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HAHC approves Passive House applicant’s high‑performance windows after debate over appearance vs. performance
Summary
After extended discussion about reconciling Passive House energy goals with the Heights’ appearance guidelines, the commission approved the applicant’s proposal for triple‑pane casement windows with a horizontal muntin to read like traditional windows from the street for 1145 Harvard.
The commission on Oct. 10 approved a controversial proposal at 1145 Harvard (also referenced as 1145/112 East 12th) that will allow the owner to use high‑performance triple‑pane casement and fixed windows with a horizontal muntin (a removable muntin bar applied within the glazing) so the windows read from the street as traditional double‑hung units while meeting Passive House performance goals.
Owner Anders Hyde and architect/builder representatives told the commission the project targets Passive House certification to achieve very low air leakage and high energy performance. Architect/representative Jesse Hunt and builder David Edgar explained that in practice casement and fixed units with internal mullions or applied muntins achieve both airtightness and a historic look from the right‑of‑way.
Staff recommended a compromise in which windows facing 12th Street should present an appearance compatible with the contributing context (appearance of recessed one‑over‑ones), while other elevations could use the submitted high‑performance units. Commissioners debated whether the non‑contributing house’s alterations (roof, siding, new openings) justified more flexibility; one commissioner argued non‑contributing status and significant alterations meant the project may be allowed to appear different, while others pushed to retain contextual visual cues on street‑facing facades.
Ultimately the commission approved the project as presented, including the triple‑pane casement/fixed units with a horizontal muntin to provide the appearance of a 1‑over‑1 or double‑hung window from the street, with a condition that street‑facing windows appear compatible (the vote carried over some dissent). Supporters framed the decision as recognizing the city’s need to accommodate high‑performance building practices in appropriate contexts; dissenters emphasized the ordinance’s guidance on recessed sash and visual proportions.
What’s next: Staff will document the agreed appearance details and work with the applicant on final window shop drawings. Because the house and proposed alterations exceeded administrative thresholds, the commission’s approval covers the design parameters recorded in the staff report and the meeting motion.
