Estimate renovation costs in Solothurn

Local housing stock

In Solothurn, the federal building register lists 2'863 residential buildings and 9'414 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

79 %built before 1980

78 %heated by oil or gas

26.1 %electric hot water

1.8 %with declared solar thermal

Age of residential buildings

79 % built before 1980

Before 191921 %
1919–194527 %
1946–196018 %
1961–19707 %
1971–19806 %
1981–19906 %
1991–20005 %
2001–20107 %
Since 20114 %

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

Main heating energy

56 % · Gas

Gas56 %
Heating oil22 %
Heat pump13 %
District heating6 %
Electricity3 %
Wood2 %

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

Heating and hot water: which energies?

Energy	Heating	Hot water
Gas	56 %	42.8 %
Heating oil	22 %	16.7 %
District heating	6 %	5.3 %
Heat pump	13 %	6.6 %
Electricity	3 %	26.1 %
Wood	2 %	0.8 %
Solar thermal	0 %	1.7 %

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)78 %
Heat pump12.5 %
Heat exchanger (district)5.8 %
Central electric heating1.8 %
Direct electric heaters0.9 %
Condensing boiler0.6 %

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

Houses or apartment buildings?

Single-family houses53 %
Two-dwelling houses10.3 %
Apartment buildings (3+)36.6 %
Other0.1 %

15.8 % of buildings mix housing with shops or offices.

The typical building

storeys (median): 3
median footprint: 115 m²
median dwelling area: 85 m²

Dwellings by number of rooms

6.2 %1 rm

14.5 %2 rm

34.8 %3 rm

26.6 %4 rm

17.9 %5+ rm

Dwellings per building

1 dwelling53 %
2 to 425.1 %
5 to 915.9 %
10 to 194.8 %
20 or more1.2 %

Renovations, heritage and volumes

For your renovation projects in Solothurn, the federal building register (RegBL) indicates that 3 buildings are listed under heritage protection, requiring early coordination with the municipality for permit applications. The building volume data covers 1517 houses with a median volume of 462 m3 according to the SIA 416 standard, which is essential for scaling your heating and insulation upgrades. Please note that data coverage is partial, as 1514 buildings are recorded under unknown or other standards. Since renovation year data is not available, you should conduct a thorough on-site assessment to accurately plan your specific property improvements.

3

buildings flagged as protected

status known for 112 of 2'863 buildings; check with the municipality

462 m³

median house volume (SIA 416)

measured for 3 of 1'517 houses

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

Renovating in Solothurn: what to know

Planning works in Solothurn, canton of Solothurn? 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 Solothurn