What is a good FCI score?

Lower is better. Under 5 percent is generally considered good condition, 5 to 10 percent is fair, 10 to 30 percent signals significant deferred maintenance, and above 30 percent often means the building is a candidate for major recapitalization or replacement. Benchmarks vary by asset class and owner standards.

How do you calculate FCI?

Divide the cost of deferred maintenance and needed repairs by the current replacement value of the building, then express it as a percentage. A building needing $500,000 of work with a $5,000,000 replacement value has an FCI of 10 percent.

What is the difference between FCI and deferred maintenance?

Deferred maintenance is the dollar cost of repairs that have been put off. FCI puts that number in context by dividing it by replacement value, so a $500,000 backlog reads very differently on a small building than on a large one. FCI normalizes condition across properties of different sizes.

Why does FCI matter for real estate investors?

FCI turns building condition into a single comparable number, so you can rank properties by physical risk, prioritize capital spending, and spot assets where deferred maintenance is quietly eroding value before it forces an emergency repair or a failed inspection.

FCI (Facility Condition Index) Explained

Most real estate metrics measure money — income, debt, return. FCI measures something money tends to hide: the physical condition of the building itself. A property can post a healthy NOI for years while its roof, HVAC, and systems quietly age toward failure. FCI is the number that makes that decay visible before it turns into an emergency.

What FCI measures

The facility condition index (FCI) scores a building's condition by comparing the cost of its deferred maintenance to what it would cost to replace it:

FCI = Deferred Maintenance & Repair Costs ÷ Current Replacement Value

The result is a percentage. A low FCI means the building is in good shape relative to its size and value; a high FCI means a large backlog of work relative to what the building is worth. Because it is a ratio, FCI lets you compare a small duplex and a large commercial building on the same scale — something a raw repair-cost number can never do.

A worked example

Say a building would cost $5,000,000 to replace today, and an inspection turns up $500,000 of needed repairs and deferred maintenance — a new roof, aging mechanicals, and parking-lot work.

FCI = $500,000 ÷ $5,000,000 = 0.10, or 10%

A 10% FCI says that bringing the building back to good condition would cost about a tenth of replacing it outright. On the standard scale, that lands in "fair, with meaningful work pending."

How to read the score

Lower is better. The widely used bands are:

Under 5% — good condition. Routine upkeep, no major backlog.
5% to 10% — fair. Real work is accumulating; plan and budget for it.
10% to 30% — poor. Significant deferred maintenance; systems are overdue and risk compounds.
Above 30% — critical. The building is often a candidate for major recapitalization or full replacement rather than incremental repair.

These bands are conventions, not laws — a Class A office and a workforce apartment building may hold themselves to different standards. What matters more than the absolute number is the trend: an FCI drifting upward year over year means maintenance is losing the race against aging, and the longer it runs, the more expensive it gets to reverse.

Why FCI matters for investors

Three reasons it earns a place next to the financial metrics:

It prioritizes capital. When you own several properties, FCI ranks them by physical risk, so limited capex dollars go where condition is worst instead of where the loudest tenant complains.
It protects value. Deferred maintenance does not stay deferred — it converts into emergency repairs, failed inspections, and lost rent at the worst possible time. A rising FCI is an early warning you can act on.
It informs underwriting. On acquisition, a building's FCI tells you how much capital you will need to pour in after closing, which belongs in your return math from day one — not as a surprise in year two.

FCI is a condition metric, not a cash-flow one, so read it alongside the financials: a property with a strong cap rate and a climbing FCI is borrowing its returns from its own future repair bill.

The takeaway

FCI is deferred maintenance divided by replacement value, expressed as a percentage — a single, comparable score for how worn a building is. Keep it under 5% for good condition, watch the trend more than the absolute level, and treat a rising FCI as a bill coming due. It is the metric that keeps physical decay from ambushing an otherwise healthy deal.

Tracking deferred maintenance against replacement value across a whole portfolio — and turning it into a funded capital plan instead of a reactive scramble — is exactly what Portfoliq's capital planning is built to do.