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This paper aims to report on research that investigates the use of green clauses in leases of office and retail premises in England and Wales.

The authors examined 26 recent leases of green build properties registered at HM Land Registry. The green clauses discovered were classified and compared with the model form green clauses promoted by the London-based Better Building Partnership's Green Lease Toolkit.

Of the 26 leases analysed, 18 contained some form of green provision.

As the sample selected was not representative, a larger study is needed to detect trends in green leasing. This research method does not show the impact of green clauses on property management.

This research illustrates the types of clauses that have been used in leases but also shows that green leasing principles are not yet the industry standard. Many new, long leases still make no reference to environmental practices.

This is the first research to be done examining the green content of agreed leases and develops a methodology that can be used for future research.

The relationship between social class, prostitution and drug use is complex. The role of illegal drugs in elite prostitution is dramatically different from that found among streetwalkers. The backgrounds of the escort service girls, their relatively comfortable and safe working conditions, and the desires of their customers produces and maintains a pattern of drug use that is in sharp contrast to that found on the street.

The purpose of this paper is to present new empirical data on leases, energy management, and energy meters in the UK, with a particular focus on small and medium enterprises (SMEs) and other “minor” players. The paper develops a new segmentation model that identifies six different combinations of energy and organizational conditions.

The authors surveyed participants in an online energy management and data analytics service. A 30-question online survey gathered data from 31 respondents on three kinds of infrastructure – legal, organizational, and technical.

SMEs and other minor players are generally “data poor,” lack energy managers, and have legacy meters that are read only annually or quarterly; some rent via leases that inhibit permanent alterations to the premises, including the meter.

The research is exploratory and subject to self-selection bias. Further research is needed into: lease language, governance structures, social practices to facilitate cooperation between tenants and landlords; the scope for energy management positions in small organizations; low-cost “smart-er” meters that can be reversibly retrofitted onto existing energy meters; and the combination of these areas.

Organizations may need to augment a combination of legal, organizational, and technical infrastructures to enable better energy management.

SMEs and other “minor” energy users are important to society and the economy, yet they are often overlooked by government programs. This developing data set can help policymakers include these groups in their programs.

This paper presents a new conceptual framework for future research and new empirical data on understudied groups.

The purpose of this paper is to illustrate, by reference to practical examples, how leases of commercial buildings can be more responsive to environmental issues.

The paper explains how difficult it is within the structure and content of conventional leases to reduce the environmental impact of the tenanted commercial built environment. It explores the interplay between the content and structure of commercial leases and the behaviour of building owners, managers, tenants and occupants, illustrated through the experiences of a large Australian‐based commercial office building owner/operator.

With reference to practical examples it shows how conventional leases stifle innovation and illustrates the difficulties in drafting leases that enable a responsive approach to building management to be adopted. It shows how more fundamental changes that align and reward owners and tenants for working together for mutual benefit are required.

The paper presents a number of “model clauses” for encouraging best environmental practices and concludes with a suite of recommendations.

Although there have been conversations about green leases in recent years, there is little detailed evidence of their use in the marketplace. This paper remedies that deficiency by taking a case study approach that: illustrates the opportunities and difficulties in negotiating green leases; and shows how attempts to provide innovative building management can be hindered or supported by lease terms.

Progress in retrofitting the UK's commercial properties continues to be slow and fragmented. New research from the UK and USA suggests that radical changes are needed to drive large-scale retrofitting, and that new and innovative models of financing can create new opportunities. The purpose of this paper is to offer insights into the terminology of retrofit and the changes in UK policy and practice that are needed to scale up activity in the sector.

The paper reviews and synthesises key published research into commercial property retrofitting in the UK and USA and also draws on policy and practice from the EU and Australia.

The paper provides a definition of “retrofit”, and compares and contrasts this with “refurbishment” and “renovation” in an international context. The paper summarises key findings from recent research and suggests that there are a number of policy and practice measures which need to be implemented in the UK for commercial retrofitting to succeed at scale. These include improved funding vehicles for retrofit; better transparency in actual energy performance; and consistency in measurement, verification and assessment standards.

Policy and practice in the UK needs to change if large-scale commercial property retrofit is to be rolled out successfully. This requires mandatory legislation underpinned by incentives and penalties for non-compliance.

This paper synthesises recent research to provide a set of policy and practice recommendations which draw on international experience, and can assist on implementation in the UK.

The paper aims to explore the potential impact that the introduction of the UK's carbon reduction commitment (CRC) energy efficiency scheme will have on: energy use in the tenanted commercial built environment; and the idea of the net lease.

The paper reviews various background documents preceding the implementation of CRC in order to identify the abatement incentives established. The common structure of commercial leases and the early property market reaction to CRC are also considered in order to explore how effective the CRC scheme is likely to be in achieving the twin goals of carbon saving and landlord‐tenant collaboration.

Key to the success of the CRC scheme will be the way in which the financial and reputational drivers established by the CRC scheme incentivise landlords and tenants to make technological and social changes to reduce energy consumption. Given the variety of ways that energy is supplied to tenanted commercial property, the complexity of the CRC scheme, the traditionally adversarial relations between landlords and tenants and the “split‐incentive” of commercial leases, energy abatement opportunities are found to be significantly more limited in the leasehold context than for owner‐occupied properties. Nonetheless, the paper notes that the introduction of the CRC scheme has begun an important conversation and is an important step towards tackling energy efficiency.

The paper brings together understandings of the legal framework of commercial leases, of the property market and practice, and the landlord and tenant relationship – to consider how the CRC scheme will help to deliver the UK's goal of reducing carbon emissions.

The purpose of this paper is to identify the factors present in successful energy efficiency investments that might indicate how to resolve the landlord-tenant dilemma in existing and new commercial property.

The paper reviews literature to indicate the importance of energy efficiency in buildings and to explore the barriers to such investments, including problematic landlord-tenant relationships. Such relationships have been investigated by the International Energy Agency, and a similar approach is used here in two case studies in new and existing buildings. These studies explore the nature of landlord-tenant relationships and the importance of policy and standards of building performance.

In neither case did landlord-tenant issues constitute barriers to investments in energy efficiency, however, these investments were made for other reasons than simple cost savings. Construction of new commercial property to Passivhaus standards ensures a high-build quality and a comfortable building with low-energy costs. The added value to tenants may justify the cost of construction. The cost of investments in energy efficient buildings can also be justified by the enhanced reputation of landlords which may be more valuable than a DEC rating. In neither case was the commercial Green Deal felt to be an attractive funding mechanism.

Conclusions based on these case studies must be regarded as tentative, so future studies of successful energy efficient buildings should be undertaken to explore the motivation to invest, particularly the relative importance of indirect benefits of energy efficiency.

One of the case study buildings is exceptionally energy efficient and is the result of a particularly open and effective contractual relationship. Further study of such cases may suggest a new approach to landlord-tenant problems of energy efficiency, even in refurbishment of existing buildings.

Using a unique data set, the purpose of this paper is to test the hypothesis that tenants pay increased accommodation costs for space in energy efficient office property.

The authors obtain lease contracts for office space in central Sydney, Australia. Empirical data on annual gross face rent and contract terms from each lease are combined with building characteristics and measured energy performance at the time of lease. Hedonic regression isolates the effect of energy performance on gross face rent.

No significant price differentials emerged as a function of energy performance, leading to a conclusion that tenants are not willing to pay for energy efficiency. Six factors – tenancy floor level, submarket location, proximity to transit, market fixed effects, building quality specification and, surprisingly, outgoings liability – consistently explain over 85 per cent of gross face rent prices in Sydney.

Rent premiums from an asset owner's perspective could emerge as a result of occupancy premiums, market timing or agent bias combined with statistically insignificant rental price differentials.

Tenants are likely indifferent to energy costs because the paper demonstrates that energy efficiency lacks financial salience and legal obligation in Sydney. This means that split incentives between owner and tenant are not a substantial barrier to energy efficiency investment in this market.

This study is the first to thoroughly examine energy efficiency rent price premiums at the tenancy scale in response to disclosure of measured performance. It also presents evidence against the common assumption that rent premiums at the asset scale reflect tenant willingness to pay for energy efficiency.

The purpose of this paper is to investigate the current market development of Energy Performance Contracting (EnPC) in Hong Kong and Taiwan, focussing on four key aspects: first, the potential building energy retrofits as an investment for future savings; second, the motivations for building owners toward the use of EnPC; third, the reasons for building owners not using EnPC; and fourth, the different approaches of Hong Kong and Taiwanese governments toward the promotion of EnPC.

A dual-questionnaire survey was conducted both in Hong Kong and Taiwan, where the same set of questionnaire was sent to the key personnel of the energy services companies (ESCOs) in both regions as identified from the latest member lists of representative trade associations, supplement with 11 structured interviews.

Apart from explainable differences, the results show the top rankings by the respondents of Hong Kong and Taiwan as follows: “Potential retrofit works” including lighting replacement with efficient fluorescent and light emitting diode lamps and improvement of air-con system. “EnPC Motivations” including owners’ lack of upfront capital and use of energy savings for other purposes may yield better returns; ESCOs’ provision of turnkey services. “Reasons not considering EnPC” including worry about its complexities; lack of familiarity with EnPC and long payback periods. As for promotional efforts for EnPC, the Taiwan government has taken more initiatives to foster its use both technically and financially.

This study identifies market-related motivators and deterrents as experienced by ESCOs in implementing EnPC projects in two developed Asian economies.

This study provides insightful information for the stakeholders about the latest market development of EnPC in Hong Kong and Taiwan.