TG0, TG1, TG2 and TG3: what the condition grades mean in Norway (2026)

In Norway the condition grade (tilstandsgrad) runs from TG0 to TG3, and it tells you how far a building part deviates from what is normal for the home’s age. TG0 and TG1 are a home working as it should. TG2 is a significant deviation. TG3 is a large or serious deviation that needs repair soon. When you open a condition report (tilstandsrapport), start by finding every TG2 and TG3. That is where the money and the risk sit.

The condition report is a technical inspection written by a qualified surveyor before the sale. It assigns a grade to each part of the home: roof, bathroom, drainage, electrics and the rest. The grade does not say the home is good or bad, only how close each part is to normal condition.

What TG0, TG1, TG2 and TG3 mean

Grade	Meaning	What to do
TG0	No deviation, as new	Nothing
TG1	Minor or moderate deviation, normal wear for the age	Note it, budget over time
TG2	Significant deviation, maintenance or replacement nearing	Price it yourself, ask the surveyor
TG3	Large or serious deviation, work needed soon	Use the cost estimate in your bid, bring in a tradesperson

An older bathroom without a modern membrane can sit at TG2 even if it does not leak today, because its service life is over. A roof with visible damage or rot often lands at TG3. Read the reasoning under each item, not just the colour or the number.

TG2 is a significant deviation

A TG2 usually works today but has a deviation larger than ordinary wear. It is often about age: a bathroom, roof or pipe nearing the end of its expected service life. The report gives no cost estimate for TG2, so you have to judge what repair will cost and when it comes.

Treat TG2 as planned maintenance. A 1990s home with several TG2 items is often perfectly normal for its age. The sum of the TG2 items tells you how much maintenance is coming over the next years, and that figure belongs in your calculation of what it costs to own the home.

TG3 needs repair soon

A TG3 is a large or serious deviation where something genuinely needs doing. From 1 January 2026 the report must give a repair cost estimate for each TG3. That estimate is the single most important number in the document, because it shows an expense you are very likely to face.

A TG3 is something to investigate, not proof of a disaster. Here is how to handle it:

• Read the cause and consequence under the item, not just the number.
• Use the cost estimate as a starting point, then get your own quote from a tradesperson.
• Put the real figure into your bid.

A home with a TG3 can be a good buy when the price reflects the repair. A roof with a TG3 and a cost estimate of 200,000 kroner is not a no in itself, but it is a figure to subtract from what you are willing to bid.

Duty to investigate: what you learn, you cannot complain about

Anything stated clearly in the condition report, you are treated as knowing. You cannot complain later about a bathroom you knew was TG2. In return, a general “sold as is” reservation no longer protects the seller. Since 2022, avhendingslova section 3-9 says the reservation has no effect in a consumer purchase. If a hidden defect that was not in the report appears, you have an absolute complaint window of five years from takeover.

That is why reading the report carefully is your best protection. Read it before the viewing, while you can still put the price of the TG3 items into your bid.

Heimer reads the sales prospectus and surfaces every TG2 and TG3 finding, with total price and monthly cost. Paste the listing.