Estimate renovation costs in Altendorf

Local housing stock

In Altendorf, the federal building register lists 1'312 residential buildings and 3'479 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

34 %built before 1980

46 %heated by oil or gas

38.7 %electric hot water

1.4 %with declared solar thermal

Age of residential buildings

34 % built before 1980

Before 19198 %
1919–19454 %
1946–19604 %
1961–19706 %
1971–198012 %
1981–199018 %
1991–200017 %
2001–201018 %
Since 201113 %

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

Main heating energy

33 % · Heat pump

Heat pump33 %
Heating oil31 %
Gas15 %
Wood13 %
Electricity6 %
District heating2 %

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

Heating and hot water: which energies?

Energy	Heating	Hot water
Gas	15 %	10.8 %
Heating oil	31 %	28.1 %
District heating	2 %	1.8 %
Heat pump	33 %	7.5 %
Electricity	6 %	38.7 %
Wood	13 %	8.9 %
Solar thermal	0 %	1.5 %

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

Boiler (unspecified)54.4 %
Heat pump33.4 %
Central electric heating5.5 %
Stove3.7 %
Heat exchanger (district)2.1 %
Direct electric heaters0.5 %

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

Houses or apartment buildings?

Single-family houses61.7 %
Two-dwelling houses13.9 %
Apartment buildings (3+)24.3 %

13.2 % of buildings mix housing with shops or offices.

The typical building

storeys (median): 3
median footprint: 132 m²
median dwelling area: 119 m²

Dwellings by number of rooms

2.3 %1 rm

11 %2 rm

21.4 %3 rm

34.1 %4 rm

31.2 %5+ rm

Dwellings per building

1 dwelling61.7 %
2 to 421.7 %
5 to 910.7 %
10 to 195.6 %
20 or more0.3 %

Renovations, heritage and volumes

For your renovation plans in Altendorf, federal building registry data provides vital insights for your budget. The median house volume is recorded at 1250 m3 according to the SIA 416 standard, which is essential for scaling heating and insulation requirements. Please be aware that data coverage is partial, as 800 buildings rely on other or unknown standards. Regarding heritage protection, information is missing for most of the housing stock. We strongly recommend contacting the municipal authorities early in your planning process to clarify any building restrictions or permit requirements before proceeding with your renovation project.

0

buildings flagged as protected

status known for 113 of 1'312 buildings; check with the municipality

1'250 m³

median house volume (SIA 416)

measured for 10 of 810 houses

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

Renovating in Altendorf: what to know

Planning works in Altendorf, canton of Schwyz? 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.

Renovation works in Altendorf