Renovations

How much should I allow for renovation and conversion?

Parts of the building Average life expectancy Cost in % of building insurance value (new)

Interior finish, structure

Interior finish, surfaces

35 - 50 years

15 - 30 years

10

6

Heating 20 - 30 years 4
Kitchen 25 - 35 years 5
Windows and exterior doors 30 - 40 years 13
Bathroom 35 - 50 years 7

Pitched roof

Flat roof

40 - 50 years

25 - 30 years

9
Façade 40 - 55 years 8
Electrics 45 - 55 years 3
Radiators / underfloor heating 55 - 70 years 3
Building shell Rarely needs renovation 32
Total   100

Source: Basler & Hofmann AG
These figures and calculations are based on statistically established values. They are  purely indicative. The actual costs may differ significantly. The decisive factor is how much work is actually done.