01Read the site first
Privacy, grade, orientation, outlook, access, landscaping and neighbouring context can matter as much as interior finish. Record those attributes before choosing comparable sales. Separate character homes, documented renovations and custom construction before selecting comparables.
02Audit architecture and execution
Separate design intent from construction quality. Plans, permits, specifications, envelope details, mechanical systems, renovation records and ongoing maintenance make the physical story legible. Review architecture, envelope, systems and additions together as the home's effective age.
03Model effective age
Original construction, major additions and comprehensive renovation can coexist in one property. The useful age is supported by documents and inspection evidence, not a marketing adjective. Test river relationship, flood-map context, drainage, grade and insurance at the exact address.
04Widen the buyer set
A distinctive home may compete beyond one community boundary. Compare the alternatives a qualified buyer can actually purchase across Calgary while preserving the subject property's local context. Compare lot, trees, privacy, parking and immediate street alongside the interior.