RIBA CHARTERED PRACTICE · WORTHING, WEST SUSSEX

How We Work

Stage
1. First conversation
A phone call. We ask about the property, what you want to change, your budget and your timescale, and tell you honestly whether we are the right practice for it.
2. Feasibility & Options Study
A site visit, a planning appraisal specific to your address and one recommended design direction, with an indicative build cost. £625 + VAT (£750 total payable), credited in full against your design fee if you appoint us within six months.
3. Design
We develop the agreed direction and present it in 3D so you can see and understand it before anything is fixed.
4. Planning
We prepare and submit the application and manage it, including any negotiation with the case officer.
5. Building Regulations
Technical drawings, structural engineer coordination and the Building Control submission, ready for a builder to price and build from.

If you want help choosing a builder or someone to check the work as it goes up, we offer tender support and design visits as separate services. We do not act as project manager or contract administrator on residential projects.

Is there a room your house needs
and doesn’t have?

Most people arrive with a question that sounds simple and is not: can we do this, will we get permission, and what will it cost to build?
A Feasibility & Options Study answers all three, in writing, in about three weeks.

£625 + VAT (£750 total payable)
Credited in full against your design fee if you appoint us within six months. 

Coastline Architects

A RIBA Chartered Practice in Worthing, designing homes across the Sussex coast and Downs, and commercial, industrial and education buildings across Sussex and Hampshire.

©2026. Coastline Architects. All Rights Reserved.

43 New Broadway, Tarring Road, Worthing, BN11 4HS

01903 357047 · info@coastlinearchitects.com

Monday to Friday, 9am to 5pm

24 residential planning approvals to date.