
Create a room-by-room inventory of elements that anchor identity: stair newels, plaster medallions, original mantels, baseboard heights, and door casing profiles. Rank them for significance, then test every proposed change against this list. If flow improves but a defining feature is compromised, explore alternate strategies. The goal is clarity: upgrade function while reinforcing those visual cues and touchpoints that make the home unmistakably itself.

Historic layouts often choreograph movement, compressing then releasing space to create drama or quiet. Study how vestibules prepare you, how parlors pause conversations, and how corridors guide the eye. When modernizing, retain the ritual of arrival and thresholds even if rooms shift size. Use sequence to enhance comfort and accommodate new uses, allowing memories to echo within refreshed, welcoming routes.

Photograph wall cavities, framing notches, and paint layers during selective openings. These clues reveal how families adapted rooms over decades and where the structure willingly flexes. Keep a living record that informs details later, like trim returns or cabinet depths. This documentation becomes a compass when decisions get tight, ensuring upgrades remain rooted in evidence rather than guesswork or fashion.