• Tony Liu

Alternative HIRB for Mixedhousing Suburban Zone

Hi All,

Hope you have a great day!! (日本語の文章は下段にあります↓)

(以下有中文的翻译↓)

Under the Proposed Auckland Unitary Plan (PAUP), there is new rules for Height In Relation to Boundary (HIRB).

What are the HIRB heights?

As a building height and location have large effects on neighbor buildings (e.g. blocking sunlight) the height and location in terms of its distance from the boundary have to be restricted (see the sketch below). These restrictions are caled HIRB.


Model

(Side View Of Residential Building)

HIRB Under PAUP

Basically the below shows the HIRB for Mixedhousing Suburban zone, which is the most common type of residential zoning across Auckland.

If you want to build a new simple two story home in a site in this zone, you have to keep the new building 4-5m apart from the boundary.


hirb-1

(Side View Of Residential Building)

However, there is the alternative HIRB which applies to development that is within 20m of the site frontage.


hirb-2

(Side View Of Residential Building)

This means that you can have a larger new home and more design options in the front part of the site than the rear.

Please let me know if you are thinking to build a multiple new homes on your own site and Japan Homes will give you the best plan.

皆さん、こんにちは。

Proposed Auckland Unitary Plan (PAUP) の下では、斜線制限(Height In Relation to Boundary :HIRB)が改正されます。

斜線制限(HIRB)とは?

住宅建物の高さは、近隣の住宅や住人に日当たりや、眺めなどの点で悪影響を与えないように、敷地境界線からの距離との関係で規制されています。

基本的に建物が高くなればなるほど、敷地境界から距離を離さなければなりません。


Model

(建物を横から見た図)

PAUP施工後の斜線制限

Aucklandで最も一般的な住宅ゾーン(用途地域)であるMixedhousing Suburbanでは、基本的に以下の斜線制限が適用されます。

もし、単純な総二階建新築を建てる場合は、かなり(4-5m)敷地境界から建物を離さなければなりません。


hirb-1