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Obwalden

Renovation works in Sarnen

Local housing stock

In Sarnen, the federal building register lists 2'134 residential buildings and 5'278 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

52 %built before 1980
23 %heated by oil or gas
36 %electric hot water
3.9 %with declared solar thermal

Age of residential buildings

52 % built before 1980

  • Before 191919 %
  • 1919–19456 %
  • 1946–19607 %
  • 1961–19709 %
  • 1971–198011 %
  • 1981–199013 %
  • 1991–200012 %
  • 2001–201010 %
  • Since 201113 %

Construction year does not reveal past renovations: check the current insulation condition.

Main heating energy

39 % · Heat pump

  • Heat pump39 %
  • Heating oil23 %
  • Wood20 %
  • District heating10 %
  • Electricity7 %

This distribution describes recorded buildings, not your system's consumption or efficiency.

Heating and hot water: which energies?

EnergyHeatingHot water
Heating oil23 %17 %
District heating10 %11.6 %
Heat pump39 %17.7 %
Electricity7 %36 %
Wood20 %12.2 %
Solar thermal0 %4.5 %

Each line gives the share of buildings using that energy, separately for heating and for hot water. The two columns do not always reach 100%: some buildings combine two systems, or reported none.

Type of heating system

  • Heat pump39.1 %
  • Boiler (unspecified)36.9 %
  • Heat exchanger (district)9.6 %
  • Stove6.7 %
  • Central electric heating6.4 %
  • Direct electric heaters1 %

A standard non-condensing boiler is usually older and less efficient.

Houses or apartment buildings?

  • Single-family houses50.5 %
  • Two-dwelling houses24.1 %
  • Apartment buildings (3+)25.4 %

13 % of buildings mix housing with shops or offices.

The typical building

storeys (median)
3
median footprint
125 m²
median dwelling area
100 m²

Dwellings by number of rooms

3.7 %1 rm
11.3 %2 rm
22.4 %3 rm
30.6 %4 rm
32 %5+ rm

Dwellings per building

  • 1 dwelling50.5 %
  • 2 to 438.4 %
  • 5 to 97.7 %
  • 10 to 192.9 %
  • 20 or more0.5 %

Renovations, heritage and volumes

For homeowners in Sarnen, RegBL data provides vital context for renovation planning. With 436 out of 1124 known buildings designated under heritage protection, contacting municipal authorities early is essential for permit compliance. The median house volume of 894 m3 helps determine the scale required for insulation or heating system upgrades. Please be aware that data coverage is partial; only 15 buildings are officially measured according to the SIA 416 standard, and no specific renovation years are recorded for these properties. Always consult local municipal services early in your project to ensure all legal requirements are addressed.

436
buildings flagged as protected
status known for 1'124 of 2'134 buildings; check with the municipality
894 m³
median house volume (SIA 416)
measured for 15 of 1'077 houses

Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.

Renovating in Sarnen: what to know

Planning works in Sarnen, canton of Obwalden? Before requesting quotes, local context helps: climate drives the value of insulation and heating, cantonal rules govern boiler replacement, and tax deductions can noticeably reduce the bill.

Choose your works in Sarnen