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Architectural Design 

Looking for architectural excellence? Whether considering a residential home design, a house renovation, house extension, or a commercial development, we work with you to understand your needs to transform your space for you to enjoy for life. We listen to your needs and amalgamate your brief with our aesthetic direction while assessing the site and environmental considerations.


We are advocates for sustainable house design, universal design and multigenerational design and rooms for multi use. We are skilled Homestar assessors and can provide advice on improvements to the thermal envelope.


We offer a full range of architectural design services from conceptual design to completion. We are qualified and skilled licensed building practitioners specialising in delivering exceptional architectural projects across New Zealand with centres based in Christchurch, Whangarei, Auckland and Wellington, creating inspirational and functional designs.

Architectural Design Services

  • Development Feasibility Study 

  • Concept House Design/ Concept Development Design 

  • Architectural Development and Detailed Design

  • As- built drawings

  • Project Management – Site Observation

  • Kitchen and Bathroom Designs

  • Homestar assessments 

  • Building Consent Documentation and lodgement

  • 3D house renders / 3D development renders

  • Resource Consents

  • Accessibility Reports

  • Procurement on behalf of the client

  • Operational Carbon emissions

  • Embodied carbon emission assessments

  • Assessments of the thermal envelope

Architectural design New Zealand home

 Healthy Home 

Our team are skilled in calculating the thermal envelope of the building and can advise on changes to decrease heat loss and advise on improvements to the homes interior environment.  We are experienced Homestar Designers and Assessors in both design rating and built ratings.  We can assess and predict operational carbon emissions before the house is built to help determine the running costs of the home and can calculate the carbon emissions of the build materials. 

Call us today for Homestar and Healthy Homes, Design and Draughting advice.

New Builds

Whether you are considering a rural retreat or a suburban hideaway, a home for later in life or for your young family, we work with you to understand your needs to transform your ideas to a space and home you will love and enjoy.

We will walk you through the various stages of a new build design through the design and consent process.  We will design and draw all plans to meet the local government and building code requirements and submit all documentation to the council.

Commercial Design 

Whether you are considering a townhouse development, café/restaurant, accommodation units, warehouse or sports centre we work with you to understand your needs to design new or transform your space for what you need.

We design to Lifemark and Homestar principles where possible, designing for health and in any stage of life.

We work through all aspects of the building consent process.  We specialise in delivering exceptional architectural projects across New Zealand, collaborating with our inhouse engineers, creating inspirational and functional designs.

Our team of Civil Engineers are passionate about integrating their extensive knowledge of New Zealand’s geological features into top-notch designs. Whether your project requires a specialized or standard solution, our engineers can design, verify and sign off your project

  • What is a civil engineer, and what do they do?
    Civil engineers are a category engineers who work mainly on construction projects. It is a broad title which includes anything from Structural, toGeotechnical, to Traffic Engineering.Even Environmental and Coastal Engineering are included, as well as many more. We often provide help to architects and drafters to ensure designs arecompliant with local regulations and help with the technical details of a project to make sure everything works the way it should. We can help with getting a project from the page into the real work.
  • What sort of engineering do I need?
    That depends on the job you are looking for. Cook Costello’s Civil Engineering team specialises in land development, flood modelling, three waters management, and construction monitoring. If you are looking for anything around those lines, feel free to get in touch on the here.
  • What is stormwater attenuation?
    Constructing anything on your property where there used to be nothing but grass, can disrupt the flow of water and end up increasing the amount and speed of water flowing off your site. This is because dirt, grass, or planted areas can absorb and slow down water which is something a carpark or roof can’t do. In urban areas where there is a risk of flooding your neighbours, tanks may be installed to capture and slow down the water coming off your roof or driveway so that it can be released gradually once the storm has passed. This can help spread the load and make sure no one ends up with wet socks. Attenuation is often required for any house increasing the paved and roofed area of their property.
  • What hazards may impact a development site?
    There can be many different hazards to look out for when choosing a location to develop. A main one which can affect many properties is flooding. This can reduce the usable area on your property or increase construction costs by requiring the floor level to be raised. Slope instability can also be a common issue which may require ground stabilisation with reinforcement, retaining, or other methods. The stability is difficult to predict as different soil types and topology react differently. If your site is at risk of slope instability, geological testing may be required. Other hazards include poor geology, liquefaction risk, contaminated soil, or caves and mines underfoot. These hazards each effect a site in their own unique ways so engineers may have to create a unique solution specific to your site. These hazards can often be found on your local council’s GIS map, so make sure to visit and look up your property.
  • What other issues do I need to look out for to avoid complications when developing land?
    There are many other complications which can increase costs or add delays when developing a site. Connections to local infrastructure like, stormwater or wastewater, can vary from simple to impossible depending on local availability, correct fall to lines, capacity, and obstacles. These issues can be worked around with various solutions like pumps, on-site disposal, infrastructure upgrades, or attenuation. But these come with varying effectiveness and price tags. Site access can also be an issue, especially on main roads or when near intersections. It could be worth looking up the site on local GIS maps to ensure there is local infrastructure on the right site of the road, or to commission a desktop study to ensure that the site will be worth developing.
  • What is needed for off-grid living/ building off grid?
    Building off the beaten track can be an appealing prospect for lower land costs, more privacy, or a rural lifestyle, but off-grid living comes with its own challenges. Most on-site wastewater and stormwater solutions require substantial amounts of land which must be dedicated to water management. Some soils are more effective at absorbing and treating wastewater so testing may need to be done to determine the best method. Drinking and firefighting water tanks may also be needed if there is no piped water in your area. Water can either be sourced from rainwater or underground wells. Water storage tanks vary but an off-grid house may often have between 30,000 and 60,000L of water storage.
  • What do I need for building or resource consent?
    Each council has its own requirements for consent, we can provide the engineering services required to get your project off the ground and through the consenting process. Resource consent ensures what you are doing is possible and allowed within local policy, it shows council that your project is well throughout, and you have considered any consequences for the project. This generally includes plans or drawings of the proposal, a list of proposed activities, considerations for affected parties, an environmental impact assessment, and consideration for local plans and policies. A resouces consent is required for jobs which effect the natural environment or other people, including subdivision, new buildings, and changes to stormwater discharge. A building consent is more specific and requires detailed and finalised plans before being issued. It shows council that any construction taking place is safe, legal, and fit for purpose. This ensures that the construction complies with local requirements and the national building code. A building consent is required for jobs which require construction like new buildings, retaining walls, and plumbing. Achieving building and resource consents can take a lot of time, so it is best to start on the process early. Each council has their own specific requirements for consents, and depending on the complexity of the job, it can take many revisions for all parties to be satisfied. Civil engineers are very involved in the consenting process. It is often our job to assist with and ensure consents are achieved without complication.
  • How to subdivide a property?
    There are a few steps to follow to subdivide a property, in general: It is recommended to discuss the subdivision with a planner first to ensure any project preventing issues are identified from the start. A pre-application meeting with the local council is recommended, however not required. This is a meeting which the proposal is discussed, and any requirements can be identified. Obtaining a subdivision consent from your local council. Typically, this requires a site suitability report covering the required infrastructure and geotechnical conditions within the proposed lots and a scheme plan. Obtaining a survey plan approval, 223 certification. Carrying out any requirements required by the local council, and any infrastructure required for the subdivision's final council sign off. Apply for s224c sign off once all physical works are completed. This is a certificate to certify that all conditions of the subdivision consent are met. Lodging the new titles with the Land Titles Office at LINZ and receiving your new record of title(s)
  • How do I add a new question & answer?
    To add a new FAQ follow these steps: 1. Manage FAQs from your site dashboard or in the Editor 2. Add a new question & answer 3. Assign your FAQ to a category 4. Save and publish. You can always come back and edit your FAQs.
  • Can I insert an image, video, or GIF in my FAQ?
    Yes. To add media follow these steps: 1. Manage FAQs from your site dashboard or in the Editor 2. Create a new FAQ or edit an existing one 3. From the answer text box click on the video, image or GIF icon 4. Add media from your library and save.
  • How do I edit or remove the 'Frequently Asked Questions' title?
    You can edit the title from the FAQ 'Settings' tab in the Editor. To remove the title from your mobile app go to the 'Site & App' tab in your Owner's app and customize.
New Zealand Green Building Council accreditation
Liscensed Building Practitioner New Zealand accreditation
Homestar assessor accreditation
Homestar Designer accreditation
Lifemark New Zealand accreditation

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