A townhouse can look and function like a separate house while still being governed by a body corporate, owners corporation or strata company. The front garden, driveway, roof, façade, dividing wall or service trench may be common property, exclusive-use common property or part of the individual lot. Appearance is not proof of ownership.
Renovate successfully by reading the registered plan first, then matching each proposed change to the scheme rules, public approvals and technical responsibilities. Townhouses need a different focus from apartments: ground-level courtyards, party walls, roofs, fences, trees, driveways and individually serving equipment create recurring questions that are easy to overlook.
Confirm whether a scheme actually applies
Order current title and plan documents rather than relying on the real-estate listing. In Queensland, for example, official guidance notes that a community titles scheme can include townhouses and even freestanding houses, not only high-rise units. Other states use different terms and plan formats.
Collect:
- the registered survey, strata or subdivision plan;
- title, easements and relevant covenants;
- current by-laws or rules;
- exclusive-use or special-use allocations;
- renovation and architectural guidelines;
- recent minutes discussing similar work or building defects;
- insurance information; and
- available approved building and services drawings.
If there are several subsidiary or layered schemes, identify which entity controls each area. A driveway or entry road may belong to a higher-level body, while a small courtyard sits under another arrangement.
Draw a responsibility map
Colour-code the plan into lot property, common property, exclusive-use areas and uncertain zones. Add shared services and access routes. Ask the scheme to confirm uncertainties in writing, and obtain specialist title or surveying advice where the plan remains ambiguous.
| Townhouse element | Questions before design | Possible evidence |
|---|---|---|
| Party wall | Is it a lot boundary, structural element or fire separation? | Registered plan, building plans, professional assessment |
| Roof and gutters | Who owns and maintains each component? | Plan, rules and maintenance history |
| Courtyard | Is it in the lot or exclusive-use common property? | Plan and exclusive-use by-law |
| Fence | Is it a lot, scheme or external boundary? | Plan, fencing law and scheme records |
| Driveway | Is it private, shared or needed for emergency access? | Plan, easements and site rules |
| Services | Does infrastructure serve one dwelling or several? | Services plans, inspection and scheme advice |
Do not confuse exclusive use with ownership. In Queensland, the government explains that exclusive-use areas remain common property; the governing by-law can allocate use and maintenance responsibilities. Other jurisdictions handle these arrangements under their own laws.
Turn the concept into an approval schedule
List each component rather than submitting “internal and external renovation”. A kitchen refit, wall opening, roof window, courtyard paving, fence replacement, air conditioner and solar array have different impacts and may need different decisions. For each one, record the property affected, scheme decision-maker, government pathway, professional evidence and future maintenance responsibility.
For more detail on this part of the project, see Expanding an Existing Solar Array During Renovation: Capacity and Approval.
Use the apartment approval decision tree for the shared principles of cosmetic, regulated and common-property work, but apply townhouse-specific title and site conditions. Do not assume a process written for an apartment tower addresses a private yard or shared roof correctly.
Protect party walls and fire separation
Investigate before any opening or penetration
A wall between townhouses may carry load, resist fire, control sound, separate titles and contain services. Cutting an opening, recess, doorway, beam pocket or service route can affect both dwellings even if work is accessed from one side. Wall-mounted cabinetry or a television may also create vibration or penetrate a required assembly.
Obtain building records and professional assessment before altering the wall. Structural and fire-safety advice may be needed, along with scheme and building approvals. Do not use a stud detector or neighbour’s floor plan as authority to cut. The structural renovation guide explains the investigation sequence for load-bearing work.
Keep fire-rated junctions continuous at roof, floor and external walls. New downlights, ducts, pipes and cables may need tested protection. If a hidden condition differs from the documentation, stop and redesign rather than concealing a compromised junction.
Resolve roof responsibility before adding equipment
Townhouse roofs may be individual lot property, common property or divided in a less intuitive way. The body corporate may maintain the roof even where it covers one lot, or the owner may have obligations under the plan and rules. Confirm responsibility for the covering, structure, gutters, downpipes, flashings and penetrations separately.
Solar panels, skylights, antennas, exhausts and air-conditioning pipes can change waterproofing, wind loading, appearance and future maintenance access. The application should address fixing locations, penetrations, drainage, warranties, isolation, removal for roof repairs and responsibility for damage. Do not allow an installer to proceed based only on the owner’s signature if scheme consent is required.
Keep façades and streetscape coherent
Painting brick, changing cladding, replacing windows, adding screens, moving the front door or enclosing a porch can affect a controlled external appearance. A private-looking front elevation may still be common property or subject to architectural rules. Planning or heritage controls can apply independently.
Submit elevations, colours, samples and details of junctions. Explain how the work maintains weatherproofing and access to shared components. For material and proportion decisions, consult the house façade renovation guide, then confirm what the scheme and council will permit at this property.
Plan courtyards from the title downward
Before paving, decking or planting, establish whether the courtyard is part of the lot or exclusive-use common property. Check stormwater paths, underground services, termite inspection zones, finished levels, building vents and waterproofing. Raising soil or paving against walls can create moisture and inspection problems.
Queensland’s body-corporate guidance says owners need approval to improve common property and may become responsible for maintaining the improvement, depending on the applicable scheme module and decision. That example demonstrates why even a small patio can require a documented proposal.
For a location-specific example, see Renovating an Apartment on the Gold Coast: Body Corporate Approvals and Practical Limits.
Show existing and proposed levels, drainage, materials, edge details and access. Avoid diverting runoff to neighbours or common areas. For decks, pergolas, retaining walls, pools or substantial structures, check planning and building requirements as well as scheme consent.
Check fences, gates and trees before changing them
A fence can be a lot boundary, a common-property asset, an exclusive-use improvement or an external dividing fence subject to additional law. A gate may affect security, emergency access, sightlines and a scheme’s visual standard. Determine ownership and obtain neighbour or scheme involvement where legally required.
Trees and established gardens may be controlled by the scheme, council vegetation rules or an approved landscape plan. Roots can affect shared pipes and paving, while removal can alter privacy and shade for several lots. Submit arborist advice where risk or protected vegetation is involved; do not promise removal until all approvals are known.
Preserve driveway and access functions
Do not place bins, storage, planters, gates, charging equipment or building materials where they narrow shared vehicle access, block sightlines or impede emergency routes. A driveway that appears to serve one townhouse may carry an easement or provide access to services and neighbouring lots.
If changing paving or levels, coordinate drainage and service covers. Heavy deliveries, skips and cranes need approved positions and load considerations. Record existing cracks and edges before work, protect common surfaces and agree how damage will be assessed.
Coordinate air conditioning, solar and charging
External equipment raises appearance, noise, vibration, drainage, electrical capacity and common-property questions. For an air-conditioning condenser, show location, screening, clearances, condensate route, pipework, isolation and predicted effect on neighbours. Do not discharge condensate across paths or onto another lot.
For solar, clarify roof rights, metering, electrical routes, structural fixing, waterproofing and removal during roof maintenance. Electric-vehicle charging may require assessment of switchboards, embedded networks, allocation of electricity costs, cabling through common property and fire or parking controls. Obtain licensed design and scheme approval rather than running an informal cable from the dwelling.
Manage wet areas and shared services
A ground-floor townhouse is not exempt from waterproofing and plumbing controls. Bathroom or laundry work can affect a common slab, party wall, shared waste, external drainage or neighbouring property. Confirm service routes before demolition and coordinate required shutdowns.
Prepare plans showing fixtures, wastes, penetrations, membrane extent, ventilation and access. Use licensed trades where required and keep certificates and concealed-work photographs. If the project includes substantial bathroom changes, the bathroom planning guide helps align layout, documentation and sequencing.
Control construction impact on the scheme
Provide neighbours and the manager with a realistic program. Follow work hours, parking, waste and common-area rules. Keep footpaths, driveways and fire access open. Dust, slurry and landscaping waste should be contained; common drains are not disposal points.
Verify contractor licences where relevant, insurance evidence and the party responsible for common-property protection. Include access restrictions, bonds, specialist reports and reinstatement in quote comparisons. A cheaper quote that omits those obligations is not directly comparable.
Plan temporary works and weather protection
Keep neighbouring property safe
Roof replacement, wall openings, excavation and courtyard drainage can expose more than the renovating lot. The construction plan should explain temporary weatherproofing, structural support designed by the relevant professional, dust and water containment, overnight security and emergency response. Do not allow a shared roof junction or party-wall cavity to remain open because the work is “inside” one townhouse.
Confirm who may access adjoining lots or common property and arrange permission before the day it is needed. Scaffolds, cranes, skips and temporary fencing can obstruct shared routes or sit on controlled land. Include licences, permits, traffic control and surface protection where applicable.
Coordinate drainage across lot boundaries
Map roof water, surface water, subsoil drainage and overland flow before adding paving, a room, planter or retaining edge. A small increase in courtyard level can send water towards a neighbour or cover a wall’s drainage detail. New roofs and gutters may overload or reroute shared infrastructure.
Show where water enters the legal point of discharge or approved system. Have capacity and levels assessed where the proposal materially changes runoff. Keep pits, inspection openings and downpipe connections accessible after planting and joinery are installed. A body-corporate approval does not remove the owner’s responsibility to avoid nuisance or property damage.
Review privacy, overlooking and overshadowing
Upper-level windows, decks, screens and additions can affect neighbouring courtyards more directly in townhouse developments than on detached sites. Check planning controls and scheme design rules, then model sightlines from standing and seated positions. A screen that solves overlooking may increase wind load, reduce daylight or change the approved façade.
Discuss impacts early, but do not substitute neighbour agreement for formal approval. Use drawings that show heights, setbacks and materials. For new rooms or enlarged openings, consider daylight, shading and privacy on both sides of the boundary.
Separate owner upgrades from scheme maintenance
If the roof, fence or drainage already needs repair, establish the scheme’s maintenance obligation before proposing an upgrade. Combining necessary common-property maintenance with an owner-funded improvement can be efficient, but the resolution should distinguish costs, design control, warranties and future responsibility.
Do not accept responsibility for an undefined system simply to obtain quick approval. Describe the exact improvement and interfaces. If the owner must remove solar panels for future roof work or maintain courtyard paving above shared drainage, record that obligation and budget for it.
Keep the project insurable and traceable
Notify the owner’s insurer and ask the body corporate how the building policy interacts with owner work. Obtain contractor insurance evidence and any statutory cover required in the jurisdiction. Insurance does not legalise unapproved work, and a scheme’s building policy may not cover owner-installed finishes, temporary works or damage excluded by its terms.
Keep dated photographs before access, during concealed stages and after reinstatement. Record common-property condition, service routes and approved penetrations. This evidence helps distinguish an existing defect from construction damage and gives future repairers a safer map.
Record approvals and ongoing responsibility
Keep the formal resolution, conditions and approved drawings—not just the application. Obtain government permits, inspection records, trade certificates, engineering and waterproofing documents, product warranties and as-built changes. Send required copies to the body corporate and close out any bond or damage inspection.
Victoria’s official owners-corporation guidance says common property can include gardens, pathways, driveways and fences as identified on the plan, illustrating why scheme records matter even in low-density developments. Maintain a property file that explains who must repair each owner-installed item and who may access it.
Prepare for resale and future maintenance
Before sale, confirm that completed work matches approvals and that any owner maintenance obligations are disclosed through the documents required in the jurisdiction. Do not advertise a courtyard, enclosed room, extra bedroom or private parking alteration as approved without evidence.
Plan maintenance access from the beginning. A beautiful built-in bench should not cover a shared inspection point; solar panels should not make roof repair impossible; and planting should not obstruct fire or service access. These decisions protect the scheme as well as the individual townhouse.
Use a townhouse renovation sequence
- Obtain title, plan, rules, approvals history and scheme contacts.
- Map lot, common property, exclusive-use areas and services.
- Develop a component-by-component concept.
- Seek early scheme, council and specialist pathway advice.
- Complete engineering, fire, drainage and other technical design.
- Secure formal resolutions and government approvals.
- Price the approved scope with access and protection included.
- Build under the conditions and document variations.
- Submit completion records and retain maintenance obligations.
A townhouse renovation stays manageable when the title plan leads the design. Treat shared roofs, walls, land and services as project constraints from day one, then use written approvals and clear records to turn those constraints into a buildable scope.