Buying an older home in Norway: what to check first (2026)

When you buy an older home in Norway, your job is to understand what you can expect of a home of the same age, and to use the condition report to prepare the viewing. An older home more often gets TG2 and TG3 on the parts that wear first: the bathroom, roof, drainage, pipes and electrics. The risk of several at once tends to peak when the home is around 30-40 years old, because several building parts reach the end of their service life at roughly the same time.

It is about age, not a particular year class

There is no single number that makes a home “too old”. An older home is not worse than a new one, it has simply come further in its life cycle, and several building parts are nearing the point where they need maintenance or replacement. So the most useful way to think is relative: what is normal for a home of this age, and where does this particular home stand compared with that?

You find that answer in the condition report. The older the home, the more it matters to read the age and the assessment of each part, rather than just counting the number of deviations.

The five parts that cost the most

The biggest costs in an older home gather around five building parts. This is where you should read most closely, and where an older home most often gets TG2 and TG3.

Building part	What to look for	Typical sign in the report
Bathroom and wet rooms	Membrane, drain, age of renovation	TG2 on older bathrooms without a documented membrane
Roof	Age, covering, signs of moisture	TG3 with visible damage or end of service life
Drainage	Damp in the basement, age of drainage work	TG2/TG3 where drainage is old or missing
Pipes	Age of pipes, risk of leaks	TG2 when pipes near the end of their life
Electrics	Age, match with today”s standard	TG2/TG3 on old systems

An older bathroom without a membrane can sit at TG2 even if it does not leak today, because its service life is over. A roof with visible damage often lands at TG3. Read the explanation under each item, and note the age: it tells you how close a cost lies.

Use the cost estimates, and price in the rest

From 2026, the surveyor must give a cost estimate for every TG3, but not for TG2. On an older home with several TG3 items, the sum of those estimates is a concrete figure you should bring into your bid. TG2 items carry no price tag in the report, so you assess those yourself or with a tradesperson.

An older home with several TG2 and TG3 items is not a “no”. It can be a good buy if the price reflects the work ahead. The point is to price in the maintenance you can expect, so you bid on the home as it actually is.

The report does not replace the viewing

The condition report is a good starting point, but it does not cover everything. Some areas may be marked “not inspected”, and that is a gap in what you know, not a guarantee that all is well. On an older home your job is to use the report to prepare your own viewing: what do you want to look at more closely, what do you want to ask about, and should you bring a tradesperson if the report points to heavy items like the roof or drainage?

Remembering that you have a duty to investigate makes this more important still. Anything stated clearly in the report is treated as known to you, so you cannot complain afterwards about a bathroom you knew had TG2. Hidden defects that neither you nor the seller knew about, on the other hand, may give you a claim under avhendingslova, with an absolute deadline of five years after takeover.

Heimer reads the sales prospectus and gives you the total price, the TG findings and the monthly cost, so you know what to investigate on an older home before you bid. Paste the listing.