Premium House , Worthing
Office to Residential Conversion
Units: 16 (1-Bed Flats)
Client: Private Developer
Description: This project involved the change of use from an office building to 16 high-quality one-bedroom flats, delivering much-needed residential accommodation while maximizing the building’s potential.
Appointed by a private developer, OSM are carrying out a full conversion and refurbishment, ensuring the new apartments met modern living standards while optimizing space and functionality.
The scope of work include:
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Full internal reconfiguration, transforming office space into well-designed residential units
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High-spec finishes, creating desirable, modern living spaces
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Upgraded infrastructure and services, ensuring long-term efficiency
A well-executed project that breathes new life into an existing structure, offering stylish, high-quality homes in a prime location.
Gordon Road, Brighton
St Mungo's, Emergency accommodation
Units: 8
Client: St Mungo's Homeless Charity
Description: This is the second St Mungo’s development undertaken by OSM, reinforcing our ongoing partnership with this incredible charity.
St Mungo’s appointed OSM to carry out a full conversion, extension, and loft conversion of a three-bedroom Brighton terrace, transforming it into an 8-bedroom HMO designed to provide safe and comfortable accommodation for their clients.
The scope of work included:
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Full internal reconfiguration, optimizing space for HMO living
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Extension & loft conversion, maximizing capacity and functionality
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Upgraded facilities, ensuring a high standard of accommodation
Delivered with efficiency and attention to detail, this project provides much-needed housing for those in need while maintaining the high-quality standards St Mungo’s upholds.
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Montague Street, Worthing
Mixed Use Development
Units: 11 Flats + Commercial Space
Client: Private Developer
Description: This project involved the renovation of an existing building, alongside a new second-floor timber frame extension, transforming the space into a vibrant mixed-use development.
The completed scheme delivers:
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Ground floor commercial space
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11 high-quality flats, a mix of studio, 1-bed, and 2-bed apartments
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Comprehensive refurbishment, ensuring modern, energy-efficient living spaces
Biddenden Close, Eastbourne Affordable Housing
Units: 5 x Two & Three bedroom houses
Client: Eastbourne Community Land Trust
Description: OSM were appointed by Eastbourne Community Land Trust (ECLT) to deliver a five-home scheme on a former garage site, taking the project from the planning stage through to detailed design.
The brief was clear—eco-friendly, affordable homes. OSM, working closely with the design team and client, developed a SIPS (Structural Insulated Panel System) build that prioritises sustainability and energy efficiency.
The key design features include:
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SIPS construction, ensuring high thermal performance and airtightness
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Air Source Heat Pumps (ASHP) for sustainable heating and hot water
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Triple glazing to enhance energy efficiency and reduce heat loss
With the detailed design now complete and signed off, ECLT intends to instruct OSM for the construction phase as soon as funding permits. A forward-thinking project designed to provide affordable, low-carbon homes for the local community.
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Aldwick – HMO Conversion & Extension
Units: 37
Client: Private Developer
The Aldwick project involved the conversion of an existing building alongside a new single-storey extension, transforming the space into a high-quality 37-bedroom HMO. Each unit was designed with its own private bathroom, ensuring comfort and privacy for residents.
The development was undertaken for rental to the local authority, providing much-needed accommodation while meeting modern living standards.
The scope of work included:
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Full internal reconfiguration, optimizing the layout for efficiency
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37 en-suite bedrooms, delivering private, self-contained spaces
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Single-storey extension, maximizing available capacity
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Upgraded communal facilities, ensuring long-term comfort for residents
A well-executed project that balances functionality, quality, and efficiency, offering a sustainable housing solution for the local community.
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Littlehampton High Street
Commercial / HMO
Units: 2 Commercial + 11 HMO Dwellings
Client: Private Developer
Description: This mixed-use development in Littlehampton required a full new build extension to an existing bank building, delivering both commercial and residential spaces. Working closely with the private developer, OSM Construction took on the challenge of demolitions, groundworks, and a full structural build spanning ground, first, and second floors.
From demolition to completion, our team ensured the project was delivered to the highest standard, creating a modern, functional space that supports both commercial and residential needs in the heart of Littlehampton.
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Cromwell Road, Kensington, London
St Mungo's, Rough sleeper/emergency accommodation
Units: 52
Client: St Mungo’s Homeless Charity
Description: We’re incredibly proud of this project, not only because of the vital work St Mungo’s does in supporting people experiencing homelessness but also due to the challenge it presented.
With an 18,000 sq ft hostel in urgent need of full renovation, St Mungo’s set an ambitious deadline of just four months. The project was critical—another hostel was being de-camped, meaning there was absolutely no margin for delay.
OSM took on the contract, and worked tirelessly, completing a full internal decoration, new flooring throughout, kitchen and bathroom refurbishments and replacements, an much more.
The result was a fully upgraded, modern, and welcoming space that St Mungo’s can proudly offer to its clients.