUSTED
DIVISION                                %        COST       COST*

General Requirements                    8.72     10.92      205,330
Concrete                                9.12     11.43      214,848
Masonry                                 15.88    19.89      373,969
Metals                                  19.35    24.25      455,830
Wood, Plastics & Composites             1.22     1.53       28,758
Thermal & Moisture Protection           9.05     11.33      213,075
Openings                                5.87     8.61       161,908
Finishes                                3.29     4.12       77,526
Specialties                             0.68     0.85       15,915
Equipment                               0.27     0.34       6,448
Conveying Systems                       2.55     3.19       60,059
Fire Suppression                        5.18     6.49       121,972
Plumbing                                6.39     8.01       150,529
HVAC                                    2.41     3.01       56,676
Electrical                              9.02     11.30      212,462
TOTAL                                   100%     125.27     2,355,305

For more facilities cost data, visit the BUILDINGS bookstore at
www.bnibuildings.com. Additional building case studies are available
at DCD.com


OFFICE BUILDING #2

This brick and stone office building is adjacent to a residential neighborhood. A residential character was achieved with warm red brick and cream-colored masonry, a pitched roof with 7-foot-deep overhang, berms that minimize the building's height, and extensive glazing. The building has a concrete foundation with metal studs, bar joists, and braced-frame structural steel. The exterior facade and the lobby's interior have cast stone masonry units. The building is capped with a silver-colored, standing seam metal roof. An excavated courtyard is connected to a basement conference room.
                                                 SQ. FT.    ADJUSTED
DIVISION                                %        COST       COST*

Procurement & Contracting Requirements  10.3     12.37      742,027
General Requirements                    2.45     2.94       176,555
Concrete                                12.75    15.31      918,764
Masonry                                 6.12     7.34       440,595
Metals                                  12.06    14.48      869,066
Wood, Plastics & Composites             10.31    12.37      742,461
Thermal & Moisture Protection           5.08     6.10       366,127
Openings                                8.26     9.92       595,150
Finishes                                3.43     4.12       247,470
Specialties                             0.65     0.79       47,175
Equipment                               1.03     1.24       74,309
Furnishings                             0.87     1.04       62,411
Conveying Systems                       2.99     3.59       215,295
Fire Suppression                        1.46     1.75       105,104
Plumbing                                5.85     7.02       421,497
HVAC                                    9.33     11.20      671,991
Electrical                              7.06     8.47       508,466
TOTAL                                   100%     120.05     7,204,463

* Actual building costs have been adjusted to reflect materials prices
as of January 2017

SOURCE: DESIGN COST DATA. BNI
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Title Annotation:FM COST TRENDS
Publication:Buildings
Date:Feb 1, 2017
Words:488
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