Development by suburb · Wollondilly Shire Council

What's being built in Tahmoor.

Development applications and complying development certificates lodged in Tahmoor through the NSW Planning Portal (Wollondilly Shire Council). Updated 29 October at 3:18 am.

330applications lodged in the last 12 months
39being assessed right now
288approved or decided in the last 12 months
69fast-track approvals (CDCs) in the last 12 months

Big projects in Tahmoor

Apartment blocks, new buildings of four storeys or more and multi-million-dollar projects lodged in the last three years.

  • Change to an approval: childcare centre11 Tahmoor Road Tahmoor
    Being assessedDA · lodged 23 Sept 2026 · $1.7m
  • Townhouses or terraces, 8 homes, 8 lots101 Remembrance Driveway Tahmoor
    Being assessedDA · lodged 15 Sept 2026 · $3.0m
  • Renovation68 Castlereagh Street Tahmoor
    Being assessedDA · lodged 4 Sept 2026 · $1.0m
  • Childcare centre110 Byron Road Tahmoor
    Being assessedDA · lodged 27 Aug 2026 · $3.8m
  • Shops with apartments above, 130 apartments, 4 storeys163-173 Remembrance Driveway Tahmoor
    Being assessedDA · lodged 29 July 2026 · $108m
  • Childcare centre50 Remembrance Driveway Tahmoor
    Being assessedDA · lodged 4 Nov 2025 · $2.7m
  • Childcare centre17 Waterson Circuit Tahmoor
    DecidedDA · lodged 28 May 2026 · $8.9m
  • Childcare centre17 Park Street Tahmoor
    DecidedDA · lodged 7 May 2026 · $1.8m
  • Change to an approval: childcare centre11 Tahmoor Road Tahmoor
    WithdrawnDA · lodged 13 Feb 2026 · $1.7m
  • Childcare centre49 York Street Tahmoor
    DecidedDA · lodged 17 Dec 2025 · $2.2m

Latest applications

  • Pool or deck20 Wallace Street Tahmoor
    Being assessedDA · lodged 27 Oct 2026 · $141k
  • Pool or deck280 Rockford Road Tahmoor
    Being assessedDA · lodged 21 Oct 2026 · $44k
  • Granny flat, 2 homes16 Sawmill Road Tahmoor
    Being assessedDA · lodged 21 Oct 2026 · $463k
  • Change to an approval: new semi-detached home18 Red Gum Road Tahmoor
    ApprovedCDC · lodged 20 Oct 2026 · $560k
  • Granny flat, 2 storeys72 Tahmoor Road Tahmoor
    ApprovedCDC · lodged 18 Oct 2026 · $705k
  • Granny flat, 2 homes16 French Street Tahmoor
    Being assessedDA · lodged 14 Oct 2026 · $574k
  • New house5 Basil Street Tahmoor
    DecidedDA · lodged 13 Oct 2026 · $440k
  • New house14 Sawmill Road Tahmoor
    DecidedDA · lodged 12 Oct 2026 · $628k
  • Renovation92 York Street Tahmoor
    Being assessedDA · lodged 9 Oct 2026 · $17k
  • Work on a house10 Suffolk Place Tahmoor
    Being assessedCDC · lodged 8 Oct 2026 · $229k

Buying in Tahmoor?

See every application within 250 metres of the home, closest first, with what each one means for you, plus the planning rules, flood and other checks.

Questions

How many development applications are there in Tahmoor?

330 development applications (DAs) and complying development certificates (CDCs) were lodged in Tahmoor in the last 12 months: 261 DAs and 69 CDCs. 39 lodged in the last two years are still being assessed.

How do I check DAs near a property in Tahmoor?

Enter the address in WIBI. The report lists every DA and CDC within 250 metres, closest first, plus big projects up to 800 metres away, with what each one means for you. You can also search the NSW Planning Portal or Wollondilly Shire Council's DA tracker.

What's the difference between a DA and a CDC?

A development application (DA) is assessed by council, and neighbours are usually notified and can comment. A complying development certificate (CDC) is a fast-track approval for work that meets set standards; it can be issued by a private certifier and neighbours can't object, though they're told before work starts.

Source: NSW Planning Portal open data (OnlineDA and OnlineCDC). Councils sometimes record decisions late, so check important applications with Wollondilly Shire Council. General information only.