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Dr Griffin was commenting in his submission on day two of a Dunedin resource consent hearing.
Peninsula Holdings Trust came to the first day of the hearing on Tuesday, with a proposal to cut number of houses in the area from eight to four.
Landowner Steven Clearwater said he recently signed a conditional sale agreement for some of the land involved to a nearby farmer.
The trust originally applied to the Dunedin City Council to subdivide rural zoned land at 78 Cape Saunders Rd, with a capital value of almost $1.9 million.
The initial plan was to create 10 new sites of between 2ha and 194ha on the land between Hoopers Inlet and Papanui Inlet, and on the northern slopes of Mt Charles.
Many submitters yesterday objected to the development proposals. They said the proposals did not fit planning provisions and would set a damaging precedent for the future.
Dr Griffin said it was known ''night sky tourism has enormous potential'' to attract extra tourists to Dunedin, particularly during the traditional winter low season, when the long nights were ''better for astronomical observation''.
The peninsula was already recognised as ''an area of outstanding natural beauty'' and every day its flora and fauna attracted many tourists whose spending was ''important to the local economy''.
Dunedin was one of the ''very few cities where a world-class view of the night sky is accessible to the general public within a 20 minute derive of the city centre''.
Developing houses on the lots, with associated light pollution, would have ''significantly negative impact'' on views from popular night sky observing viewpoints, and once development occurred ''it will not be possible to turn back the clock''.
The applicant earlier submitted the proposed four houses would be integrated into the environment, and careful siting of building platforms and development controls would avoid significant adverse landscape and visual effects.
In an earlier submission, Papanui Inlet Rd resident Graeme Granger objected to the proposed development and said it was ''all too easy in these sensitive landscape areas, to destroy the very values that make them unique''.
Another submitter, Hamish Forrester, said ''I'm a Nimby [Not In My Back Yard]'', but added that concerned local people following a Nimby spirit had long played a positive role by standing up against ''inappropriate'' development, including an earlier proposal, decades ago, to fill in and reclaim Hoopers Inlet.
Halving the number of lots for proposed development had simply changed the development proposal from one that was ''ridiculously inappropriate'' to one that was ''highly inappropriate'', Mr Forrester said.