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.
Horizon Architecture · Essex and London
Architectural design and planning support for homeowners, property developers and businesses in Chelmsford.
We work with briefs across Chelmsford, Writtle and South Woodham Ferrers. Horizon Architecture provides design, planning drawings and technical coordination for residential and commercial projects. We serve the area by arrangement; this page does not describe a separate local office.
Check the exact property address and planning authority before preparing your submission. Postcodes and postal town names do not always identify the local planning boundary.
Chelmsford explains that an owner may submit an application directly or appoint an architect or planning agent. The first task is to establish the appropriate consent route and submission information. A planning drawing package should then be followed by the technical information needed for the agreed construction scope.
Official Chelmsford City Council guidance and records · Source reviewed 18 October 2026.
For a Chelmsford extension, bring photographs of the rear elevation, existing floor plans and a short list of what the home needs to do better. We can test circulation, daylight, garden access and the relationship with neighbouring windows before developing the chosen option.
Explore our house extension design, loft conversions, new build architecture, interior design and Building Regulations drawing packages. For an existing refusal, see our planning refusal review service.
Your appointment defines the services included. Statutory application charges, surveys and specialist consultant fees are identified separately. Council approval is an independent decision and cannot be guaranteed.
Yes. We start with the available plans, your brief and the site constraints, then agree whether a measured survey, planning submission and technical package are required.
The planning and technical stages serve different purposes. Your quotation should identify the construction details, engineering and other consultant inputs needed for the intended work.
All Essex councils · All London boroughs · View our Essex residential project
Send your site address, photographs, existing plans if available, a short brief and your intended timetable. We will review the information and explain the next step and scope of a quotation.
Discuss your project