Recommendation: true-north surveying

One topic that makes architects flinch a bit is true north.

Anyone who has computed the north-side setback (oblique line restriction) in low-rise residential zones probably knows roughly how strict the required precision for true north is.

It's pretty tight.

For those who want to determine true north precisely, there's a method called true-north surveying. https://www.info-shop.info/group/passivehouse-qing-bao-jiao-huangurupu/discussion/4fedf3ae-02b4-4e8c-a8d0-5410ae6fa9fd