We provide a wide range of Services

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Commercial Construction

Our high-quality London commercial refurbishment services are designed for anyone who wishes to improve their commercial property and express their company’s ideals trough interior design made especially for them.

Working closely with our clients enables us to understand their creative vision, resulting in bespoke commercial building interiors which help our clients impress their co-workers and business partners. As experienced building contractors, we ensure that your project is completed to the highest standards by our expert North London builders, who have years of experience in commercial fitting.

commercial construction
Residential construction

Residential Construction

Residential construction is the process of building and maintaining houses and apartments. It involves the expansion, renovation, or construction of a new home or spaces intended to be occupied for residential purposes. The process consists of several steps that both investors and homeowners use to ensure things go as smoothly as possible.

House Extension

If you live in London or Hertfordshire, adding an extension to your house, whether it’s a side return, wrap-around or a rear extension, gives you more space and increases the value of your property. At Marion Construction, we offer two types of building packages. Design and Build house extensions London – when our architect works closely with you to prepare the architectural and structural drawings and then starts the building process by submitting the plans to your Local Authority. Once the application is approved, our skilled construction team will complete your home extension to the highest standards. If you already have hired architects to do the design, we can extend your home following their drawings and specifications.

Upon completing the construction of the extension, we provide our clients with the building completion certificate, and a ten-year structural warranty comes as standard. As one of the best building contractors in North London, we have built many home extensions in London and Hertfordshire, which show the expert services provided to our clients by our professional extension builders. Book a free no-obligation consultation today and benefit from our experience by letting our team of experts help you find some of the best solutions to the space problems in your North London property.

House extension


We are a professional house refurbishment company that has more than 15 years of experience in renovating flats and houses in North London. We provide complete house renovation and home improvement services, including full property remodelling and fitting new kitchens and bathrooms.

Design & Build

Design & Build house extension service is an innovative concept for home-owners in London and Hertfordshire who want to add extra space to their existing home. It has many benefits, including easier communication with architects and building specialists, as well as saving you time.

Our award-winning architects and qualified structural engineers have years of experience designing all types of single and double-storey home extensions for both newer and period properties. Our Design services include planning, architectural and structural drawings and obtaining planning permission.

If you then decide to go ahead with our London building company to complete the build, our builders extensions specialist will take care of the construction from start to finish. Our dedicated project manager will keep you updated throughout the whole building process and will answer any questions you might have. Our Design and Build team works hard to turn your vision into reality with minimal disruption to your daily life.

Design & Build
Interior design

Interior Design

Your property might be in the most desirable area, it might have the neatest front garden or the cleanest facade, but what truly makes your house your home is its decor. We have teamed up with some of the most talented and creative interior designers North London has to offer to provide our clients with residential interior design services. Our interior designer works closely with you to create beautiful decor that will reflect your personality and complement the style of your home and the room layout.

From selecting the perfect colours and textures for your walls and floors, finding complementary furniture, and helping you choose the ideal wall art and other decorative items, our professional designers have years of experience and boast impressive work portfolios from both commercial and residential property design projects. They work closely with the suppliers as well as our renovation experts including painters, decorators, tilers and joiners to save you time and to help you achieve your property renovations goal.

If you are planning to embark on a commercial renovation project, we also offer office and restaurant interior design service created to help our clients to convey their business ideals trough interiors that have been designed especially for them.We also provide space-saving solutions by designing and building unique made-to-measure furniture matching your working environment.

To benefit from our London interior designers’ extensive experience, book a free no-obligation consultation today.


Working with a partner is a world away from working with a service provider. A partner is as good as part of your organisation. They know your business, your aims and your values.

In terms of recruitment and training, a partnership brings cost effective solutions tailored to specific needs. It brings foresight and an in-depth knowledge of the skills and personalities that make your operation run efficiently.

Especially when your partners happen to have extensive industry specific experience in all aspects of the construction sector.

Data Management

Data Management

Bell Data is a market-leading data management and analytics consultancy. We will support you at every stage of your data-driven journey, ensuring you gain true value from your data.

From developing the right strategy through to data management, data engineering, business intelligence and analytics, we provide a comprehensive range of innovative and cost-effective data services.

We have a proven track record and an in-depth understanding of the challenges facing organisations that are looking to optimise their data.


Our agency mantra is ‘no PR for the sake of it’ because we believe there’s no point in getting coverage if it doesn’t make an impact for your brand or business.

Every single one of our client projects has a crystal clear objective we need to achieve – like selling tickets, driving web traffic, changing consumer perceptions or making something, or someone, famous.

Property Development

Property Development

We will fully manage your property from A to Z for an annual fixed fee. All administration is in-house and we keep you and your tenants in the loop, but get on with what needs to be done.

We do this from a landlord’s perspective, reflecting our history, but always seeking to deliver a great service to your tenants.

Would you like to start a project with us?

We strive for excellence in quality, and we continuously innovate, utilizing advanced technologies.

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