Annual cost

Annual cost (årskostnad, abbreviated ÅK) is the total yearly cost of owning and operating a building, calculated across its full service life. It includes capital costs (depreciation and interest on the investment), management, operation, maintenance, development, energy and insurance, and is the most important summary figure in analyses of building and property management.

The terminology and the cost breakdown come from Norsk Standard NS 3454 Livssykluskostnader for byggverk (life cycle costs for construction works), which was withdrawn in September 2023. The NS 3454 split into ten main chapters (0 to 9) is still widely used as a reference framework in Norwegian FDV practice (management, operation and maintenance): capital costs, management, operation, maintenance, development, supply, cleaning, service, potential and disposal. The annual cost is the sum of these over one year, often expressed in kroner per square metre of UFA to make figures comparable across buildings.

The capital cost is calculated as the annuity of the investment over the expected service life. A new building costing 200 million kroner, with a 60 year service life and 4% interest, gives an annual capital cost of about 8.8 million kroner. Operating costs are added on top: typically 800 to 1,500 kroner per m² UFA per year for office buildings, more for hospitals and laboratories, less for warehouses. Energy alone accounts for 100 to 300 kroner per m², depending on the building's energy rating and heating solution. Management costs, insurance and property tax come in addition.

One important point is that the annual cost is an accrued figure, not a cash flow. It spreads one-off expenses (roof replacement every 30 years, facade refurbishment every 40) evenly across the service life. That gives a more realistic picture of the real operating cost than the accounting cost from a single year, where periodic maintenance costs have either not yet occurred or dominate completely. Used correctly, the annual cost shows which building is cheapest to own over time, not just which is cheapest to build.

The term is used often in three contexts:

• Facility management uses annual cost as a benchmark against its own buildings and those of others. Figures come from BEF Norge, Multiconsult's Holte figures and the industry's own key figure databases. Comparison per m² UFA lets a municipality see whether the operating cost for a school building is above or below the average.
• LCC analyses for new builds and refurbishment use annual cost or the annuity method to compare bids. A bid with a higher investment but lower energy use can be cheaper across the service life.
• Commercial property analysis uses the annual cost as an input to cash flow models, to calculate net operating income (NOI) and for valuation via yield. A buyer assessing a property needs to know whether the stated operating costs are normalised or owner specific; a building with deferred maintenance shows artificially low costs in the short term.

The standard is the framework, but not the final word. Many managers use simplified models with three or five chapters instead of ten, especially in portfolio analyses. What matters is that the cost definition is consistent across the buildings being compared, and that the investment part is annuitised correctly. Costs excluding capital cost are often called FDVU cost (forvaltning, drift, vedlikehold, utvikling: management, operation, maintenance and development) and are a subset of the annual cost.

In Placepoint you can structure building and portfolio information in the property panel and the building panel as a basis for your own annual cost models; you build the model itself in your spreadsheet or FDV system.

How it looks in Placepoint

In Placepoint you find this in Property panel:

From Placepoint's dictionary: Annual cost

More information: Standard Norge: NS 3454, BEF Norge, Multiconsult / Holte: key figures for FDV

English: Annualised cost (per NS 3454).

Common questions

What is annual cost?

Annual cost is the total yearly cost of owning and operating a building across its full service life, spread evenly per year. It includes capital, management, operation, maintenance, development and energy, calculated in line with NS 3454.

What is the difference between annual cost and FDVU cost?

FDVU covers management, operation, maintenance and development, that is, only the operation and maintenance parts. Annual cost also includes the capital cost (the annuity on the investment) and is therefore a broader measure of what the building costs to own in total.

Why accrue large maintenance expenses?

Roofs, facades and technical installations are replaced at intervals of 20 to 50 years. If the cost is only recorded in the year it occurs, the operating cost looks artificially low in the years between. Accrual gives a more realistic and comparable picture over time.

What is a typical annual cost for an office building?

For a modern office building, the total annual cost is often in the range of 2,000 to 3,500 kroner per m² UFA per year, of which operation and maintenance typically account for 800 to 1,500 kroner. The figure varies a lot with energy rating, location and capital structure.

Where can I find comparable key figures?

BEF Norge, Multiconsult's Holte figures and industry associations publish key figures for different building types. Comparison requires that the definition and scope are the same; always check whether capital cost and accrued maintenance are included in the figures.