Remodelling, Upgrades & Fit-Out

Transforming existing buildings into efficient, purposeful and inspiring spaces.

Buildings do not stand still – standards evolve, systems age and expectations rise. Whether through changing regulations, energy targets or the natural wear of time, many properties now need to be upgraded rather than simply refreshed.

OSG helps clients meet these challenges head on, revitalising existing assets through well planned remodelling, strategic upgrades and thoughtful fit out design. Based in Kent and working across London and the South East, we deliver full planning and design services that turn outdated or inefficient buildings into spaces ready for the future.

What our remodelling, upgrade and fit out services include

We work across commercial, residential, education and community sectors, tailoring our service to meet the specific needs of each building and client.

■ Feasibility and planning advice, identifying opportunities and constraints from the outset.
■ Concept and interior design, combining design quality with functionality.
■ Space planning and reconfiguration, improving layouts for efficiency and usability.
■ Building upgrades and refurbishments, addressing issues such as dilapidation, energy performance and compliance with new standards.
■ Technical detailing and construction co-ordination, ensuring smooth delivery and minimal disruption.

How clients benefit

Appointing OSG for building remodelling or fit out provides:
■ Clarity and control – one partner overseeing design, compliance and delivery.
■ Reduced downtime – projects planned around operational continuity.
■ Regulatory compliance – upgrades designed to meet current standards and Building Regulations.
■ Improved efficiency – better energy performance and reduced operational costs.
■ Design excellence – intelligent, buildable solutions that enhance value and usability.

Why choose OSG?

We understand the complexities of transforming existing buildings – from ageing structures and outdated systems to tight urban sites and live environments. Our mix of technical and design expertise allows us to navigate these challenges with care and precision.

Clients trust us for our transparent communication, reliable delivery and ability to bring clarity to even the most constrained projects.

Contact us to discuss your project

If your building needs upgrading, reconfiguration or a complete fit out, our team can help you plan and deliver change that makes long term sense.