집짓기 지식 모음
실무 안내와 실제 사례, 전문가 조언입니다. 다음 결정을 짐작으로 하지 않으셔도 됩니다.
이 글은 현재 영어 판만 있습니다. 그 바깥 화면은 선택하신 언어를 따릅니다.
DA vs CDC: Which Approval Path Is Right for Your KDR?
Development Applications and Complying Development Certificates both have a role in KDR projects — but they come with very different timelines, costs, and flexibility.
How Much Does a Knockdown Rebuild Cost in Australia? (2026)
From demolition to handover, a realistic breakdown of KDR costs across Sydney, Melbourne, Brisbane, and Perth — plus the variables that move the number most.
Heritage Overlays & KDR: What You Need to Know
A heritage overlay doesn't necessarily mean you can't knock down and rebuild — but it does mean a more complex process. Here's what it affects and how to navigate it.
Construction Loans for KDR: How They Work
A construction loan is fundamentally different from a normal home loan — and getting the structure wrong can cost you dearly. Here's exactly how they work for KDR.
5 Things to Check Before Buying a Block for KDR
Not every property with a tired house is a good KDR candidate. Before you buy, here are five checks that can save you from a very expensive mistake.
Our Strathfield KDR: 18 Months, $1.4M, and Everything We Learned
A first-hand account of a KDR project in inner-west Sydney — from the first council inquiry to moving-in day. The good, the bad, and the expensive surprises.
Choosing Building Materials for Your KDR: Local vs Imported
From windows to floor tiles, the materials you choose affect cost, quality, lead times, and warranty support. Here's a practical guide to making smart choices.
KDR vs Renovation vs Extension vs Granny Flat: Which Is Right for You?
Four paths, one old house. Before you decide anything, here's the honest financial and practical comparison that most guides don't give you.
Australian Granny Flat Rules by State: The Complete 2026 Guide
NSW, VIC, QLD, WA, SA, ACT — every state has different rules on size, lot size, approval type, and who can live there. Here's the definitive comparison.
How Much Does a Granny Flat Cost in Australia? (2026 Real Numbers)
From a basic studio to a fully self-contained 2-bedroom dwelling — here are the real build costs, hidden extras, and how to get the best value for your budget.
Renting Out Your Granny Flat: Income, Tax, and Everything You Need to Know
All states now allow you to rent your granny flat to anyone. Here's the honest guide to rental income, landlord responsibilities, tax implications, and the family arrangement rules.
RBA Rate Cuts & Construction Loans: What KDR Borrowers Need to Know in 2026
After a sustained rate cycle, the RBA has moved. Here's what that means for your construction loan repayments, draw schedules, and how to lock in the best deal now.
When Your Neighbour Objects to Your DA: What Actually Happens
Fear of neighbour objections stops many homeowners from pursuing legitimate developments. Here's the reality of what happens, what rights neighbours actually have, and how councils decide.
Dual Occupancy vs Single KDR: Running the Numbers in 2026
If your block is large enough, you may have a choice: build one quality home, or two smaller ones. The financial difference can be substantial — but so are the risks.
7-Star Energy Rating: What Every KDR Builder Must Do in 2026
NCC 2022 introduced mandatory 7-star NatHERS energy ratings for new homes. Here's exactly what that means for your build cost, design, and material choices.
7 Things That Will Delay Your KDR Build (And How to Avoid Them)
Most KDR builds run over schedule. These are the seven most common causes of delay — and the steps you can take before you even sign a building contract to protect your timeline.
Box Hill Townhouse: How One Family Turned a Single Block Into Four Homes
The Chen family's journey from a single-storey fibro home on a 900m² Box Hill block to four modern townhouses — the numbers, the challenges, and what they'd do differently.
Soil Testing Before Your KDR: Why a Geotech Report Could Save You $50,000
Skipping a geotechnical report before signing your building contract is one of the most common — and costly — mistakes in Australian KDR projects. Here's exactly what it tests, what it costs, and how to use it.
Do You Need an Independent Building Inspector During Construction?
Your builder has a certifier. But that certifier works for the system, not for you. Here's what independent inspections cost, what they find, and when you need them.
Fixed Price vs Cost-Plus Building Contracts: What Australian Homeowners Need to Know
Not all building contracts protect you equally. Understanding the difference between fixed price, cost-plus, and design-and-construct contracts could save you tens of thousands.
Asbestos in Your Old Home: What KDR Owners Must Know Before Demolition
About one in three Australian homes built before 1987 contains asbestos. Here's how to identify it, what removal costs, and how to avoid paying twice.
How Much Does a Knockdown Rebuild Cost in Australia 2026
A detailed breakdown of knockdown rebuild costs across Australia in 2026 — from demolition to final handover, including hidden costs most people miss.
DA vs CDC: Which Approval Path for Your Build
Development Application or Complying Development Certificate? Understanding the differences in cost, timeline, and flexibility could save you months on your build.
How to Choose a Builder in Australia: Complete Checklist
Choosing the wrong builder is the most expensive mistake in residential construction. Here is a systematic checklist to protect yourself.
Granny Flat Rules by State: What You Can Build in 2026
Granny flat rules vary dramatically across Australian states. This state-by-state guide covers size limits, lot requirements, and approval pathways for 2026.
Construction Loan: How It Works and How to Apply
Construction loans work differently from standard home loans. Understand progressive drawdowns, deposit requirements, and how to get pre-approved for your build.
Heritage Overlay: Can You Still Knock Down and Rebuild?
A heritage overlay does not necessarily mean you cannot build. Understanding the difference between conservation areas and individual listings is the key.
Dual Occupancy: Build Two Homes on One Block
Dual occupancy lets you build two dwellings on a single lot — attached or detached. Here is everything you need to know about lot sizes, costs, and approvals.
Building Costs by State: Sydney vs Melbourne vs Brisbane 2026
Building costs vary up to 30% between Australian cities. This data-driven comparison covers per-sqm rates, labour costs, and why prices differ across states.
NCC 2025 Changes: What Builders Need to Know
The National Construction Code 2025 introduces stricter energy efficiency, accessibility, and condensation management standards. Here's what changes, what it costs, and how to prepare.
How Long Does a Knockdown Rebuild Take? Timeline Guide
From initial planning to moving in, a knockdown rebuild typically takes 12–18 months. Here's a realistic stage-by-stage timeline and the most common causes of delays.
Site Costs Explained: What's Hiding Under Your Block
Site costs are the most unpredictable part of a new build. From soil conditions to rock removal, here's what can push your budget from $10k to $100k+ — and how to find out early.
Owner Builder Permit: Should You Manage Your Own Build?
An owner builder permit lets you manage your own residential build without a licensed builder. It can save money — but the risks, insurance gaps, and resale implications are significant.
Council DA Processing Times: Fastest and Slowest in Australia
DA processing times vary dramatically across Australian councils — from 30 days to over 300. Here's real data on processing times and what you can do to speed up your approval.
Asbestos Removal Before Demolition: Cost and Process
If your home was built before 1987, it almost certainly contains asbestos. Here's what you need to know about testing, removal costs, regulations, and finding licensed removers.
BASIX Certificate NSW: Requirements and How to Get One
Every new home and major renovation in NSW requires a BASIX certificate. Here's what it is, what the energy, water, and thermal targets are, how to apply, and what it costs.
How to Read a Building Contract: Key Clauses to Check
A building contract is one of the largest financial commitments you'll make. Here's a practical guide to the key clauses — fixed price vs cost plus, variations, payment schedules, defect liability, and cooling off periods.