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Expert guides, project insights, and practical advice from Sydney's trusted construction team. Plain talk on engineering, compliance, costs and what good building actually looks like.

Civil & Structural Retaining Walls Concrete Works Underpinning Structural Remediation Residential Commercial Compliance & Approvals Project Management Demolition & Excavation NSW Standards Civil & Structural Retaining Walls Concrete Works Underpinning Structural Remediation Residential Commercial Compliance & Approvals Project Management Demolition & Excavation NSW Standards
/ All articles · 53 posts

Browse the journal.

Plain-language guides written by our team. Filter by topic, or read the latest below.

Civil
Civil23 June 202613 min read

How to Prepare for Excavation Properly

How to prepare for excavation in Sydney and NSW — approvals, underground services, access, ground conditions, drainage, safety and choosing the right contractor before machinery arrives.

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Compliance
Compliance23 June 202613 min read

Demolition Permit Requirements NSW

Demolition permit requirements NSW explained — DA vs CDC vs exempt development, documents needed, asbestos rules, service disconnections and how to approve demolition properly before work starts.

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Residential
Residential4 July 202615 min read

Choosing a Residential Builder Sydney

Choosing a residential builder Sydney homeowners can rely on — how to assess scope, structural capability, documentation and pricing so your extension, renovation or rebuild is managed, not just active.

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Project Mgmt
Project Mgmt3 July 202614 min read

How to Manage Building Approvals Properly

How to manage building approvals in NSW without losing time, money or control — scope, documentation, responsibility, timeframes and keeping approvals tied to the build programme.

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Structural
Structural2 July 202614 min read

Correct Load Bearing Wall Removal

Load bearing wall removal done properly in Sydney and NSW — how walls are assessed, how loads are transferred with beams and footings, what approvals apply, and the risks when it is handled badly.

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Retaining Walls
Retaining Walls3 June 202613 min read

7 Top Retaining Wall Materials Compared

The top retaining wall materials compared for Sydney and NSW — concrete sleepers, reinforced concrete, timber, blockwork, natural stone, gabion and sandstone. How to choose the right one.

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Compliance
Compliance3 June 202613 min read

Who Handles Builder Compliance Documentation?

Who handles builder compliance documentation on a NSW project? How responsibility is shared between the builder, owner, designer, engineer, certifier and trades — and what to ask before you sign.

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Residential
Residential2 June 202614 min read

Renovation vs Rebuild Decision in Sydney

Renovation vs rebuild decision guide for Sydney homeowners — how to compare structural condition, cost, approvals, compliance and long-term value before committing to either path.

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Structural
Structural2 June 202614 min read

What Causes Cracked House Slabs?

What causes cracked house slabs in NSW — reactive soil, drainage, site preparation, construction defects, tree roots and plumbing leaks. How to assess and when structural repair is needed.

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Compliance
Compliance2 June 202613 min read

Builder Insurance Comparison Review for NSW

A practical builder insurance comparison review for NSW — what public liability, contract works, home building compensation and workers comp actually cover, and what to check before signing.

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Project Mgmt
Project Mgmt2 June 202614 min read

Project Handover Checklist Guide for Builds

A practical project handover checklist guide for NSW builds — covering scope confirmation, defect review, compliance documents, warranties, commercial close-out and avoiding disputes.

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Project Mgmt
Project Mgmt26 May 202612 min read

Full Project Delivery Construction Explained

What full project delivery construction means in practice — how one licensed builder managing the full build sequence reduces risk, improves compliance and controls cost across Sydney and NSW.

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Structural
Structural26 May 202612 min read

How to Plan Structural Remediation

How to plan structural remediation properly in Sydney and NSW — from cause investigation and engineering scope through to approvals, costing, delivery and documentation.

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Compliance
Compliance26 May 202613 min read

Commercial Fitout Compliance Guide NSW

A practical commercial fitout compliance guide for NSW — covering approvals, fire safety, accessibility, services coordination, documentation and how to avoid costly non-compliance.

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Commercial
Commercial22 May 202610 min read

Commercial Fitout Design Trends in 2026

How commercial fitout design trends in 2026 are shifting towards durability, flexibility, acoustic performance and compliance-led planning across Sydney and NSW.

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Structural
Structural22 May 202612 min read

Structural Defect Rectification Process Explained

How the structural defect rectification process works in NSW — from investigation and engineering assessment through to compliant repair and documentation.

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Residential
Residential22 May 202611 min read

Renovation Versus Extensions Costs in Sydney

Comparing renovation versus extension costs in Sydney — what drives pricing, when each option makes better value, and how to budget properly before construction starts.

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Commercial
Commercial20 May 20268 min read

Commercial Fitout Costs in Sydney

A practical guide to commercial fitout costs in Sydney — what drives pricing, why budgets blow out, and how to get cleaner numbers before construction starts.

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Structural
Structural20 May 20269 min read

8 Best Ways to Prevent Subsidence

The best ways to prevent subsidence in Sydney — from drainage and tree management to footing design and early structural response. A practical guide for homeowners.

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Residential
Residential20 May 20269 min read

Best Builder for Extensions in Sydney

How to find the best builder for extensions in Sydney — what to look for, what to ask, and why capability matters more than the cheapest quote.

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Retaining Walls
Retaining WallsFebruary 20268 min read

The Complete Guide to Retaining Walls in Sydney

Everything you need to know about retaining walls in Sydney. Types, costs, council approvals, engineering requirements, and how to choose the right retaining wall builder in NSW.

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Residential
Residential18 May 20267 min read

Residential Construction Process Guide

A residential construction process guide for NSW homeowners, covering approvals, pricing, build stages, compliance and common delay points.

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Residential
Residential18 May 20266 min read

How to Choose a Granny Flat Builder NSW

Choosing a granny flat builder NSW owners can rely on means checking licences, approvals, pricing and build quality before work starts.

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Structural
Structural18 May 20266 min read

8 Best Ways to Prevent Subsidence

Learn the best ways to prevent subsidence, from drainage and trees to footing design, soil control and early repairs for lasting stability.

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Project Mgmt
Project Mgmt18 May 20265 min read

Builder vs Project Manager: What You Need

Builder vs project manager — know who handles approvals, trades, budgets and site delivery so your NSW build stays compliant and on track.

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Retaining Walls
Retaining Walls18 May 20266 min read

Retaining Wall Basics for NSW Sites

A retaining wall must do more than hold soil. Learn what matters in design, drainage, compliance and construction for NSW sites.

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Compliance
Compliance18 May 20265 min read

How to Choose a Licensed Builder Sydney

Need a licensed builder Sydney property owners can rely on? Learn what to check, what to ask and how to avoid costly compliance issues.

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Remedial
Remedial18 May 20267 min read

Remedial Building Work Done Properly

Remedial building work fixes structural defects, water damage and concrete issues with proper engineering, compliance and durable construction.

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Compliance
Compliance17 May 20265 min read

Can Builders Manage Council Approvals?

Can builders manage council approvals? Learn what a builder can handle, where consultants fit in, and how to avoid delays on NSW projects.

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Concrete
Concrete17 May 20266 min read

Concrete Slab vs Footings: What Suits Your Build?

Concrete slab vs footings explained for NSW builds. Learn the differences, costs, site factors and what suits your home or commercial project.

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Residential
Residential17 May 20266 min read

Choosing a First Floor Addition Builder

Choosing a first floor addition builder means checking structure, approvals, pricing and delivery discipline before work starts on site.

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Compliance
Compliance17 May 20265 min read

Why Hire a Fully Insured Builder

Why hire a fully insured builder? It protects your project, finances and liability while keeping compliance, documentation and quality on track.

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Project Mgmt
Project Mgmt17 May 20266 min read

Council Approval Project Management That Works

Council approval project management keeps complex builds on track, compliant and properly documented from planning through to construction.

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Compliance
Compliance17 May 20267 min read

Australian Building Compliance Guide

A practical Australian building compliance guide for NSW projects — approvals, standards, certificates and site issues that can affect cost and timing.

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Civil
Civil17 May 20266 min read

Choosing an Excavation and Footings Contractor

Choose an excavation and footings contractor with the right licence, engineering focus and site control to avoid delays, defects and cost blowouts.

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Commercial
Commercial17 May 20266 min read

Choosing a Commercial Fitout Builder

Need a commercial fitout builder in Sydney? Learn what to check before you appoint a builder, from compliance and cost control to delivery.

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Commercial
Commercial17 May 20267 min read

Commercial Refurbishment Planning Guide

A commercial refurbishment planning guide for Sydney projects, covering scope, approvals, budgeting, staging and compliance from day one.

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Commercial
Commercial17 May 20266 min read

Choosing a Commercial Refurbishment Contractor

Need a commercial refurbishment contractor in Sydney? Learn what to check, what to expect, and how to avoid delays, defects and cost blowouts.

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Remedial
Remedial17 May 20266 min read

Structural Repair Before and After Explained

See what structural repair before and after really means, from early warning signs to compliant rectification, documentation and durable results.

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Structural
Structural17 May 20265 min read

Top Signs of Foundation Movement at Home

Learn the top signs foundation movement causes in Sydney homes, what they mean, when to act, and how to avoid bigger structural repair costs.

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Remedial
Remedial17 May 20267 min read

Structural Repairs Sydney: What Matters Most

Need structural repairs Sydney property owners can trust? Learn what causes damage, what proper remediation involves, and how to avoid costly rework.

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Civil
Civil14 May 20268 min read

What Does Civil and Structural Engineering Entail?

What does civil and structural engineering entail? Learn how design, compliance, groundworks and construction coordination shape safe, durable builds.

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Civil
Civil13 May 20266 min read

Demolition and Site Clearing Done Properly

Demolition and site clearing sets the tone for the whole build. Get the process, compliance, costs and site risks right from the start.

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Structural
Structural13 May 20265 min read

Do I Need Underpinning? Signs to Check

Do I need underpinning? Learn the real signs, common causes and when Sydney property owners should get an engineer and builder involved.

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Structural
Structural13 May 20266 min read

Underpinning Builder Sydney: What to Check

Need an underpinning builder Sydney property owners can trust? Learn what to check, how the process works and how to avoid costly structural issues.

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Retaining Walls
Retaining Walls13 May 20267 min read

Engineered Retaining Wall Solutions That Last

Engineered retaining wall solutions for Sydney sites — built for compliance, drainage, stability and long-term performance, no shortcuts.

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Civil
Civil13 May 20267 min read

Choosing Civil and Structural Engineering Consultants

Need civil and structural engineering consultants? Learn what they do, when to involve them, and how better coordination avoids delays and rework.

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Concrete
Concrete12 May 20266 min read

Formwork and Steel Fixing Done Right

Formwork and steel fixing set the standard for concrete strength, safety and compliance. Get the detailing, sequencing and execution right.

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Civil
Civil12 May 20265 min read

Difference Between Civil and Structural Engineer

Understand the difference between civil and structural engineer roles, responsibilities and when each is needed on Sydney building projects.

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Concrete
Concrete12 May 20266 min read

Choosing a Concrete Works Contractor

Need a concrete works contractor in NSW? Learn what to check before hiring, from licensing and standards to scope, pricing and delivery.

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Retaining Walls
Retaining Walls12 May 20266 min read

How to Choose a Retaining Wall Builder

Choosing a retaining wall builder? Learn what matters most — engineering, drainage, approvals, pricing and build quality for NSW sites.

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Remedial
Remedial11 May 20266 min read

Choosing a Structural Remediation Contractor

Need a structural remediation contractor in NSW? Learn what to check, what to expect and how to avoid costly structural repair mistakes.

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Civil
Civil11 May 20265 min read

Civil vs Structural Engineering Explained

Civil vs structural engineering explained for Sydney projects — what each does, where they overlap, and why the right coordination matters.

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Civil
Civil11 May 20266 min read

What Is Civil and Structural Works?

What is civil and structural works? Learn what it covers, where scopes overlap, and why compliant delivery matters on NSW building projects.

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/ Frequently asked

Hiring a builder.
Common questions.

The questions every Sydney homeowner and developer asks before signing a building contract — answered plainly.

Q · 01How do I know if a builder is properly licensed in NSW?
Every residential builder in NSW must hold a current licence issued by NSW Fair Trading. You can verify any builder by searching their licence number on the Fair Trading website. For work valued over $20,000, builders must also carry HBCF insurance. METCON holds builder licence 318592C and DBP registration BUP4254812.
Q · 02How much does it cost to build in Sydney?
Sydney build costs vary widely with site conditions, finishes and complexity. As a rough guide for 2026: a standard single-storey extension runs $3,200–$4,800 per m²; a high-end custom home is $5,500–$8,500+ per m²; commercial fitouts range $1,800–$3,500 per m². We always provide a free, line-item written quote.
Q · 03How long will my building project take?
Approvals add 2–6 months before a shovel hits the ground, and a typical Sydney home extension runs 5–9 months. Larger new builds can be 9–18 months. Major variables are council approval pathway (CDC vs DA), weather, trade availability, and how locked-in your design is before site start.
Q · 04Do I need a DA or can I use a CDC?
CDCs are fast-track approvals (typically 20 working days). A DA is required for heritage zones, significant tree removal, exceeding setbacks or height, or non-conforming uses — taking 3–6 months through Sydney councils. We handle both pathways and advise upfront which applies.
Q · 05What insurance should my builder have?
A properly insured builder carries: Public Liability (minimum $20m), Workers Compensation, Contract Works / All-Risk insurance, and HBCF cover for residential jobs over $20k. Ask to see certificates of currency before signing. METCON carries all four.
Q · 06How do progress payments work in NSW?
Under the Home Building Act 1989, builders cannot demand more than 10% deposit on jobs over $20,000. Payments must be tied to defined stages (base, frame, lock-up, fixing, completion). A reputable builder will never ask for large upfront cash or money outside the contracted schedule.
Q · 07What is the difference between a builder, a project manager and a head contractor?
A builder holds the construction licence and warranty. A project manager oversees programme, budget and quality but does not hold the licence. A head contractor is a builder who also subcontracts and coordinates trades. METCON operates as a head contractor — one contract, one point of responsibility.
Q · 08Can I live in my home during a renovation?
Often yes for cosmetic renovations and most rear extensions. Underpinning, top-floor additions, kitchen relocations, and major structural work usually require relocation for safety. We do a “stay vs go” assessment as part of every quote.
Q · 09What warranty do I get on building work?
NSW residential work is covered by statutory warranties: 6 years for major defects (structural, waterproofing, fire safety) and 2 years for all other defects. These cannot be contracted out of and apply even if the builder goes out of business.
Q · 10How many quotes should I get before choosing a builder?
Three is the sweet spot. What matters is comparing like-for-like scope — not just the bottom-line number. Look at inclusions, exclusions, allowances and the builder's recent reference projects.
Q · 11What are red flags when hiring a Sydney builder?
Watch for: no fixed business address, unverifiable licence, requests for cash deposits, vague quotes, no written contract, no insurance certificate, refusal to provide references, pressure to sign on the spot, or unusually low pricing.
Q · 12Why does METCON coordinate the engineer rather than just follow drawings?
Drawings never cover every condition on site. A builder who can read engineering drawings and call the engineer directly saves days or weeks of rework. Our team has worked alongside structural and geotechnical engineers for 40+ years.
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