CapEx Reserves: Why Guessing Destroys Your Exit Multiple
You run the numbers on a 150-unit deal.
The pro forma looks clean.
Cash flow is solid.
Everything points to a smooth exit in year three.
Then you close.
Six months in, the roof needs $80K in repairs you didn't see coming.
A year later, the HVAC systems start failing unit by unit—$15K here, $12K there, $18K over there.
Two years in, you realize the parking lot needs a complete resurface: $120K.
Your capital reserves evaporate.
Your NOI takes a hit you didn't plan for.
Your beautiful exit multiple just got squeezed by a buyer who sees the deferred maintenance and adjusts down.
How This Happens in Almost Every Underwriting
Most investors treat CapEx like an afterthought.
They plug in a number—$500 per unit per year, maybe $750 if they're being "conservative"—and move on.
That's not underwriting. That's guessing with a spreadsheet.
CapEx isn't a fixed percentage of revenue.
It's not a uniform reserve across the market.
It's a function of the building's actual age, its systems, its condition, and the climate it lives in.
A 15-year-old building in the Midwest behaves differently than a 15-year-old building in coastal California.
A value-add with documented deferred maintenance is not the same as a recently renovated stabilized property.
A building with original HVAC from 2008 is not the same as one with systems replaced in 2020.
When you ignore these distinctions, your underwriting doesn't match reality.
What Actually Happens When You Try to Exit
The buyer three years from now will do what you should have done at acquisition: order a phase 1, pull a capital reserves study, and get a structural inspection.
If you haven't maintained the building properly or set aside adequate reserves, their report will tell them a different story than your underwriting told you.
They'll adjust their offer down—sometimes 5%, sometimes 10%, sometimes more.
Or they'll walk entirely and you'll be left explaining why your exit assumptions were so far from market reality.
You don't build credibility that way. You build skepticism.
Building CapEx Reserves From Reality, Not a Percentage
Start by walking the property.
Touch things. Ask questions.
Talk to the current operator or maintenance manager about what breaks, when it breaks, and what it costs.
Document the actual age of every major system: roof, HVAC, electrical, plumbing, parking lot, appliances.
Cross-reference with industry life expectancy tables—those are public and free from the National Association of Home Builders and similar sources.
Then build a timeline, not a percentage.
What fails in Year 1?
Maybe the parking lot is failing now. That's $120K Day One.
Maybe appliances are at the tail end of their 12-year life. Plan for staggered replacements.
What fails in Year 2?
HVAC is 18 years old. You can coast another year, but you're coasting.
Roof is at 22 years and showing wear. This is the year to plan it.
What fails in Years 3-5?
Once major systems are handled, you're looking at unit-level refreshes, exterior maintenance, dock repairs.
What's beyond your hold period?
Note it anyway. Your buyer will ask, and honest answers build trust in your exit conversations.
A 20-year-old roof with no replacement in sight is a Year 1 or Year 2 capital item, not a "we'll handle it someday" item.
Original appliances in 150 units means you're replacing 20-30 per year, not hoping they all last five years.
Parking lot rehab depends on climate, UV exposure, and traffic patterns—not a formula.
This work gets you to a real number, grounded in the building's actual condition and timeline.
What Changes When You Get CapEx Right
First, your underwriting becomes honest.
You stop competing on inflated numbers and start competing on actual, defensible returns.
You win fewer deals, but the ones you do win actually perform.
Second, your exit conversations change.
A buyer's capital reserves study aligns with yours instead of clashing with it.
They see a building that's been properly maintained and honestly analyzed.
You hit your exit price because the NOI and the property condition actually match your underwriting.
That's the difference between investors who are constantly frustrated with their numbers—scratching their heads about why their exit fell short—and operators who close deals that work.
The building will tell you exactly what it needs.
You just have to ask and listen instead of defaulting to a percentage.
If you want to sharpen how you analyze capital reserves and major repairs in your model, check out the Free Underwriting Masterclass or schedule a call with me to talk through your process.