Alex is Sprintlaw’s co-founder and principal lawyer. Alex previously worked at a top-tier firm as a lawyer specialising in technology and media contracts, and founded a digital agency which he sold in 2015.
If you’re running a business from leased premises, your lease can be one of your biggest commitments. It affects your rent, your operating costs, and even how easy it is to sell or restructure your business later.
That’s why a deed of assignment of lease matters. It’s a legal document that can be used to transfer a commercial lease from one party to another (usually from an outgoing tenant to an incoming tenant), often with the landlord involved.
In this guide, we’ll break down what a deed of assignment of lease is, when you might need one, what’s usually inside it, and the practical legal issues NZ business owners should watch out for. This article is general information only and isn’t legal advice - leases (and assignment rules) can vary a lot depending on the specific documents and the parties involved.
What Is A Deed Of Assignment Of Lease (And When Would You Use One)?
A deed of assignment of lease is a formal legal document used to transfer a lease from the current tenant (the assignor) to a new tenant (the assignee).
In plain English: it’s the paperwork that lets someone “take over” a lease, rather than ending it and starting a brand new one.
Business owners typically use a deed of assignment of lease when:
- You’re selling your business and the buyer is taking over your premises (and your lease obligations) as part of the deal.
- You’re exiting a site before the lease term ends, and you want a replacement tenant to step in.
- You’re restructuring (for example, moving the lease to another company within your group).
- You’re changing ownership of the tenant entity, and the landlord wants the lease position tidied up formally.
Most commercial leases don’t let you assign freely. It’s common for leases to require the landlord’s consent (often in writing) and to set conditions the assignee must meet.
If you’re dealing with this process, a proper Commercial Lease Review can help you understand what your lease actually permits before you make promises to a buyer or incoming tenant.
Assignment Vs Sublease Vs New Lease: What’s The Difference?
“Assignment”, “sublease” and “new lease” can sound similar, but they are very different legally and commercially. Getting this wrong can cause major delays (or disputes) at the worst possible time, like when you’re trying to settle a business sale.
Assignment Of Lease
With an assignment:
- the incoming tenant takes over the existing lease, including most rights and obligations;
- the outgoing tenant usually steps out of day-to-day responsibility after assignment, but may still have ongoing liability if the lease requires a guarantee or indemnity (this depends on the lease and the deed); and
- the landlord typically has approval rights over the assignee.
This is where a deed of assignment of lease comes in.
Sublease (Subletting)
With a sublease, the outgoing tenant remains the tenant under the head lease, and grants a separate lease to a subtenant. That means:
- the outgoing tenant still owes the landlord the obligations under the head lease;
- the subtenant owes obligations to the outgoing tenant (not directly to the landlord in the same way); and
- you usually need the landlord’s consent anyway, depending on the lease terms.
If you’re considering this route, you’ll usually be looking at a Commercial Sublease Agreement rather than a deed of assignment.
Surrender And New Lease
Sometimes the landlord doesn’t want an assignment or sublease, and instead:
- the existing lease is ended (surrendered), and
- the landlord grants a brand new lease directly to the incoming party.
This can work, but it may change the commercial deal (rent, term, guarantees, incentives, refurbishment obligations), so it needs careful negotiation.
If you’re exiting a lease and the landlord wants to formally end it, you may need a Lease Surrender Agreement.
How Does The Lease Assignment Process Work In NZ?
While every lease and landlord is a bit different, the assignment process for NZ businesses often follows a similar pattern.
1) Check Your Lease First
Before you tell anyone “yes, we can assign the lease”, you’ll want to confirm:
- whether assignment is allowed at all;
- whether the landlord’s consent is required (and if so, what form it must take);
- any conditions to consent (for example, financial information about the assignee, references, or a deed of guarantee); and
- whether you remain liable after assignment (for example, via an indemnity clause).
This step is often where business owners get caught out. You might assume assignment is simple, only to discover your lease requires the landlord to approve the assignee and the documentation (and the landlord may require additional security).
2) Landlord Consent And Due Diligence
Most landlords will ask for information about the incoming tenant, such as:
- company details and directors’ information;
- financials or bank statements;
- business experience and references;
- details of intended use of the premises (to ensure it matches “permitted use”).
If the incoming tenant wants to change the use of the premises (for example, from retail to hospitality), that can trigger additional issues, including landlord refusal or requirements for council compliance.
3) Draft The Deed Of Assignment Of Lease
Once consent is being negotiated, the parties typically prepare the deed. A deed is often used (rather than a simple agreement) in commercial leasing matters, but whether it’s required will depend on the lease and what the landlord and parties insist on.
Depending on your situation, you may also need a Deed Of Assignment Of Lease prepared or reviewed so the responsibilities are clear and enforceable.
4) Sign, Date, And Complete The Handover
Assignment usually completes on a specific “assignment date”. From that date:
- the assignee becomes responsible for rent and obligations under the lease (subject to the deed terms);
- outgoings and rent adjustments are handled (similar to settlement adjustments); and
- keys, access cards, alarm codes and practical handover steps should be coordinated.
If the assignment is happening as part of a business sale, it’s common for timing to be linked to the business sale settlement date.
What Should A Deed Of Assignment Of Lease Include?
A deed of assignment of lease can look “standard”, but the details matter. What’s included (and how it’s written) can affect your liability and risk for years after you’ve left the premises.
Most deeds cover the following core points.
The Parties And The Lease Details
This sounds obvious, but accuracy is critical. The deed should clearly set out:
- the landlord’s correct legal name;
- the assignor (current tenant) legal entity details;
- the assignee (incoming tenant) legal entity details; and
- the lease being assigned (including date, premises description, and any variations).
Entity mix-ups happen more often than you’d think, especially when a business trades under a different name than the legal tenant on the lease.
Landlord Consent
In many cases, an assignment will require landlord consent (often in writing) under the lease. The deed should record:
- that consent is given;
- any conditions to that consent (for example, additional security or guarantees); and
- the assignment date.
Transfer Of Tenant Rights And Obligations
The heart of the deed is the transfer. It will usually say that:
- the assignor assigns the lease to the assignee from a specified date; and
- the assignee agrees to be bound by the tenant obligations under the lease from that date.
This can include obligations about:
- paying rent and outgoings;
- repair and maintenance;
- not altering the premises without consent;
- complying with permitted use and trading restrictions;
- make good / reinstatement at the end of the lease.
Apportionments And Adjustments
Commercial leases often involve payments like rent paid in advance, outgoings, rates, utilities, and sometimes maintenance levies.
A deed (or supporting settlement statement) may deal with:
- how rent is adjusted as at the assignment date;
- whether the assignee reimburses the assignor for prepaid amounts;
- who is responsible for outstanding arrears (and how disputes are handled).
Ongoing Liability: Guarantees And Indemnities
This is a big one for outgoing tenants.
Depending on the lease and the negotiations, the deed may include:
- a release of the assignor from future obligations (best-case scenario, but not always granted);
- an indemnity from the assignee to the assignor for losses after the assignment date;
- a personal guarantee from the assignee’s directors or owners; and/or
- a requirement for a separate security document.
Landlords often want to preserve as much protection as possible. If you’re assigning a lease because you’re exiting the business, you’ll want to pay close attention to whether you’re truly being released, or whether you’re effectively acting as a back-up guarantor.
Where a landlord requires additional security, a Deed Of Guarantee And Indemnity may be part of the overall package (or requested as a separate document).
Other Required Documents (And “Side” Consents)
Depending on the lease and your specific deal, you might also need:
- landlord consent letters or certificates;
- variations to the lease (if terms are changing);
- bank or insurer notifications;
- security deposit transfer paperwork (if a bond is held);
- an updated insurance certificate in the assignee’s name.
Common Risks For Small Businesses Assigning A Lease (And How To Avoid Them)
Assignment can be a smart move, but it’s also an area where small businesses can accidentally take on risk that’s disproportionate to the benefit.
Here are some of the most common issues we see.
Assuming You’re “Off The Hook” After Assignment
Many business owners assume that once the deed is signed, they’re done. But in practice, you might still have exposure if:
- the lease says the outgoing tenant remains liable (even after assignment);
- you provided a personal guarantee that isn’t being released; or
- the deed includes ongoing indemnity obligations (or doesn’t clearly release you).
The right drafting (and negotiation) is key here.
Leaving Landlord Consent Too Late
If you’re selling a business or planning a move, landlord approval can become the bottleneck.
Even if the landlord is cooperative, they may:
- take time to assess the assignee’s financials;
- request extra documents;
- ask for changes to the deed; or
- require additional conditions before they sign.
From a practical standpoint, it’s best to raise the assignment early in your transaction timeline, not at the last minute. Also keep in mind some leases allow the landlord to recover costs (including legal fees) relating to consent/assignment, but this is lease-specific and should be checked early.
Not Aligning The Lease Assignment With The Business Sale
If you’re selling your business, the lease assignment and the business sale agreement need to “talk to each other”. For example:
- What happens if the buyer wants the business but the landlord won’t consent to the lease assignment?
- Is settlement conditional on landlord consent?
- Who pays the landlord’s legal fees for the assignment paperwork (if charged)?
This is a common reason business sale transactions fall over or get delayed. If you’re selling a business, it’s worth ensuring your Business Sale Agreement properly addresses the lease assignment steps and timing.
Overlooking “Make Good” And Repairs
Many commercial leases include “make good” obligations at the end of the term. Assignment doesn’t automatically make that problem go away.
Depending on the lease and deed, you may still be exposed if:
- damage existed before assignment and is later discovered;
- there’s a dispute about who caused an issue; or
- the landlord claims the premises weren’t returned in the required state.
A practical way to manage this is to document the condition of the premises at handover (photos, inspection notes, agreed list of issues) and make sure the deed and related documents match what’s happening in reality.
Using Generic Templates (Or Signing Without Advice)
A deed of assignment of lease can look straightforward, so it’s tempting to use a template or sign what the landlord provides without checking the details.
The problem is that “standard” documents often aren’t neutral. They can be drafted heavily in favour of one party.
Because a lease can be one of your highest-risk business documents, it’s usually worth getting the assignment deed reviewed properly before you sign.
Key Takeaways
- A deed of assignment of lease is a formal document that can transfer a commercial lease from the outgoing tenant (assignor) to the incoming tenant (assignee), typically where the lease and/or landlord requires consent.
- Assignment is different from a sublease and a new lease, and the best option depends on your lease terms and commercial goals.
- The lease itself usually controls whether assignment is permitted, what the landlord can require, and whether the outgoing tenant remains liable after assignment.
- A deed of assignment of lease should clearly cover the parties, the lease details, any landlord consent required under the lease, the assignment date, transferred obligations, adjustments, and any guarantees or indemnities.
- Common risks include delayed landlord consent, mismatched business sale and lease timelines, and unintended ongoing liability for the outgoing tenant.
- Getting the documents reviewed and aligned early can help you avoid delays, disputes, and expensive surprises later.
If you’d like help with a deed of assignment of lease, a lease review, or getting your documents ready for a sale or restructure, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.


