Deferred maintenance
Deferred maintenance is the sum of the maintenance work that should have been done on a building, but that has been postponed. When the roof, facade, ventilation or technical systems are not maintained in step with the wear and tear, the need builds up as a hidden debt in the building. The backlog says nothing about what the building costs to run today, but what it will cost to bring it up to a sound condition. It is therefore one of the most important figures when you assess the real value of a property.
The backlog is mapped through a condition report or condition survey, often following Norsk Standard NS 3424, where each building component is given a condition grade and an estimated cost of repair. The result is an estimate of the necessary CapEx over the coming years, usually split into immediate measures, measures within five years and longer term measures. A building with a large backlog has low running costs precisely because maintenance has been given low priority, but it carries a large bill that falls due sooner or later. This is what separates a backlog from ordinary maintenance, which is the running effort to keep the building in good order.
In a transaction, deferred maintenance is a core point in the technical due diligence. The buyer has the backlog mapped and uses the figure actively in the negotiation: a documented need for a new roof or new ventilation is deducted from the purchase price or handled through a warranty. Sellers with well maintained buildings can, for their part, use a low backlog as a selling point. The backlog is also linked to climate and energy, because many upgrades, such as added insulation or new heating systems, both remove the backlog and improve the energy performance certificate and thereby the building's position against the CRREM pathway.
For a long term owner, the point is to stop the backlog from building up, because postponed maintenance usually gets more expensive the longer it waits: a small leak that is not sealed turns into a rot damaged roof. Planned maintenance across the building's life cycle is cheaper than paying off a large backlog in one go.
From Placepoint's glossary: Vedlikeholdsetterslep
More information: Standard Norge: NS 3424 condition survey, Store norske leksikon: vedlikehold
English: Deferred maintenance (maintenance backlog).
Frequently asked questions
What is deferred maintenance?
It is the sum of the maintenance work that should have been done on a building, but that has been postponed. The backlog is a hidden debt in the building: it says what it will cost to bring the property up to a sound condition.
How is the backlog mapped?
Through a condition report or condition survey, often following NS 3424, where each building component is given a condition grade and a cost estimate. The result is an estimate of the necessary CapEx spread over time.
How is the backlog used in a transaction?
It is a core point in the technical due diligence. A documented need for a new roof or new ventilation is deducted from the purchase price or handled with a warranty. A low backlog is a selling point for the seller.
Is the backlog linked to energy and climate?
Yes. Many upgrades, such as added insulation or a new heating system, remove the backlog and at the same time improve the energy performance certificate and the building's position against the CRREM pathway.