The free public showcase featuring four architects and a pop-up exhibition of historic woolsheds begins at 5pm at the Glasshouse.

There will be drinks and nibbles available on arrival.

The woolshed exhibition is a collection of images to recognise, celebrate and record woolsheds across NSW.

Architects Karen Burke, Craig Teasdell, Simone Lake and Nigel Swift will talk about their projects and ideas for the community.

The free public session, called Architecture on Show, will provide a snapshot of what is shaping our community and give people a chance to meet architects who live and work here.

Architecture on Show follows a professional development seminar day titled Fit for Purpose.

The seminar brings together professionals from the disciplines of art and architecture.

It will explore how their work uses art, science and the environment to produce results particularly well suited for their designated role or purpose.

The seminar creative directors are architects Tricia Helyar from Bellingen and Chris Jenkins from Port Macquarie.

Architecture is far more than just drawing up a plan or creating a digital model.

Mr Jenkins said the fabric of a town was in its architecture.

"It is important it is designed properly and not just taken for granted," he said.

The events, hosted by the NSW Country Division of the Australian Institute of Architects, are part of a commitment to recognise and promote architecture in a regional context.

Architect Karen Burke said good design was not necessarily expensive.

"The cost of a home these days is probably one of the greatest investments a family will make and it's worth getting someone involved that's going to do it right," she said.

Mr Teasdell said the boom in home renovation shows on television had increased interest in the field.

But architects stress the design of a building needs to be unique to the site, holistic and not a room by room approach.

Mr Jenkins said of all the programs, Grand Designs was probably the more realistic view of the process of delivering a house, from the trials and tribulations of dealing with planning authorities, to neighbours, budget and getting a builder sympathetic to the end product.