The project costs around $2.5 million, and is funded by donation and support from the Waikato and Auckland Muslim communities.
Principal contractor is Mitchell Construction and had enjoyed huge support from Mitchell Construction owner Colin Mitchell, Hassan said.
The design includes a ground floor with meeting room, kitchen and facilities. Men and women pray separately and the first floor provides a 400sq m prayer space.
When completed next year it will be the only mosque in New Zealand with a lift.
"Hamilton is my city and I wanted this building to become a land mark. In Hamilton there is no other building exclusively for the Muslim community. We have about 150 people in our congregation and a mix of people from all parts of the world."
A 'big' opening is planned for next year.
Finishing touches, including decorative stone work, will be completed over the next few years, Hassan said.