Duplex Specialist

Coastech Constructions is a Gold Coast based building firm that specialises in Custom Homes & Duplex's. The award winning team will manage your project from inception through to handover. Please enjoy the below gallery of works below from the award winning team and if you wish to contact us click the button below.


A tired beach-side shack made way for spacious and modern duplex in this knock down - rebuild. 

The design allows private outdoor living with the full glass living room wall opening seamlessly to the alfresco. 

Stick down timber floors in beech and feature open staircases assist the open space feel of these contemporary homes.


Battle Axe - Duplex

This Duplex pair is a full Design and Construct project. The detached dwellings have a 'battle axe' formation on the block. The pair will feature Coastech's medium & custom level of finishes with several upgraded items.

- 40mm stone tops with waterfall edges

- Tint mirror splashbacks

- Frameless glass balustrade to the hardwood staircase

- 600x600 porcelain tiles

- Ducted Air-conditioning

Hampton Inspired duplex

These detached Dwellings will soon be under construction Featuring a combination of Coastech's Medium and Custom level of finishes.


Boutique  townhomes southport

The Coastech team has managed this project from feasibility to DA to construction stage. We will turn soil in August 2017. The  589m2 site will accommodate four boutique townhomes featuring a combination of Coastech's Medium and Custom level of finishes, these townhomes will be a compliment to the suburb.

Corner block split

Consulting with the land owner the Coastech team managed to split this 830m2 block into 2 x 415m2 home sites through local council. This luxury product will feature 2 x 4 bed, 3 bath, 2 car garages with second retreat for the kids & there is also plenty of yard space including swimming pools.

One of these homes is available for sale, contact us for further information.


Working closely with the family this high spec custom luxury home included features such as:

Zinc cladding

Polished Block work

Motorised louvers

Rehabilitation pool

Spottedgum hardwood floors

hamptons retreat - award winner

Perched on a spacious acreage property this luxury home was designed to accommodate a growing family and integrates many hand picked finishes to achieve the true hamptons style. 

Features include: extensive use of timber, ships stern gables, oxford stone walls spotted gum flooring and imported tactiles. 

Master Builders Best individual home Brisbane 2013

A word from one of our clients;

I would have no hesitation in recommending Coastech Constructions based on the job they did for my new house… the high level of communication ensured our design goals were achieved and strong sense of going the extra mile achieved a fine level of finish and attention to detail all with a minimum of fuss and a pleasant smile.” 

- Jeff and Kay Davidson.


This sprawling luxury home ticks all the boxes with four ensuited bedrooms with walk in robes, media room, gym, high ceilings, ducted air conditioning, pool with massive entertaining area. This home was a full design and construct that stands out from the crowd and exudes quality.


This extensive renovation converted the original home to open the internal spaces and integrate a new over sized outdoor living room.

The original house was stripped to the frame and re-crafted with all modern finishes and an additional bedroom.


apartment remodel

This whole level apartment was stripped to the frame to create a brand new abode for its proud owners. Featuring a 2 way 9 meter stacker door, the largest ever manufactured by Stegbar, the home was fitted out with the best of everything with every detail covered. 

Logistically challenging and housed within an exclusive body corporate all materials were transported by the 1 lift in the building or by crane over the 5th storey balcony.

All stakeholders were satisfied with the outcome.