At Costello + Graham Design we tailor our architectural services to suit each clients individual needs and budget.  We deliver your project in the following stages:

Concept Design

Starting with your brief, Costello + Graham Design produce a series of concept plans and diagrams to explore the design potential available to you, specifically suited to your site.

Concept 2

Design Development

The Concept Design proposals are developed and tested to create a building solution for your site.  Documents are prepared and submitted to the relevant authorities for planning approval.


Detailed Design

Detailed documentation of your project ensures that no aspect of the building shell is unresolved.  Documents are developed and coordinated with other relevant consultants for construction approval.



We believe the design of the interior spaces is equally as important as the outside.  We provide detailed planning of specialised areas including kitchens, bathrooms & joinery and can assist you to select finishes, fittings and colours.

Interiors_mam_low res

Tender & Construction Services

Costello + Graham Design provide expertise to assist you through the builder selection & tender process.  We can also provide site attendance services to review the works in progress. Our aim is to ensure that the built works reflect the design intent and the documentation.