Feasibility, DA or CDC & construction coordination
Second Storey Addition Sydney
Adding an upper floor can preserve valuable backyard space, but it needs an informed strategy for height, streetscape, privacy, overshadowing, stairs, roof form and the capacity of the existing house.
For Sydney homeowners who need more bedrooms or living space without rebuilding or consuming the backyard.
Send your existing house for review →Test the existing house and controls
We review planning limits, survey information and early structural implications before detailed design.
Resolve stairs and circulation
The stair location is planned to protect useful ground-floor space and create a natural connection between levels.
Respond to neighbours and streetscape
Privacy, shadow, views, setbacks and roof form are addressed early to reduce avoidable approval risk.
Coordinate approval and construction
BASIX, engineering and other required information are brought together with the architectural drawings.
Typical scope
One coordinated path from feasibility to construction.
- Property and planning review
- Existing-condition and proposed drawings
- DA or eligible CDC documentation
- BASIX and structural coordination
- Construction-stage design support
Relevant experience
Real projects behind the service.
St Ives alterations and additions
A real alterations-and-additions project used to demonstrate how existing conditions and approval constraints inform the design.
FAQ
Common questions
Can a second storey be approved by CDC?+
Sometimes, if the property and complete proposal satisfy every applicable standard. Otherwise DA may be required or strategically preferable.
Will my house need structural strengthening?+
A structural engineer must assess this. Early coordination helps the architectural design respond to likely strengthening work.
Free initial project consultation
Start with clarity before committing to the next step.
Speak directly with an experienced building designer about your project, likely approval pathway and next steps. Following an initial review, a complimentary site consultation may be available for suitable projects.
- 01Send the essentials
Provide the property address or suburb, project type, photos, and any available survey or existing plans.
- 02Free initial call
A short call to discuss your objectives, key constraints and likely approval pathway.
- 03Site consultation where suitable
Suitable, clearly defined projects within our service area may be offered a complimentary 30–45 minute site consultation.
Please note: A complimentary site consultation is preliminary and subject to project type, location and availability. It does not include a measured survey, existing-condition drawings, design work, written advice or a detailed feasibility report. Any formal measuring or documentation will be quoted before work begins.