Energy-efficient renovation
Calculate costs for Bavaria 2026
Costs per m² for old buildings and single-family houses · DIN 276 bank-compatible · Use KfW funding · Savings & CO₂ reduction
Energy-efficient renovation of a house: Without exact figures, it can be expensive
In the case of energy-efficient renovation or building renovation , many owners underestimate the real costs per m² for the desired energy-efficient renovation . Especially in the case of energy-efficient renovated old buildings (houses before 1995), average values in 2025/2026 are 200–500 €/m² for partial renovations (insulation + heating) and 400–1,000+ €/m² for comprehensive measures. Without transparent calculations, there is a risk of surprises, rejections of subsidies or bad bank discussions.
Our free renovation calculator provides reliable figures in minutes: total costs, per m², annual savings and CO₂ reduction – ideal for properties within Bavaria with regional prices and subsidies.
1. Enter property data – the realistic basis
Upload living space (ground floor 120–200 m²), year of construction (often 1960–1990 in Bavaria), zip code, building type & floor plans – in 2 minutes, the basis for precise cost calculation for energy-efficient renovation is available.
2. Put together individual renovation options
Current heating system (natural gas, oil, pellet?), age of the systems, hot water, electricity & water pipes – choose exactly what you are planning. This gives you realistic costs for insulation, windows, heat pumps, etc.
Tip: Combine measures – this maximizes funding and savings!
Transparent Costs & Savings
Immediately you can see: total costs (example: €144,200), costs per m², annual energy savings (eg €7,000–10,000) and CO₂ reduction.
Perfect for making decisions, banking & energy consultants.
DIN 276 overview – exactly what banks and funding agencies need
With one click: Costs according to KG 300 (building constructions), KG 400 (technology), KG 700 (ancillary costs) – suitable for banks for financing & KfW applications 2026 (up to 70% subsidy possible for heating system replacement).
Example: €144,200 clearly structured – massively increases your chances of funding.
Frequently asked questions about energy-efficient renovation in Bavaria
What are the costs of energy-efficient renovation per m² in 2026?
Partial renovations (eg insulation + windows) are 200–500 €/m², comprehensive renovations (incl. heat pump) are 400–1,000+ €/m² living space. Our calculator gives you an exact estimate for your building in Bavaria.
What annual savings are possible?
Depending on the measures and the condition of the building, annual energy savings of €3,000–10,000 are realistic – especially when replacing the heating system and insulation.
What KfW funding is available for energy-efficient renovation in 2026?
Up to 70% subsidy for heating system replacement (eg heat pump), 15–45% for building envelope. Programs such as KfW 261/458 continue – apply before the start of the restructuring! Combine with BAFA for max. funding.
Do I need an energy consultant for funding & banking?
Yes – often mandatory for higher subsidies (iSFP bonus) & DIN 276. Our calculator is ideal preparation and saves time and costs in consulting.
What are the obligations of GEG 2025/2026?
Heating >30 years old often has to be replaced; Minimum standards apply to >10% renovation of the shell. No complete renovation obligation by 2030 - but worthwhile!
Calculate your renovation costs now
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Realistic Figures for Bavaria • Optimal Preparation for Bank & Funding
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