COSI DESIGN is an architectural design studio founded by Sigrid and Alessandro after years of experience in London practices in order to deepen their creative collaboration. 


Our design concept is based on the stance that architecture is for people. We have an interdisciplinary and multicultural approach to the design process and work simultaneously at various scales to investigate conceptual and practical ideas. Big or small we initiate each project with enthusiasm. We have always shared a belief in the strong social value of architecture. 


Our established network of consultants ensures that for each project we seek the involvement of appropriate experts to guarantee the high professional standards.





COSI DESIGN can add value through the design of space, lighting and the combination of materials to further improve the quality of private or commercial lives interaction. This does not mean a large project or budget but sometimes the smallest ideas have the largest impact.

We also offer our clients to manage the construction process and relationships between contractors that in turn makes a project an enjoyable and stress free undertaking.

  Survey & Existing Drawings

We can undertake surveys of existing property (plans, sections, elevations) to suit any project requirements. These drawings can be used for title deeds, planning applications or be part of full start to finish construction project.

Where required we can engage specialist firms where more detailed information is needed, whether with topographical, drainage or historic surveys.

  Feasibility & Brief

We help clients formulate a project brief and programme as determining through feasibility option studies what the most practical and cost effective scope of works to undertake are.

We can also advise where necessary the other consultants that are needed for any project.


  Concept Design

Once a brief has been put together with the client, we then undertake a concept study that meet the project requirements. This phase would include sketches, drawings, 3D views to help give a clear idea of a project.


  Planning Applications

With an experience with many London Councils we are able to take on any level of planning application be it for a small extension or comprehensive works to a Listed property. We provide a full service including production and submission of drawings, reports and management of any on-going condition sign off.


  Detailed Design

We offer a full technical design service producing tender and construction drawings for our clients. These drawings can also be used where necessary for any Party Wall or Freehold Agreements.

At this stage we can also offer a bespoke furniture & kitchen design service to ensure that every detail of your project is thought of from start to finish.


  Tendering to Contractors

We can put a project out to tender we have some of trusted contractors we invite and can work with client sourced contractors as well and we can compile a detailed and legally responsible Building Contract to give clients peace of mind moving forward into the Construction phase.


  Contract Administration

We can take on a full Contract Admin role during construction managing the the implementation of the Building Contract through regular site inspections and meetings with contractors and consultants. This take the stress of a construction project away from the client who does not need to deal with any contract matters with their builder and can instead focus on the enjoyable aspects of design and fitting out.


  Supplier & Material Sourcing

We have built up a wealth of contacts with various suppliers and sub-contractors and we can help clients source the most appropriate materials, products and fittings for their project. This could be from tile luxury floor, a green roof or living wall or a wonderful and comfortable sofa.


tell us about your project

mob. 0795 135 5576 / 07902723932



Central House

1 Ballards Lane, Finchley

London N3 1LQ

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