Desa Melawati, Sectors B and C, Phase 5
High-specification condominium development on a hillslope within Desa Melawati township.
Ohr / DIRECTOR'S PROFILE
Founder and Director
PEng CEng MIEM MICE MRes BSc (Hons)
Yasotha Chetty founded Ohr in December 2014. Her experience spans Malaysia, the United Kingdom, Europe and the Middle East, and encompasses new buildings, existing structures and complex architectural projects.

01 / PROFILE
Yasotha spent nine years in England, working with Buro Happold and Ramboll (formerly Whitbybird). She returned to Malaysia in 2011 under the Government's Returning Expert Programme and joined AECOM, where she subsequently headed the civil and structural engineering discipline within its building engineering practice.
Her experience covers reinforced concrete, steel, timber and masonry structures, from interventions in existing buildings to architecturally complex developments. She advocates creative engineering solutions, integrated design and a collaborative working environment, and has contributed to professional and academic bodies.
LinkedIn02 / CAREER
Director — Ohr Dec 2014–present
Adjunct Lecturer — School of Architecture, Taylor's University Lakeside Campus, Malaysia Oct 2018–Aug 2020
Technical Director — AECOM, Malaysia Jan 2013–Sep 2014
Associate Director — AECOM, Malaysia Jun 2011–Dec 2013
Senior Engineer — Ramboll, UK Sep 2007–Jun 2011
Engineer — Buro Happold, UK Sep 2002–Sep 2007
03 / CREDENTIALS
Professional Engineer — Board of Engineers Malaysia
Chartered Engineer — Engineering Council UK
Member — Institution of Engineers Malaysia
Member — Institution of Civil Engineers, UK
Master of Research (MRes), Computational Modelling and Numerical Analysis in Engineering Mechanics — University of Wales, UK
Bachelor of Science (Hons), Civil Engineering — Universiti Teknologi Malaysia
04 / CONTRIBUTIONS
Committee Member — Institution of Civil Engineers, Malaysian Chapter 2019–2021
Committee Member — Professional Practice Subcommittee, Institution of Engineers Malaysia | Apr 2019- Apr 2025
Elected Council Member — Institution of Engineers Malaysia Apr 2018–Apr 2021
Committee Member — Civil and Structural Engineering Technical Division Apr 2013–Apr 2023
Industry Advisory Panel — SEGi University | 2011 - 2024
Task Force — Amendments to the Uniform Building By-Laws to enable structural timber, Malaysian Timber Industry Board 2018–2019
Visiting Industrial Tutor — University of Bath Jan 2004–Jan 2011
Visiting Industrial Tutor — University of Wales, Cardiff campus Jan 2007–Jan 2011
Yasotha also speaks at industry events and delivers guest lectures.
05 / SELECTED PRIOR EXPERIENCE
The following projects are from Yasotha's professional experience, including work undertaken before the establishment of Ohr.

















High-specification condominium development on a hillslope within Desa Melawati township.
Hillside residential development comprising one 40-storey and two 30-storey towers on an eight-storey podium. The excavation extended approximately 25 m into the hillside at its deepest point, with slopes described as 80% Grade III and 10% Grade IV.
The new home for the Institute of Contemporary Interdisciplinary Arts at the University of Bath was the subject of a limited design competition. Architecturally expressed concrete and cross laminated timber panels create a contemporary structure with flexible spaces.
An 11-storey reinforced concrete building with a single basement beside the River Thames, near the Tower of London and Tower Bridge. The structural strategy sought to minimise archaeological and environmental disruption while accounting for potential vessel impact.
An approximately 200 m-tall development with three basement levels. The upper 60% of the building comprises six separately expressed palace structures, stabilised by a compact eccentric core.
High-specification development of two 189 m towers connected by a rear core, with a low-rise retail structure and four basement levels. The tower geometry accommodates a perimeter trussed exoskeleton.
Restoration of a Grade I-listed orangery at Chiddingstone Castle, incorporating a new glazed timber gridshell roof formed from locally sourced chestnut. Wood Awards 2007 — Best Use of British Timber.
Visitor centre for the Royal Botanic Garden Edinburgh. A two-storey timber structure with a deep, tapered glulam roof grillage and solid cross-laminated timber floor panels.
Four-storey contemporary art museum conceived to support urban regeneration. The structural engineering is integrated with the building services and complements the sculptural architectural form.
A 14 m-high glass wine rack installed within the existing structure, incorporating an aerial service arrangement for wine waitresses. The tower formed a centrepiece of the 500-room Radisson SAS hotel at Stansted Airport.
Two-tower residential proposal to the east of Canary Wharf, comprising 397 homes. The 34- and 28-storey towers stand on a 7 m-high podium and incorporate sky balconies.
Shortlisted design competition proposal for a sustainable, self-funding, 2 km-long sound barrier intended to achieve a 7 dB reduction. The concept, Dynamic Sculpture, comprised an undulating retractable barrier within a sustainable technology park.
Proposed new university campus at Technology Park Malaysia, planned in phases with a basement extending across the site.
New school campus designed to accommodate 2,600 students on a 26-acre site, with ambitious environmental performance objectives.
Development of a new Malaysian campus for the University of Reading, comprising a concrete structure with a large roof spanning the public space.
Transportable performance venue designed for erection within two weeks and packing into shipping containers. The structural concept combined a lightweight, rigid steel central drum with self-supporting pneumatic extensions. World Architecture Festival 2009 — Future Project Award.
Structural design of a 90 m × 25 m doubly curved timber gridshell roof using locally grown larch and birch plywood sheathing. The roof is supported by a curved steel edge beam on quadruped legs. Awards include the 2007 IStructE Supreme Award for Structural Engineering Excellence, 2006 Wood Awards Gold Award and 2007 RIBA National Award; shortlisted for the 2007 RIBA Stirling Prize.
Private Finance Initiative redevelopment of Queen Alexandra Hospital, intended to improve healthcare facilities and patient care for the local community.
Structural appraisal of an early-1960s crematorium to accommodate a revised layout and assess compliance with the Disability Discrimination Act requirements in force at the time.
Refurbishment of a group of existing buildings dating from 1890, including alterations to address the Disability Discrimination Act requirements in force at the time.
Structural appraisal of a 1950s university building to assess the feasibility of introducing a café on an existing floor, including detailed review of load capacity and imposed loads.
Refurbishment and extension of a 1970s lecture theatre using a steel frame with composite metal-deck flooring.
Structural appraisal of an existing five-storey university building dating from 1958 to assess capacity, façade retention and the potential to extend its service life by 30 years.
Initial condition assessment of farm buildings dating from before the 1820s to the mid-20th century, to inform their potential conversion to residential holiday accommodation.
Proposed redevelopment of the School of Oriental and African Studies’ Bloomsbury campus, including an extension to a 1970s building and an additional storey above a row of Georgian townhouses.
Redevelopment to provide the Royal Shakespeare Company with a new 1,000-seat auditorium and an extended theatre campus at Chapel Lane.
Investigation of defects in a warehouse ground-floor slab, including structural assessment, testing and remediation.
Desk-based structural assessment of a floor of Menara Maxis to inform a proposed change of use and internal layout.