Main Arm is a small locality of about 600 people in NSW’s Byron, made up almost entirely of houses. With a median weekly rent of $450 and family-sized households averaging 2.8 people, this page brings together verified ABS Census measures to help you gauge the local market and where Main Arm blocks may hold value. Then audit a specific block to see its exact value and development potential.
Source: ABS Census 2021 · Reference: August 2021 · Suburb-level
We don't publish current Main Arm sale prices yet. Individual sale records are not published here. Figures shown are suburb-level medians from ABS/Census sources — audit an exact address for property-specific analysis. The figures above are ABS Census measures; for a current, address-specific estimate and value-add scenarios, audit the exact property.
Source: OpenStreetMap · as of August 2026 · indicative, counted within the suburb boundary
General value-add directions — none of these imply approval for any specific site. Exact feasibility depends on the block and its planning controls.
Refresh kitchens, bathrooms and finishes to lift value without structural change.
Audit your addressAdd living space upward where the existing dwelling and site allow.
Audit your addressTwo dwellings on one lot can be viable on suitable blocks under the right controls.
Audit your addressLarger or wider lots may support subdivision, subject to minimum-lot rules.
Audit your addressReplacing an older dwelling can unlock a site’s full potential.
Audit your addressMain Arm is made up of a mix of planning zones (below); residential development potential depends on the exact site.
Planning instrument: Byron Local Environmental Plan 2014; Tweed Local Environmental Plan 2014.
NSW's low- and mid-rise housing reforms are progressively lifting what's permissible near centres and transport across the state, so a Main Arm site's potential today can differ from its history. Exact controls — zone, height, floor-space ratio, minimum lot size, heritage and any coastal or environmental overlays — vary by address, planning instrument, site and proposal. Confirm them for a specific site.
Zoning source: NSW ePlanning (EPI Primary Planning Layers) · as of August 2026. General and qualified — verify controls for any specific address.
Often, yes — on a qualifying lot. On residential land, dual occupancy is generally permissible on sites that meet the minimum lot size and other controls under Byron Local Environmental Plan 2014; Tweed Local Environmental Plan 2014. Whether a specific block qualifies depends on its size, shape and frontage — audit an exact Main Arm address to confirm.
Usually, yes — on a suitable residential lot. A secondary dwelling (granny flat) is generally permitted on residential lots in Main Arm that meet the NSW housing SEPP criteria for lot size and setbacks. Audit your Main Arm address to check feasibility for the exact site.
Sometimes — it depends on your block. Subdivision in Main Arm is governed by the minimum lot size for the zone under Byron Local Environmental Plan 2014; Tweed Local Environmental Plan 2014; larger or wider lots have the most potential. Audit an exact address to see whether subdivision is on the table.
Main Arm's development potential is set by its zoning under the local Environmental Planning Instrument, which varies by address. Audit an exact Main Arm block to see what it can become.
We don't publish current sale prices on this page yet — the figures shown are measured ABS Census medians, not live sale data. For a current, address-specific value estimate, run a free Upblock audit.
Population, dwelling and median figures are from the ABS 2021 Census; amenity counts from OpenStreetMap; zoning from the NSW ePlanning planning layers. Each is labelled with its source.
Public suburb pages never expose an individual owner's identity, contact details or selling intent. Address-specific analysis runs inside Upblock's private audit flow.
Enter your address to see what yours could become.
Disclaimer: Upblock provides indicative property insights for research purposes only. All information should be verified independently with qualified professionals. This is not financial, legal, or professional advice. Estimates and scenarios are indicative only and do not constitute property valuations.
