> For the complete documentation index, see [llms.txt](https://btehkmu.gitbook.io/btehkmu-zhi-nan-guide-book/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://btehkmu.gitbook.io/btehkmu-zhi-nan-guide-book/guide-book-en/getting-started/building-basics/3d-modeling/building-measurement.md).

# Building Measurement

Since it's not possible to carry a tape measure to the site for measurement, especially in a place like Hong Kong with many tall buildings, a few tape measures are insufficient.

<figure><img src="https://2481641337-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiCsqZvQt6N8bYG3CEYIb%2Fuploads%2FYiXFhd9zyt7LFA9rZNCF%2Fimage.png?alt=media&amp;token=f5bde770-9e49-43d5-b702-2e3801f115dc" alt=""><figcaption><p>Google Earth Pro screen</p></figcaption></figure>

***

From my BTE experience, I usually measure \[ground elevation], \[parapet elevation on the rooftop], \[rooftop floor elevation], \[elevations of various objects on the rooftop], and when needed I also use Google Earth Pro's ruler to measure the height of one floor or specific detail heights.

&#x20;Continuing with Hin Shek Yuen as an example:

<figure><img src="https://2481641337-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiCsqZvQt6N8bYG3CEYIb%2Fuploads%2FBsxyODJrb7Qy2IGWmDZf%2Fimage.png?alt=media&amp;token=dc7859d9-618c-499a-b6fe-b04f48d7d699" alt="" width="563"><figcaption><p>Place the mouse cursor on the ground below the building, elevation: 18 m</p></figcaption></figure>

<figure><img src="https://2481641337-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiCsqZvQt6N8bYG3CEYIb%2Fuploads%2Fc8EMSaDca9e2sdVXcxF2%2Fimage.png?alt=media&amp;token=d435b5e3-74e5-42e2-a138-e009d11f821b" alt="" width="563"><figcaption><p>Place the mouse cursor on the top of the roof wall, elevation: 29 m</p></figcaption></figure>

<figure><img src="https://2481641337-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiCsqZvQt6N8bYG3CEYIb%2Fuploads%2FhFkcIHmlQchQ1u4q6yDY%2Fimage.png?alt=media&amp;token=25a6e746-99a1-4cf2-86b9-8c6373969ef9" alt=""><figcaption><p>Wall height</p></figcaption></figure>

#### Quick summary:

* Ground elevation = 18 m
* Parapet elevation on the rooftop = 29 m
* Rooftop floor elevation = 28 m
* Total height from ground to rooftop parapet = 11 m
* Elevations of various rooftop objects: stair house = 2 m high, rooftop canopy/tent = 2 m high
* Wall: 1.86 m ≈ 2 m&#x20;

{% hint style="info" %}
Building parapets are usually 0.5 to 0.8 m, can be treated as 1 m
{% endhint %}

Although the measured result is 11 m, players can actually be a few meters higher (roughly less than a 2 m difference) as long as it's not too extreme.