Why Inner West projects are mostly renovations, not new builds

Most Inner West lots already have an existing dwelling — typically a Victorian, Edwardian, or Federation terrace or a post-war cottage — and most of those are inside a heritage conservation area or are individually listed. Demolition is rarely approved; sympathetic retention plus ground-floor rear extension and upper-floor addition is the standard pathway. Practically: budget for retain-and-extend, not knock-and-rebuild, and price the unknown carefully (existing structure, services, asbestos, lead paint, termite history all add cost during demolition and rectification).

Inner West Council — heritage, FSR, and dual-occupancy controls

Inner West Council operates the Inner West LEP across the former Marrickville, Leichhardt, and Ashfield council areas (each retaining DCP variation). Heritage conservation areas cover a high proportion of the LGA, especially Balmain, Annandale, Rozelle, Glebe, and Newtown. FSR is generally tight (0.5–0.75 in many residential zones), height controls are 8.5m typical, and rear setbacks are strictly applied. Dual occupancy is permitted in some R1/R2 zones subject to minimum lot size; second dwelling pathways (granny flats under SEPP Housing) are common.

Existing-building unknowns — the real Inner West cost driver

On every Inner West renovation, the largest source of cost variance is the existing building's hidden condition: termite damage, sandstone footing failures, salt-rising damp on party walls, asbestos in eaves and floor tiles, lead paint, undocumented past renovations not built to code. A 20–30% provisional sum line in the contract for existing-building rectification is normal; less than that and the variation calls during construction become a fight. The calculator's renovation-aware insights account for this — but the only real protection is a thorough pre-purchase building inspection and an experienced builder who has worked on similar terrace stock before.

Party walls, neighbour notice, and tight-access programming

Most Inner West terraces share party walls with neighbouring properties on both sides. Any work that affects a party wall (extension above, structural alteration, services penetration) typically needs neighbour engagement and may need an easement. Site access for materials, waste, and machinery is constrained — rear lanes if you're lucky, narrow front frontages if not — and street parking restrictions limit truck and concrete pump scheduling. These factors compress the build program and push trade rates up. Allow a longer construction window than a comparable flat-suburban brief.