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C. Renovation and Additions Renovation is the modification of a structure, which does not alter the general massing while and addition, is a change in mass. A modification, which involves the removal of a part of the landmark, should be considered under demolition (see demolition). Additions to landmarks should not detract from the original form and unity of ht landmark and should not cover singular examples of architectural detail. Additions to landmarks should be added in a manner that does not disrupt the visible unity of overall appearance of the site. The proportions, materials and ratios of the existing structures should be carried through in the additions. Care should be taken not to change or alter the following: 1. Structure— Necessary structural improvements, where safety demands should be accomplished in such a way as to cause minimal visual change to the original style and construction. 2. Material — Additions and improvements involving any new material in the landmark should be of the same material as the original. It should be the same size and texture. An alternative material may be allowed if it duplicates the original. a. wood —all wood trim should conform with existing trim in shape and size. STAFF RECOMMENDATION: Staff recommends approval of the project as it conforms to the Local Landmark Standards. Staff requests to be involved with the selection of the aluminum clad wood replacement windows. Catherine D. Hostetler, Director On a motion by Mike Voll with a second by Brandon Anderson to approve application as presented conditionally to include Staff recommendation regarding windows. Vote: 4 — 0 unanimous. COA #2015 -0326B Approved Conditionally. 4. Central High 330 West Colfax COA #2015 -0401A Local Landmark No representation STAFF REPORT CONCERNING APPLICATION FOR A CERTIFICATE OF APPROPRIATENESS Date: 6 April 2015 Application Number: 2015 -0401A Property Location: 330 West Colfax Architectural Style/Date /Architect or Builder: Collegiate Gothic /Art Deco /1911- 1913/1918- 1928/William B. Ittner, Architect Property Owner: Forum Real Estate Group Landmark or District Designation: Local Landmark and Multiple Resource National Register Rating: Outstanding DESCRIPTION OF STRUCTURE/ SITE: The main entrance, located on St. James Court, is located in a center projecting pavilion and is three storeys tall. The raised doorway is surrounded by limestone trim that extends to include the large, stained glass stairwell window located over the door. Secondary entrances located in the northeast and southeast quadrant also have limestone surrounds with the entablatures containing panels illustrating the sciences. The multi -panel windows of the building are clustered together in groups of threes and fours and divided by pilasters with limestone capitals. Limestone spandrels separate the first and second floor windows. The roofline features a parapet, stone lined crenellations and cut stone cornice line. The foundation is dressed stone. ALTERATIONS: In 1993 the Historic Preservation approved the changes that allowed the Alexander Company to adaptively reuse the school to create loft apartments. The Courtyard elevations had aluminum replacement windows proposed and approved (1993). The chimney and power plant were demolished (1994). All doors appear to be replacements. APPLICATION ITEMS: Window repair /replacement due to wood corrosion creating water intrusion. DESCRIPTION OF PROPOSED PROJECT: The Business Manager, Tina Bobbitt met with Preservation Specialist, Steve Szaday on 30 March to evaluate the window system in the west facing "penthouse ". It was discovered that the original wood storm windows, the wood windows and sills had deteriorated significantly and cannot be repaired. The Management of Forum Real Estate is proposing to replace the current deteriorated wood window and storm system with aluminum frame windows similar to ones previously approved for this courtyard (see photographs). Action Glass Company proposes to install in the 96 x 120 opening 2 fixed bronze anodized aluminum framework windows divided once vertically and twice horizontally (see diagram) to resemble the original. The framework will have a 2" face and 4.5" depth. All glazing to be clear, insulated, tempered where required. The brick and mortar opening for the new installation will be repaired in kind, if necessary. STANDARDS AND GUIDELINES: B. Maintenance The maintenance of any historical structure or site shall in no way involve any direct physical change except for the general cleaning and upkeep of the landmark. The Commission shall encourage the proper maintenance of all structure or sites. B. Treatment Treatment shall be defined as any change of surface materials that will not alter the style or original form. Such improvements include re- roofing, glazing, or landscaping lawns and may involve a change that can potentially enhance or detract from the character of the landmark. A treatment change of any surface whether on the landmark or in its environment may require a Certificate of Appropriateness if it significantly alters the appearance of the landmark. Although these kinds of changes may not 11