Saulius Raslanas

Evaluating the alternative solutions of wall insulation by multicriteria methods

Abstract The economic effect of buildings’ renovation largely depends on implementation of energy saving methods and devices. A very high economic effect is achieved by wall insulation. In this respect, it is even higher than the replacement of windows. The alternative solutions of wall insulation of buildings differ in the materials used, labour expenditure and other aspects. The cost of renovation depends on the solutions made. The criteria describing the available wall insulation alternatives may have different values. Moreover, they may change in different directions, i.e. a higher value of some criteria denotes a better state, while for others they mean a worse situation. In this environment, a compromise variant is required, which can be found by multicriteria evaluation methods. To reduce the effect of various methods on calculation results, it can be recommended to assess the object (or phenomenon) considered by several different methods, with a subsequent determination of the average estimate val...

Method and system for Multi-Attribute Market Value Assessment in analysis of construction and retrofit projects

Abstract Multi-Attribute Decision-Making (MADM) methods prioritize the alternatives of comparative projects quite accurately. Problems arise when there is a need to determine the utility degrees and market values of the project alternatives. This becomes especially important for establishing the market value of real estate property in tender offers. However, the available MADM methods cannot accomplish this. Thus the authors of this article developed the MAMVA method, which permits determining the utility degrees and market values of project alternatives, and also developed a system on the basis of this developed method. This article presents the proposed Multi-Attribute Market Value Assessment (MAMVA) Method and the Decision Support System for Construction and Retrofit Projects (DSS-CRP). It also presents a case study to demonstrate the effectiveness of this method and system. The application of the MAMVA Method and DSS-CRP System for prioritizing and for determining the utility degrees and market values of construction and retrofit projects under consideration for financing by the European Economic Area (EEA) and Norway Financial Mechanism Grant made it possible to decrease the amount of requested support. This article also presents the analysis and comprehensive assessment of the noted construction and retrofit projects. These were performed in consideration of the entire life cycle of a project and of needs satisfaction relevant to all the groups interested in a project. The developed MAMVA Method and DSS-CRP System permit assessing the appropriateness of projects under analysis in conceptual and qualitative forms. This method and system automatically submit the values of the project alternatives.

Evaluation of investments into housing renovation

The relevant objectives of a housing strategy is to vouch the effective usage of the present housing, maintenance and renovation. The selection of the means for building and residential environment renovation is dictated by the drawbacks of their present state, out‐of‐date designed decisions, natural physical deterioration. While fixing the optimal renovation prices from the aspect of market value increase, the main indicator, limiting the size of investments into building renovation, is the difference between market values after and before renovation. The difference between 1m-super-2 of market value of a building of new construction and the average price of 1m-super-2 of a building of old construction and the cost of renovation means for it will decide the size of the packet of the investments into renovation.

Residential Areas with Apartment Houses: Analysis of the Condition of Buildings, Planning Issues, Retrofit Strategies and Scenarios

Modernisation of apartment houses is a particularly relevant issue both in Lithuania and many other countries. To make it more efficient, the modernisation of apartment houses must be integrated--an entire block or residential area must be renovated and the principles of sustainable development must be followed. This article dwells on the issues related to retrofit planning in residential blocks/areas and analyses the condition of apartment houses and their environment. The article also proposes strategies for retrofit of residential areas with apartment houses. The strategies aim to improve the living standards and the quality of environment, to cut energy consumption and Co 2 emissions, to maintain mixed social structure, to integrate new buildings into the existing environment in a sustainable manner, to develop an urban centre of a residential area as a functioning part of the city, to develop democratic planning and to seek close cooperation of modernisation partners. The scenarios based on relevant strategies must define the measures of retrofit, their priority and their potential effect.

Web-based intelligent DSS for real estate

By finding, capturing, and sharing explicit and tacit knowledge, real estate companies can significantly improve customer results. One of the main roles of explicit and tacit knowledge management in real estate sector is sharing best practice. Throughout the world there are many examples of the adoption of the best practice by the major players (appraisal services, brokers, consulting, facility management, insurance, matching/listing services, mortgages, etc.) in real estate. In order to demonstrate the application of best practice, explicit and tacit knowledge in a real estate sector, a Web-based Intelligent DSS for Real Estate (IDSS-RE) will be considered as an example.

Research of market value of multistory housing in Vilnius

Summary Over the recent years the market of multistory housing in Vilnius has developed intensively. For several years the VGTU Property Valuation Science Centre is doing the research into the market of multistory housing of Vilnius applying the regressive‐correlative analysis. The location (neighborhood), a house type, the year of construction and the condition of the flat have the biggest influence on flat pricing. During the analysis process of selling prices in separate neighborhoods of Vilnius similar results of variations in price curves are received. The dynamics of flat pricing in Vilnius over the last 7 years indicates the price cycle which lasted for 6 years ‐ from 1999 to 2004. During the first two years (till 2001) prices were decreasing. Later, the increase in pricing began and is lasting til now. During the year 2004 an average market value of 1 m2 of flats in residential zoning districts of Vilnius (2366 Lt) has risen by 28% in comparison to 2003 value (1705 Lt). This year the value reached...

Peculiarities of private houses valuation by sales comparison approach

Abstract Sales comparison approach is the most often used approach in private houses valuation practice. This article discusses cases of sales comparison approach method application; its methodology as well as key factors to be considered in objective private houses valuation. Furthermore problem of not sufficient comparative sales prices in neighborhood is discussed emphasizing on its influence to appraised object value reliability. In order to avoid incorrect valuation basing on experience of the USA and other foreign countries some proposals for Lithuanian valuation methodology were given: to establish an exact number of comparative objects, to distinguish the key factors to be considered in every special private houses valuation case and to establish variance limits between appraised object value and comparative sales prices. In order to guarantee real estate market transparency professional appraisals organizations must be established to be responsible for real estate market research as well as analy...

Sustainability assessment for recreational buildings

ABSTRACT A large amount of natural resources and energy is wasted during and after the building construction process which might cause environmental problems such as climate changes. In order to achieve higher standards of environmental protection a range of building assessment systems has been established. However, they are mostly connected with the efficiency of an environmental protection and consumption of resources. Only few of them have limited possibilities to assess social and economic sustainability. A sustainable building includes aspects of environment, economy and society and therefore requirements to its assessment systems should be complex. We suggest that sustainability principles, that is, environmental, social and economic sustainability, should be estimated in the same equal weightings. The authors of this article created a model for assessing the sustainability for recreational buildings. Our model was created, in collaboration with experts, using breakdown, compensation and the analytic hierarchy process methods. The sustainability of Druskininkai Snow Arena (Lithuania) was assessed using a sustainability assessment system based on the proposed model.

The determination of rents in shopping centers during recession period in Lithuania

This research examines how to relieve the economical pressure to the market of shopping centers by choosing one of the percentage rent forms. Retail rents have two rental components typically: base rent and overage rent, which is equal to some predetermined percentage on sales and is paid once the tenant reaches some level of sales. Both of these components are related to many factors which are considered in international practice. The determination of the percentage rents in Lithuania is much more complicated because the most important information about retail segments of the shopping centers (sales per square meter, gross leasable area and rental prices) is not publicly available. The goal of this research was to analyze the US experience and data that is available on percentage rent determination and to adapt it to the Lithuanian market by implementing required adjustments.

Peculiarities of morgage valuation

Abstract Valuation for mortgage purposes is a very important part of the work of a surveyor in general practice. The property is valued at the date of inspection, but bearing in the future ‐ will the value be maintained and easily realizable. This work considers the important aspects of the approach to such valuation and the factors witch the valuer should take into account. In UK open market valuers use value as the basics of mortgage valuation, but possible diminution of value cannot be ignored. A valuer must inform the lender about special circumstances and the risk and duty of care, of the prospective purchase, which may base his decision to purchase on the valuers report. In Germany the lending value is always established on the basis of real value (cost approach and income approach) (.dual pillar principle.), with both values being calculated independently of each other (control function). Depending on the type of property, the Mortgage Lending Value (MLV) will as a rule be derived through cost‐ or...