Preservation of substance

Structural Preservation - Structural preservation refers to all measures aimed at maintaining a building’s structural integrity in its current condition and preventing further deterioration. It includes regular maintenance, preventive maintenance, and timely repairs. Unlike modernization (improvements beyond the original condition), preservation of the building’s structure focuses on maintaining value-not increasing it.

Preservation Measures

Typical preservation measures include: Roof - regular inspection and replacement of individual tiles, cleaning of gutters, and repair of roof waterproofing. Facade - painting every 10-15 years, repairing damage to the stucco, maintaining window seals and silicone joints. Building services - annual heating system maintenance, inspection of the electrical system, checking water pipes for corrosion, maintenance of elevators and common areas. Basement - Monitoring humidity, testing drainage and waterproofing systems. Outdoor facilities - Maintenance of paths, fences, and drainage systems. For well-maintained buildings, the costs of property maintenance amount to approximately 1.0-1.5% of the building’s value per year.

A structured maintenance plan helps owners plan maintenance measures proactively and spread costs evenly over the years. Surprisingly high costs almost always arise when minor damage is ignored for too long: A broken roof tile that is not replaced can cause water damage after heavy rain, increasing renovation costs by 20 to 30 times the original repair expense.

Property maintenance begins with documentation: Those who systematically record maintenance measures, repairs, and inspections create a basis for property valuation, simplify communication with contractors, and can demonstrate proper operation to the building insurance company in the event of damage. Especially for multi-family homes under condominium management, record-keeping is a legal requirement-the collection of resolutions must contain all relevant decisions regarding maintenance.

Impact on Property Value

Consistent property maintenance has a direct impact on the market value: A well-maintained building has a longer remaining useful life and thus a higher property value. Appraisers take the condition of the property into account during the valuation-a building with regular maintenance can have a remaining useful life that is 10-20 years longer than a neglected property of the same age. Conversely, failure to maintain the property leads to a maintenance backlog, which is factored into the valuation as a deduction and depresses the selling price.

When marketing a property, the visible condition of the building sends a strong signal to potential buyers: A well-maintained building conveys reliability and reduces the buyer’s willingness to negotiate on price. Conversely, a neglected property gives the buyer grounds for significant price reductions.

In the context of energy efficiency, property maintenance takes on an additional dimension: Regularly maintained heating systems operate more efficiently, well-maintained window and door seals reduce heat loss through ventilation, and intact insulation retains its effectiveness. Those who consistently maintain the building’s condition also avoid excessive energy consumption-an aspect that is becoming increasingly relevant in light of rising energy prices and stricter requirements for building energy efficiency (GEG).

Practical Tip for Property Owners in Nuremberg

We recommend that property owners in the Nuremberg metropolitan area maintain an annual maintenance schedule and not postpone property maintenance measures. Nuremberg sandstone buildings in particular (often found in the Old Town and Südstadt) require regular facade maintenance, as the soft sandstone weathers more quickly than hard stone or clinker due to weather conditions. For apartment buildings, we recommend an annual inspection with a written report-ideally in the spring after the frost period, when frost damage becomes visible.

The costs of preventive maintenance are a fraction of the costs incurred when damage escalates: A timely roof repair for 500 euros prevents water damage costing 15,000 euros. Nuremberg-based tradespeople are currently very busy-those who sign regular maintenance contracts with local tradespeople ensure availability and often also more favorable terms than for emergency calls.

Frequently Asked Questions

What is the difference between maintenance and modernization?

Maintenance preserves the existing condition (e.g., replacing defective roof tiles, repainting the facade, servicing the heating system). Modernization improves the condition beyond the original level (e.g., installing underfloor heating, triple-pane windows instead of single-pane, smart-home retrofitting). This distinction is relevant for tax purposes: maintenance is immediately deductible as maintenance expenses, while modernization must be depreciated over its useful life as construction costs-unless it is so high in the first three years after acquisition that it qualifies as acquisition-related construction costs.

How much should I budget annually for property maintenance?

As a guideline, 1.0-1.5% of the building’s value per year applies for well-maintained buildings. For a single-family home with a building value of 350,000 euros, that amounts to 3,500-5,250 euros annually. Older buildings (over 30 years old) tend to require more. In condominium complexes, property maintenance is financed through the maintenance reserve-check whether the allocated reserve is realistic. An insufficient reserve is a clear red flag when purchasing a condominium.

Is property maintenance tax-deductible?

Yes, for rental properties, property maintenance measures are immediately deductible as business expenses in the year of payment (maintenance expenses). Alternatively, the expenses can be spread over 2-5 years (§ 82b EStDV). For owner-occupied properties, contractor services for property maintenance are deductible as a tax credit at 20% of labor costs (max. 1,200 euros/year) under § 35a EStG. Material costs are not deductible-only the labor portion counts.

What is a maintenance backlog and what are its effects?

A maintenance backlog arises when necessary maintenance measures have been neglected for years and the need for them has accumulated. When determining the property’s value, the estimated renovation costs are deducted from the market value-often with a surcharge, because neglected damage is usually more extensive than initially visible. Buyers demand significant price reductions when a backlog is evident. Appraisers determine the maintenance backlog through visual inspection and estimate the costs of restoring the property to proper condition. It is therefore worthwhile for sellers to address minor defects before the sale to avoid price reductions and strengthen their negotiating position.

Back to the Real Estate Glossary.