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[2020] QCAT 373
plaintiff. Application granted in part: orders made amending respondent's name, requiring respondent to trim the row of Lilly Pilly (syzygium) trees on Lot 4 SP142273 to 2.5 metres above respondent's ground...
Applicants owned a house that was shaded by 3–5m high Lilly Pilly trees on the neighbour's land, which reduced sunlight to doors and windows by about 80% and made the house colder. QCAT (on the papers because the neighbour did not engage) accepted the assessor's factual measurements but not his conclusion that the shade was not a significant interference. The Tribunal found the shading was a 'severe' obstruction and amounted to substantial, ongoing and unreasonable interference under the Neighbourhood Disputes Act. The Tribunal ordered the neighbour to trim and maintain the trees at 2.5 metres height annually by a qualified arborist, at the neighbour's cost, and granted reasonable access for that work after notice.
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The Applicants, Colin and Averine Muller, own and occupy a lot in Hamilton, Queensland adjacent to the Respondent, Felice Del Vecchio, who owns the lot on which a row of about 15 Lilly Pilly (syzygium) trees grew. The Applicants filed an application with QCAT on 16 November 2018 asserting that the hedgerow, then approximately 3–5 metres high, cast shade across their dwelling, obstructed sunlight to glass doors and windows, made the house considerably colder in winter and increased their heating costs [1], [5], [6], [23]–[26]. The Applicants sought orders that the Respondent prune or remove branches, permit entry to the Respondent's land to carry out the works or obtain quotes, and pay the costs [2], [4].
1 cited instrument linked from this judgment.
The Respondent did not comply with a direction to attend a compulsory conference and provided no material in response; the matter was therefore determined on the papers under s 32 of the QCAT Act [3]. The Applicants filed photographs, survey and title material, a letter to the Respondent requesting pruning dated 2 October 2018, and an affidavit of service showing personal service. QCAT obtained a Tree Assessment Report (TAR) from Mr Benjamin Inman dated 30 July 2019, which found the trees to be syzygium, between 3 and 5 metres high, rising at least 2.5 metres above ground, and restricting sunlight by approximately 80% (projected 85% with growth in 12 months); but Mr Inman nevertheless concluded the trees had not caused and were not likely to cause within 12 months substantial, ongoing and unreasonable interference [4], [26]. The Tribunal accepted the TAR’s factual findings but was not bound by the assessor’s evaluative conclusion [26]–[28]. Adjudicator Gaffney found the 80% obstruction to be a 'severe' obstruction of sunlight and that the obstruction amounted to substantial, ongoing and unreasonable interference, and made orders requiring the Respondent to trim and maintain the trees to 2.5 metres in height yearly by a suitably qualified and insured arborist, at the Respondent's cost, with specified access provisions [33], [36]–[38], [57]–[59].
Statutory framework: The Tribunal's power was exercised under ss 61 and 66 of the Neighbourhood Disputes (Dividing Fences and Trees) Act 2011 (Qld) ('the Act'). Section 66 empowers QCAT to make orders to remedy substantial, ongoing and unreasonable interference with a neighbour's use and enjoyment of land (s 66(2)(b)(ii)); for obstruction of sunlight s 66(3) provides additional conditions: the tree must rise at least 2.5m and the obstruction must be 'severe' (s 66(3)(a)–(b)(i)). Parties must additionally satisfy service and procedural requirements (ss 63, 65) which were met here [6]–[16], [20]–[21].
Factual findings: Photographs supplied by the Applicants showed multiple full-length glass doors and some upper-level windows in shade across several months (April, June, August, October), and the satellite image displayed complete shadow along the house's length [23]–[25]. Mr Inman's TAR corroborated the tree species and height and quantified sunlight restriction at c.80% with 5% growth anticipated in 12 months [26], [23]. The Tribunal accepted these factual elements [27].
Legal evaluation not bound to expert: The Tribunal treated the ultimate question of 'substantial, ongoing and unreasonable interference' as a mixed question of fact and law and as involving evaluative judgments on 'unreasonableness'. It therefore held it was not bound by Mr Inman's conclusory assessment that interference was not substantial and ongoing, although it accepted his factual measurements [26]–[28].
Meaning of 'severe': The Tribunal applied the ordinary meaning of 'severe' and concluded that an 80% obstruction of sunlight could be 'harshly extreme' and causing 'discomfort', and thus fall within s 66(3)(b)(i) [33]. That conclusion was reinforced by the Applicants' evidence the shade made the house 'much' colder and caused increased heating costs [25], [36].
'Substantial, ongoing and unreasonable': The Tribunal followed guidance from Neverfail (and related authorities) that the three words are ordinary terms which together require interference that is considerable in importance, continuing, and beyond the limits of acceptability or fairness; relevant factors include nature and extent of harm, abnormal sensitivity, steps taken to minimise, and the extent of damage [34]–[36]. Applying those factors, the Tribunal found: the harm was extensive (80% restriction to living areas across months), applicants were not abnormally sensitive, the tree-keeper had taken no steps, and the applicants had themselves trimmed the hedge twice yearly for about 10 years (at significant cost) but that work had become a safety risk due to height [36], [50]. The Tribunal therefore found the interference met the statutory standard [37]–[38].
Remedy and proportionality: In choosing remedial orders the Tribunal prioritised safety (s 71) and the general matters in s 73 (location, amenity, privacy, ecosystem contribution, pruning impact, etc.) and s 75 (other matters where unreasonable interference alleged). It concluded tree removal was unnecessary (s 72) and that proportionate orders were trimming to 2.5m annually by a suitably qualified and insured arborist, cost borne by the Respondent, and reasonable access to the Applicants' land on seven days' written notice [41]–[46], [57].
Before: The Act prescribes the statutory thresholds and framework for addressing neighbour tree disputes: tree height, 'severe' obstruction, and 'substantial, ongoing and unreasonable' interference are statutory gates. Prior QCAT/QCATA authorities (e.g., Laing, Durrington, Neverfail) had applied dictionary and ordinary meanings and developed multifactorial considerations for 'unreasonable' interference.
Contribution of this decision: Muller reinforces that measured obstruction levels (here ~80%) may meet the statutory 'severe' threshold and that actual consequential damage (colder home, increased heating costs) can be persuasive evidence of 'substantial' harm. It emphasises the Tribunal's role in evaluative judgments: the Tribunal is not bound by an assessor's conclusory view on unreasonableness; it may accept factual measurements yet reach a different legal evaluation. The case therefore confirms two practical points for practitioners: (1) robust factual measurement of obstruction (percentages, photographs over time) can be determinative of 'severe' and 'substantial' findings; (2) expert reports must disclose reasoning for evaluative conclusions because the Tribunal will make its own assessment on mixed questions [26]–[28], [33], [36]–[38].
"I consider that an obstruction of sunlight by 80% may be considered 'harshly extreme', causing 'discomfort'..." [33].
"I do not consider myself bound to accept Mr Inman's conclusion." [28].
"The evidence ... indicates the interference is both substantial and ongoing, ... and in fact will increase if action is not taken." [37].
Orders summary: trimming to 2.5m, yearly maintenance by insured arborist, respondent to pay costs, applicants to give reasonable access after 7 days' notice [57].
Practitioners should assemble time-stamped photographic evidence targeting windows/doors, obtain a TAR that quantifies light reduction, and document direct consequences (e.g., heating bills, statements about temperature) to satisfy the 'substantial' and 'unreasonable' limbs.
As this decision is a QCAT adjudicator's ruling (2020), it follows and applies reasoning from QCATA and QCAT authorities (Laing, Durrington, Neverfail) rather than establishing novel appellate precedent. The key points likely to be followed in later QCAT determinations are: (a) numeric quantification of obstruction (e.g., 80%) is persuasive for 'severe' and (b) tribunals will exercise independent evaluative judgment on 'unreasonable interference' irrespective of an expert assessor’s conclusory opinion. Future appellate review (if any) would test whether the Tribunal's evaluative conclusions were reasonable in the Wednesbury sense, but Muller provides a practical template for tribunals to accept factual measures and then reach their own legal conclusions.
Practical takeaway: where trees cause measurable, significant loss of sunlight with real consequences, QCAT will enforce proportionate pruning and maintenance orders under s 66. Build the evidentiary record (photographs over seasons, quantified light loss, documented costs and mitigation efforts) and prepare to address the statutory balancing matters in ss 71–75.
This matter was heard and determined on the papers pursuant to s 32 of the Queensland Civil and Administrative Tribunal Act 2009 (Qld)
Due to [the trees'] height our house is in shade during the winter months and as a result, our house has been much colder, necessitating increased heating costs....[6]
(a) that the Respondent carry out work on the trees to remove or prune branches of the trees;
(b) that a person can enter the Respondent's land to carry out an order;
(c) that a person can enter the Respondent's land to obtain a quote to carry out an order; and
(d) that the Respondent pay the costs of carrying out the above orders.
(i) the Applicants' statements and a diagram which comprise the Applicants' responses to questions in the Form 51 Application;
(ii) a copy of a letter from Mr Muller to the Respondent, dated 2 October 2018;
(iii) colour photographs of the trees and affected areas;
(iv) a copy of title searches for Lot 2 and Lot 4 on Survey Plan ('SP') 142273;
(v) a copy of the survey plan of Lots 1 - 4 in SP 142273, on which the Applicants have marked the location of the trees on Lot 4; and
(vi) an affidavit of service executed by Mr Muller on 26 November 2018 deposing to personal service of the Application on the Respondent ('the affidavit of service'); and
(b) a copy of a 'QCAT NDR Tree Assessment Report' prepared by Mr Benjamin Inman, tree assessor, and dated 30 July 2019 ('the TAR').
The Tribunal's power to make an order with respect to the trees
Conditions to be satisfied before orders may be made
(a) the trees which are the subject of the Application must each be a 'tree' as defined in section 45 of the Act;[9]
(b) there must also be 'land affected by a tree' as defined in section 46;[10] and
(c) the Applicants must each be a 'neighbour' of the Respondent within the meaning of section 49 of the Act, whose land is 'affected by a tree'.
(a) Mr Inman has confirmed that the trees are of the species syzygium or Lilly Pilly[12] and are each a 'tree' for the purpose of section 45 of the Act;[13]
(b) the Applicants assert that the trees have caused substantial, ongoing and unreasonable interference with their use and enjoyment of their land (I will use the shorthand term 'interference' where appropriate).[14] The marked survey plan of SP 142273 indicates that the trees are situated on the Respondent's land. The Respondent has not disputed this, and I accept the Applicants' evidence in this respect. The marked survey plan also shows the Applicants' land adjoins the Respondent's land, and that the trees are located close to that common boundary. Accordingly, subject to a determination (discussed below) that the trees have caused, are causing or are likely within the next 12 months to cause interference, the Applicants' land is 'affected by' the trees within the meaning of section 46 of the Act; and
(c) as the 'land affected' is a lot recorded on the freehold land register, and the Applicants are the registered owners of that land,[15] they are each a 'neighbour' within the meaning of section 49 of the Act.
(1) Division 4 states the matters for QCAT's consideration in deciding an application for an order under this section.
(2) QCAT may make the orders it considers appropriate in relation to a tree affecting the neighbour's land -
(a) ...
(b) to remedy, restrain or prevent -
(i) ...
(ii) substantial, ongoing and unreasonable interference with the use and enjoyment of the neighbour's land.
(3) However, subsection (2)(b)(ii) applies to interference that is an obstruction of sunlight or a view only if -
(a) the tree rises at least 2.5m above the ground; and
(b) the obstruction is -
(i) severe obstruction of sunlight to a window or roof of a dwelling on the neighbour's land; or
(ii) severe obstruction of a view, from a dwelling on the neighbour's land, that existed when the neighbour took possession of the land.
(4) Despite the Property Law Act 1974, section 178, QCAT may make an order under subsections (2)(b) and (3) that is intended to result in the access of light to land.
(5) Without limiting the powers of QCAT to make orders under subsection (2), an order may do any of the following -
(a) require or allow the tree-keeper or neighbour to carry out work on the tree on a particular occasion or on an ongoing basis;
Examples -
(b) require that a survey be undertaken to clarify the tree's location in relation to the common boundary;
(c) require a person to apply for a consent or other authorisation from a government authority in relation to the tree;
(d) authorise a person to enter the tree-keeper's land to carry out an order under this section, including entering land to obtain a quotation for carrying out an order;
(e) require the tree-keeper or neighbour to pay the costs associated with carrying out an order under this section;
(f) require the tree-keeper to pay compensation to a neighbour for damage to the neighbour's land or property on the neighbour's land;
(g) require a report by an appropriately qualified arborist.
(6) In this section -
window includes a glass door, window forming part of a door, skylight or other similar thing.
(a) the trees must be at least 2.5m above the ground;
(b) the trees must cause 'severe obstruction of sunlight to a window';
(c) the trees must cause interference (because the order must be to 'remedy, restrain or prevent' the interference).
What the evidence reveals about the impact of the trees
(b) there is an obstructed window or roof forming part of the Applicants' dwelling in that sunlight is reduced as the run passes north over the property and light does not reach the ground level of the Applicants' property;[22]
(c) sunlight is restricted by the trees by approximately 80%, and in the next 12 months with 5% tree growth will be restricted by 85%;[23]
(d) the trees were in an obstructing position at the time the relevant roof and windows were installed and have grown to be an obstruction since (although no source is cited for these findings);[24] and
(e) despite these findings, Mr Inman indicates that the trees have not caused, are causing or likely to cause within the next 12 months substantial, ongoing and unreasonable interference with the Applicants' use and enjoyment of the land.[25]
The term 'severe obstruction' is not defined in either the Act or the Explanatory Notes to the Neighbourhood Disputes Resolution Bill 2010. The Macquarie Dictionary defines 'severe' in the following terms: 'harshly extreme'; 'causing discomfort or distress by extreme character or conditions' and 'hard to endure'.[28]
The meaning of 'substantial, ongoing and unreasonable interference with the use and enjoyment of the neighbour's land'
(a) the words 'substantial', 'ongoing' and 'unreasonable' are not defined in the Act and therefore carry their ordinary meaning:
(i) 'substantial' means 'of considerable importance, size or worth';
(ii) 'ongoing' means 'continuing; still in progress'; and
(iii) 'unreasonable' means 'beyond the limits of acceptability or fairness';
(b) all three requirements must be present for interference to be established; and
(c) interference, to satisfy section 66(2)(b)(ii) must therefore be considerable and beyond the limits of acceptability.[32]
(a) what is the nature and extent of the harm or interference said to be caused by the tree?
(b) is the neighbour abnormally sensitive to the harm or interference said to be caused by the tree?
(c) have all reasonable steps been taken by the tree keeper to minimise the harm or interference said to be caused by the tree?
(d) what is the type and extent of damage claimed to have been suffered by the neighbour?
(a) the nature of the interference is the obstruction of sunlight between April and October to glass doors on the lower level of the house on one side, and to windows in the upper level of the house on that side in June, and that the trees have caused the sunlight to be restricted by 80%;
(b) there is no indication that the Applicants are abnormally sensitive to the interference;
(c) no steps at all have been taken by the Respondent, as the tree keeper, to minimise the interference. By contrast, to date the Applicants have carried out work on the trees twice annually for 10 years at their own expense;[34] and
(d) the type and extent of damage suffered by the Applicants is that the house is made 'much' colder in the winter, necessitating increased heating costs.[35]
(1) QCAT must consider the following matters -
(a) the location of the tree in relation to the boundary of the land on which the tree is situated and any premises, fence or other structure affected by the location of the tree;
(b) whether carrying out work on the tree would require any consent or other authorisation under another Act and, if so, whether the consent or authorisation has been obtained;
(c) whether the tree has any historical, cultural, social or scientific value;
(d) any contribution the tree makes to the local ecosystem and to biodiversity;
(e) any contribution the tree makes to the natural landscape and the scenic value of the land or locality;
(f) any contribution the tree makes to public amenity;
(g) any contribution the tree makes to the amenity of the land on which it is situated, including its contribution relating to privacy, landscaping, garden design or protection from sun, wind, noise, odour or smoke;
(h) any impact the tree has on soil stability, the water table or other natural features of the land or locality;
(i) any risks associated with the tree in the event of a cyclone or other extreme weather event;
(j) the likely impact on the tree of pruning it, including the impact on the tree of maintaining it at a particular height, width or shape;
(k) the type of tree, including whether the species of tree is a pest or weed (however described) or falls under a similar category under an Act or a local law.
(2) For subsection (1)(c), the circumstances where a tree has historical, cultural, social or scientific value include where the tree -
(a) is, or is part of, Aboriginal cultural heritage under the Aboriginal Cultural Heritage Act 2003; or
(b) is, or is part of, Torres Strait Islander cultural heritage under the Torres Strait Islander Cultural Heritage Act ; or
(a) as to the matters in section 73(1)(a), the location of the trees is close to the boundary fence and retaining wall[38] and therefore creates an additional physical barrier between the adjoining properties which affords privacy for the Applicants and the Respondent.[39] The trees are approximately 2.5 metres from the Applicants' dwelling;[40] however, Mr Inman indicates in his risk assessment that likelihood and consequence of failure would be minimal - both factors were given a score of zero, and Mr Inman reached the overall conclusion that no action was required;[41]
(b) as to the matter in section 73(1)(b), there is no evidence that carrying out work on the trees would require any consent or authorisation under legislation other than the Act;
(c) as to the matter in section 73(1)(c), the trees have a social benefit in that they afford privacy to the parties; and Mr Inman has described the trees' significance as 'desirable,'[42] but it is not clear in what sense that term is used;
(d) as to the matter in section 73(1)(d), there is no expert evidence that the trees make any particular contribution to the local ecosystem or biodiversity;
(e) as to the matters in section 73(1)(e), (f) and (g), the photographs indicate the trees do not form a significant part of the streetscape or scenic value of the land or locality, and the evidence indicates the trees appear to provide amenity only to the Respondent and Applicants in the form of privacy. It is however implicit in the Application that the Applicants value the restoration of sunlight to their property above any privacy that might be afforded by the trees. No evidence has been provided by the Respondent as to the amenity which the trees provide for his land;
(f) as to the matters in sections 73(1)(h), there is no evidence that the trees have any impact on soil stability, the water table or other natural features of the land or locality;
(g) as to the matters in section 73(1)(i), there is no evidence that the trees pose a material risk in the event of a cyclone or weather event - Mr Inman has given a score of zero with respect to a risk assessment of the likelihood and consequence of failure;[43]
(h) as to the matters in section 73(1)(j), Mr Inman has not pointed to any deleterious effect to the trees of pruning them to a height of approximately 2.5 metres; and
(i) as to the matters in section 73(1)(k), there is no evidence that the trees are a species of pest or weed, or fall under a similar category under an Act or local law.
If the neighbour alleges the tree has caused, or is causing, substantial, ongoing and unreasonable interference with the use and enjoyment of the neighbour's land, QCAT may consider -
(a) anything other than the tree that has contributed, or is contributing, to the interference; and
(b) any steps taken by the tree-keeper or the neighbour to prevent or minimise the interference; and
(c) the size of the neighbour's land; and
(d) whether the tree existed before the neighbour acquired the land; and
(e) for interference that is an obstruction of sunlight or a view - any contribution the tree makes to the protection or revegetation of a waterway or foreshore.
2 metres above ground level,[48] and caused minimal shade to the property.[49]
(i) that to provide sunlight to the Applicants' lower living areas would require the hedge [comprised of the trees] to be reduced so that it is either 2.5 metres in height from the Respondent's ground level or reduced so that the trees are approximately 1 metre above the current fence and step up with the boundary fence and retaining wall;[50]
(ii) that the trees would have to be maintained as a hedge once a year in the late winter or early spring in order to provide the desired sunlight to the Applicants;[51]
(iii) that such work should be conducted by a suitably qualified and insured arborist;[52] and
(iv) that reducing the hedge would resolve the Applicants' sunlight issues but would remove 50% of the Respondent's privacy;[53]
(b) that the Respondent as a tree-keeper is responsible for the proper care and maintenance of the trees under section 41(1) of the Act;
(c) that the Respondent is responsible for ensuring that the trees do not cause interference under section 52(2)(c) of the Act; and
(d) that access to trim the trees would be required from both sides of the boundary fence.[54]
(a) that the Respondent cause the row of Lilly Pilly trees or syzygium located on the Respondent's land (Lot 4 on SP 142273) to be trimmed so that it is 2.5 metres in height from the Respondent's ground level ('the maintenance work');
(b) that the Respondent cause the maintenance work to be carried out once a year in the late winter or early spring by a suitably qualified and insured arborist;
(c) that the Respondent pay the costs of the maintenance work;
(d) that the Applicants provide such reasonable access to their land (but not any dwelling on the land) to the Respondent or his agents, at reasonable times, as may be required to allow the maintenance work to be carried out as ordered above, or to allow a quotation to be provided for the maintenance work, following seven (7) days' written notice from the Respondent to the Applicants.
[1] Title search dated 9 January 2019 for Lot 2 on Survey Plan 142273.
[2] The Application refers to the Respondent as 'Felix Del Vecchio', although the title search indicates that the Respondent's first given name is 'Felice'.
[3] Title search dated 9 January 2019 for Lot 4 on Survey Plan 142273, marked Plan of Lots 1 - 4 provided with the Application filed on 16 November 2018 ('the Application').
[4] Spelt 'lillipillies' in the Application.
[5] Application, response to Question 9.
[6] Application, response to Question 23.
[7] Application, response to Question 39.
[9] See also the references to 'tree' in sections 61 and 66 of the Act.
[10] See also section 61.
[11] Note that the 'yes' box in Question 8 was ticked in the Application but it is evident from the comments in response to that question and the balance of the Application that the dispute is not related to overhanging branches.
[12] TAR, p. 5, 'Visual Tree Assessment'.
[14] Application, response to Question 23.
[15] Refer title search for Lot 2 of SP 142273.
[16] Refer title search for Lot 4 of SP 142273.
[17] Application, response to Question 5.
[18] Section 65(b) of the Act.
[19] Refer to the photographs taken on 3 October 2018.
[20] TAR pp. 5 and 8. This is consistent with the Applicant's assertion in their Application (response to Question 9).
[26] Refer Collector of Customs v Pozzolanic Enterprises Pty Ltd [1993] FCA 456; (1993) 43 FCR 280, 287-288.
[27] Laing v Kokkinos (No 2) [2013] QCATA 247.
[29] Durrington v Cassar [2014] QCAT 609.
[31] Neverfail Pty Ltd as Trustee for the Harris Siksna Family Trust v Radford [2016] QCATA 203 ('Neverfail'), [81]-[86].
[33] Ibid [85], citing Marsh v Baxter [2015] WASCA 169.
[34] Application, response to Question 27.
[35] Application, response to Question 23.
[37] TAR, p.8; Application, response to Question 40.
[38] Refer to the photographs provided with the Application.
[42] TAR, p. 5, 'Visual Tree Assessment'.
[45] Application, response to Question 40.
[46] Application, response to Question 8, response to Question 27, response to Question 40.
[47] Application, response to Question 28.
[48] Application, response to Question 29.
[49] Application, response to Question 40.
Muller & Anor
Del Vecchio [2020] QCAT 373
Collector of Customs v Pozzolanic Enterprises Pty Ltd [1993] FCA 456; (1993) 43 FCR 280
Durrington v Cassar [2014] QCAT 609
Laing v Kokkinos (No 2) [2013] QCATA 247
Marsh v Baxter [2015] WASCA 169
Neverfail Pty Ltd as Trustee for the Harris Siksna Family Trust v Radford [2016] QCATA 203
(1993) 43 FCR 280
Application granted in part: orders made amending respondent's name, requiring respondent to trim the row of Lilly Pilly (syzygium) trees on Lot 4 SP142273 to 2.5 metres above respondent's ground level and maintain that height annually in late winter/early spring by a suitably qualified and insured arborist; respondent to pay costs of maintenance; applicants to provide reasonable access (not to dwellings) upon 7 days' notice [59].
(c) is, or is situated in, a Queensland heritage place under the Queensland Heritage Act 1992.
(3) For this Act, no financial value or carbon trading value may be placed on a tree.