Asking vs effective: survey the rent actually paid
Lesson 4 of 6 · Pick the market like a fund
1 · Learn the move · Recipe pattern
The rent line in your development model is the number the whole hold rests on, and the easiest place to get it wrong is to type in asking rent. Asking is the sticker. Effective is what the owner keeps after free rent and tenant improvements, and it is the only figure that belongs in a model for a building you will own for fifteen years. Run the survey as a recipe, the same steps every time: restate each comp as quoted, check the lease structure before comparing anything, lay out the effective-rent arithmetic as a setup you compute yourself, and stop wherever an input is missing. The step people skip is the structure check. A gross rent and a net rent are not the same kind of number, and a model asked to 'compare' them will quietly treat them as one. It is a market survey: it reads what the submarket pays. It does not set your rent.
Run this recipe on the comps below, in order. 1: restate each comp as quoted with its source. 2: state each comp's lease structure as quoted, and flag any comp not on the same structure as the rest. 3: for comps with every input, write the effective-rent setup tagged [verify], no final figure. 4: any missing input reads [NEEDS: ...] and blocks that comp's effective rent. 5: a market read from complete, like-for-like comps only. [comps]
2 · Your turn. You write the prompt
You are setting the rent assumption for a 96,000 SF small-bay flex building you would build and hold on a 25-acre site in Lowdrey Flats. You have three comps from leasing brokers' comp sheets: Ferncastle Business Park, $13.25/SF NNN, 5-year term, 5 months free, TI $12/SF. Quillan Flex Center, $14.00/SF NNN, 7-year term, free rent not stated, TI $18/SF. Arrowbrook Commons, $16.50/SF modified gross, 5-year term, 3 months free, TI $10/SF. Write the prompt that surveys the rent actually paid.
Write the prompt for this scenario as given, or swap in a real one from your own work. The score works the same either way.
Remember: the AI sees only your prompt, not this page. If the situation isn't in your prompt, it doesn't exist.
Optional. These shape the output when you run your prompt below, not your score.