Give the existing home a positive brief
A project can begin with a long account of what needs changing. The kitchen feels enclosed. A passage interrupts the plan. The finish has become difficult to live with. Alongside those observations, write down the moments that already work. Perhaps the entry opens into a room at just the right pace, or a window frames planting without exposing the whole interior. Give those observations a place in the brief.
This is a proposal for how to make decisions, rather than a judgment about a particular house. Start with the property itself. The B&Co. Realty valuation guide asks for its present condition, available floor plans and a record of additions or renovations. That material also gives a retention discussion something concrete to address. Walk through the plan and name the qualities you want a proposed change to preserve.
Be precise about the quality. Keeping a window may be less important than keeping the daylight it admits. Keeping a wall may matter because it gives a room a useful edge for furniture. The instruction should explain the relationship you value, leaving room to examine how a revised plan could carry it forward.
Make the instruction testable
Write each intention against a location on the plan, with a photograph where useful. Describe what a reviewer should look for in the next proposal. For the entry, that might be a pause before the main room comes into view. For a window, it might be the relationship between the opening and the seating position. A drawing can then answer a specific question instead of receiving a general request to retain character.
An adjective alone leaves too much open. Warm, generous and quiet can each describe very different spaces. Attach the word to an observable condition: the place where a chair sits, the length of an uninterrupted wall, the way an opening meets the ceiling. This gives the designer a subject to work with and gives the owner a basis for reviewing the result.
A quality worth keeping deserves a place in the instructions.
Keep the intention separate from an untested assumption about the building. A visible surface does not establish the condition of what lies behind it. If the proposal depends on retaining an element, identify the questions that need an appropriate review before treating it as fixed. The brief can express a preference while leaving that preference subject to what the project establishes.

