Mr Meehan's company, Waterfall Park Developments Ltd, was granted resource consent by the Queenstown Lakes District Council last June to construct the road to access the site from Lake Hayes-Arrowtown Road and, in March this year, consent to construct a 380-room hotel and wellness centre on the land.
The road consent was appealed by neighbours Peter, Jillian and Simon Beadle to the Environment Court and the appeal was joined by the Arrowtown Landscape Protection Society Inc.
Both appellants asked the court to reverse the commissioners' decision.
The society also then appealed the hotel consent.
However, that was withdrawn on May 30, following mediation between the parties.
Days earlier, on May 24, Judge John Hassan disallowed the road appeal, added two conditions and said the consent would be confirmed.
One of the new conditions was to provide traffic-calming and "speed treatment" to ensure a 50kmh speed limit was observed on the 870m-long road.
The other addressed construction noise and hours of work - limited to between 7.30am and 6pm Monday to Saturday.
No work was to be done on Sundays or public holidays.
On completion, the two-way road would connect with Arrowtown-Lake Hayes Rd at a new T-intersection, splayed to provide a dedicated left-in slip lane and right-turn bay.
A new 5m bridge would be constructed across Mill Creek and a concrete pedestrian and cycle path would also be included.
In his decision Judge Hassan said the primary ground for the road appeal was the "significant" adverse landscape effects.
However, he found the traffic design was suitable and appropriate and the road design - including construction methods, mitigation and monitoring measures - had been "reliably informed of ecological matters".
Related conditions were also appropriate.
Other benefits included planned enhancement works - for example, riparian planting and stock exclusion along a 1.3km stretch of Mill Creek - which would help preserve the natural character of the creek and Lake Hayes, help protect indigenous fauna and enhance the "intrinsic values of ecosystems", he said.
"We find on the evidence ... that the proposed road's visual amenity effects are tolerably acceptable, albeit that some residents will experience some moderate detraction until mitigation planting matures to fulfil its intended purpose.
"We infer that reasonable residents would still appreciate their residences as enjoying a highly attractive outlook."
Costs were reserved.
In a statement, Mr Meehan said construction of the road would begin "immediately".
