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C Graham Constructions Sunshine Coast QLD · QBCC Lic: 15114537
📞 0476 015 224
QBCC Licensed · Sunshine Coast QLD

Building the Sunshine Coast for 40 Years.

From granny flats and new homes to building inspections and major renovations — C Graham Constructions delivers quality workmanship backed by four decades of hands-on experience.

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40+ Years on the Coast
QBCC Licensed Builder
100% Local & Trusted
Sunshine Coast · Est. 1984

Our Project Mix

Builder-led quality across every project type on the Sunshine Coast.

Granny Flats38%
New Builds34%
Inspections28%

40+

Years Experience

QBCC

Licensed Queensland Builder

100%

Sunshine Coast Local

ALL

Building & Inspection Work

What We Do

Everything You Need to Build With Confidence

From the first slab to the final coat — we manage every stage of your project with the experience and care your build deserves.

🏠

Granny Flats

One of the best-performing property additions you can make on the Sunshine Coast. Whether it's rental income, extended family, or property value — we build them right.

Ideal for: Homeowners · Investors · Downsizers

Explore Granny Flat Builds →
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Building & Site Inspections

Know exactly what you're buying or building. We provide clear, jargon-free reports covering structural integrity, site conditions, and any issues that need attention.

Ideal for: Pre-purchase buyers · Developers · Investors

Book an Inspection Online →
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New Home Builds

We work with homeowners and developers to deliver well-designed, structurally sound new builds — finished to a high standard, on time and on budget.

Ideal for: Owner-builders · Developers · Investors

Talk to Us About Your Build →
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Renovations & Extensions

Adding a second storey, opening up living areas, or extending out the back — we specialise in extensions that blend seamlessly with your existing structure.

Ideal for: Growing families · Lifestyle upgrades

Get a Renovation Quote →
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Commercial Construction

We take on commercial projects across the Sunshine Coast — from fitouts to larger development works. We understand the timelines, compliance, and build quality required.

Ideal for: Business owners · Developers

Discuss Your Project →
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All Other Building Work

Decks, carports, structural repairs, shed conversions, council-approved outbuildings — no project is too specific. If it's construction on the Sunshine Coast, we've likely done it.

Ideal for: Any residential or commercial build need

Ask Us What's Possible →
Why Choose Us

40 Years of Building on the Sunshine Coast — Not Overnight

Our reputation wasn't built on marketing. It was built on showing up, doing the work, and standing behind every project we've ever completed.

01

Experience That Shows

Four decades of hands-on construction. We've solved every site condition, every council issue, and know what quality looks like from the ground up.

02

Builder & Inspector Combined

Carl brings both a builder's eye and a licensed inspector's precision to every project — catching problems before they cost you money.

03

Straight Talking, Fair Pricing

You'll get a clear scope, a fair price, and honest communication throughout. No hidden costs, no surprises on handover day.

04

Locally Owned & Operated

We live and work on the Sunshine Coast. Our reputation is our livelihood — and we protect it on every single job we take on.

Granny Flat Specialists

The Sunshine Coast's Most Cost-Effective Property Upgrade

A well-built granny flat can generate $450–$650/week in rental income on the Sunshine Coast, with a build cost that makes it one of the highest-yielding investments available to existing homeowners.

C Graham Constructions has been building granny flats on the Sunshine Coast for decades. We handle council approvals, site works, slab, frame, services, and fit-out — all from one contractor who answers the phone.

  • Full QLD DA and CDC approval management
  • Site assessment, design input and cost planning
  • Slab, frame, roofing and full fit-out included
  • QBCC licensed and fully insured
  • Typical build time: 12–18 weeks from approval
Request a Granny Flat Quote Ask a Question First
1 Bedroom Layout

Compact backyard suite

Ideal for small blocks and single-occupant rental — clean zones for living, sleeping and storage.

2 Bedroom Layout

High-yield rental layout

Two bedrooms, strong rental demand, and a layout suited to couples or small families.

How It Works

From First Call to Finished Build

We keep the process simple, transparent and stress-free — so you always know where your project stands.

  • 1

    Free Site Consultation

    We visit your site, discuss your goals, and give you a realistic picture of costs and timeframes — no obligation, no sales pitch.

  • 2

    Scope & Quote

    You receive a clear, detailed written quote covering all inclusions. No vague line items, no hidden extras.

  • 3

    Approvals & Planning

    We handle the council and QBCC paperwork so you don't have to. We'll manage the approval pathway from start to finish.

  • 4

    Build Commences

    Site prep, slab, frame, roof, services, fit-out — we manage every trade and keep you updated at each milestone.

  • 5

    Handover & Inspection

    Final walkthrough with Carl personally. Every item is checked before handover, and we don't leave until you're satisfied.

Typical Granny Flat Cost Breakdown

Budget guide for a standard 60m² 1-bed unit on the Sunshine Coast (2026 pricing).

Site Works
12%
Slab
15%
Frame & Roof
22%
Services
16%
Fit-Out
19%
Approvals
9%
Contingency
7%
Client Feedback

What Sunshine Coast Clients Say

★★★★★
"Carl built our granny flat from scratch — handled the approval, the slab, everything. Came in on budget and finished ahead of schedule. Now pulling in $520/week in rent. Couldn't ask for more."
— David R., Buderim QLD
★★★★★
"We used Carl for a pre-purchase inspection before buying our Maroochydore home. His report was incredibly detailed — flagged a drainage issue that saved us from a very expensive mistake."
— Sarah & Tom M., Maroochydore QLD
★★★★★
"40 years experience shows in everything — the way he reads a site, the trades he uses, the way he communicates. No surprises, no excuses. Just a great build. Would use C Graham Constructions again without hesitation."
— Mark P., Caloundra QLD
Numbers That Matter

Builder-Grade Data for Better Decisions

Real figures from four decades of Sunshine Coast construction — so you can plan with confidence, not guesswork.

Sunshine Coast Build Cost Index (2026)

Approximate cost-per-m² by project type, current market conditions.

Granny Flat
$2,200
New Home
$2,800
Extension
$3,100
Commercial
$3,400
Renovation
$2,500

Project Type Distribution

Share of work completed across our 40-year history on the Sunshine Coast.

Granny Flats & New Builds — 40%
Renovations & Extensions — 32%
Inspections & Commercial — 28%

Ready to start your Sunshine Coast build?

Free on-site consultation. No obligation. Just an honest conversation with an experienced builder who knows this area inside out.

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C Graham Constructions - Sunshine Coast Builder
Who We Are

Local Knowledge. Proven Results. Four Decades Deep.

Builder. Inspector. Developer.

"Independent construction expertise with a builder's eye for cost, buildability, and long-term value — developed over 40 years on the Sunshine Coast."

C Graham Constructions is a locally owned and operated construction business with a track record built on quality workmanship, honest pricing, and getting jobs done right the first time.

Carl Graham has worked through every phase of the industry — 15 years as a bricklayer, 20 as a builder, a decade in property development, and six years as a licensed building inspector. That breadth of experience means nothing gets missed, and nothing gets oversold.

We work across residential and commercial construction on the Sunshine Coast. Our builder-led approach means every project gets personal attention from start to finish.

Get in Touch 📞 Call Carl Directly
Get in Touch

Request a Free Quote or Site Consultation

Tell us about your project and we'll get back to you within one business day — usually faster.

Tell Us About Your Project

Free consultation · No obligation · Sunshine Coast only

Contact Details

📞
0476 015 224

Call or text Carl directly

✉️
cgrahamconstructions@gmail.com

Email enquiries welcome

📍
Sunshine Coast, QLD

Serving the full Sunshine Coast region

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Mon–Fri 7am–5pm

Weekends by appointment

Book an Inspection Online

Use our online booking system to schedule a building or site inspection — pre-purchase, new build stage, or investment property assessments.

Book Inspection →

Licence & Credentials

✅
QBCC Licensed Builder

Queensland Building & Construction Commission

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40 Years Experience

Bricklayer → Builder → Developer → Inspector

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Fully Insured

Public liability & contractors all risk