Regional factors

Regional Factors - Regional factors (also known as market adjustment factors or asset value factors) are adjustment factors used in real estate appraisals under the asset value approach to adjust the standardized asset value to actual regional market conditions. They are determined by the Appraisal Committees for Land Values based on actual purchase prices and published annually. A regional factor above 1.0 indicates that market prices are higher than the calculated asset value.

Function in the Cost Approach

In the cost approach, the preliminary cost value is first determined: land value plus construction costs of the building minus depreciation due to age. In practice, this calculated value often deviates significantly from the actual market price-in metropolitan areas, market prices are significantly higher, while in structurally weak regions they are lower. The regional factor corrects this deviation: Preliminary asset value × regional factor = market-adjusted asset value. In Munich, the regional factor for single-family homes is approximately 1.4-1.8, while in rural regions of Bavaria it is 0.6-0.9. Without the regional factor, the asset value would be unusable as a market value.

The economic rationale for the regional factor is that the market does not value a property based on construction costs, but rather on supply and demand. In sought-after locations, buyers pay significantly more than it would cost to build the structure from scratch-the premium on the land is reflected in the regional factor above 1.0. Conversely, in structurally weak regions, there are properties for which no buyer would pay the calculated construction cost-the regional factor below 1.0 reflects this discount in demand. The cost approach without market adjustment would systematically yield incorrect market values.

Determination by the Appraisal Committees

The appraisal committees determine the regional factors based on the analysis of actual purchase prices (purchase price database). They compare the preliminary asset value of sold properties with the actual purchase price paid and use this to calculate the average adjustment factor-differentiated by building type, year of construction, size, and location. The factors are published in the real estate market report and must be applied by appraisers when preparing market value appraisals (§ 14 ImmoWertV).

The quality of the regional factors depends directly on the breadth of the purchase price database. Appraiser committees in metropolitan areas with many transactions can publish differentiated and statistically reliable factors; in rural regions with few sales, the factors are subject to greater uncertainty. In the absence of current local factors, appraisers must rely on regional benchmarks or older data and provide appropriate justifications in their reports.

Distinction from Other Market Adjustment Tools

The regional factor is specific to the cost approach. In the income approach, the property yield serves a similar function: it adjusts the capitalized net income to regional market conditions. High property interest rates reflect lower demand and higher yield requirements; low property interest rates indicate that buyers are willing to pay more for rental income. In the comparative value method, a separate adjustment factor is not required, as the comparable prices already reflect regional market conditions.

The choice of the correct valuation method also influences the significance of the regional factor: For single-family and two-family homes, for which the cost approach is typically used, the regional factor is central. For multi-family homes and commercial properties, the income approach takes precedence, and the property interest rate handles the market adjustment. Appraisers often combine both methods and weight the results based on marketability and available data.

Practical Tip for Property Owners in Nuremberg

We recommend that property owners in the Nuremberg metropolitan area take into account the current asset value factors of the Middle Franconia Appraisal Committee when estimating their property value. In Nuremberg, the factors for single-family homes range from approximately 1.0-1.3 depending on the neighborhood-higher in prime locations such as Erlenstegen or near the Tiergarten, and closer to 1.0 or below in outlying areas like Langwasser-Süd. The factors differ again for condominiums.

The current values are available via the Appraisal Committee’s real estate market portal (for a fee). When appraising your property for sale, we use these factors to provide you with a realistic price estimate-not values determined during a different market phase. Especially following the market correction since 2022/2023, current factors are significantly lower than those from the boom years, which must be taken into account when determining the price. We are available at any time for a non-binding estimate.

Frequently Asked Questions

Where can I find the regional factor for my property?

The regional factors are published by the Appraisal Committee in the annual real estate market report. For Nuremberg and Middle Franconia, the Appraisal Committee for Property Values under the Nuremberg Cadastral Office is responsible. The reports are subject to a fee (approx. 30-60 euros). Alternatively, you can look up the regional factor online via the BORIS portal (Bavarian Land Value Information System). Appraisers and real estate agents generally have access to the current factors.

Does the regional factor also apply to the income approach?

No, the regional factor is specific to the cost approach. In the income approach, the market value is adjusted using the property interest rate-this serves a similar function as a regional market indicator but is based on rental yields rather than cost-to-sales ratios. In the comparative value method, a separate adjustment factor is not required, as the comparable prices already reflect regional market conditions.

How much does the regional factor fluctuate?

The regional factor can change from year to year and vary significantly between neighboring areas. In recent years, fluctuations in the Nuremberg metropolitan region have been approximately 5-10% per year-the factors rose during boom years and fell during correction phases. Differences between Nuremberg’s districts can range from 20-40%. Appraisers must always use the most up-to-date factors available to achieve a market-based result.

Can I apply the regional factor to my property myself?

In principle, yes, if you have the current factors and can correctly calculate the preliminary property value. In practice, determining the preliminary property value (land value, standard construction costs, depreciation due to age, modified remaining useful life) is complex and requires expert knowledge. For an initial plausibility check of your property’s value, you can use the regional factor as an approximation; for a reliable valuation, we recommend hiring an appraiser.

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