Coastline Architects

RIBA CHARTERED PRACTICE · WORTHING, WEST SUSSEX

Architecture shaped around how people actually live

We design extensions, whole-home renovations and new houses across the Sussex coast — and deliver architecture, project management and NEC4 contract administration for commercial, industrial and education clients. 

RIBA Chartered Practice · ARB Registered Architect · Worthing studio, open to visitors

Residential

Your house can probably do more than you think

Extensions, whole-home renovations and new houses across the Sussex coast and Downs. We take residential projects from first ideas through Planning and Building Regulations. 

Commercial

Support from feasibility through to completion

Architectural services, project management and NEC4 contract administration for commercial, industrial and education projects across Sussex and Hampshire.

THE FIRST STEP

Find out what your house
will allow — before you commit to a design

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. 

Will they let you?

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Will They Let You?

Curves and Light, Worthing

Status: Completed
An Art Deco house that finally opens to its garden

What Wouldn't Fit, Fit

A two-bedroom bungalow, remade as a family house, Lancing 

Completed 2026 · Planning permission + Building Regulations

Why Coastline

Architect-led

You work directly with a RIBA Chartered Architect, not a salesperson and a drawing office

Planning first

We test the planning position before you commit to a design, not after

Designed in 3D

You see and understand the proposal before the decisions get expensive

Honest about scope

We tell you what is included, what is not, and what it will cost, in writing

Why Coastline

✓

Architect-led

You work directly with a RIBA Chartered Architect, not a salesperson and a drawing office.

✓

Planning first

We test the planning position before you commit to a design, not after.

✓

Designed in 3D

You see and understand the proposal before the decisions get expensive.

✓

Honest about scope

We tell you what is included, what is not, and what it will cost, in writing.

Most of our clients started with a room
they had stopped using

Testimonials

Elizabeth understood our brief and what we needed, while bearing in mind the building’s Art Deco heritage.
Cheryl, Curves and Light
Rated 5 out of 5
The planning process felt much less stressful thanks to their guidance and attention to detail.
Clare, A Bungalow Reimagined
Rated 5 out of 5

Come and see us

Our studio is on New Broadway in Worthing, with the drawings in the window and the kettle on.
You are welcome to call in, or book a Feasibility Study and we will come to you.

Coastline Architects