Artificial light

The basic prerequisite for good vision is an adequate level of brightness – the so-called lighting level – geared to the visual functions. A consistently high lighting level leads to fewer accidents, increases the subjective feeling of safety and protects against crime in the dark. In addition, street lighting is also an essential element of urban design, accentuating space and squares and thus contributing to the quality of life.

However, following the Federal Immission Control Act, light is included in the sectors emissions and immissions: Light immissions from artificial light sources can cause considerable nuisance to adjacent residential buildings. Frequent sources of artificial light are illuminated advertising installations, object lighting systems or floodlighting of sports fields. They can lead to disturbing brightness or even glare.

Sources with changing or blinking luminosity are especially annoying.


Shading and daylight

In addition to the assessment of disturbing effects caused by artificial light, it is becoming increasingly important to assess whether there is an adequate supply of natural sunlight in given locations.

Urban space is characterized by very densely constructed, often towering buildings. As a result, apartments and offices can be affected by a lack of natural sunlight. Planning of a new building in such a dense area can therefore lead to additional shading for the surrounding neighborhood, resulting in insufficient natural lighting in existing buildings according to DIN 5034 in the future. Moreover, a sufficient supply of daylight, which is necessary for healthy living conditions, must also be guaranteed for your own planning. In close cooperation with the planning and client parties, areas of conflict are identified, solutions are worked out in order to achieve good living and working conditions with a natural light supply and to enable harmonization of planning in the neighborhood.



In addition to an adequate supply of daylight, glare caused by sunlight is a growing issue. In urban areas, a disturbing glare can be caused by the sun reflecting on glass facades, glass domes, chimneys made of shiny metals, etc., diminishing the quality of living and working. For planning of new buildings with reflecting facades and surfaces, we can check the compatibility of your planning with the protection requirements of the neighborhood as part of a survey on glaring elements.

While glare in recreation rooms can be disturbing, glare in road traffic represents a potential danger to road users. Solar parks with their reflecting panels and their large dimensions can have a particularly critical effect on roads. We support you in the planning of solar parks so that no glare occurs on nearby traffic routes.

Due to our experience with solar parks, glaring facades/surfaces and our in-house calculation software, numerous measures can be taken to solve any issues.


Within the scope of planning (feasibility studies, conflict analyses), development plan and permit procedures for facilities (commercial, leisure and sports facilities, infrastructure facilities), we provide consulting services which incorporate the forecast, dimensioning, assessment and optimization of artificial/natural light sources and their effects (shading/glare).

Our Scope of Services

  • Measurement of immissions from artificial light sources, room illumination and glare in accordance with the LAI guidelines on the measurement, assessment and reduction of light immissions and DIN 5032, Part 7
  • Assessment of the current situation or the light preload in order to establish the facts
  • Simulation of outdoor lighting situations with three-dimensional dispersion models
  • Dimensioning and optimization of light sources
  • Shading investigation including simulation of the shadow cast by wind turbines and daylight simulations, assessment according to the criteria of DIN 5034/ DIN EN 17037
  • Reflectance measurements of exterior facades based on luminance and illuminance
  • Glare assessment for reflecting surfaces (solar parks, photovoltaic systems on roofs, glass facades) and assessment according to LAI guidelines
  • Preparation of expert opinions within the scope of permit procedures, environmental assessments, development plans or in case of conflict


Artificial light

  • Lighting analysis of the lighting situation at the Viktualienmarkt in Munich, Kommunalreferat of the City of Munich
  • Floodlighting of an all-weather square, primary and secondary school in Torquato-Tasso-Strasse, Baureferat of the City of Munich
  • Lighting simulation, school campus Riem, Munich
  • Lighting simulation, Intel, Feldkirchen, County of Munich
  • Preparation of the lighting design and photometric investigation of the artificial lighting of the tank and service station Wunnenstein West

Shading and daylight

  • Shading investigation for the building project Wendl-Dietrich-Strasse, Munich
  • Shading investigation for development plan no. 42, Markt Mittenwald
  • Shading investigation/natural lighting, project-related development plan no. 28, Muenchner Strasse, Gemeinde Haar, County of Munich
  • Shading investigation/natural lighting, development plan Hans-Löffler-Haus, Wuerzburg
  • Natural light building project Goerrestrasse, Munich
  • Natural light building project Tulbeckstrasse, Munich
  • Verschattungsuntersuchung Bauvorhaben Fraunhoferstraße, Munich
  • Shading investigation for the building project Ollenhauerstrasse, Munich
  • Shading investigation for development plan Zaunkoenigstrasse, Ottobrunn
  • Shading investigation for development plan „Hotel Paradeplatz“, Wuerzburg
  • Shading investigation for the building project St.-Apern-Strasse, Cologne
  • Shading investigation for the building project Gallmayerstraße, Munich


  • Glare solar park Schesslitz, County of Bamberg
  • Glare solar park Stadelhofen, County of Bamberg
  • Glare solar park Engen, County of Constance
  • Glare solar park Stockach, County of Constance
  • Glare solar park Guteneck (urban district Oberaich), County of Schwandorf
  • Glare project-related development plan “Traunricht – Dr.-Cremer-Weg”, Markt Schwarzenfeld, County of Schwandorf
  • Glare, development plan Hans-Löffler-Haus, Wuerzburg
  • Glare building project extension of the Sick company, Freiburger Strasse, Waldkirch

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