At Costello & Co, property management is personal.
Why Costello&Co?
At Costello & Co, property management is personal. You’re never passed from person to person or left waiting days for an update — you get real communication, real care and real results.
We look after every one of our landlords and tenants in-house, ensuring your property is managed with attention, consistency and transparency from day one. If you want a team who’s genuinely in your corner, you’ll feel right at home with us.
Whether you’re leasing out a newly purchased investment or switching from another agency, our approach is simple, great communication, thoughtful care, strong systems, and zero sneaky fees.
Why Our Landlords Feel Looked After
1. A real person in your corner
You’ll always speak with someone who knows your property, understands your goals and responds quickly. No runaround, no delayed replies — just a team who keeps you informed and supported at every stage.
2. Good people make great tenants
We complete all the essential checks, but we also look for tenants who genuinely care about where they live. Building strong relationships with our tenants leads to fewer issues, longer tenancies and more stable returns.
3. Leased quickly, leased carefully
With an active tenant database and efficient leasing process, we minimise downtime wherever possible. You can feel confident knowing we work quickly and carefully to secure the right tenant.
4. Maintenance made simple
We partner with reliable trades who offer fair pricing and quality workmanship. Whether it’s routine maintenance or urgent repairs, we handle it promptly and ensure everything is done properly.
Leased
What We Handle For You
We manage every detail so you don’t have to. This includes:
Professional rental marketing and advertising
Tenant sourcing and screening
Lease preparation and renewals
Rent reviews and increases
Routine inspections
Maintenance co-ordination
Rent collection and arrears management
Payment of bills and outgoings
Insurance claims
Tribunal representation
Comprehensive, clear and covered. Every step of the way.
Designed To Make Your Life Easier
Our approach is designed to protect your investment and maximise your return:
Higher rental income through strong tenant selection
Less stress. We handle all communication and issues
Full compliance with legislation and best practice
Long-term tenants through thorough screening
Complete financial management, including arrears
No hidden fees. No admin fees, no statement fees, no surprises
You’ll always know exactly what’s happening with your property.
Leased
How We Manage Your Property
Our management process keeps everything organised, transparent and simple:
Step 1. Rental evaluation
Step 2. Preparing the property
Step 3. Marketing setup
Step 4. Open inspections
Step 5. Application review
Step 6. Tenant selection
Step 7. Lease agreement
Step 8. Ongoing care and management
Every step is completed by our team. Never outsourced, never rushed.
Where We Manage Properties
We manage rental properties across Adelaide — from Glenelg, Brighton and Somerton Park to Burnside, Norwood, Prospect, Unley and everywhere in between. If your property is in Adelaide, we can manage it.
Let’s Talk About Your Property
Whether you’re leasing out your first investment or thinking about making the switch, we’d love to help.
Posted on PeteTrustindex verifies that the original source of the review is Google. Extremely happy with Stu from Costello & Co with the purchase of our property. Stu was absolutely amazing, went above and beyond to assist us in every way possible and his professionalism and clear communication was appreciated. He was always available to answer our questions and his prompt replies and assistance was just first class.Posted on Hendy LTrustindex verifies that the original source of the review is Google. I am really happy with Stu and his team in helping me selling my property in Adelaide. They were really good and always informed me every step of the way. We had few issues with settlement, however, Stu was always calm and informed me on the next step that I needed to take. Very happy with you and your team and I will recommend Stu to anyone that wants to sell their property in Adelaide. Thank you, Stu and Sharon.Posted on Hannah LTrustindex verifies that the original source of the review is Google. Stu, Sharon and Michelle and the team were an absolute pleasure to work with. I rented my unit and then sold it with them and they were a breeze to work with and took the stress out of renting. They were informative, excellent communicators and always so helpful! Thank you so much!Posted on Alex HTrustindex verifies that the original source of the review is Google. Stu is a fantastic agent whether selling a property, buying one or renting one. He provides great customer service with a lot of knowledge in the industry and is always available to help!Posted on Nick BTrustindex verifies that the original source of the review is Google. Posted on Stella ETrustindex verifies that the original source of the review is Google. We had a great experience as renters. When we had a water issue, we were really impressed with how quickly they responded to our email and resolved the problem. We can tell they really care about both the landlord and the renter, ensuring that everything is taken care of in a timely and professional manner. Highly recommend their service!Posted on Ania ATrustindex verifies that the original source of the review is Google. Posted on Rocco PTrustindex verifies that the original source of the review is Google. Stu and Sharon were awesome! They were very professional and communicated clearly. Never had a deal run so smooth from start to finish. Hope to do more business in the future. Highly recommend.Posted on Pramod ETrustindex verifies that the original source of the review is Google. Stu & Sharon were so helpful and professional, helped us buy our first property making the whole process stress free.Posted on Ryan BTrustindex verifies that the original source of the review is Google. We decided to sell our family home with Stu from Costello & Co Real Estate. The decision to sell our home was daunting, but once we met with Stu, Sharon and the team, we felt fully supported through the whole process and knew we made the right decision. Stu and his team had exceptional knowledge and systems in place, making it a very smooth process for us! We were kept up to date at every step and we couldn’t recommend Costello & Co more highly.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more