
Plan your home extension
Compare design options, agree the scope and move through survey, planning and technical design with fixed fees for each agreed stage.
Explore architectural offersExplore starting architectural fees and choose the offer that fits your project — from a home extension or full-house interior to a property or land-development decision.
Choose the package that suits your next decision.

Compare design options, agree the scope and move through survey, planning and technical design with fixed fees for each agreed stage.
Explore architectural offers
2D room design and product and material specifications, with CGI incentives for qualifying appointments.

Start with a written site screening. Then choose whether to commission a comparison of two concept directions.
Optional concept comparison: £855 ex VAT£1,026 including VAT.
Complete package: £1,250 ex VAT£1,500 including VAT.

Screen one parcel before commissioning an indicative capacity and strategy study. For early land decisions rather than a comparison of two property schemes.
Optional strategy stage: £600 ex VAT£720 including VAT.
Complete package: £995 ex VAT£1,194 including VAT.
These are guide prices based on typical projects. A written quotation will confirm the exact scope and fee. All figures below show VAT at the standard 20% rate where applicable.
These prices reflect the currently published indicative fees on the Horizon website; they are not cumulative package quotations. Statutory application fees, surveys and external consultants may cost extra. Confirm applicability of VAT and any scope changes in your formal quote.
Explore fixed-scope services and continuing-appointment benefits for homeowners and developers.
Whether you are improving your home or evaluating a development, architectural decisions deserve careful consideration. Our offers bring together defined services, clear stages and optional incentives.
An initial conversation helps us understand what you would like to achieve. Detailed feasibility advice follows a properly scoped appointment.
Before paid work starts, we set out the deliverables, fees, responsibilities and how the project will progress.
Choose the appropriate next stage with an understanding of what is known, what remains uncertain and what requires specialist input.
Start with an initial conversation. We will discuss the brief and explain which paid services, fees and next steps may be appropriate.