Guide
The Architectural Design Process in New Zealand — What to Expect When Building a Home
Building a home is one of the most significant things you'll do. Understanding how the design process works — what happens when, and why — makes the whole journey clearer. This guide walks through each stage of the architectural design process as it typically works in New Zealand, so you can plan, budget and make decisions with confidence.
How the process works — and why it's structured this way
The architectural design process works from the general to the specific. You start wide — exploring possibilities, testing ideas — and with each stage you refine, add detail, and make decisions that lock things in. The stages exist so that you're never making a decision before you have the information to make it well.
Every stage builds on your approval of the one before it. A good designer won't rush you through or push ahead before you're comfortable. The process is there to protect you: to make sure the right decisions are made at the right time, and that nothing gets locked in before it should.
Most residential projects in New Zealand follow a broadly similar sequence — brief, preliminary design, concept design, developed design, detailed design, consent, construction — though the names and boundaries can vary between practices. What matters isn't what each stage is called, but that the logic is sound: you don't detail a junction before the room layout is agreed, and you don't apply for consent before the design is resolved.
Before you start: site, budget and finding the right designer
Before the design process begins, there are a few things worth getting in order.
Your site. If you already own land, spend time on it. Walk it at different times of day. Notice where the sun falls, where the wind comes from, what you can hear, what you can see. If you're still looking for a site, an architectural designer can help you assess options — the right site can save you significant money and open up possibilities that a cheaper but more constrained site would close off.
Your budget. Have an honest conversation with yourself — and ideally with a mortgage broker — about what you can realistically spend. Construction costs in New Zealand currently range from roughly $3,500 to $6,000 per square metre depending on complexity, location and finish level, and the total project cost includes more than just the build: there are consultant fees, council fees, site works, landscaping and furnishings to factor in. A good designer will work within your budget, but they need to know what it is.
The right designer. Not every architect or architectural designer is the right fit for every project. Look at their previous work — does it resonate with you? Meet them. Do you communicate well together? Do they listen? The design process is a close working relationship that can last a year or more. Getting the right fit matters as much as getting the right skill set.
Your brief — the foundation of everything
The brief is where the process begins. It's a conversation — usually on your site — about who you are, how you live, and what you want this home to be. A good brief captures both the practical (how many bedrooms, do you need a home office, do you have accessibility requirements) and the qualitative (how do you want the house to feel, what's your relationship with the outdoors, what matters to you about this piece of land).
Don't worry about having all the answers at this stage. Part of a designer's job is to help you discover what you want through the process itself. But the more you can share about your life, your tastes and your priorities, the stronger the foundation for everything that follows.
This stage is also about mutual fit. A first meeting is as much about whether you and the designer are right for each other as it is about the project. Good design comes from good communication, and that starts here.
Preliminary design — exploring the possibilities
With the brief established, your designer will begin exploring what the site could become. This is the widest stage of the process — loose sketches, diagrams, simple models — testing different approaches to layout, orientation and form. Nothing is locked in. The purpose is to open up the conversation and understand the range of possibilities before narrowing anything down.
During this stage, your designer will typically engage a land surveyor, conduct a site measure, obtain council property files (the LIM and project information memorandum), and begin compiling any reference imagery or precedent projects that relate to your brief.
By the end of the preliminary stage, you'll have a refined brief, a set of alternate scheme options to weigh up, and usually a mood board or material direction to begin discussing. The goal is to arrive at a preferred direction — not a finished design, but a clear sense of which approach is worth developing further.
Concept design — shaping the direction
Once a preliminary direction has been agreed, the design moves into concept stage. This is where the preferred scheme is developed into measured plans, sections and three-dimensional drawings or models. Your designer will be working through how rooms relate to each other, how the building sits on the site, where the sun enters, how indoor and outdoor spaces connect.
Sun studies, landscape integration and material options are typically explored at this stage. The design of hard landscaping — paths, terraces, retaining — begins here at a conceptual level.
By the end of concept design, you should have a clear picture of how your home will look and function. If a resource consent is required, the drawings are usually at a sufficient level to support that application. This is a significant milestone — the point at which the overall shape and character of your home is agreed before the design moves into greater detail.
Developed design — making it real
Developed design is where the concept gets specific. Your designer will be working through each space and junction in detail: specifying materials, resolving construction methods, designing kitchen cabinetry and built-in furniture, coordinating with a structural engineer, and producing measured drawings that are sufficient for pricing.
If there are specialist systems to consider — solar panels, battery storage, underfloor heating, alternative construction methods — they'll be assessed here for performance and integrated into the design.
This stage also typically involves perspective drawings, renders, and in some cases physical models or virtual reality walkthroughs to help you understand key spaces from the inside.
By the end of developed design, the majority of materials, finishes, fixtures, appliances and construction methods will be finalised. There may be a few interior details to refine later, but their direction will have been established. The drawings at this point are at a level suitable for pricing and engineering — your designer will supply an architectural set including site plans, floor plans, elevations and sections.
Detailed design and documentation
This is typically the most intensive stage for your designer. Detailed design produces the construction documentation — structural details, internal details, weatherproofing junctions, full specifications — that will be used for building consent and on-site construction. Every material, every fixing, every junction is drawn and specified.
During this phase, your designer will coordinate closely with structural engineers, and with any other specialist consultants (fire, geotechnical, energy) to incorporate their requirements. All cabinetry, plumbing positions, lighting layouts and electrical requirements are documented here.
The outcome is a complete drawing package — the set of documents that your builder will price from, that council will assess for building consent, and that the construction team will build from on site.
Resource consent and building consent
These are two different processes and it's worth understanding the distinction.
Resource consent is about land use. It's governed by the Resource Management Act and administered by your local council. If your proposed building falls outside what the district plan permits — exceeding height limits, encroaching on setbacks, exceeding site coverage, or having effects on neighbours that need to be assessed — you'll need resource consent. Not every project requires one, but many do. Your designer or a planning consultant can advise early on whether it's likely to be needed.
Building consent is about the building itself. It confirms that your design complies with the New Zealand Building Code — covering structure, fire safety, weathertightness, accessibility, energy efficiency and more. Almost every new build or significant renovation requires building consent. Council's statutory processing time is 20 working days, though in practice it can be longer.
Your designer will typically prepare and lodge the building consent application on your behalf, and manage any requests for information (RFIs) that council raises during processing. At the end of this stage, you'll have a stamped consent set ready for construction.
A note on timing: resource consent is usually applied for during or after concept design, once the overall form and layout are established. Building consent comes later, once the detailed documentation is complete. Getting the sequence right saves time and avoids double-handling.
Construction — carrying the vision through
Once building consent is granted, construction can begin. Your designer's role during this phase is to make sure that what gets built matches what was designed. This typically involves regular site meetings (fortnightly at a minimum), reviewing builder queries, approving material substitutions where needed, and being present at key construction milestones.
The level of involvement during construction varies depending on the project and the contract between you and your builder. Some clients want their designer closely involved throughout; others prefer a lighter touch with oversight at critical moments. Either way, having the design team engaged during construction matters — it's how you ensure the quality and intent of the design is carried through to the finished home.
Bringing your builder in early — a different approach
Traditionally, the architectural process runs its full course before a builder enters the picture. The designer produces a completed set of drawings, hands them to a builder, and the builder prices it — sometimes with surprises.
There's a better way. Bringing a builder into the conversation early — during preliminary or concept design — means you're designing with a realistic picture of what things cost and how they get built. Construction knowledge informs the design from the start, not after the fact.
This approach has several practical advantages. It reduces the gap between what's designed and what's buildable. It means the builder understands the design intent, not just the drawings. It leads to more accurate pricing earlier in the process. And it creates a team — designer, builder and client — who are all invested in the project from the beginning, rather than a builder picking up someone else's work cold at the end.
Not every practice works this way, but we believe it produces better outcomes: homes that are grounded in reality and delivered by a team that understands the whole picture.
The role of consultants
A residential build involves more than just a designer and a builder. Depending on the project, you may need some or all of the following:
Structural engineer — required for almost every project. They design the structural system (foundations, framing, connections) and produce calculations and drawings that form part of the building consent application. Your designer will coordinate with them throughout developed and detailed design.
Geotechnical engineer — assesses soil conditions on your site. Essential for sloping sites, sites with fill, or any site where foundation conditions are uncertain. The geotech report informs the structural design and can significantly affect construction cost, so it's worth doing early.
Quantity surveyor (QS) — provides independent cost estimates at key stages of the design. Engaging a QS during preliminary or concept design gives you a realistic budget check before the design is too far advanced to change course affordably.
Land surveyor — provides a topographical survey of your site showing levels, boundaries, and existing features. This is the base drawing your designer works from.
Planning consultant — if your project requires resource consent and the issues are complex (heritage, significant neighbour effects, contested environments), a specialist planner can manage the consent process and represent your interests.
Your designer should guide you on which consultants are needed, when to engage them, and help you find suitable candidates. Most practices will gather fee proposals from consultants on your behalf for your approval.
What does it cost?
Design fees for residential projects in New Zealand typically sit between 8% and 15% of construction cost, depending on the complexity and scope of the project and the level of service provided. Smaller or more complex projects tend to sit at the higher end of that range; larger, more straightforward builds at the lower end.
Most practices offer fixed fees for each design stage, agreed before work begins, so you know the cost upfront. Stages that are harder to predict in advance — like contract administration during construction — are usually charged hourly with an estimate of hours provided at the outset.
Beyond design fees, budget for: structural and other consultant fees (typically 2%–4% of construction cost), council fees for consent processing, a land survey, and a geotechnical report if required. These are project costs, not surprises — a good designer will flag them all early so you can plan accordingly.
For more detail on how we structure our fees, visit our fees page.
Frequently asked questions
How long does the architectural design process take in New Zealand?
Most residential projects take 6 to 12 months from initial brief through to building consent, depending on the complexity of the site and design. Construction then typically runs 8 to 18 months on top of that. Resource consent, if required, can add 20 or more working days to the timeline.
How much does an architectural designer charge in NZ?
Fees typically range from 8% to 15% of construction costs, depending on the project's complexity and the level of service. Many practices offer fixed fees per stage so you know the cost upfront before each phase begins.
What is the difference between resource consent and building consent?
Resource consent relates to land use — whether your proposed building complies with the district plan rules for things like height, setbacks and site coverage. Building consent confirms the design meets the NZ Building Code for structural safety, weathertightness, fire and accessibility. Most new builds require building consent; resource consent is only needed if your design falls outside the permitted activity rules for your site.
Do I need an architect or architectural designer to build a house in New Zealand?
You're not legally required to use one. But for anything beyond a simple standard build, engaging a design professional is strongly recommended. They'll help you navigate council requirements, coordinate engineers and consultants, manage the consent process, and ensure your home is well designed and well built. The investment in good design almost always pays for itself — in a better home, fewer problems during construction, and a building that holds its value.
What's the difference between an architect and an architectural designer?
In New Zealand, "architect" is a protected title under the Registered Architects Act 2005 — only those registered with the New Zealand Registered Architects Board (NZRAB) can use it. Architectural designers provide the same range of design services but may not hold formal registration. Both can design homes, lodge consents and administer construction contracts. What matters most is the quality of their work, their experience, and how well you communicate together.
When should I engage a builder?
Traditionally, builders are engaged after design is complete. However, bringing a builder into the conversation during preliminary or concept design gives you early cost certainty and ensures the design is grounded in what's actually buildable. It also means your builder is invested in the project from the start, not picking it up cold at the end.