Old Building Core Renovation: Tips and Pitfalls
Berlin's Altbau apartments are sought after for high ceilings, stucco, plank floors, and generous layouts. But core renovation carries challenges that can lead to cost explosions without expert guidance.
Hazardous Materials
Pre-1993 buildings commonly contain asbestos, PAH in black parquet glue, lead in water pipes, and wood preservatives. Always commission a hazardous material survey before starting.
Structural Challenges
Wooden beam ceilings have limited load capacity. Many interior walls are load-bearing. Always engage a structural engineer before removing walls.
Heritage Protection
Many Berlin Altbau buildings are heritage-listed. All exterior changes require permits. In return, up to 100% of renovation costs can be tax-deductible.
Common Cost Traps
Budget overruns stem from undiscovered hazardous materials, hidden structural damage, moisture problems, and outdated systems. Plan a 15-25% cost buffer.
Preserving Character
Protect stucco ceilings, original plank floors, panel doors, and facade elements during renovation.
Lula Bau: Your Altbau Partner
Lula Bau GmbH brings decades of Berlin Altbau experience. Contact us for a free consultation.
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