A comp database or a spreadsheet? When each one stops working
Most commercial appraisers start with a spreadsheet, and most of the time that is the right tool. This is an honest account of where a spreadsheet stops being enough, and what a purpose-built comp database does and does not change.
Where a spreadsheet is fine
- You build a grid a few times a year.
- Your comps live in one workbook that you reuse.
- You are the only person who ever opens it.
If that describes you, you probably do not need anything else.
Where it starts to cost you
The comp you know you have. It is in a report from two years ago, on a shared drive, in a folder named after a client. Finding it takes longer than confirming the sale again, so the comp never gets reused.
Copies. A spreadsheet per assignment, copied from the last one. A correction made in one copy is not made in the others, and nobody remembers which is current.
Retyping. County data is retyped by hand: the address, the acreage, the year built, the last sale. Each one is a chance to be wrong.
No map. A list of addresses does not show you that three of your six comps sit on the wrong side of a canal.
Photos and attachments end up in a different folder from the numbers they belong to.
One person. The moment a second appraiser needs the same comps, the spreadsheet becomes a negotiation.
What a comp database changes
- Each comp exists once, with everything known about it: the confirmation, the photos, the deed details.
- You search it: any word in any field, or a filter on price, size, year, cap rate or date.
- The map shows the comp on the county's own parcel lines.
- A parcel number fills in the county's facts, so you type less and check more.
- The grid is built from the records, not typed into a template, so it comes out in your format every time.
What it does not change
A comp database does not confirm a sale for you. You still read the deed, check the documentary stamps and look for a mortgage. ValuBids is also not report-writing software: it does not write your appraisal report. It holds and builds the evidence that goes into the report, and exports the grid to Word or Excel so the report can use it.
A reasonable way to decide
Count how many times in the last month you hunted for a comp you knew you had, or retyped something the county already publishes. If the answer is "a few", a spreadsheet is fine. If it is "every week", the time you lose is more than the cost of a tool, and the earlier a firm moves its comps into one library, the more that library is worth.
You can try ValuBids with a 7-day trial, or look around a sample firm first with the demo on the home page.