Pyrmont Firm Handles All Property Functions Through One Contact

One Contact for Leasing, Inspections, and Maintenance: How This Sydney Agency Runs Its Operations

Pyrmont, Australia – May 8, 2026 / Onside Property Group /

Onside Property Group, a boutique property management agency based in Pyrmont, has announced its formal expansion across Sydney’s inner west, representing a notable growth milestone for the founder-led firm. Anthony Doumanis, who built the agency from its base at 3/04 56 Bowman St, Pyrmont NSW 2009, established the business on a straightforward premise: that landlords deserve direct, consistent access to the person managing their investment – not a succession of rotating staff.

A Founder Who Stays on the Tools

Doumanis launched Onside Property Group after identifying a gap in how larger firms approached the day-to-day realities of property management Sydney landlords face. Where bigger agencies typically assign clients across multiple departments and contacts, Doumanis structured his agency so that he remains personally involved in every client relationship. That approach, uncommon by industry standards, has become the defining characteristic of the business.

Landlords who contact the agency reach Doumanis directly on +61431833333 – a detail that reflects the agency’s operational philosophy rather than simply its size. As the business has extended into surrounding inner west suburbs, that direct-access model has been deliberately maintained rather than scaled away.

“When I started this agency, I made a commitment that every client would have direct access to me – not a property manager who changes every six months,” said Anthony Doumanis, Founder of Onside Property Group. “We now manage properties across more than a dozen inner west suburbs, and I am still personally involved in every single one of those relationships from day one.”

What the Boutique Model Actually Delivers

The difference between a boutique property management agency and a large corporate firm extends beyond scale. At Onside Property Group, the practical distinction is visible in response times, tenant vetting decisions, maintenance coordination, and the speed at which landlords receive information when issues arise.

Larger agencies operating across property management Sydney markets typically carry portfolios of several hundred properties per manager. Industry benchmarks suggest that ratio makes individualized attention structurally difficult to sustain. Doumanis designed Onside Property Group around a deliberately lower client-to-manager ratio, with himself as the primary point of contact for landlords throughout the inner west.

The agency manages residential investment properties across Pyrmont and the broader inner west corridor, handling lease negotiations, routine inspections, tenant communications, and financial reporting. Each of those functions is coordinated through a single accountable contact rather than distributed across departments.

Expansion Built on Referrals, Not Advertising

Onside Property Group’s growth into additional inner west suburbs has been driven primarily by referrals from existing clients – a pattern Doumanis attributes to operational consistency rather than any formal marketing effort. Landlords who have dealt with high staff turnover or fragmented communication at larger firms have sought out the agency specifically because of its founder-led structure.

The expansion has brought the agency into contact with a wider range of property types and investor profiles, including those managing a first investment property alongside landlords with larger portfolios who have grown dissatisfied with service levels at corporate firms.

The agency’s Pyrmont office serves as the operational hub for all properties under management, with Doumanis coordinating directly with tenants, landlords, tradespeople, and compliance requirements across each property in the portfolio. That centralized, founder-involved structure is what Onside Property Group points to when distinguishing itself from competitors in the Sydney market.

About Onside Property Group

Onside Property Group is a boutique property management agency founded by Anthony Doumanis and located at 3/04 56 Bowman St, Pyrmont NSW 2009. The agency provides residential property management Sydney services across the inner west, with a founder-led model that keeps Anthony Doumanis directly involved in every client relationship. The agency can be reached by phone at +61431833333.

Learn more at Onside Property Group