Granny Flat Builder Campbelltown

Design, Approval & Construction by Amescorp

Campbelltown is one of South West Sydney’s strongest suburbs for granny flat investment. Large residential blocks, a growing population driven by Western Sydney University and Campbelltown Hospital, and vacancy rates sitting below 1.5% make it an area where a well-built granny flat pays for itself quickly.

As a trusted granny flat builder Campbelltown homeowners rely on, Amescorp designs and builds custom granny flats across the Campbelltown LGA — from Ingleburn and Minto through to Leumeah, Ambarvale, Eagle Vale and Rosemeadow. We handle the entire project: site assessment, architectural design, CDC or DA approval, construction and handover. Every build comes with a fixed-price contract, a 16-week construction programme and a 6-year structural guarantee.

Fixed price

Once approvals are in place, we lock in your fixed price building contract

16 weeks

Standard build programme

6 years

Structural guarantee

26 min

From Campbelltown to our showroom

What Makes Campbelltown a Smart Location for a Granny Flat

Several factors make the Campbelltown LGA one of the most attractive areas in Sydney for building a granny flat. Unlike many parts of inner and middle-ring Sydney, Campbelltown offers a rare combination of affordable entry pricing, large lot sizes and growing tenant demand.

Generous Block Sizes

Many established suburbs in the Campbelltown LGA — including Ingleburn, Leumeah, Ambarvale and Ruse — feature residential lots of 600 m² to 800 m² or more. These larger blocks make it easier to design a granny flat with comfortable setbacks, private outdoor space and good natural light, while still meeting NSW planning requirements.

Strong Rental Demand

Campbelltown has a rental vacancy rate sitting between 0.9% and 1.4%, which is well below the Greater Sydney average. A quality 2-bedroom granny flat in the Campbelltown LGA typically rents for $490 – $600 per week. Demand is driven by Western Sydney University students, Campbelltown Hospital workers, young families and singles priced out of closer-to-city suburbs.

Major Infrastructure Investment

Campbelltown is positioned at the southern end of the Western Sydney growth corridor. The $1.28 billion Campbelltown Hospital redevelopment, the Western Sydney International Airport (opening 2026 at Badgerys Creek), new bus transit links and the ongoing expansion of the Macarthur region are all driving population growth and housing demand across the LGA.

Established Amenities

Unlike newer release areas that are still waiting for shops and schools, Campbelltown already has Macarthur Square, Campbelltown Mall, multiple schools, the T8 rail line to Sydney CBD, and direct M5 and M7 motorway access. Tenants and family members moving into a granny flat here have everything they need within a short drive.

Considering a granny flat in Campbelltown?

Speak with our team about design options suited to the Campbelltown area. Free consultation – no obligation.

Granny Flat Builder Campbelltown Designs for Local Properties

Every Amescorp granny flat is designed by our in-house architect around your specific block — its dimensions, orientation, slope and the position of the existing house. We tailor the layout to maximise natural light, ventilation and privacy for both the granny flat and the main dwelling.

Our design range covers 1, 2 and 3 bedroom layouts:

1 Bedroom

2 Bedroom

3 Bedroom

Explore our full granny flat design range with floor plans and specifications for every layout.

Standard Inclusions in Every Build

Amescorp provides a fixed-price contract with a detailed inclusions list — not a stripped-back base price. Every granny flat we build in Campbelltown includes:

Structure & Exterior

Concrete raft slab or Spantec steel pier subfloor (suited to the reactive clay soils common across Campbelltown)
Choice of brick veneer, Weathertex cladding, vinyl cladding or rendered polystyrene walls
Boral roof tiles or Colorbond metal roofing
450 mm eaves, metal fascia and guttering with 90 mm PVC downpipes
Tiled front porch with LED downlight

Kitchen

Polyurethane cupboards with slow-close finger-pull doors and drawers
20mm Stone Bench Top
Tiled splashback
600 mm electric glass cooktop and under-bench oven
Externally ducted rangehood and fridge water connection

Bathroom, Laundry & Bedrooms

Floor-to-ceiling wall tiling with feature tiles and porcelain floor tiles
600 mm polyurethane vanity, polished-edge mirror and close-coupled toilet
6-star tapware and shower fittings throughout
32 L stainless steel laundry tub with washing machine connections
Built-in wardrobes with shelving, drawers, hanging space and mirrored sliding doors

Electrical & Climate

Separate electricity meter — supply and installation included
3.5 kW Daikin reverse-cycle air conditioner
15 LED downlights, 2 sensor lights and hard-wired smoke detector
Digital TV antenna, TV/Foxtel/data points to lounge and main bedroom
Double power points throughout, plus external weatherproof power point

See and touch the actual finishes at our Glendenning showroom — where two complete granny flats are built to walk through.

How Granny Flat Approvals Work in the Campbelltown LGA

Granny flats (officially called secondary dwellings) are not listed as a permitted use in the Campbelltown Local Environmental Plan (CLEP) 2015. However, the NSW State Environmental Planning Policy (Housing) 2021 overrides the LEP and permits secondary dwellings across all residential zones in the Campbelltown LGA — including R1, R2, R3, R4 and R5.

There are two approval pathways. Most established Campbelltown properties qualify for the faster CDC option.

CDC - Complying Development Certificate

A CDC is assessed by a private certifier and bypasses Campbelltown City Council entirely. Approval can be issued in as little as 10–20 business days. Your property qualifies for CDC if it meets these criteria:

Minimum lot size of 450 m²
Minimum lot width of 12 m at the building line
Maximum internal floor area of 60 m²
Rear setback of at least 3 m
Side setback of 0.9 m (walls under 4.5 m) or 1.5 m (walls above 4.5 m)
Maximum building height of 8.5 m (pitched roof) or 3.8 m (flat roof, single storey)
Property not heritage-listed, flood-affected or in a BAL-40+ bushfire zone

DA - Development Application

If your property sits within a flood zone (parts of the Bow Bowing Creek, Leumeah Creek or Georges River corridors), is classified as bushfire-prone land, or doesn’t meet the standard setback requirements, you’ll need a DA through Campbelltown City Council. DA processing typically takes 45–90 days. Amescorp manages both CDC and DA applications on your behalf.

Campbelltown S7.11 Contributions

Under the Campbelltown Local Infrastructure Contributions Plan 2018 (Amendment 1), a Section 7.11 contribution applies to secondary dwellings. This is a flat-rate levy — currently estimated at approximately $15,500 (CPI-indexed quarterly). The contribution applies regardless of the build cost and is payable at the time of approval. We include this in our project costing so there are no surprises.

Not sure if your block qualifies? Use our free eligibility check to find out.

From First Call to Move-In: How the Process Works

We manage everything in-house. You deal with one team from start to finish — no chasing separate architects, engineers or certifiers.

Step
01

Online Assessment

We review your property address, check zoning and overlay maps, obtain sewer diagrams and discuss what you’re looking for. We then arrange an on-site visit at a time that suits you.

Step 02

Site Visit & Fixed-Price Proposal

Our consultant visits your block to assess slope, sewer position, access, demolition requirements and soil conditions. You receive a detailed, fixed-price proposal outlining every inclusion and site-specific cost. We also invite you to visit our showroom to walk through completed granny flats.

Step 03

Custom Design

Working with our in-house architect, you develop a floor plan that suits your block and your goals — whether that’s maximising rental appeal, accommodating an elderly parent, or creating a private home office. We refine the design until you’re satisfied.

Step 04

Approval

We prepare the complete documentation package: architectural plans, structural and hydraulic engineering, BASIX certificate and the CDC or DA submission. While approvals are processed, you select your preferred materials, colours and finishes.

Step 05

Construction & Handover

Once approved, we obtain Home Warranty Insurance and assign a dedicated site manager. Construction runs approximately 16 weeks. Your site manager provides regular updates, and we coordinate all trades, inspections and certifier sign-offs through to the final occupancy certificate.

Read the full breakdown on our process page.

Granny Flat Costs in Campbelltown: What to Expect

Every granny flat project is different, and the cost depends on your specific site and the design you choose. We provide fixed-price contracts — so the price we quote is the price you pay.

The main factors that influence the final price of a granny flat in Campbelltown include:

Size

A studio or 1-bedroom layout is more affordable than a full 60 m², 3-bedroom design

Foundation

Campbelltown’s clay soils can be moderately to highly reactive; some sites need engineered pier foundations rather than a standard raft slab

Wall materials

Cladding is typically more cost-effective than full brick veneer

Sewer connections

The distance from the granny flat to the existing sewer main affects plumbing costs; Sydney Water build-over restrictions may also apply

Site access

Narrow side access or steep slopes affect how easily materials and equipment can reach the build area

Demolition

Removing existing structures, old sheds, pools or mature trees

S7.11 contribution

Currently estimated at approximately $15,500 for secondary dwellings in the Campbelltown LGA

Optional upgrades

Stone benchtops, semi-frameless shower screens, ceiling fans, additional power or data points

Rather than publishing generic price ranges, we recommend a free site inspection. Our consultant will assess your specific property and provide a detailed, itemised, fixed-price quote within days.

Get a site-specific quote

Every Campbelltown property is different. Book your free inspection and receive a fixed-price proposal with no hidden costs.

Granny flats we've built in Blacktown

Amescorp has completed multiple granny flat projects across the Blacktown LGA — including builds in Blacktown itself, Lalor Park, Doonside, Quakers Hill, Seven Hills and Minchinbury. We know the local site conditions, the common block layouts and the council requirements inside out.

View our completed Blacktown granny flat projects to see real examples of what we’ve built in your area. You can also explore our full granny flat project gallery featuring builds from across Sydney.

Who Builds a Granny Flat in Campbelltown?

Our Campbelltown clients build granny flats for a range of reasons. The most common include:

Investors

With 2-bedroom granny flats renting from $490 – $600 per week in the Campbelltown area, a well-designed build can deliver strong yields on construction cost. Campbelltown’s low vacancy rates and growing population — supported by the university, hospital and airport corridor — mean rental demand is consistent and growing.

Families Housing Ageing Parents

A granny flat gives parents or grandparents their own independent home — complete with kitchen, bathroom and living space — while keeping them close enough for daily support. This is one of the most common reasons our Campbelltown clients build.

First-Home Buyers and Young Couples

Some families build a granny flat on a parent’s Campbelltown property as a stepping stone into the housing market. It provides independent living at a fraction of the cost of buying a separate property.

Home Office or Creative Studio

A separate structure in the backyard provides a professional work environment away from household distractions — complete with climate control, power, data and its own entrance.

Why Campbelltown Homeowners Choose Amescorp

Proven Local Experience

We’ve completed granny flat projects across the broader Macarthur and South West Sydney region, including in Eagle Vale within the Campbelltown LGA. We understand the local soil conditions, common block layouts and the specific requirements of Campbelltown City Council.

Showroom You Can Walk Through

Our Glendenning showroom features two fully built granny flats you can walk through. See the actual materials, fittings and finishes before you commit. It’s the easiest way to understand what you’re getting.

In-House Architect & Engineer

Unlike builders who outsource design, we keep everything under one roof. Our in-house architect and structural engineer work together from day one, which means faster design turnarounds and builds that are properly engineered for your site.

Fixed-Price Contracts

Our proposals itemise every inclusion and every site cost. The price on your contract is the price you pay – no variations, no surprises.

6-Year Structural Guarantee

Every Amescorp build is backed by a 6-year structural guarantee and Home Warranty Insurance as required under NSW legislation.

Second-Generation Family Business

Amescorp is a second-generation family company. We’ve built our reputation on quality workmanship and genuine client relationships. Read more on our About Us page.

Finance Support

We work with specialist finance brokers who understand construction lending for granny flats. Visit our finance page for details.

Frequently Asked Questions - Granny Flats in Campbelltown

Can I build a granny flat on my Campbelltown property?

In most cases, yes. While the Campbelltown LEP 2015 does not list secondary dwellings as a permitted use, the NSW Housing SEPP 2021 overrides this and permits granny flats across all residential zones (R1–R5) in the Campbelltown LGA. Your block needs to be at least 450 m².

How long does the entire process take?

From your first consultation to move-in day, expect approximately 4–6 months. This includes 2–4 weeks for design, 2–4 weeks for CDC approval (longer for DA), and approximately 16 weeks of construction.

What is the maximum size allowed?

The maximum internal floor area is 60 m². Alternatively, the granny flat can be up to 10% of the total floor area of the principal dwelling — whichever is greater. Within 60 m², we routinely fit 3 bedrooms, a full kitchen, bathroom with laundry and an open-plan living area.

Can I use a pre-manufactured or relocatable home?

No. Under the Housing SEPP, pre-manufactured homes are not permitted as secondary dwellings in the Campbelltown LGA. The granny flat must be a conventionally constructed building. All Amescorp granny flats are custom-built on site.

Do I need to pay council contributions?

Yes. Campbelltown City Council charges a Section 7.11 contribution for secondary dwellings under the Campbelltown Local Infrastructure Contributions Plan 2018. The current flat-rate levy is estimated at approximately $15,500 (CPI-indexed). We include this cost in our project proposals.

Can I rent my granny flat to anyone?

Yes. Under NSW law, granny flats can be rented to any tenant — not just family members. This is a key advantage compared to states like Victoria, where secondary dwelling tenants must be family dependants.

What about bushfire or flood zones in Campbelltown?

Parts of the Campbelltown LGA are classified as bushfire-prone or flood-affected (particularly along the Bow Bowing Creek, Leumeah Creek and Georges River corridors). Properties in these areas typically require a DA rather than a CDC, and the granny flat design may need to incorporate specific bushfire or flood planning measures. We assess all of this during your free site inspection.

Will a granny flat add value to my Campbelltown property?

Yes. A well-built granny flat typically adds between $150,000 and $250,000 to a property’s resale value in South West Sydney, on top of the ongoing rental income it generates. The lot cannot be subdivided, but the increased income potential is reflected in the property’s valuation.

Choose a Granny Flat Builder Campbelltown Homeowners Trust

Amescorp is a second-generation family builder with proven experience across the Macarthur region. We offer fixed-price contracts, an in-house design team, a 16-week build programme and a 6-year structural guarantee.

The first step is a free site inspection. Our consultant will visit your Campbelltown property, assess eligibility, discuss your design preferences and provide a detailed, no-obligation quote.

Visit our showroom:

Unit 1, 597 Woodstock Ave, Glendenning NSW 2761.

Our Testimonials

        EXCELLENT  
   Based on 138 reviews 
    
 
 
 
   
 
 
      Posted on Google  
   
   Kylie Holt 
 100 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +7
From the very beginning when we were looking at people to build with, to lock up. The service was exceptional. The quality is great. The people were lovely. And most of all the price was The best Of all the quotes we received. You won’t regret building your granny flat with Amescorp
  
 
     Posted on Google  
   
   Ather Mohammed 
 103 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +0
We recently completed a granny flat project with Amescorp and are very happy with the final outcome. From the beginning, Ramon Dunlany was professional, knowledgeable, and helpful in guiding us through the planning and sales process. Throughout construction, Danny Lazar did an excellent job as project coordinator, always being approachable, responsive, and willing to assist whenever questions arose. As with many construction projects, there were some delays along the way, which at times was frustrating. However, the team remained professional, kept us informed, and stayed focused on delivering a quality result. The finished granny flat has been completed to a high standard, and we are very pleased with the workmanship, presentation, and overall quality of the build. The end result was worth the wait, and we appreciate the efforts of everyone involved. We would happily recommend Amescorp to anyone considering a granny flat project.
  
 
     Posted on Google  
   
   C Sal 
 130 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +2
Construction started in October and still not turned over (over 7 months now!). The team at Amescorp are good people to work with. Unfortunately, they had issues with their sub-contractors which significantly delayed our project. Just some pointers: (1)Double check the kitchen design. As my photo shows, there is a window right where the sink is. The silicone in mine would likely mould in due time as water would splatter over the window from the kitchen sink when cleaning dishes. (The foreman says it's ok though.) (2) Be careful also about the council fees. They advised it would just be around 5-6k but my bill came to 21k. (3) Make sure also you don't let their tradies use your water hoses or any of your facilities for that matter. Their workers broke my retractable water hose.
  
 
     Posted on Google  
   
   Apsar Shaik 
 160 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +4
Big thanks to the Amescorp team for completing our granny flat - really happy with how it turned out. They delivered more than what was promised and the quality shows. Danny, the construction manager, was excellent throughout. He’s professional, friendly, and clearly knows his work and his team well, which made the whole process a lot smoother for us. He made sure everything from structure, brick work and gyprock to painting and tiling was done properly. He was easy to deal with, gave helpful suggestions, and regularly checked in to make sure things were on track. Danny also handled unexpected issues smoothly, providing practical solutions without driving up the cost. Being completely honest, I do want to add a small word of caution regarding the plumbing work. While the overall service was good, the plumbing side of things didn’t quite meet the same standard and could definitely be improved. Apart from that, we really appreciated how well they kept things organised throughout the build. Everyone who’s seen the granny flat has had great things to say, and even a few neighbours have asked about Amescorp for their own projects. Building is about turning your dream into reality, and having a team you can trust makes it all a pleasant journey.
  
 
     Posted on Google  
   
   Michael Giles 
 182 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +3
We recently completed a 60sqm granny flat build with Amescorp and had a fantastic experience from start to finish. The whole process was smooth, well organised, and delivered on time with no major issues. A special thank you to our site foreman, Steve, who was outstanding throughout the entire build. He kept everything running smoothly, communicated clearly, and was always approachable whenever we had questions. It was obvious he genuinely cared about the quality of the build and making sure everything was done properly. Building can often be a stressful process, but Steve made it easy and straightforward for us. We really appreciated his professionalism and attention to detail. Very happy with the final result and would happily recommend Amescorp to anyone considering building a granny flat.
  
 
     Posted on Google  
   
   George Ghattas 
 347 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +6
Great outcome. project manager danny was so accommodating to all the changes we did along the way, nothing was too hard. The pictures don’t do it justice. The quality of the construction is to a high standard. Any imperfections were spotted by danny and rectified immediately. Great honest company. Can’t wait for the next project. Definitely coming back. They make the whole process seamless.
  
 
     Posted on Google  
   
   Chris Bouziannis 
 360 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +6
I build my first granny house with Amescorp and met my expectations with the quality of the build , material used and the staff and contractors all have been excellent. This was all due to having a great project manager that Amescorp gave me as Danny . I was that happy that I am now looking at building my second granny flat as an investment property to increase my returns as a self funded retiree . I built my second granny flat and had it competed in September 2025. Again very happy with the quality of the build and the professional way the Project Manager Danny managed this project . Highly recommended company
  
 
     Posted on Google  
   
   Rosa Ienna 
 370 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +5
Thank you team for being so sufficient and supporting during my building process of my granny flat in Central Coast. You all have been very communicative and awesome to deal with. I built my flat with a building process that normally takes 6 months that only took 4 months approximately! Thank you Ali and the team for helping me through a meant to be stressful journey that has been nothing but stress FREE. Contact the Amescorp team to experience the stress free building process. Highly recommend! Thanks again team :)
  
 
     Posted on Google  
   
   Joy Abdallah 
 422 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +4
Very Professional, Best Material and Worksmaship, Great Value. Amescorp uses the best grade material and built a 5 star granny flat. They provide 10 lineal meter PU kitchen cabinets, floor to ceiling tiled bathroom and great flooring tiles with best selection, stone benchtop and many other premium features. Their structural , foundation, frames and roofs are all superb quality and engineering. The Team both office ( Carl, Alisha, Jess , James ) are very professional and helpful and the site team led by Steve the supervisor is friendly and easy to work with. They are not trying to upsell anything nor chasing variations. They deliver all works within the agreed contract. They engage the best tradies and Subcontractors who are a very friendly,  professional and did a great job. Amescorp is a 5 star builder that goes above and beyond and spares no cost or resource to provide an exceptional build. The only criticism or area of improvement, if i have to add a negative, is at handover they were bit slow to finish all works and handed over the site with some minor finishing works and touch up outstanding, which i am still chasing to close . But that is common in all building works. But Overall I was very happy with Amescorp’s work and quality.
  
 
     Posted on Google  
   
   Chris Loulach 
 611 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +0
amescorp are the best in the business when it comes to granny flats, fast turn around competitive pricing, and always attentive to my needs a special thanks to danny who fulfilled all my requests.
  
 
 
  
 
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