Ask three agents to price the same house and you'll get three numbers — often tens of thousands of dollars apart. Each will be backed by "the comps." The difference isn't the data; everyone is looking at the same closed sales. The difference is how rigorously the evidence gets handled.
What rigorous looks like
A defensible price is an argument, and an argument has parts you can check:
- A clean comp set. Same neighborhood and product, closed recently, with stated reasons for every inclusion and exclusion. "I left out 12 Birchwood because it backs onto the highway" is evidence; a comp set with no exclusions is a vibe.
- Explicit adjustments. The kitchen remodel is worth something; the twenty-year-old roof costs something. Write the numbers down. A buyer's agent will.
- The inspection, priced in. Condition findings aren't just negotiation theater — they're line items. A roof with two years left is a known quantity, not a feeling.
Most agents do a version of this in their heads. The trouble with heads is that they can't be handed to a client, challenged line by line, or reused as the market moves.
Making the argument visible
When the comp set, adjustments, and condition findings live in documents instead of intuition, the conversation with a client changes. "I think we list at $895" becomes "here are the three sales, here are the adjustments, here's why the number is $870." One of those survives a skeptical seller. The other becomes a price reduction in week four.
Periphery does the document side of this work — reading the comps, the inspection, the disclosures, and laying out the arithmetic with citations. The judgment stays yours. The argument becomes something you can show.