Estimate renovation costs in Lenzburg

Local housing stock

In Lenzburg, the federal building register lists 1'562 residential buildings and 5'679 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

64 %built before 1980

62 %heated by oil or gas

30.3 %electric hot water

1.7 %with declared solar thermal

Age of residential buildings

64 % built before 1980

Before 191916 %
1919–194518 %
1946–196013 %
1961–19709 %
1971–19808 %
1981–19905 %
1991–20008 %
2001–20109 %
Since 201113 %

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

Main heating energy

45 % · Gas

Gas45 %
Heat pump22 %
Heating oil17 %
District heating11 %
Wood3 %
Electricity2 %

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

Heating and hot water: which energies?

Energy	Heating	Hot water
Gas	45 %	37.6 %
Heating oil	17 %	12.7 %
District heating	11 %	8.3 %
Heat pump	22 %	7.1 %
Electricity	2 %	30.3 %
Wood	3 %	2.2 %
Solar thermal	0 %	1.3 %

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)64.2 %
Heat pump22 %
Heat exchanger (district)10.8 %
Central electric heating1.3 %
Condensing boiler0.7 %

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

Houses or apartment buildings?

Single-family houses63.7 %
Two-dwelling houses7.2 %
Apartment buildings (3+)29.1 %

11.8 % of buildings mix housing with shops or offices.

The typical building

storeys (median): 3
median footprint: 122 m²
median dwelling area: 94 m²

Dwellings by number of rooms

5.7 %1 rm

16 %2 rm

31.2 %3 rm

25.7 %4 rm

21.5 %5+ rm

Dwellings per building

1 dwelling63.7 %
2 to 415.5 %
5 to 911.6 %
10 to 196.3 %
20 or more2.9 %

Renovations, heritage and volumes

For your renovation plans in Lenzburg, official building registry data provides vital insights. With 219 buildings listed under heritage protection, it is essential to contact the municipality early to clarify permit requirements. The median building volume is 820 m3, a figure based on 6 buildings measured according to the SIA 416 standard, indicating that data coverage is partial for this metric. Understanding these values helps you accurately assess the scale of your planned heating and insulation upgrades, ensuring you approach your renovation project with the correct regulatory expectations and realistic dimensional estimates from the start.

219

buildings flagged as protected

status known for 1'562 of 1'562 buildings; check with the municipality

820 m³

median house volume (SIA 416)

measured for 6 of 995 houses

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

Renovating in Lenzburg: what to know

Planning works in Lenzburg, canton of Aargau? 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 Lenzburg