Council owned buildings

Find out about Council-owned buildings on the seismic register and what the ratings mean.


Council-owned register

Our building seismic register lists council-owned buildings, what their seismic rating is, and a link to the latest assessment report.

Council-owned buildings range from modern structures to old community halls. They include grandstands and pavilions, purpose-built community hubs, and new facilities like the Events Centre and refurbished Town Hall.

Safety ratings

We use two ratings to decide how safe a building is: %NBS and Seismic Grade.

%NBS

The New Building Standard is a measure of how a building compares to the seismic strength of a new building constructed to the current building code.

%NBS rating What it means
Less than 34% Fulfils one of the requirements for the building to be assessed as earthquake prone in terms of the Building Act.
34% or greater The building should be regarded as being outside the requirements of the earthquake-prone building provisions of the Building Act.
67% or greater The assessment indicates that the building should not be a significant earthquake risk, based on the New Zealand Society for Earthquake Engineering (NZSEE) recommendations.

Seismic grade

The seismic grade relates to the relative risk description for other factors like life safety and compares this to a new building.

Percentage of New Building Standard (%NBS) Alpha rating Approx. risk relative to a new building Life-safety risk description
>100 A+ Less than or comparable to Low risk
80-100 A 1-2 times greater Low risk
67-79 B 2-5 times greater Low to medium risk
34-66 C 5-10 times greater Medium risk
20 to <34 D 10-25 times greater High risk
<20 E 25 times greater Very high risk

Council-owned buildings seismic register

BuildingType* %NBS (seismic grade)Comments
Alicetown Community House (PDF 5.6 MB) ISA 55% (C) Unlikely to be earthquake prone
Animal Services:
19A Meachen St (PDF 1.1 MB)
21 Meachen St
(PDF 929.1 KB)
ISA 40% (C) Unlikely to be earthquake prone
Avalon Park Pavilion (PDF 11.3 MB) ISA 40% (C) Unlikely to be earthquake prone
Dowse Art Museum (PDF 7.3 MB) ISA Zone 1: 40% (C)
Zone 2: 50% (C)
Unlikely to be earthquake prone
Belmont Community Hall (PDF 3.3 MB) ISA 40% (C) Unlikely to be earthquake prone
Eastbourne Bus Barn (PDF 2.2 MB)   45-55% (C) Unlikely to be earthquake prone
Eastbourne Community Hall (PDF 3.2 MB) ISA 40% (C) Unlikely to be earthquake prone
Eastbourne Library (PDF 4.7 MB) ISA 50-60% (C) Unlikely to be earthquake prone
Eastbourne Summer Pool (PDF 2.8 MB)** ISA 60% (C) Facility building only. Unlikely to be earthquake prone
Epuni Community Hall (PDF 3.2 MB)   40% (C) Unlikely to be earthquake prone
Gibbes Watson Conservatory - 2 Myrtle St (PDF 1.2 MB) ISA 50% (C) Unlikely to be earthquake prone
Hardwick Smith Lounge (PDF 3.0 MB) ISA 70% (B) Unlikely to be earthquake prone
Huia Pool+Fitness (PDF 4.2 MB) ISA Building 1: 40% (C) Building 1 (original 1979 building): Unlikely to be earthquake prone
 91Building 2: >100% (A+)Building 2 (new 2015 building): new build
Hutt Recreation Ground Grandstand (PDF 2.8 MB) ISA 45% (C) Unlikely to be earthquake prone
Kelson Community House (PDF 2.6 MB) ISA 90% (A) Unlikely to be earthquake prone
Koraunui Stokes Valley Community Hub   100% New build, not required
Laings Road, Main Council Building   100% New build, not required
Little Café (PDF 2.7 MB) ISA 70% (B) Unlikely to be earthquake prone
Little Theatre (PDF 126.3KB)   40% (C) Unlikely to be earthquake prone
Lower Hutt Events Centre & Town Hall   100% New build, not required
Mary Crowther Park Toilets & Changing Rooms (PDF 677 KB) ISA 34% (C) Unlikely to be earthquake prone
Maungaraki Hall/Community Centre (PDF 3.1 MB) ISA 55% (C) Unlikely to be earthquake prone
McKenzie Baths Summer Pool (PDF 2.6 MB)** ISA 50% (C) Facility building only. Unlikely to be earthquake prone.
Memorial Park Toilets, Changing Rooms & Office (PDF 655 KB) ISA 80% (A) Unlikely to be earthquake prone
Minoh Friendship House (PDF 2.4 MB)   60% (C) Overall building - Unlikely to be earthquake prone Chimneys - potentially earthquake prone
Moera Community Hall (PDF 2.5 MB) ISA 45% (C) Unlikely to be earthquake prone
Moera Community House (PDF 2.3 MB) ISA 55% (C) Unlikely to be earthquake prone
Moera Library (PDF 4.2 MB) ISA 100% (A+) Unlikely to be earthquake prone
Naenae Bowls Centre   100% New build, not required
Naenae Library (PDF 3.7 MB) ISA 50% (C) Unlikely to be earthquake prone
Naenae Park Pavilion DSA 34% Work completed in 2019 to increase NBS to 34%.
NZRT18 - Emergency Response Centre, 105 Western Hutt Rd   100% New build, not required
Pavilion - WREMO Office (PDF 12.9 MB) ISA 100% (A) Unlikely to be earthquake prone
Petone Community House (PDF 4.7 MB) ISA 45% (C) Unlikely to be earthquake prone
Petone Library (PDF 4.7 MB) ISA 85-95% (A) Unlikely to be earthquake prone
Petone Recreation Ground grandstand (PDF 2.91 MB)    DSA20% (D) Earthquake prone

DSA Appendices A-D
DSA Appendices E-H
Petone Settlers Museum (PDF 5 MB) DSA 70% Unlikely to be earthquake prone
Petone Wharf  Earthquake prone
Engineers letter re Petone Wharf (PDF 118 KB)
Petone Wharf Pile Condition Survey - GK Shaw Ltd (PDF 12.3 MB)
Memorandum to Jo Miller re closure of Petone Wharf (PDF 533 KB)
Pomare-Taita Community House (PDF 3.1 MB) ISA 70% (B) Unlikely to be earthquake prone
Ricoh Sports Centre   100% New build, not required
Richard Prouse Toilets & Changing Rooms (PDF 691 KB) ISA 34% (C) Unlikely to be earthquake prone
Stokes Valley Pool+Fitness (PDF 9.1 MB) ISA 100% (A+) Unlikely to be earthquake prone
Te Whiti Park toilets & changing rooms   100% New build, not required
Treadwell Street Hall (PDF 5.7 MB) ISA 67% (B) Unlikely to be earthquake prone
Wainuiomata Community Centre (PDF 6 MB) includes Wainuiomata Memorial Hall ISA 95% (A) Unlikely to be earthquake prone
Wainuiomata Library (PDF 5.3 MB) ISA 100% (A) Unlikely to be earthquake prone
Wainuiomata Summer Pool (PDF 14.1MB)* ISA Building 1: 45% (C) Building 1 (male changing room) is unlikely to be earthquake prone.
  Building 2: 70% (B)Building 2 (entrance and meeting room) is unlikely to be earthquake prone.
  Building 3: 70% (B)Building 3 (female and accessible changing room) strengthening was completed in November 2020.
  Building 4: 35% (C)Building 4 (plant room) is Unlikely to be earthquake prone - staff and contractor access only.
Walter Nash Centre 1973 building (PDF 55.7 MB) DSA 34% (C) Work completed in 2021 to increase NBS to 34%
Walter Nash Centre 2015 building   100% New building opened in 2015
War Memorial Library (PDF 6.5 MB) DSA+GEO 40-45% (C) Unlikely to be earthquake prone
Williams Park Pavilion, Days Bay (PDF 4.3 MB) ISA 50% (C) Includes Williams Park Pavilion Café, Toilets, Depot Shed and Reserve House. Unlikely to be earthquake prone.
9-11 Myrtle St (PDF 1.2 MB) ISA 55% (C) Overall building - Unlikely to be earthquake prone Chimneys - potentially earthquake prone
30 Percy Cameron Street (PDF 4.1 MB) ISA 45% (C) Unlikely to be earthquake prone
33 Parkway, Parkway House (PDF 799.5 KB) ISA 55% (C) Unlikely to be earthquake prone
61 Taita Drive, Avalon (PDF 7.3 MB) ISA 70% (B) Unlikely to be earthquake prone

Cuba Street Overbridge

* Assessment types:

  • ISA: Initial Seismic Assessment
  • DSA: Detailed Seismic Assessment
  • GEO: Geotechnical Assessment

** Summer Pool, only open November-March