Green Design Sydney
Green Design Sydney
Farshid Hosseini reviewing construction drawings on an active building site
Boarding Houses · Co-living · Class 3 · NSW

Boarding House, Co-living and Class 3 Design & Approvals in Sydney.

For developers, operators, builders and owners planning boarding houses, co-living housing, Class 3 conversions or a change of use. We work out what the site can carry and which pathway applies, then design, document and coordinate it through approval.

25+ years of building design NSW Registered Design Practitioner DEP0000825 BDAA Chartered Member
On Site
Start here

What can this site carry, and under which pathway?

Send the address and what you are planning. Fred reviews it himself and tells you which land use, pathway and constraints are likely to decide the project before anyone draws it.

We normally reply within one business day.

or call 0426 967 745

We use these details to answer your enquiry and nothing else. See the privacy notice.

02 — Feasibility and Planning Pathway

Boarding house or co-living is a planning decision before it is a design one.

Under the NSW Housing SEPP they are different land uses. A boarding house must be affordable housing managed by a registered community housing provider in perpetuity. Co-living housing carries no such requirement but has its own controls on room sizes, communal space, parking and management. The zone, the operating model and the finance usually point to one of them.

We check permissibility, the controls that will set the yield, parking and access, heritage and character constraints, and anything already on the title or in the building, then give you a written view on what is realistic.

The land use decides the controls. The controls decide the yield. The yield decides whether the project is worth designing.
03 — DA and CDC Pathway

Usually a DA. Occasionally something faster for part of the work.

Most new boarding house and co-living proposals require a development application. Where part of the work can use complying development or is exempt, such as some internal alterations to an existing approved building, we use it. We set out the pathway, the reports council will ask for and the order they are needed in, before you commit to a full design fee. See Approvals & Advisory for how we run approvals generally.

04 — BCA, Fire Safety and Accessibility

Class 3 brings requirements a house never has to meet.

Fire separation between rooms, egress, fire safety measures, accessible rooms and paths of travel, sanitary facilities, sound insulation and services. We coordinate the BCA consultant, fire engineer and access consultant early, so the design is built around their advice rather than altered to suit it after council has seen it.

Town PlannerBCA ConsultantFire EngineerFire Safety MeasuresAccess ConsultantAcoustic ConsultantTraffic & ParkingWaste ManagementStormwaterStructural EngineerCertifier
05 — Change of Use and Existing Buildings

Conversions are where the expensive surprises are.

Turning a house, a commercial building or older accommodation into a Class 3 use changes its classification. The existing structure may not meet the new fire, egress, accessibility or sound requirements, and any unapproved work already in it has to be regularised. We assess the existing building against the proposed use before you buy or sign, and tell you where the real cost sits. More on change of use and unapproved work and Building Information Certificates.

06 — Registered Practitioner Documentation

From DA drawings to a construction certificate the builder can price.

Since 3 July 2023, new Class 3 buildings in NSW fall under the Design and Building Practitioners Act. Regulated designs have to be prepared and declared by registered practitioners and lodged on the NSW Planning Portal. Farshid Hosseini is a NSW Registered Design Practitioner — Building Design (DEP0000825), and prepares and declares regulated designs where the work falls within that registration. We coordinate the other practitioners’ declarations so the package reaches the certifier complete. Builders and architects needing documentation only can go straight to Class 2 and Class 3 documentation.

07 — How We Run It

The same order every time, for a reason.

01

Feasibility

Land use, permissibility, controls and a realistic yield.

02

Pathway

DA or CDC, the reports required and the order they come in.

03

Concept

Layouts tested against BCA, fire and access advice early.

04

DA Package

Drawings and a coordinated consultant set for lodgement.

05

Assessment

Council requests answered directly, through to determination.

06

CC Documentation

Regulated designs, declarations and a package the builder can price.

Farshid Hosseini, Founder and Principal Designer of Green Design Sydney
Who You Deal With

Farshid Hosseini

Founder | Principal Designer | Property Advisor
  • 25+ Years of Building Design Experience
  • NSW Registered Design Practitioner — Building Design (DEP0000825)
  • BDAA Chartered Member
  • Class 2 and Class 3 project experience

Fred works on complex approvals, change of use and compliance matters across Sydney and NSW, and leads each project personally. See the case studies for how difficult approvals have been resolved.

Frequently Asked

Questions developers and operators ask before they commit.

Is a boarding house the same as co-living housing?
No. Under the NSW Housing SEPP they are separate land uses. A boarding house must be used as affordable housing and managed by a registered community housing provider in perpetuity. Co-living housing has no affordability or community-housing-provider requirement, but has its own built-form controls and must have a manager. Which one fits depends on the zone, the operating model and the finance behind it, so we settle that first.
Can a boarding house or co-living project be approved as a CDC?
Generally not. Most new boarding house and co-living proposals need a development application. Some associated work, such as certain internal alterations to an existing approved building, may have a complying development or exempt pathway. We confirm the pathway for your site before design starts rather than assume one.
Why does Class 3 matter for design documentation?
Boarding houses, hostels and similar residential accommodation are Class 3 under the National Construction Code. Since 3 July 2023 new Class 3 buildings in NSW fall under the Design and Building Practitioners Act, so regulated designs must be prepared and declared by registered practitioners and lodged on the NSW Planning Portal before work proceeds. See Class 2 and Class 3 documentation.
Can an existing house or commercial building be converted?
Sometimes. A conversion usually changes the building's classification, which brings fire separation, egress, accessibility and sanitary requirements the building may not meet today. Unapproved work already in the building also has to be dealt with. We assess the existing building against the new use before you commit to buying, leasing or designing.
Which consultants does a boarding house or co-living DA usually need?
It varies by site and council, but commonly a town planner, BCA consultant, access consultant, fire engineer or fire safety consultant, traffic and parking, acoustic, waste, stormwater and structural engineers, and a certifier. We define the team once the scope and classification are clear, and coordinate them under one point of contact.
Can you tell me whether a site will be approved?
No one can honestly promise that. What we can do is tell you, before you spend on a full design, whether the use is permissible, which controls are likely to decide the yield, where the significant cost and risk sit, and what we would need to resolve to give the proposal its best chance.
Send it through

Send the site. Get a straight view before you spend on design.

Address and plan are enough to start. We will tell you what is realistic, what needs checking and what it is likely to involve. Fees are fixed for a defined scope — see how we charge.

We normally reply within one business day.

or call 0426 967 745

We use these details to answer your enquiry and nothing else. See the privacy notice.