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Town of Gawler Council Development Assessment Panel
ATTACHMENTS UNDER SEPARATE COVER
Monday 14 November 2016
Item Page No
5.4 Development Application: 490/329/2016 193Applicant: S Ruddack
Address: 63 Murray Street GAWLER
Nature of Development: Change in Use from 'Shop' and 'Hall' to 'Restaurant' and 'Three (3) Residential Flat Buildings' and associated Additions and Alterations to a Local Heritage Place
Attachment 1 -
Attachment 2 -
Attachment 3 -
Attachment 4 -
Application Plans and Documentation
Amended Plans
Acoustic Report
Clarification of Additional Information
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ATTACHMENT 1
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ATTACHMENT 2
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Page 1
63 Murray Street, Gawler
Noise Transfer Assessment
September 16
Chris Turnbull Principal Phone: +61 (0) 417 845 720 Email: [email protected] www.sonus.com.au
sonus.
ATTACHMENT 3
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63 Murray Street, Gawler Noise Transfer Assessment S4976C2 September 2016
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sonus.
INTRODUCTION
A noise transfer assessment has been made for the proposed fit-out and re-purposing of an existing
building located at 63 Murray Street, Gawler. The proposed development will comprise a restaurant
on the ground floor, and three residential apartments on the level above.
The assessment considers noise transmission from patron activity and background music in the
restaurant to the apartments above, and provides recommendations for acoustic treatment
measures required to ensure suitable acoustic amenity is provided in the apartments.
The assessment is based on:
A site inspection conducted in August 2016;
Council Development Plan Condition 11, which relates to noise transfer between the
restaurant and apartments above; and
Architectural layout and elevation drawings titled “63 Murray St Gawler - Proposed Plans”
and dated May 2016.
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63 Murray Street, Gawler Noise Transfer Assessment S4976C2 September 2016
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sonus.CRITERIA
Patron Noise
Criteria for the transmission of sound between attached dwellings are provided by the National
Construction Code 2016 Building Code of Australia (BCA).
Part F5 of the BCA, titled “Sound Transmission and Insulation”, sets out acoustic separation criteria
between sole occupancy units “to prevent illness or loss of amenity to the occupants”. For an
apartment in a Class 2 or 3 building, the BCA requires that:
A floor has an Rw + Ctr (airborne) not less than 50 if it separates:
o sole-occupancy units, or;
o a sole-occupancy unit from a plant room, lift shaft, stairway, public corridor, public
lobby or the like, or parts of a different classification.
Music Noise
Environment Protection (Noise) Policy
The Gawler council have requested the following be provided in order for the development to
achieve Planning Approval:
11. An acoustic report prepared by a suitably qualified sound engineer, demonstrating the proposed
restaurant use will not unreasonably impact the amenity of the residents of the proposed residential
flat buildings. The report should detail any acoustic treatments that may be required to be
implemented (if any) to ensure compliance with the EPA Noise Policy 2007
In contrast to the above, the Environment Protection (Noise) Policy 2007 (the Policy) specifically
excludes noise from licenced venues. For the assessment of noise from licenced venues, the
Environment Protection Authority (the EPA) recommends the EPA Guidelines with the title,
“Development proposal assessment for venues where music may be played” (the Guidelines) be
used.
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sonus.The Music Noise Guidelines
The Guidelines apply to new venues located in existing residential areas, as well as new noise
sensitive developments (e.g. dwellings) near existing entertainment venues. For the latter, and in
instances where noise sensitive receivers are located in the same building as the amplified music,
the Guidelines state the following:
“Noise from any music venue must not exceed 43 dB Leq in any one-third octave band
between and including 31.5Hz and 125 Hz when assessed inside a noise sensitive
development”. . .
The above criteria are proposed as an alternative to the Policy for the assessment of background
music noise in the restaurant.
It is noted that the above criteria result in more onerous requirements than the Policy and as a
result achievement of these criteria will also achieve the Policy. Therefore, with these criteria
achieved “the proposed restaurant use will not unreasonably impact the amenity of the residents of
the proposed residential flat buildings” and thereby achieve the intent of Council Condition 11.
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sonus.ASSESSMENT
Patron Noise
To achieve the BCA airborne noise attenuation requirement (Rw + Ctr ≥ 50), the following ceiling
construction is recommended to be installed in addition to the existing floor and ceiling, which
comprises 19mm tongue and groove floorboards, a 175mm wide air cavity, and 27mm thick lath
and plaster ceiling.
Install an additional ceiling which comprises:
two layers of 16mm thick fire-rated plasterboard resiliently mounted (using rubber isolation
clips) to the existing ceiling beams such that there is a minimum 160mm wide air cavity
between the layers; with
75mm thick glass or mineral fibre insulation (with minimum density of 14kg/m3) installed in
the cavity.
Music Noise
It is understood that entertainment is not proposed as part of the restaurant licence, however
background music is proposed. Background music is music at a level which does not require voices
to be raised to be heard, and is generally between 65 dB(A) and 75 dB(A).
Therefore, an assessment has been made to ensure the noise level inside the residential apartments,
resulting from the background music played in the restaurant, does not exceed the levels
recommended in the Guidelines in the relevant one-third octave frequency bands.
The assessment has been based on the following:
the ceiling construction recommended above to achieve the BCA requirements;
music noise spectrum as per measurements taken of amplified music of the type likely to be
played in the restaurant;
the use of ground-mounted speakers only;
the architectural layout and elevation drawings; and
an overall noise level of 75 dB(A) with spectrum as shown in Table 1.
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sonus.Table 1: Relevant one-third octave band levels of music played such that the overall level is 75 dB(A)
With the background music level in the restaurant as shown in Table 1, the maximum noise level in
the residential apartments above is predicted to be 18 dB(A), with spectrum as shown in Table 2.
Table 2: Relevant one-third octave bands of maximum predicted noise level in apartments
Based on the above, background music played in the restaurant will easily achieve the relevant
assessment criteria, being a maximum of 43 dB in any one-third octave band between 31.5 Hz and
125 Hz, provided the ceiling is constructed in accordance with the recommendations provided in
the “Patron Noise” section of the report.
The noise level in the apartments would also easily achieve the Policy criteria.
Frequency Band 31.5 Hz 40 Hz 50 Hz 63Hz 80 Hz 100 Hz 125 Hz
A-weighted Level (dB(A))
2 21 37 49 56 57 59
Linear Level (dB)
41 56 67 75 78 76 75
Frequency Band 31.5 Hz 40 Hz 50 Hz 63Hz 80 Hz 100 Hz 125 Hz
Linear Level (dB)
0 8 16 26 35 25 13
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63 Murray Street, Gawler Noise Transfer Assessment S4976C2 September 2016
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sonus.CONCLUSION
A noise transfer assessment has been made for the proposed fit-out and re-purposing of an existing
building located at 63 Murray Street, Gawler.
The assessment has considered noise transfer between the proposed restaurant on the ground floor,
and the residential apartments located above. Based on the assessment, recommendations have
been made to ensure the appropriate acoustic amenity is provided in the apartments, including the
following:
Construct a second ceiling below the existing ceiling of the restaurant, in accordance with
detail provided in the report;
Ensure music played in the restaurant is background music only; and
Ensure speakers are mounted from the ground only.
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Srdoc20160927GawlerPlanningDetails
In reply to the Council request (4th
July 2106) for additional information for a proposal to develop an
existing building at 63 Murray St Gawler into a restaurant with accommodation above.
• We acknowledge the Councils careful review of car parking and appreciate the positive
outcome for this project – it is significant to the viability of the proposal.
• The carpark will be upgraded to current best practice – eg hot mix bitumen sheeting.
In answer to the detailed questions
1. Hours of Operation
Dinner
Open 6 nights – Monday closed - 5.00pm – 10.00 pm
Lunch
Open 4 days – Monday, Tuesday, Saturday closed - 12.00am to2.00pm
2. Staff Numbers
Maximum number of staff on site at any time – 7 no.
3. Upper Level Use
The 3 studio apartments will be “Residential Flats”.
4. Courtyard
This area is primarily to provide access to toilets and a focus of light and greenery to draw customers
into the restaurant. The courtyard will be available for outdoor dining in fair weather and can
accommodate 12 patrons.
5. Aluminium Windows
This application does not include changing the aluminium windows for timber ones that would
match those removed by the previous owners
6. Site Plan
An amended site plan (4409/S2/A) is attached that deletes reference to footpath dining and amends
the parking layout
7. Proposed Elevations
Amended Elevations ( 4409/S3/A and 4409/S4/A) are attached showing proposed signage. Extent of
panting is covered in item 10 External Finishes.
8. Existing Elevations
ATTACHMENT 4
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New drawings (4409/S6/- and 4409/S7/-) are attached showing the existing building prior to this
proposal
9. Service yard
This area is proposed to be enclosed by a 2m high vertical, galvanised, corrugated iron, fence with
similar gates in natural unpainted finish. Posts and rails will be located inside the yard.
10. Schedule of External Finishes
West Elevation (to Murray St)
Colours and materials to remain as is – ie unpainted render, aluminium widows, shop front
and timber entry door suite, and Super Elliot lettering. Painted surfaces to be repainted as is
– ie Solver “Broken white” 8500. Cantilever awning to be repaired, as existing, for sign
writing on fascias.
North Elevation
Existing blue stone walling to remain as is with minimum repairs to mortar in matching
colour and texture (and strength/friability).
Existing render made good as required and painted similar to Solver “Powder Rose” 8510.
Courtyard walls in bagged “old red” bricks painted “Powder Rose”
Existing Aluminium windows to first floor and natural galvanised gutters to remain
unpainted .
Existing and new timber windows, doors, fascias, gates and cast iron “wheels” painted Solver
“Mid Earth” 8516.
Existing painted brickwork (“India Red”) to be painted to match approx Solver “Red
Ochre”8547.
New walls, roof, (rear entries, stair well, toilets) vertical, unpainted, natural galvanised iron,
gutters and rainwater goods similar finish.
Skylight to Unit 1– clear glass.
Services (down pipes etc) Solver “Warm Beige” 8516 on bluestone walls and “paint out” as
directed for other items
Service yard -refer above to item 9.
East Elevation
Similar to north elevation
South Elevation
Similar to north elevation
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11. Acoustic Report
A report from SONUS (acoustic engineers – Chris Turnbull Principal) has been prepared which shows
that a fire rated ceiling (required under Building Rules) suspended 160 below existing on resilient
mounts and with 75 rockwool batts will provide satisfactory sound separation between restaurant
and living accommodation.
12. Stormwater Management
A preliminary study has been undertaken by Epic Projects – civil and structural engineers (Joe Rossi,
Principal). Site levels have been taken and calculations done to enable a proposal to be made. Full
details will be provided for Building Rules approval.
The carpark will be paved as noted previously and drained to a grated sump in the NW
corner. The lane way will be paved similarly with a central spoon drain all falling to Murray
Street. The sump will drain via a new below surface drain into the rear of the existing Council
trench grate at “back of footpath” on Murray St (and hence to Council storm water in
Murray Street.
The south half of the existing building roof and all of the new work will drain into the carpark
sump. The north half of the existing building roof will drain into the spoon drain. The
footpath canopy will drain, as is, into the trench grate.
We hope this answer the councils queries satisfactorily .
The following documents are attached to this response
A architectural drawings (A3 size originals) – 7 number
B SONUS acoustic report
C EPIC drawing relating to storm water disposal
D marked up architectural drawing with site levels taken recently
Saxon Rudduck, Registered Architect, 7 North Street, Norwood, SA, 5067
0438 850 148 [email protected]
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1
Jessica Lewig
From: Saxon Rudduck < >Sent: Friday, 14 October 2016 11:01 AMTo: Jessica LewigCc: Walter Ventura; Nadia Ng; NaveenSubject: Re: 63 Murray Street - DA490/329/2016
Follow Up Flag: Follow upFlag Status: Completed
Dear Jessica 63 Murray St, Gawler in answer to your queries of yesterday (1) lunch hours are 1200 hrs to 1400 hrs (Noon to 2 pm) (4) as noted on my drawing 4409/S2 the outdoor dining area in the courtyard is in addition to the inside areas. For your information the owners have had much experience in restaurant operations (KwikStix Parafield and FastaPasta Gawler are two local examples) and have found over many years that outdoor dining is a fair weather alternative to indoor dining and that it does not increase customer numbers. Please note the inside total is 84 and not the 48 in your note. (7) Signage dimensions are limited by the existing fascia of the Murray St footpath canopy. Approx this signage will be 350 H x 1800 L on the fascia that is approx 450 H x 3200 (North and South) and 7600 (West) L. (9) the fence will be as noted in our response of 27 Sept unpainted, corrugated, galvanised iron ( for your information "galv" is identifiable by the larger crystal pattern of the zinc coating to the steel substrate approx 4-5 mm"diam" compared to zincalume coated steel the crystals or which are much smaller approx 1 mm "diam". Galvanised iron rapidly weathers to a light grey while zincalume, as you noted, stays reflective and takes many years to dull off. I hope this answers your questions and look forward to proceeding with this project cheers Saxon Rudduck Registered Architect On Thu, Oct 13, 2016 at 4:46 PM, Jessica Lewig <[email protected]> wrote:
Hi Saxon
As per our phone conversation earlier today, could you please clarify the following points from your previous correspondence:
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2
(1) With regards to the lunch opening hours, please amend to 12pm (noon) -2pm, currently says 12am (midnight) -2pm
(4) Outdoor dining – are the 12 patrons in the courtyard incorporated within the total number of 48 patrons, or in addition to the 48?
(7) Please provide dimensions of the proposed signage
(9) Please confirm the material for the proposed fence. Please note that zincalume will not be supported due to its highly reflective nature.
If you have any further queries, please do not hesitate to contact me on 8522 9279. I will be out of the office tomorrow and Monday, but will be back on Tuesday morning.
Kind regards
Jessica Lewig | Development Assessment Planner
Town of Gawler | PO Box 130 Gawler SA 5118
Ph (08) 8522 9279 | Fax (08) 8522 9292
Email: [email protected]
Web: www.gawler.sa.gov.au
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