Press by Mike Horhammer
Valuation of real estate/ properties is
in many countries/ cities the basis
for fair taxation. ... more Valuation of real estate/ properties is
in many countries/ cities the basis
for fair taxation. The property value
depends on many aspects, including the
physical real world aspects (geometries,
material of object as build) and legal/
virtual aspects (rights, restrictions,
responsibilities, zoning/development
plans applicable to the objects spaces).
The aim of this study is to investigate the
opportunities provided by the semantically
rich 3D building and cadastral models for
valuation and taxation. In this paper we
investigate the following related aspects:
1. Relationship between physical
real world objects and legal
(virtual) objects,
2. Use of (semantically rich) 2D and
3D descriptions of both physical
real world objects and legal (virtual)
objects for valuation, and
3. Maintenance of the 3D information
Conference Papers by Mike Horhammer
Valuation of the properties is known as real estate appraisal, property valuation or land
valuati... more Valuation of the properties is known as real estate appraisal, property valuation or land
valuation and is a process which focuses on determining the value of a building or a land lot.
The valuation of each real estate is required prior to any transaction as every property is
unique in terms of shape, volume, location, orientation, quality and as the transactions on real
estate occur less frequent then usual business transactions. The valuation can be accomplished
to determine the amount of mortgage loans, for setting the tax value, and also for determining
the market value for sales transactions. The earlier analysis of the authors regarding the
current valuation practices in Turkey, United Kingdom, USA, Germany, and The Netherlands
portrayed that property valuation and valuation for taxation is not currently significantly
benefiting from digital 3D Building Models and 3D Cadastres. The overall research
investigates the utilization of building/cadastral information models in derivation of
valuation-related information. Following a literature review of building and land
administration models, the paper elaborates on information requirements for valuation related
to 2D and 3D geometries and Rights, Restrictions, Responsibilities (RRRs) associated with
land lots and buildings. The papers concludes by indicating the role of “streetview” images
and 3D models in enhancing the presentation of valuation information.
Papers by Mike Horhammer
Computers & Graphics, 2015
Point cloud data are important sources for 3D geo-information. An inventory of the point cloud da... more Point cloud data are important sources for 3D geo-information. An inventory of the point cloud data management user requirements has been compiled using structured interviews with users from different background: government, industry and academia. Based on these requirements a benchmark has been developed to compare various point cloud data management solutions with regard to functionality and performance. The main test dataset is the second national height map of the Netherlands, AHN2, with 6 to 10 samples for every square meter of the country, resulting in 640 billion points. At the database level, a data storage model based on grouping the points in blocks is available in Oracle and PostgreSQL. This model is compared with the 'flat table' model, where each point is stored in a table row, in Oracle, PostgreSQL and the column-store MonetDB. In addition, the commonly used file-based solution Rapidlasso LAStools is used for comparison with the database solutions. The results of executing the benchmark on different platforms are presented as obtained during the increasingly challenging stages with more functionality and more data: mini (20 million points), medium (20 billion points), and full benchmark (the complete AHN2).
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Press by Mike Horhammer
in many countries/ cities the basis
for fair taxation. The property value
depends on many aspects, including the
physical real world aspects (geometries,
material of object as build) and legal/
virtual aspects (rights, restrictions,
responsibilities, zoning/development
plans applicable to the objects spaces).
The aim of this study is to investigate the
opportunities provided by the semantically
rich 3D building and cadastral models for
valuation and taxation. In this paper we
investigate the following related aspects:
1. Relationship between physical
real world objects and legal
(virtual) objects,
2. Use of (semantically rich) 2D and
3D descriptions of both physical
real world objects and legal (virtual)
objects for valuation, and
3. Maintenance of the 3D information
Conference Papers by Mike Horhammer
valuation and is a process which focuses on determining the value of a building or a land lot.
The valuation of each real estate is required prior to any transaction as every property is
unique in terms of shape, volume, location, orientation, quality and as the transactions on real
estate occur less frequent then usual business transactions. The valuation can be accomplished
to determine the amount of mortgage loans, for setting the tax value, and also for determining
the market value for sales transactions. The earlier analysis of the authors regarding the
current valuation practices in Turkey, United Kingdom, USA, Germany, and The Netherlands
portrayed that property valuation and valuation for taxation is not currently significantly
benefiting from digital 3D Building Models and 3D Cadastres. The overall research
investigates the utilization of building/cadastral information models in derivation of
valuation-related information. Following a literature review of building and land
administration models, the paper elaborates on information requirements for valuation related
to 2D and 3D geometries and Rights, Restrictions, Responsibilities (RRRs) associated with
land lots and buildings. The papers concludes by indicating the role of “streetview” images
and 3D models in enhancing the presentation of valuation information.
Papers by Mike Horhammer
in many countries/ cities the basis
for fair taxation. The property value
depends on many aspects, including the
physical real world aspects (geometries,
material of object as build) and legal/
virtual aspects (rights, restrictions,
responsibilities, zoning/development
plans applicable to the objects spaces).
The aim of this study is to investigate the
opportunities provided by the semantically
rich 3D building and cadastral models for
valuation and taxation. In this paper we
investigate the following related aspects:
1. Relationship between physical
real world objects and legal
(virtual) objects,
2. Use of (semantically rich) 2D and
3D descriptions of both physical
real world objects and legal (virtual)
objects for valuation, and
3. Maintenance of the 3D information
valuation and is a process which focuses on determining the value of a building or a land lot.
The valuation of each real estate is required prior to any transaction as every property is
unique in terms of shape, volume, location, orientation, quality and as the transactions on real
estate occur less frequent then usual business transactions. The valuation can be accomplished
to determine the amount of mortgage loans, for setting the tax value, and also for determining
the market value for sales transactions. The earlier analysis of the authors regarding the
current valuation practices in Turkey, United Kingdom, USA, Germany, and The Netherlands
portrayed that property valuation and valuation for taxation is not currently significantly
benefiting from digital 3D Building Models and 3D Cadastres. The overall research
investigates the utilization of building/cadastral information models in derivation of
valuation-related information. Following a literature review of building and land
administration models, the paper elaborates on information requirements for valuation related
to 2D and 3D geometries and Rights, Restrictions, Responsibilities (RRRs) associated with
land lots and buildings. The papers concludes by indicating the role of “streetview” images
and 3D models in enhancing the presentation of valuation information.