01 
Free Site Visit & Quote
We come to your property, walk the site with you, and tell you what's actually possible. You leave with a fixed-fee quote and a clear path forward. No charge.
For homeowners
Building on land you already own.
Granny flat, duplex, knockdown rebuild or major renovation — design, engineering, and council approval delivered by one Sydney team. Fixed fee. 100% council approval rate.
You've pictured the home (or the granny flat, or the duplex) for years. Now you need a team that turns that picture into approved drawings without months of delays and a relay race of consultants pointing fingers at each other.
We work with hundreds of Sydney homeowners every year. Most of them tell us the same thing afterwards: “I wish I'd just started here instead of trying to coordinate it myself.”
What's right for you
We knocked down our family home of 30 years and rebuilt. Nemco handled the demolition application, design, engineering, and council — we didn't have to chase a single sub-consultant. That alone was worth the fee.
Patrick Sioud Knockdown rebuild · Padstow
Nemco took our granny flat from a sketch on a napkin to a CDC certificate in under a month. Every other firm we'd spoken to wanted a four-month design phase first. Honest, fast, and they answer the phone.
Mario Nowfal Granny flat · Greenacre
Four steps from idea to approval.
02 
Detailed Site Survey
Our team measures your site to the millimetre so the design is 100% accurate from day one. No nasty surprises during construction.
03 
Design & Engineering, In-House
Architectural plans, structural engineering, hydraulics, certification — all drawn under one roof. No waiting six weeks for a sub-consultant to email back.
04 
Council & Certifier Liaison
We deal with council and the private certifier on your behalf. We've worked with most Sydney councils for over a decade. That's why our approval rate is 100%.
Recently delivered.
What homeowners ask before they start.
How long does a DA take in Sydney for a granny flat or knockdown rebuild?
For straightforward residential work we lodge complete and design knowing what each council needs — typically 6–12 weeks once submitted. The CDC pathway, where eligible, is often approved in 21 days.
Do I need a DA or a CDC for what I want to build?
A CDC is faster but only available if your project meets specific complying-development rules (lot size, setbacks, height). A DA covers anything outside those rules and goes to council. Take our 90-second checker at /tools/da-vs-cdc to find out which path applies.
How much does design + engineering + approval cost for a homeowner project?
Typical residential scopes run from a few thousand for a granny flat to tens of thousands for a duplex or knockdown rebuild — depending on size, complexity, and council. We give you a fixed quote at the free site visit so there's no surprise.
Do you handle the certifier and council, or do I?
We do all of it — lodgement, RFI responses, private certification — included in the fixed fee. You don't chase sub-consultants.
What happens if council pushes back on my design?
We design to council's actual requirements, not generic templates — that's why our approval rate is 100%. If a redesign is ever needed, we re-lodge at no cost.
Start here
Get a free site visit this week.
A 30-minute walk-through with one of our designers. No charge, no obligation. You'll leave knowing exactly what's possible on your block, what it'll cost, and how long it'll take.
Sydney metro only. Site visits typically available within 5 business days.