Pyrmont Agency Grows on Referrals With No Formal Ad Strategy

How a Pyrmont Property Firm Grew Across Sydney’s Inner West Without a Marketing Budget

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 established the agency at 3/04 56 Bowman St, Pyrmont NSW 2009 on a single operating principle: that landlords deserve consistent, direct access to the person responsible for managing their investment property – not a succession of rotating 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 typically distribute clients across multiple departments and contacts, Doumanis structured his firm so that he remains directly involved in every client relationship. That model, 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 current size. As the business has extended into surrounding inner west suburbs, that direct-access structure has been deliberately maintained rather than replaced with additional layers of 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 distinction between a boutique property management agency and a large corporate firm extends beyond scale alone. At Onside Property Group, the practical difference is visible in response times, tenant vetting decisions, maintenance coordination, and the speed at which landlords receive information when issues arise.

Larger firms operating across property management Sydney markets typically carry portfolios of several hundred properties per property manager. Industry data suggests 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 corridor.

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

Expansion Built on Referrals, Not Advertising

Onside Property Group’s growth into new inner west suburbs has been driven primarily by referrals from existing clients – a pattern Doumanis attributes to operational consistency rather than any formal marketing strategy. Landlords who have experienced 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 first-time landlords alongside those with larger portfolios who have become dissatisfied with service levels at corporate property management 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 approach is what Onside Property Group points to when distinguishing itself from competitors across 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 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