Replacement cost
The dollar figure a reserve study puts on repairing or replacing one component, and where that figure actually comes from.
Replacement cost is the estimated current price to repair or replace a reserve component, drawn from published cost manuals, the preparer's project history, and actual bids, not from what the association originally paid. It is priced either as a unit cost or a cost in place, and every dollar figure in a funding plan starts here.
Where the number comes from
Replacement cost is the estimate a reserve study preparer puts on repairing or replacing a specific component: the roof, the pool pump, the parking lot asphalt. That number does not come from a single source. Preparers draw on published cost manuals such as RS Means and Marshall & Swift, on invoices and bids the association itself supplies, and on the preparer's own database built from other associations' completed projects.
"Either by unit cost or cost in place."
Source: Component Project Cost Estimates, Reserve Data Analyst
Both are accepted ways of stating the figure. What matters to the board is that the estimate is documented and traceable to one of these three sources, not pulled from thin air.
Why it moves every year
A reserve study is updated on a cycle, and the replacement cost line for the same roof or the same clubhouse HVAC unit is almost never the same two years running. That is inflation at work: the funding math tracks the future cost of replacing a component, and prices for labor and materials keep rising between now and the year the project actually happens.
"Inflation has a much greater impact on the funding plan."
Source: What's Included in a Reserve Study? Key Elements Explained, Reserve Advisors
The interest a reserve account earns works the opposite direction, but only on money already sitting in the account; it does not touch the cost side the way inflation does. A study that does not state its inflation assumption is one the board cannot check. How that assumption is set varies by preparer; ask what rate yours used and why.
What the number is for, and what it is not
The replacement cost in a reserve study is a planning figure, not a purchase order. When a project comes due, the board still needs to solicit competitive bids from contractors; the study's estimate is a sanity check against those bids, built from manuals and past projects rather than a quote for this specific job. A bid that lands far above the study's figure is worth asking about, not a reason to skip the bidding process.
The estimate only exists for components already on the association's component inventory, the list of assets the association is financially responsible for maintaining. Add a component to that list and it needs a replacement cost of its own before it can be funded.
Check yourself
Answer before you read the explanation, recalling it is what makes it stick.
A reserve preparer needs a replacement cost for the pool resurfacing project. Which of these is NOT one of the three sources a preparer typically draws on?
A board is comparing a roofing contractor's bid to the dollar figure in last year's reserve study for that same roof. What should the board do with the study's number?
Between the reserve study done three years ago and today, the estimated replacement cost for the parking lot resurfacing project has gone up even though nothing changed about the lot itself. What most likely explains the increase?
Sources
- Component Project Cost Estimates, Reserve Data Analyst
- What's Included in a Reserve Study? Key Elements Explained, Reserve Advisors
Insurance
Next, see how these estimates roll up into a single number for the whole reserve fund in fully funded balance.
Which cost manuals and databases a preparer uses, how often estimates are refreshed with current bids, and how local labor and material costs compare to national averages all vary by preparer and region. The replacement cost figure in a reserve study is also not the same figure your property insurance policy uses for replacement cost coverage; ask your insurance agent which number applies to which purpose.