5 min read

Top 10 Common Mistakes to Avoid When Renovating a Home in the North Shore

Published on
June 16, 2025

Renovating a home in the North Shore in Auckland provides an opportunity to deliver functionality and modern conveniences to North Shore properties, while possibly preserving old school, traditional character. 

From charming villas in Devonport dating back to 1841 to bougie beachfront homes in Takapuna, every renovation project comes with unique opportunities and challenges. 

At West & Sons Construction, as Licenced Building Practitioners, we understand the complexities of home renovations because we’ve been perfecting the craft for decades.  

As a family-run business who puts people first, our commitment to quality has been passed down through the generations of the West family, delivering our trusted craftsmanship. One project at a time. With over 100 years of expertise, hailing from the UK, we’ve worked on countless family homes across the North Shore, ensuring every renovation meets the highest possible industry standards.  

We are Licensed Building Practitioners (LBP's) with a thriving and balanced team of experienced professionals and rising talent. Our team includes seasoned builders with decades of hands-on expertise on the tools, as well as a fresh new generation of younger skilled tradespeople who are mentored as they come up through the ranks. They bring unwavering energy, passion, drive and innovation on site. Through mentorship and collaboration, we ensure every project benefits from both traditional craftsmanship and modern construction techniques.  

Why You Need Experienced Builders North Shore Experts  

We all acknowledge that any renovation is a considerable investment financially and time wise. Avoiding costly mistakes begins with setting the tone for the project right from the outset by hiring the right builders on the North Shore who understand local regulations, weather restrictions, and local architecture. At West & Sons Construction, we specialise in working with our local North Shore’s diverse housing landscape, ensuring high-quality results that enhance durability and value.  

Renovation Mistake 1 - Underestimating the Renovation Budget

Homes in Milford, Browns Bay, and Albany vary in age, building materials and condition, making budget planning crucial for renovations. Older homes in areas like Birkenhead and Northcote often have hidden issues, such as dangerous and outdated wiring or pipes or moisture damage, which can blow up costs unexpectedly.  

How to Avoid This Mistake

- Obtain a thorough and detailed quote from builders in the North Shore with local expert knowledge.  

- Plan at least 10 - 20% of your budget to set aside as a contingency fund for unforeseen repairs, especially in older homes. 

- Invest in sustainable, quality materials that can withstand Auckland’s coastal climate and sea spray, especially in Mairangi Bay or Long Bay where you’re closer to the coast.  

Renovation Mistake 2 -  Ignoring Council Building Regulations and Permits

Many older, traditional homes in Devonport, Bayswater, and Cheltenham fall under heritage restrictions. They may require special council approvals for renovations. Failing to comply with Auckland Council regulations can lead to delays and fines.  

How to Avoid This Mistake 

- Work with Licensed Building Practitioners (LBP's), familiar with North Shore’s zoning rules.  

- Check if your property is in a heritage zone with any building facade restrictions.  

- Ensure all electrical and plumbing upgrades meet New Zealand building codes and comply with safety standards.  

Renovation Mistake 3  - Choosing the Wrong Builder  

Homes in Greenhithe  and Torbay often feature contemporary style architectural designs that require builders with specific expertise. Choosing an inexperienced contractor, without the right qualifications and local knowledge can lead to substandard work and costly redo’s. 

How to Avoid This Mistake 

- Hire builders local to the North Shore. Experienced professionals who have the right know how and understand local construction challenges.  

- Request references and view past projects in areas like Forrest Hill or Castor Bay for example.  

- Ensure the local builder is registered and qualified.  

Renovation Mistake 4 - Overlooking Structural Issues 

Due to their proximity to the water, properties in Northcote Point and Beach Haven may have foundation concerns. Renovating without reviewing and addressing any possible structural issues can lead to future complications.  

How to Avoid This Mistake

- Conduct a thorough pre-renovation inspection to uncover any potential underlying problems.  

- Particularly in homes built in the 1990s and 2000s, ensure you inspect for any leaky home symptoms. 

- Reinforce foundations in coastal suburbs, especially clifftops where erosion and moisture exposure pose huge structural risks.  

Renovation Mistake 6 - Failure to Consider North Shore Weather Conditions

North Shore’s coastal climate means properties near Takapuna Beach, Long Bay, and Torbay require weather-resistant materials.  

How to Avoid This Mistake

- Use durable exterior cladding or consider external plaster to withstand salt air.  

- Ensure you install proper insulation to regulate indoor temperatures.  

- Choose high-quality roofing materials to prevent leaks from any future heavy rainfall.  

Renovation Mistake 7 -  DIY Overconfidence

Older homes in Birkdale and Glenfield can often require electrical and plumbing upgrades that should only be handled by professionals. Any DIY efforts in an attempt to save money can lead to safety hazards or expensive corrections down the track.  

How to Avoid This Mistake  

- Leave electrical, plumbing, and structural work to licensed professionals. At West & Sons Construction, we manage all of the sub trades required for your renovation project from beginning to end.  

- We recommend you only consider DIY for basic, cosmetic changes, such as painting or landscaping.  

- Consult experts for complex renovations, especially in older homes.  

Renovation Mistake 8 - Neglecting Energy Efficiency

Many homes in Wairau Valley and Hillcrest benefit from modern insulation and heating upgrades to improve energy efficiency.  

How to Avoid This Mistake

- Consider installing double-glazed windows for better insulation and street noise reduction. 

- Upgrade to energy-efficient appliances to reduce electricity costs.  

- Consider installing solar panels, which are becoming more popular in North Shore homes, particularly with consideration to current no interest loans and schemes available.  

Renovation Mistake 9 - Overlooking Property Resale Value 

Over-capitalising in your renovation can make it harder to sell later. Buyers in Sunnynook, Takapuna, and Browns Bay tend to prefer neutral, timeless designs.  

How to Avoid This Mistake

- Stick to classic colour schemes that appeal to a broad market.  

- Avoid overly niche renovations that may limit resale potential. Opt for classic styles that don't date over short lived fashion trends.

- Focus on high-impact upgrades such as kitchens and bathrooms.  

Renovation Mistake 10. Rushing the Renovation Process

Renovations in Albany, Devonport, and Beach Haven require careful planning. Rushing the building project can lead to poor workmanship issues and missed details. Causing frustrations and costly redo’s down the track.

How to Avoid This Mistake

- Have transparent communication with your North Shore builder, and set a realistic timeline.

- Allow plenty of time for weather contingencies. 

- Allow for adequate times for council permits and inspections.  

- Be patient, good, quality renovations take time. 

On reflection, renovating a home in the North Shore requires local expertise, careful planning, and a skilled and seasoned construction team committed to top notch results. Whether you’re updating a beachfront property in Milford or restoring a heritage home in Belmont, avoiding these common mistakes ensures the smoothest possible renovation process.  

At West & Sons Construction, we take pride in being a family-run business with over 100 years of craftsmanship passed down through generations. Our reputation is built on trust, quality, and dedication. One project at a time.  

For additional factors and considerations in choosing the best builder for your project, read on with this blog written for the wider Auckland area; Choosing the Right Construction Company in Auckland. 

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