Rear and side setbacks for granny flat

The request was successful.

Dear Blacktown City Council,

We are planning to build a house and granny flat by knock down the existing house in Blacktown. May I request following information. I tried to go through the BDCP 2015 however couldn't find answers to my queries (most probably due to lack of my knowledge)

Scenario: 556 sqm lot (15m x 36m). Building a doubnle story at the front and 60 sqm granny flat at the back. There are other properties at back and sides of this block. The block is sloping to back around 1m

1. Granny flat setbacks from side and rear fence
2. POS for house and granny flat
3. Can these 2 dwellings share one rain water tank through charged stormwater pipes and then discharge pipe from rain water tank to street by gravity. There is no compliant space for OSD pit. Assuming that neighbours might not be willing for easement.
4. Minimum driverway gradient required as per council to push the rainwater/stormwater away to street
Thanks in advance.

Yours faithfully,

KD

Blacktown Council, Blacktown City Council

1 Attachment

Thank you for your email.  We have forwarded it to the appropriate
section(s) within Council. In line with our service standards for
correspondence, you will receive a reply within 10 working days. If your
email was a request for information under the Government Information
(Public Access) Act 2009, you will receive a reply within 20 working
days. 

 

If the matter is urgent, you can contact our Customer service team Monday
to Friday by phoning 02 5300 6000 between 8.30 am and 4.30 pm or by
visiting us at the Civic Centre on Flushcombe Road, Blacktown between 8.30
am and 4.30 pm.

 

 

[1]cid:image001.png@01D7E2DB.7C1ADF10

 

 

This email and any files transmitted with it may be confidential and
contain privileged information. It is intended solely for the use of the
addressee only. If you are not the intended recipient you must not use,
disclose or copy this communication. If you have received this email in
error please delete it and notify the sender. This footnote also confirms
that this email message has been swept for the presence of computer
viruses.

References

Visible links

Lewis Warner, Blacktown City Council

Hi KD,

From what you've described it sounds like the lot in question may not be suitable for a granny flat development. I can give more accurate comments if you provide me with the proposed development address.

In response to your individual queries;

1. Side and rear setbacks are both 900mm under DCP part C
2. Granny flat requires 80sqm of POS, primary dwelling requires 80sqm if less than 4 bed, 100sqm if 4 or more bed.
3. No, if developing a primary and secondary dwelling (granny flat) then all roof and surface water must be gravity fed to either the street or the easement. Charged systems are not accepted for this type of development
4. Driveway requirements are available on the residential vehicle crossing form available at the following link https://www.blacktown.nsw.gov.au/files/a...

Kind regards,

Lewis Warner
Building Surveyor
9839 5949

[email address]
PO Box 63 Blacktown NSW 2148
http://www.blacktown.nsw.gov.au/
-----Original Message-----
From: KD <[FOI #11157 email]>
Sent: Thursday, 22 February 2024 10:50 PM
To: Blacktown Council <[email address]>
Subject: Government Information (Public Access) request - Rear and side setbacks for granny flat

Dear Blacktown City Council,

We are planning to build a house and granny flat by knock down the existing house in Blacktown. May I request following information. I tried to go through the BDCP 2015 however couldn't find answers to my queries (most probably due to lack of my knowledge)

Scenario: 556 sqm lot (15m x 36m). Building a doubnle story at the front and 60 sqm granny flat at the back. There are other properties at back and sides of this block. The block is sloping to back around 1m

1. Granny flat setbacks from side and rear fence 2. POS for house and granny flat 3. Can these 2 dwellings share one rain water tank through charged stormwater pipes and then discharge pipe from rain water tank to street by gravity. There is no compliant space for OSD pit. Assuming that neighbours might not be willing for easement.
4. Minimum driverway gradient required as per council to push the rainwater/stormwater away to street Thanks in advance.

Yours faithfully,

KD

-------------------------------------------------------------------

Please use this email address for all replies to this request:
[FOI #11157 email]

Is [Blacktown City Council request email] the wrong address for Government Information (Public Access) requests to Blacktown City Council? If so, please contact us using this form:
https://www.righttoknow.org.au/change_re...

This request has been made by an individual using Right to Know. This message and any reply that you make will be published on the internet. More information on how Right to Know works can be found at:
https://www.righttoknow.org.au/help/offi...

Please note that in some cases publication of requests and responses will be delayed.

If you find this service useful as an FOI officer, please ask your web manager to link to us from your organisation's FOI page.

-------------------------------------------------------------------

This email and any files transmitted with it may be confidential and contain privileged information. It is intended solely for the use of the addressee only. If you are not the intended recipient you must not use, disclose or copy this communication. If you have received this email in error please delete it and notify the sender. This footnote also confirms that this email message has been swept for the presence of computer viruses.

hide quoted sections