There is a particular kind of architectural fraud that passes for heritage sensitivity: the new building that tries to look old. You see it everywhere, brick façades with fake keystones, vinyl windows with applied muntins, proportions that approximate the nineteenth century without committing to it. This approach satisfies no one. Historians cringe at the fakery. Architects wince at the missed opportunity. And the street ends up with something that is neither genuinely old nor genuinely new.
The good news is that heritage compatibility and architectural integrity are not in conflict. The challenge is understanding what compatibility actually requires, and what it does not.
Ontario’s heritage policy framework, guided by the Provincial Policy Statement and the Standards and Guidelines for the Conservation of Historic Places in Canada, asks that new development adjacent to heritage resources be sympathetic and avoid visual intrusion. These are words that invite interpretation. What they do not mean is imitation. What they do mean is attention: to scale, massing, rhythm, and material.
Scale is perhaps the most important variable. A new building that towers over an adjacent heritage structure will feel discordant regardless of its material choices. Matching or stepping down to the cornice height of the heritage building, or at minimum acknowledging it through a setback or datum line, signals that the designer has engaged with the context rather than ignored it.
Rhythm refers to the pattern of openings, bays, and vertical elements along a façade. Heritage commercial streetscapes in Ontario towns typically have a strong vertical rhythm: narrow bays, tall windows, clear divisions between units. A new building that introduces a horizontal band of glazing across an entire frontage breaks this rhythm even if it is beautifully detailed. Subdivision of the façade into bays, not necessarily matching the heritage proportions exactly but responding to them, maintains the street’s visual continuity.
Material is the most contested dimension. The reflexive choice is matching brick: the same colour, the same bond pattern, the same coursing. But there is a compelling argument for differentiation, for choosing a material that is clearly of its time while remaining calm and contextual. A smooth precast panel in a warm limestone colour, or a dark brick in a running bond that acknowledges but does not mimic the adjacent heritage masonry, can read as compatible without pretending to be something it is not.
The gap between old and new deserves special consideration. Where new construction abuts a heritage building directly, a narrow visual break, even a few inches of recessed or contrasting material, can read as a respectful acknowledgement that these are two distinct structures from different eras. Heritage professionals often refer to this as reading the addition as an addition.
The best heritage-adjacent buildings are not invisible. They are disciplined. They make the heritage resource look better by contrast, and they add a layer of contemporary quality to the streetscape without displacing the character that makes it worth caring about in the first place.