Concord HDC conditionally approves 510 Lexington Road renovation; applicants must supply samples

The Town of Concord Historic Districts Commission voted to approve proposed renovations at 510 Lexington Road on condition that the applicants provide window/mullion details, product photos of exterior light fixtures and a sample of the proposed windows.

Evan Folsom, a junior designer at Dickinson Architects, described plans for a small rear breezeway addition to accommodate a half bath and mudroom, interior kitchen and dining renovations, replacement of most vinyl doors and windows with wood‑framed windows, cedar shingle siding to match existing exposure, and dark‑sky exterior lighting at the garage. He told the commission the proposed addition would not be visible from the street and that many current windows are vinyl and will be replaced with painted wood units.

Commissioners asked detailed follow‑up questions. Tim sought confirmation about a storage shed at the rear and reiterated the commission’s usual guidance that fixtures be equivalent to a 40‑watt incandescent in lumen output when specifying dark‑sky fixtures. Walter recommended larger gutters and that downspouts be extended away from the foundation to reduce basement water infiltration. Bill asked whether the proposed bay window should use divided lights to be more historically appropriate; the applicants agreed to provide a window mullion/detail sheet.

The motion to approve was made by Commissioner Kate and seconded by Commissioner Tim, with the approval conditioned on the requested samples and examples. The transcript records the motion, the second and a roll call procedure but does not include a full, line‑by‑line vote tally in the public transcript; the commission moved forward after the roll call procedure.

Applicants agreed to submit: a mullion/window detail, a photo/tear sheet of the selected light fixtures and a product photo of the proposed windows so the commission can confirm profiles and materials before the permit is finalized.

The commission’s action is procedural: staff will post the required samples to the project record and the applicants may proceed after the commission confirms those items satisfy the conditions.