Inner West Landlords Reach Founder Directly at Boutique Sydney Firm

Why This Boutique Property Management Agency Still Has the Founder Answering the Phone

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

Onside Property Group, a boutique property management agency based in Pyrmont, has announced a formal expansion across Sydney’s inner west, representing a notable growth milestone for the founder-led firm. Anthony Doumanis established the agency at 3/04 56 Bowman St, Pyrmont NSW 2009, building it around a straightforward principle: that landlords deserve direct, consistent access to the person responsible for their investment – not a succession of changing staff members.

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 regularly encounter. Where bigger agencies frequently distribute client contact across multiple departments, Doumanis structured his firm so that he remains personally involved in every client relationship. That approach, atypical by broader 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 model rather than simply its size. As the business has extended into surrounding inner west suburbs, that direct-access structure has been deliberately maintained rather than replaced with layered management.

“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 operation is not solely a question of scale. At Onside Property Group, the practical distinction surfaces in response times, tenant vetting, maintenance coordination, and how promptly landlords receive information when issues arise.

Larger agencies operating across property management Sydney markets typically assign several hundred properties to each property manager. At those ratios, individualized attention becomes structurally difficult to sustain. Doumanis designed Onside Property Group around a lower client-to-manager ratio, positioning himself as the primary point of contact for landlords throughout the inner west corridor.

The agency manages residential investment properties across Pyrmont and the broader inner west, handling lease negotiations, routine inspections, tenant communications, and financial reporting. Each of those functions runs through a single accountable contact rather than being divided 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 structured marketing effort. Landlords who have experienced high staff turnover or unreliable communication at larger firms have sought out the agency specifically for 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 became 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 obligations across each property in the portfolio. That centralized, founder-involved structure is what Onside Property Group points to when distinguishing itself from other operators in the 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 services across Sydney’s 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