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Business Details
Your Trusted Custom Home Builder in Sydney
Established over two decades ago, TG Building has built a reputation as a trusted custom home builder serving Sydney's Hills District and surrounding areas. Our personalized approach ensures clients receive tailored solutions from concept to completion, specializing in home extensions, second storey additions, and bespoke new builds. With a commitment to quality craftsmanship and local expertise, we guide homeowners through every stage of the building process while maintaining transparency and attention to detail.

As a family-owned business, we prioritize direct communication with the owner throughout projects, ensuring client visions are realized within budget and timeframe constraints. Our team's deep understanding of local regulations and partnerships with skilled tradespeople enables seamless project execution, from design approvals to final finishes.
Services
Home Extensions Second Storey Additions Custom Home Building Concept-to-Completion Service Personalized Consultations
Highlights and features
  • We offer 20+ years of local home building expertise in Sydney's Hills District
  • Our owner-led approach ensures direct communication throughout your project
  • We specialize in concept-to-completion home building services
  • We guarantee quality craftsmanship with premium materials and construction techniques
  • Our personalized service tailors solutions to individual client requirements
What people say
Excellent work Great ideas Finished ahead of schedule On budget Highly recommend
Services
Home Extensions
Specializing in Sydney home extensions, we transform properties with functional, value-adding additions. Our process begins with personalized consultations to understand spatial needs, followed by council approval assistance and quality construction using premium materials. Clients benefit from our local expertise in navigating Sydney's building regulations while maximizing property potential.
Second Storey Additions
Our second storey additions optimize vertical space while preserving backyard areas. We manage complete projects from structural planning to finishing touches, ensuring seamless integration with existing homes. This service particularly benefits growing families seeking additional living space without relocating from desirable Sydney locations.
Custom Home Building
Creating bespoke Sydney homes tailored to individual preferences, our custom building service covers modern and traditional designs. We work closely with clients to develop personalized floorplans, select premium finishes, and deliver energy-efficient constructions that meet exact specifications while maintaining budget transparency throughout the building process.
People
Tony Gronowski
Owner Builder
With over 20 years of local building experience, Tony leads TG Building's projects personally. His hands-on approach ensures quality control and direct client communication throughout each build's lifecycle.
Questions
How important is budget planning at the start of a building project?
Setting a clear budget determines project scope, material choices, and design parameters. We help clients identify priorities to ensure informed decisions before design work begins.
Can I make changes during construction?
While possible, changes during building typically cause delays and cost overruns. We recommend finalizing all design decisions and material selections before construction starts.
How involved should homeowners be during the building process?
We encourage regular communication through email updates or site visits. The level of client involvement is flexible and determined by individual preferences.
Do you handle council approvals?
Yes, we manage the entire approval process including council submissions, engineer details, and BASIX certificates to ensure compliance with local regulations.
What areas do you service?
We operate throughout Sydney's North West region including the Hills District, providing personalized building solutions tailored to local requirements.