The site others walked past
27 Coull Street sits within the Stonequarry Creek flood planning area — the kind of constraint that scares most buyers off a site entirely. We saw it differently: commission the right specialists, design to the constraint, and unlock a townhouse project in one of the Macarthur region's most character-rich towns.
Designing to the constraint
A flood feasibility assessment by Resolute Stormwater tested the site against both Wollondilly's current DCP and the stricter draft Stonequarry Creek controls — and confirmed the site is developable under both. Habitable floors sit above the flood planning level, parking above the 1% AEP flood level, flood-compatible materials throughout, and driveway access positioned on the high side of Coull Street so residents always have flood-safe evacuation toward Picton Avenue.
The masterstroke is what happens to the high-hazard zone along the creek: rather than fighting it, the design by Council Approval Group and Marcus Watt gives that land to a heritage garden — turning the site's biggest constraint into its signature amenity.
The layout
The current WattNott Design site plan arranges the dwellings across the 1,525 m² lot with the flood-safe frontage to Coull Street:
Where it's at
Detail survey complete, flood feasibility complete, concept design progressing with landscape design by MyYard. The site today:
