Strata and Body Corporate Solar for Common Property in Brisbane: A Committee Guide
Every Brisbane apartment building has a power bill nobody lives in: lifts, common-area lighting, pools, car-park ventilation, security systems, fire systems and pumps. That bill is paid from levies, which means every owner pays it whether or not they use the pool. Rooftop solar for common property is attractive for exactly that reason — it attacks a shared cost with a shared asset, on a roof the body corporate already controls.
It is also where strata solar most often goes wrong. Not because the panels fail, but because the committee, the installer and the owners never settled four questions before signing: whose roof space is being used, who pays and who benefits, how the electricity is metered, and what happens when a lot owner later wants their own panels on the same roof. This blog works through those questions for Brisbane buildings, with Queensland rules explained in plain English. It is general information, not legal advice for any particular scheme, and committees should confirm their scheme's by-laws, plan type and spending authority before committing.
1. Start with the building, not the quote
What kind of scheme is it? In Queensland, the answer changes the approval path. In a building format plan — the common arrangement for apartment buildings, where the roof and external surfaces are common property — the body corporate owns and maintains the roof. In a standard format plan, more common for townhouses, the roof is usually the lot owner's. The distinction matters because common-property solar is a body corporate decision about a shared asset, while a lot owner's panels on their own roof are a different approval altogether. Get the plan type from the scheme's records before any quote is compared.
What does the roof actually offer? A Brisbane roof that looks large from the street may be small once plant, lift overruns, antennas, access paths, shading from neighbouring towers and the space needed for maintenance are taken out. A feasibility assessment should measure usable roof area, orientation and shading, structural capacity, and the switchboard and metering arrangement. A quote based on a satellite image alone has not done this work, and a committee that accepts it is buying a number, not a system.
What is the common-area load? Common-property solar earns its keep against the common-area bill, so the first document to request is not a panel datasheet but twelve months of common-area electricity bills, ideally with interval data. A building whose big loads run at night — car-park lighting, security, some pool heating — will use less of its daytime solar directly than a building with daytime lifts, pumps and ventilation. That does not kill the case, but it changes the sizing, the export question and whether a battery deserves investigation. Size to the load, not to the roof.
2. Queensland rules committees actually need to know
A body corporate cannot simply ban solar infrastructure. Under Queensland's Building Act 1975, as clarified by 2022 amendments, a body corporate cannot use a by-law or other relevant instrument to prohibit solar infrastructure — solar panels or a solar hot water system — on a roof or external surface that is common property of a prescribed building, or withhold consent to install it there, except in limited circumstances. The Queensland Government's own guidance states the ability to withhold consent is very restricted: essentially, only to the extent necessary to preserve the building's structural integrity, or where there is insufficient space for each other owner to also install solar infrastructure on the surface. There is an additional noise condition for solar hot water piping.
That rule protects lot owners. It does not design a common-property system. The Building Act provisions are about an individual owner's right to install solar infrastructure, not about how a body corporate funds, owns and shares a single system for common areas. A committee still needs its own decision, under its scheme's rules, about spending, ownership and cost recovery. Confusing the two — "the Act says we cannot refuse, so the quote must be fine" — is one of the most common strata solar mistakes.
Spending authority depends on cost and the scheme's rules. Queensland body corporate guidance commonly describes a practical dividing line for improvements to common property: smaller amounts may be decided by the committee within its spending limit, while larger amounts go to owners at a general meeting. The exact threshold and process depend on the scheme's regulation module and by-laws, and committees should confirm them rather than rely on a general figure. What matters for solar is the sequence: feasibility first, a costed proposal second, and the decision at the right level, with the funding method — sinking fund, special levy, or another arrangement — stated in the motion, not discovered afterwards.
By-laws should be updated, not ignored. Even where a system is approved, the scheme benefits from a clear by-law or policy covering roof access for maintenance, who may install what later, how future lot-owner systems are allocated roof space, and what happens to the common system if the building is redeveloped or the roof is replaced. A roof replacement under a solar array is expensive if it was never planned; a maintenance access plan agreed in advance is cheap.
3. The four decisions that decide whether the savings are real
Decision 1: Who owns the system, and who gets the benefit? A body corporate-owned system that supplies common areas is the cleanest model: the body corporate pays, the body corporate's bill falls, and levies reflect the saving over time. Models that lease roof space to a third party, or sell power to lot owners, can work, but they introduce contracts, terms, price escalation and end-of-term questions that a committee must understand before signing. Any model where a third party keeps the system and the body corporate only gets a rent payment should be compared, in writing, with the body corporate owning the system outright. A lease that looks free in year one can be the most expensive option over twenty years.
Decision 2: How is the electricity metered? Common-property solar must be metered so the saving is visible and auditable: generation metering, export metering, and the common-area import meter, reconciled together. If the system also supplies any lot loads, or if lot owners later add their own systems, the metering design must keep common and private electricity separate from the start. Retrofitting that separation later is where strata solar disputes are born. Ask the tender to show the metering diagram, not just the panel layout.
Decision 3: How are costs and savings shared? For a common-property system, costs are normally recovered through levies in the usual proportions, and savings appear as lower common-area bills. That sounds fair until owners ask why a ground-floor owner who never uses the lift pays the same share as a top-floor owner, or why an owner with their own panels should also fund the common system. The answer is that common property is shared by entitlement, not by use — but the committee should be ready to explain it, in the meeting papers, before the vote, not after the first levy notice. Transparency at the decision stage prevents most disputes.
Decision 4: What happens to future lot-owner panels? This is the question committees forget, and the one that causes the most conflict. If the common system takes the best roof — north-facing, unshaded, easy access — and leaves nothing for lot owners, the body corporate may face a Building Act consent question later, when an owner claims there is insufficient space for their own installation. A good feasibility study reserves or allocates space, or records why allocation is not possible, so the committee's decision today does not become a dispute tomorrow. The same logic applies to a future EV charger load in the basement: roof, switchboard and metering decisions made for solar should not block the building's next electrical project.
Strata Solar Question | Get This Wrong | Get This Right |
Plan type and roof ownership | Approving a system on a roof the body corporate does not control | Scheme records confirm common property before any quote |
Common-area load profile | A system sized to the roof, exporting most of its output at a low feed-in value | Twelve months of bills and interval data drive the size |
Ownership model | A long lease that costs more than ownership over the system life | Body corporate ownership compared in writing with any lease or PPA |
Metering design | Common and private electricity mixed, savings nobody can audit | Generation, export and import meters reconciled, with separation for future systems |
Future roof space | No space left for lot-owner panels, and a consent dispute later | Allocation reserved or the constraint recorded in the decision papers |
Funding and approval level | A special levy nobody was told about | Funding method stated in the motion, decided at the right level |
4. Brisbane specifics: network, feed-in values and storm season
Energex is the network for South East Queensland. Connection approvals, inverter capacity and export arrangements for a Brisbane building are set through Energex, while Ergon Energy covers regional Queensland. A strata system, like any system, must fit its connection approval: the approval, not the quote, sets how much can be installed and exported. For a building, this also means checking switchboard capacity and whether common-area and lot metering arrangements allow the design the tender proposes. A quote that ignores the existing metering arrangement is not a complete quote.
Feed-in values in South East Queensland are retailer-set and low. Unlike regional Queensland, where a regulated rate applies, South East Queensland retailers set their own feed-in tariffs, often only a few cents per kilowatt-hour. That is why sizing to daytime common-area self-consumption matters more than maximising panels: electricity used on site displaces a retail import price, while exported electricity earns a much smaller feed-in value. Any payback figure that assumes a high feed-in value, or that treats export income as equal to import savings, should be treated as a line to verify, not a promise.
Storm season is a maintenance question, not just a weather question. Brisbane hail and summer storms raise two practical points for a strata system: panel and roof inspection after severe weather, and who is responsible for it. The body corporate's maintenance plan should name the inspector, the inspection trigger, and the insurer's notification requirements. Micro-cracks from hail are invisible to the naked eye, and a system that is never inspected after a storm can lose output silently for years. Budget for inspection as part of ownership, not as an afterthought.
Dated update, October 2026. The federal Cheaper Home Batteries Program, which began on 1 July 2025, is a residential program; a body corporate should not assume a common-property battery attracts the same support as a household battery, and any battery addition to a strata system needs its own eligibility and metering check. Separately, from 1 October 2026 the Clean Energy Regulator expanded Small-scale Renewable Energy Scheme eligibility for mid-scale solar from 100 kW to 1 MW, with applications expected in mid to late November 2026 — relevant to larger commercial-scale strata and commercial buildings, but not a reason to oversize a common-area system beyond its load.
5. How Both Sides Win
The committee and owners win when the system is sized to the common-area load, metered so savings are visible, and funded through a decision owners understood before they voted. The reward is lower levies over time and a documented asset, not a dispute about who benefited.
The strata manager wins when the meeting papers, the funding method and the maintenance plan are clear, because most strata solar complaints land on the manager's desk long after the installer has left.
The installer wins when the tender is judged on a complete design — roof, structure, switchboard, metering and maintenance — rather than on the lowest panel price, because a system that performs and can be audited generates referrals from neighbouring buildings, while a disputed system generates complaints.
6. What EServices4U would check independently
Tender and feasibility review for the common-property proposal — load profile, sizing, metering diagram, roof and structural assumptions, and payback arithmetic — from $299 for a solar and battery feasibility assessment, or from $495 for a Commercial Infrastructure Assessment / RPEQ & RPEV SLD Sign-Off where the engagement scope requires it.
Quote comparison where the committee has competing proposals, checking that each quote covers the same scope — panels, inverter, metering, switchboard work, maintenance and warranties — so the cheapest quote is not simply the least complete.
Switchboard and metering review for the building's existing arrangement, so the proposed design fits the connection approval and keeps common and private electricity separate.
Home Owner's Engineer services from $599 where that scope fits a lot owner's own installation alongside the common system.
Residential quote review from $149 for an individual lot owner's own solar or battery quote.
Scope and the qualifications required for each engineering engagement are confirmed before work starts. EServices4U does not sell installations and does not receive installer commissions, so the review is independent of the tenderers.
Frequently asked questions
Can our body corporate refuse a lot owner who wants panels on the common-property roof?
Only in the limited circumstances Queensland law allows — essentially, structural integrity or insufficient space for every owner to also install. The general rule restricts refusal. Committees should get scheme-specific advice rather than relying on a by-law that predates the 2022 clarifications.
Does common-property solar reduce every owner's levy equally?
Savings appear in the common-area bill, which is recovered through levies in the usual proportions. Individual owners will not see identical dollar savings, because levies are based on entitlements, not on personal electricity use. The meeting papers should explain this before the vote.
Should a body corporate lease its roof to a solar company instead of buying the system?
Sometimes a lease or power purchase arrangement suits a scheme with no capital available, but it must be compared in writing with ownership over the full term, including escalation, end-of-term removal or purchase, and what happens on roof replacement. A free system is rarely free.
What if some owners already have their own panels?
Their systems, their roof allocations and their metering must be mapped before the common system is designed, or the new system may take roof space or metering capacity those owners rely on. A feasibility study should record every existing installation.
Do we need a battery as well?
Only if the common-area load profile justifies it. A building with mostly daytime loads may gain little from a battery, while a building with large evening common loads may benefit. A battery should be assessed on its own load and metering case, not added because a quote bundles it.
Get an independent check before the committee votes
Start with a free 15-minute consultation to talk through your tender, system, building, or project and find out which fixed-fee review fits, if any. Call/WhatsApp 0480 001 498 or email growthpartner@eservices4u.com.au. No obligation, and it does not include a written report.
Solar and battery feasibility assessment — from $299. See packages and pricing.
Commercial Infrastructure Assessment / RPEQ & RPEV SLD Sign-Off — from $495.
Home Owner's Engineer services — from $599.
Residential solar quote review — from $149.
Learn more about EServices4U, the Owner's Engineer service, the team, or request a quote.
Based in Queensland, serving Australia-wide. EServices4U provides independent engineering advice; it does not sell solar installations and does not receive installer commissions.
