These commercial or institutional greenhouse buildings are over 9,000 square feet and have straight walls with gable or shed roofs. They are used to regulate the climate conditions for study and display of germination and growing of various plants and vegetables, and include both educational and commercial sales structures. Frames are light wood posts (Class D) or steel pipe or tube assemblies (Class S) with various translucent covers. The lowest qualities have only glass or fiberglass coverings. The better conservatory structures have good structural mullions and architectural embellishments, and may have some masonry knee wall. The floors are light concrete, gravel or dirt at the lower qualities, which can be either the typical school growing or sales nursery house. The better horticultural or research structures will have glazed partitions and sealed concrete floors. Costs include some electrical and water service commensurate with the quality.
The following are not included in the costs: Heating, automated watering systems, shade curtains or planting benches.
The following are related occupancies:
170 Greenhouse, Institutional, Small (under 4,500 square feet)
171 Greenhouse, Institutional, Medium (4,500 - 9,000 square feet)
135 Greenhouse, Hoop, Arch-rib, Small (under 4,500 square feet)
141 Greenhouse, Hoop, Arch-rib, Medium (4,500 - 9,000 square feet)
138 Greenhouse, Hoop, Arch-rib, Large (over 9,000 square feet)
518 Greenhouse, Lath Shade House
134 Greenhouse, Modified Hoop, Small (under 4,500 square feet)
140 Greenhouse, Modified Hoop, Medium (4,500 - 9,000 square feet)
137 Greenhouse, Modified Hoop, Large (over 9,000 square feet)
136 Greenhouse, Straight Wall, Small (under 4,500 square feet)
142 Greenhouse, Straight Wall, Medium (4,500 - 9,000 square feet)
139 Greenhouse, Straight Wall, Large (over 9,000 square feet)
Note: Exterior wall choices are not available for this occupancy.
Availability of Elevators by Area for this occupancy: No
Marshall Valuation Service sections: 17 and 47.
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Class |
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Quality |
A |
B |
C |
D |
H |
M |
P |
S |
W |
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Low |
-- |
-- |
-- |
20 |
-- |
-- |
-- |
25 |
-- |
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Average |
-- |
-- |
-- |
25 |
-- |
-- |
-- |
30 |
-- |
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Good |
-- |
-- |
-- |
30 |
-- |
-- |
-- |
35 |
-- |
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Excellent |
-- |
-- |
-- |
35 |
-- |
-- |
-- |
40 |
-- |
Class D (Wood or Steel Framed Exterior Walls):
|
Quality |
Exterior Walls |
Interior Finish |
Mechanicals |
HVAC |
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Low |
Wood frame, glass or fiberglass covering, some vents |
Dirt floor, some gravel or concrete walks, typical school-nursery house |
Minimum equipment outlets and hose bibs |
None |
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Fair |
Best redwood or laminated frame, glass or sandwich panels |
Concrete floor, good working classroom house or nursery sales |
Adequate electrical, lighting, water and drains |
None |
Class S (Metal Frame and Walls):
|
Quality |
Exterior Walls |
Interior Finish |
Mechanicals |
HVAC |
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Low |
Metal frame, glass or fiberglass covering, some vents |
Dirt floor, some gravel or concrete walks, typical school-nursery house |
Minimum equipment outlets and hose bibs |
None |
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Fair |
Good metal frame, glass or translucent sandwich panels |
Concrete floor, good working classroom house or nursery sales |
Adequate electrical, lighting, water and drains |
None |
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Average |
Tubular or structural frame, good glazing, some knee wall |
Concrete floor, good secondary or small college horticulture house |
Adequate electrical and water service, drains |
None |
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Good |
Shed or gable, good glass and masonry knee wall |
Good concrete floor, good university science greenhouse |
Good lighting and water, good drains |
None |
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Very Good |
Best aluminum frame, gutters, metal sandwich or masonry knee wall |
Sealed concrete, research modules, glazed corridors |
Good lighting and plumbing |
None |
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Excellent |
Structural mullions, architectural embellishments, very ornate |
Concrete, pavers, some partitions and extras, good conservatory |
Best lighting, electrical and plumbing |
None |