Double Bay at a glance
| Topic | Details |
|---|---|
| Council | Woollahra Municipal Council |
| Postcode | 2028 |
| Typical homes | Apartments from interwar flats to modern blocks; large houses on the slopes |
| Heritage | Heritage items and nearby conservation areas; check Woollahra LEP 2014 maps |
| Watch for | Flood risk in the low-lying village; strata approvals and building rules; steep driveways and harbour-front sites |
Is Double Bay flood-prone?
Parts of it are. Woollahra Council's Double Bay Catchment Flood Study and the floodplain risk management plan that followed it cover a catchment of about 2.8 square kilometres, taking in Double Bay and parts of Edgecliff, Woollahra and Bellevue Hill, all draining to the harbour. Water from the slopes collects in the low-lying village, so ground-floor shops, lobbies and basement car parks are the most exposed.
A flood assessment for one Bay Street site, based on council's mapping, reported flood depths of about 250 to 450 mm along New South Head Road, Bay Street and Brooklyn Lane in a 1-in-100-year event. If your building is in the village, ask about basement car park flooding, lobby levels and drainage before you renovate ground-floor units.
Renovating a Double Bay apartment
Most Double Bay jobs happen inside strata buildings, and the building's rules can matter as much as council's.
- Bathroom work that affects waterproofing needs a special resolution of the owners corporation.
- Many by-laws require acoustic underlay under timber or stone floors.
- Buildings often set work hours, lift protection and loading-dock bookings through a building manager.
- Flood or water damage from the unit above needs a leak investigation before repairs.
Give trades a copy of your approval conditions and by-laws when you describe the job, so quotes allow for them. Our water damage restoration guide explains the order of work after a leak.
Houses on the slopes and the harbour
Double Bay's houses sit on steep blocks rising from the village and the bay. Sandstone is often close to the surface, so excavating for basements, pools or garages is slow and needs geotechnical advice. Steep driveways and narrow streets make deliveries harder. Harbour-front properties face foreshore rules and extra controls on work near the water.
Retaining walls, drainage and waterproofing below ground are common jobs. Mature trees on these slopes are protected by Woollahra Council's tree controls, so check before you plan to remove one for a pool, driveway or extension. Some larger houses are heritage items or sit beside conservation areas, so check the Woollahra LEP 2014 maps before changing a street front. See the Eastern Suburbs hub for nearby areas.
Popular jobs in Double Bay
Bathroom renovations
Plan a bathroom around layout, water management, ventilation and finishes before comparing prices.
Get quotesKitchen renovations
Resolve appliance locations, useful storage and circulation before selecting cabinet finishes.
Get quotesBathroom waterproofing
Define the wet-area scope and investigate water entry before choosing a repair.
Get quotesCustom joinery
Create storage from measured needs and the way the room is used.
Get quotesWater damage restoration
Separate immediate safety, damage assessment and drying from the reinstatement of rooms.
Get quotesTimber floor installation
Choose a timber flooring system around the substrate, moisture and how the room is used.
Get quotesLocal service guides
Common questions
Does flooding affect renovations in Double Bay?
It can, if you're in the low-lying village. Woollahra Council's flood study maps where water collects. Council may set floor levels for new ground-floor rooms or basements and ask for flood-resistant materials. Ask Woollahra Council for flood information about your address before you design ground-level or basement work.
What should I ask strata before renovating my Double Bay unit?
Ask what approval your work needs, whether that's a special or ordinary resolution or none, which by-laws apply to work hours, floors and noise, and how lifts and loading are booked. Ask too whether the building has had waterproofing or façade problems. Share the answers with trades so quotes match.
Can I excavate under my Double Bay house?
Sometimes, but expect a development application, a geotechnical report and an engineer's design. Sandstone, groundwater near the harbour and neighbouring houses all affect the method. Excavation close to boundaries needs careful support and monitoring. Have the approvals and design in hand before asking trades for firm quotes.