Companion files

Commercial Real Estate Investing

A Practitioner’s Guide to What Actually Produced the Return, and Who Was Paid for It

These are the four Excel workbooks that go with the book. Every figure the book prints is reproduced in them by a live formula rather than a typed constant — move an expiry year, change the void, drag the exit yield, switch the waterfall convention, and every dependent number moves. Each one ends with a Checks sheet setting the printed figure beside the computed one: 158 controls in all, every one green. If a control ever reads FAIL, the workbook is wrong, not the book.

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All four workbooks

Download the ZIP103 KB

Everything described below is inside it, with the read-me.

The four workbooks

Conventions used throughout

Blue texta hardcoded input — you may edit these
Yellow fillan input cell; everything else on the sheet is a formula
Black texta formula — do not overtype these
Checks sheetthe printed figure beside the computed one, with a PASS or a FAIL

Why the checks matter more than the models

A workbook that agrees with a book proves nothing on its own — the author wrote both. What the Checks sheets do is different: they force the model to reproduce, from a formula, a number that was printed before the model existed.

On this book the discipline worked in the other direction twice, and the chapters carry the result rather than the original claim. The first draft declared a nine-month void between leases and never applied it; applying it turned the rent line from a rising staircase into something that falls in five years out of ten, and made the hold-period table jagged rather than smooth. The second draft computed the preferred return on the money subscribed at closing and ignored the 1,108,947 called a year later; correcting that cut the promote from 3,451,151 to 1,748,716 and moved the investor's return from 8.2150 per cent to exactly 8.0000. Both errors flattered the story the book was telling. Both were caught by refusing to print a number that would not reproduce.

Where two correct computations disagree, both are shown. The four attribution averages printed to four decimals sum to 5.1985 against the model's 5.1986. The exit value is 36,892,015 computed from the printed income and 36,892,021 from the unrounded. Neither gap is smoothed away.

Opening the files

The workbooks open in Microsoft Excel, LibreOffice Calc, Google Sheets and Numbers. They use no macros and no add-ins, so nothing needs to be enabled or trusted. If your spreadsheet asks to update links on opening, decline — there are none.

Articles on this book

Also by Julian R. Sterling

The other books with companion files. The full list of titles is on the author page.