Specialised in
A larger kitchen, space to share a meal, or a better connection to the garden: a good extension starts with what your home is missing. We design rear, side-return and wraparound extensions around your daily life, your property and your budget.
We explore layouts, daylight, storage and the relationship with neighbouring homes. Once you choose a direction, we prepare the planning drawings and manage the agreed application stage, keeping you informed as it progresses.
For the next stage, we develop technical drawings and coordinate structural and specialist information so your builder has a clearer basis for pricing and construction. You receive a clear fee proposal and agreed programme for our work.
Send your London property address, photographs and a short brief. We will help you identify the right starting point and provide a project-specific quotation.
With over 25 years of experience, Horizon Architecture brings together architectural design, interiors and technical coordination. We work with you to understand the property, compare options and develop the information each stage needs. Clear fees, fast responses and an agreed programme keep you informed as your project moves forward.
of Experience
Projects completed
Plan your budget
Use our free construction cost calculator to check a rough estimate of how much your extension, loft conversion, refurbishment or new-build project could cost. It is an early budgeting guide rather than a contractor quotation.