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Marlborough/Nelson/Tasman

204 Hardy Street, Nelson

The owners of this Nelson building took a staged approach to earthquake strengthening. This meant managing costs and keeping their tenant happy.

When Ben Van Dyke and Miranda Wood were notified by the Nelson City Council that their building at the heart of Nelson’s CBD was earthquake-prone, they had a costly decision to make. They had already spent more than $60,000 on structural work of the historic building, and ‘guesstimated’ that further strengthening would cost nearly $130,000. The engineer’s estimate was higher still.

A mid-century commercial building

The building at 204 Hardy Street is known by locals as Lambretta’s, after the popular restaurant that operates on the ground floor. Customers enjoy Nelson’s long hours of sunshine under awnings beside the impressive columns. The mid-century commercial building is built from reinforced concrete with a ‘glass curtain wall’ façade. It was completed in 1956 for the New Zealand Insurance Company (NZI), who chose this façade design for their corporate image. 

The building was assessed and rated earthquake prone

Early in 2017, engineers from AMK Limited carried out a detailed seismic assessment and found the strength of the two-story building to be 15% of the New Building Standard (NBS). The main areas of concern were the first floor columns and the parapets. These elements are the first to be addressed in a seismic upgrade scheme that will take the building to 70% NBS.

Heritage EQUIP funding has allowed Ben and Miranda to strengthen the building

Nelson City Council (NCC) sent a survey to all owners of Nelson heritage buildings, along with an application for Council funding to help with earthquake strengthening. Ben and Miranda had already been through a ‘bureaucratic obstacle course’ to strengthen the building in the past, so were hesitant to apply for funding.

The turning point came for the couple when Richard Frizzell from NCC connected them with Mike Frew from the Ministry for Culture and Heritage. NCC supported Ben and Miranda’s application for Heritage EQUIP funding. Miranda says Richard was tremendously helpful and made the EQUIP funding application seem less daunting. “I was pleasantly surprised by how helpful everyone has been. Everyone bent over backwards to assist us. Mike was very encouraging and was ready with information whenever I called.”

Ben and Miranda have been awarded $94,700 from Heritage EQUIP. They’ve also received a $10,000 grant from Nelson City Council. The strengthening work, which is only internal, won’t affect the building’s heritage value. Lambretta’s will continue to be part of Nelson’s cityscape.

A building of architectural and historical significance

The building has architectural significance because it showcases the work of notable New Zealand architectural firm Gummer & Ford and Nelson architect Alexander Bowman. Its association with NZI and a well-known local law firm, Fell & Harley (who owned the building from 1982 to 1991), makes it of historical importance too. The building is a Category 2 historic place on the Heritage New Zealand List, and a Heritage Category C in the council’s district plan.  

“We have lost many heritage buildings in this area and those remaining need to be cherished and strengthened for the enjoyment of future generations,” says Miranda.

Strengthening work has begun upstairs

Photo of bracing at 204 Hardy Street.
New steel cross bracing added to the roof space. Photo courtesy of Miranda Wood.

The building will be strengthened in two stages – the first stage is part funded by Heritage EQUIP and aims to achieve at least 34% NBS, while completion of the second stage will see the building achieve 70% NBS.  Breaking the work into two makes it less of a strain financially, and less disruptive for the restaurant.

Stage one strengthening work involves:

  • tying the concrete parapets to the structural steel in the roof
  • strengthening the concrete columns using retrofitted steel wall cross bracing
  • strengthening the double brick infill wall above first-floor level.

Stage two strengthening work involves:

  • strengthening the double brick infill wall below first-floor level
  • installing new structural steel frames and concrete shear walls.

Strengthening an earthquake-prone building can be challenging

Ben and Miranda have encountered a number of challenges along the way, including finding professionals, securing funding, and working around the peak times at the restaurant. Until they hired an engineer, they had no way of knowing how big the job would be, what was involved or how much it would cost. The first engineers that worked on the project were slow to provide a quote and were costly in terms of time and money.

It was a frustrating time for Ben and Miranda, but they say it’s definitely worth waiting to have the best engineers work on your heritage building. They recommend speaking to others who have gone through the process, and to Heritage EQUIP. “Shop around for a good and honest structural engineer. If things go to custard, sack them,” says Ben.

All structural engineers are pretty busy because thousands of buildings need this type of work. It took their new engineers at AMK Ltd some time to return the report for the funding application. Miranda says the application process made them focus on the project and forced them to think about the steps involved, which pulled things together. “Now, with the substantial funding assistance from EQUIP and the $10,000 from Nelson City Council’s Heritage Project Fund, we have at last started work.”

The first stage of the project will likely be completed by September. Work on the ground floor is more difficult as it can only be done when the restaurant is closed. Ben and Miranda plan to either carry out the work in stages or during winter, when the restaurant is not as busy, to minimise the impact on the tenant.

Ben and Miranda have plans for the building’s future

The upstairs space has been vacant since the building was deemed earthquake prone. Ben and Miranda hope to be able to rent the upstairs to a commercial tenant once the strengthening work has been completed. “We had interest from an individual who wanted to open an art gallery – this would be a perfect match for the light-filled space. It’s also well suited to offices or community-based organisations. Being located in the heart of Nelson’s CBD adds to 204 Hardy Street’s attraction,” says Miranda.

Ben and Miranda have only been able to carry out this project as a result of the grant from Heritage EQUIP. “I wish we’d talked to the Ministry for Culture and Heritage sooner. They provided us with good advice and encouragement, and smoothed the way for us.”