28 August 2026

Construction

From Mall to Multi-Specialty Hospital: A Brownfield Redevelopment & Structural Retrofit Case Study

Q: Can a shopping mall be converted into a hospital?

Yes, but only after verifying the existing structure. Malls and hospitals have very different load, layout and services requirements, so the building must be independently audited, columns or slabs strengthened where needed, and the floor plates reconfigured for clinical, infection-control and equipment needs.

Case Study · Structural Retrofit

How a decade-old shopping mall in central Bengaluru was strengthened, reconfigured and converted into a fully operational 190-bed multi-specialty hospital — without demolition, and without slipping the schedule.

ANPCPMC • Project & Construction Management • ~9 min read

1.3 L

sq.ft. built-up

190

beds

columns strengthened

days schedule lost

The hospital is a 190-bed, 1,30,000 sq.ft. healthcare facility spread across Basement, Ground, Mezzanine, First, Second and Third floors. The project was a brownfield undertaking – the building, originally constructed as a shopping mall approximately ten years earlier, was repurposed and converted into a fully functional hospital.

The Challenge

Converting a decade-old mall structure into a fully functional hospital – while an active project schedule was running – presented a unique and demanding set of challenges:

Unknown structural modifications from prior occupancy: The building had already been altered once by its previous occupant, leaving uncertainty over its residual load-carrying capacity and structural history.
Integration of healthcare-specific loads: Hospitals impose significantly heavier and more specialised loads than a retail structure was originally designed for, including the weight and installation requirements of heavy diagnostic equipment such as MRI machines, which needed to be manoeuvred into position and supported within an existing floor layout never designed for such equipment.
Architectural reconfiguration requirements: Large retail floor plates, atriums and vertical circulation elements such as escalators had to be substantially reconfigured to meet hospital planning, infection-control and functional requirements.
Risk of structural intervention in an occupied urban environment: Column strengthening and slab work had to be carried out on a live site within a dense urban location, demanding careful sequencing to safeguard structural stability, safety and access throughout.
Need to maintain project schedule despite major retrofitting: Strengthening 85 columns and reconstructing four escalator openings is intensive, time-consuming work; achieving this without extending the overall project timeline required tight coordination and phased execution.

Before any hospital-specific civil work could begin, it was essential to establish whether the existing beams, slabs and columns could safely support the proposed loads, and if not, how the structure could be strengthened without compromising the building's integrity or the project timeline.

Our Approach

Structural Due Diligence & Risk Assessment

Recognising the risks associated with repurposing a decade-old mall into a hospital and the significant increase in structural loading arising from healthcare infrastructure requirements, we initiated a detailed structural due diligence exercise. Based on our assessment of the building history and anticipated hospital loads, we recommended the engagement of an independent third-party structural consultant to carry out a comprehensive structural audit of the existing building.

Audit Findings

Based on the structural audit that we initiated and coordinated, it was established that the existing beams and slabs were capable of carrying the proposed hospital loads, whereas the columns required strengthening prior to redevelopment. We subsequently developed the execution strategy and facilitated the engagement of a specialised retrofit contractor to implement the strengthening recommendations.

Column Strengthening

Monitored and coordinated the strengthening of approximately 85 columns through a well-defined retrofit methodology consisting of:

Removal of existing plaster from the column surface.
Surface roughening followed by thorough cleaning.
Drilling of holes for insertion of shear connectors.
Installation of shear connectors and fixing of longitudinal reinforcement.
Erection of shuttering up to 150 mm below ceiling level.
Pouring of M25-grade microconcrete from the top.
Core-cutting of the slab above, shuttering of the remaining 150 mm section and completion of concreting from the slab top level.

Through systematic planning and phased execution, the strengthening works were completed safely while maintaining the overall project schedule.

Escalator Removal & Slab Reinstatement

To facilitate the revised hospital planning requirements, we developed and coordinated a phased strategy for dismantling the existing escalators and reinstating the resulting floor openings with new structural slabs.

The original mall structure contained four escalators, two between the Ground and First Floors and two between the First and Second Floors. We planned and executed the following methodology:

Dismantling of existing escalators and clearing of floor openings.
Provision of new structural beams spanning between existing beams at 2.5 metre intervals.
Installation of shuttering over the newly provided beams.
Placement of reinforcement steel.
Casting of M30-grade reinforced concrete slabs.
Finishing and integration of the newly cast slabs with the surrounding floor structure.

The same methodology was implemented at both First and Second Floor levels, successfully converting the escalator voids into usable hospital floor space

MRI Installation Planning & Structural Interventions

Accommodating a 7-tonne, 3-Tesla MRI machine within a building originally designed for retail occupancy required detailed planning, coordination and structural intervention.

After identifying the MRI location at Ground Floor level, we coordinated detailed structural assessments and facilitated slab strengthening works. Based on the structural consultant's recommendations, structural steel supports comprising ISMB 300 sections were installed at 2 metre centre-to-centre spacing between RCC beams below the slab. Moving the MRI machine from the Ground Floor entrance to its final position, approximately 30 metres away, involved several structural and logistical challenges.

An RCC beam with inadequate clearance obstructed the movement path. We evaluated alternative solutions in consultation with the structural consultant and developed a controlled execution methodology that involved:

Removal of only the concrete portion of the beam while initially maintaining reinforcement continuity.
Temporary cutting and upward bending of reinforcement bars to create the required headroom.
Reinstatement of reinforcement with the required lap lengths after shifting the machine.
Shuttering and M30-grade concreting to restore the beam to its original structural capacity.

To mitigate temporary loading effects during transportation of the MRI machine, we coordinated the provision of back-propping at Basement level at 1 metre centre-to-centre spacing throughout the machine movement route. Recognising the constraints arising from the hospital's location on busy JC Road, we proactively developed a detailed logistics plan covering transportation, unloading and installation activities. The entire operation, including trailer arrival, unloading and final positioning of the MRI machine, was planned and successfully executed between 12:00 AM and 4:00 AM, thereby avoiding disruption to daytime traffic and site operations.

Civil Works Execution

Upon completion of the structural strengthening activities, we led the execution, monitoring and coordination of the balance civil works in accordance with the approved architectural drawings, ensuring successful completion of the redevelopment works within the planned schedule.

Project Outcomes

Successful transformation of a 10-year-old retail facility into a 190-bed tertiary care hospital.
Avoided complete demolition and reconstruction, significantly reducing capital expenditure.
Enabled accelerated project delivery through brownfield redevelopment.
Achieved structural compliance through targeted strengthening rather than full replacement.
Delivered hospital-ready infrastructure while retaining major portions of the existing structure.

Our Value Addition

We recommended the need for independent structural verification and initiated a comprehensive structural audit process.
Developed and implemented a phased strengthening strategy for 85 critical columns while maintaining project momentum.
We planned and coordinated the complex MRI installation process, including slab strengthening, temporary structural modifications, back-propping arrangements and logistics management.

Lessons Learned

Independent structural audits are essential before repurposing any brownfield structure for a significantly different end use, especially one involving heavy or specialised loads such as medical equipment.
Engaging specialised consultants for both structural assessment and retrofit execution ensured the strengthening solution was technically sound and executed to specification.
Architectural changes arising from adaptive reuse, such as removing escalators no longer required in a hospital layout, need to be closely coordinated with structural works to avoid rework.
Early collaboration between the client, architects, structural consultants and the strengthening contractor was key to converting a decade-old commercial structure into a code-compliant healthcare facility without compromising the project schedule

Frequently asked questions

What is brownfield redevelopment in construction?

Brownfield redevelopment is the reuse or redevelopment of an existing, previously built structure or site rather than building new on vacant land. In this project it meant converting an existing shopping mall into a hospital — retaining the frame where possible and strengthening it, instead of demolishing and rebuilding from scratch.

Can a shopping mall be converted into a hospital?

Yes — but only after verifying the existing structure. Malls and hospitals have very different load, layout and services requirements, so the building must be independently audited, columns or slabs strengthened where needed, and the floor plates reconfigured for clinical, infection-control and equipment needs. Here, the beams and slabs were adequate while the columns needed strengthening before the conversion could proceed.

What is micro-concrete column jacketing?

It is a strengthening technique in which an existing column is wrapped with added reinforcement and a new layer of high-strength micro-concrete. The surface is stripped and roughened, shear connectors and longitudinal steel are fixed, shuttering is erected, and M25-grade micro-concrete is poured — increasing the column's load-carrying capacity without replacing it.

Is retrofitting cheaper than demolition and reconstruction?

In most adaptive-reuse cases, yes. Retaining a sound structure and strengthening only what is deficient avoids the cost and time of full demolition and rebuild. This project reduced capital expenditure and accelerated delivery precisely by strengthening rather than replacing — a value-engineering outcome.