What are subletting and assignment clauses in a commercial lease?

Subletting and assignment clauses govern whether a tenant can transfer its lease interest to another occupant — and on what terms. The distinction between subletting (the tenant retains liability, the subtenant pays sub-rent) and assignment (a full transfer of the tenant's position) shapes who is on the hook at default. Landlord consent requirements, recapture rights, profit-sharing on excess rent, and deemed-approval timelines are all negotiating points. Holdmark extracts these clauses from the uploaded lease PDF and binds every value to the page and section that produced it, so the audit trail reads as a verification step rather than a guess.

Subletting keeps the original tenant liable; assignment transfers the position — and the distinction matters at default.

A sublease sits between the original tenant and a new occupant: the original tenant remains in privity with the landlord and owes all obligations under the head lease, regardless of whether the subtenant pays. An assignment transfers the tenant's entire leasehold interest to an assignee — but the original tenant's release from future obligations is not automatic. Most leases require an explicit landlord release for the original tenant to walk away; absent a release, the original tenant and the assignee are both on the hook.

The clause usually reads as a consent requirement layered over a definition of “transfer” — the breadth of that definition determines which transactions require consent and which are pre-approved as permitted transfers. Where the language is ambiguous, a structured abstract surfaces the field as ambiguous rather than resolving it silently — the audit trail is the deliverable.

Consent standard, recapture, profit-sharing, and deemed-approval — each with its own failure mode.

Subletting vs. assignment distinction

Whether the original tenant stays liable — or walks away entirely.

A sublease is a deal between the original tenant (the sub-landlord) and a new occupant (the subtenant): the original tenant remains in privity with the landlord, keeps all obligations under the head lease, and collects sub-rent from the subtenant. An assignment transfers the original tenant's entire leasehold interest to an assignee; the original tenant may be released from future obligations — or may not be, depending on whether the landlord grants a release. The distinction matters most at default: the landlord can pursue the original tenant for a sublease; for an assignment without release, it depends on the lease language.

Flag: Confirm whether the clause distinguishes sublease from assignment and whether an assignment requires an explicit landlord release to extinguish the original tenant's ongoing liability.

Landlord consent requirements

The standard that governs whether the landlord can say no.

Most consent clauses fall on a spectrum: absolute landlord discretion (landlord may withhold for any reason), reasonable-consent standard (landlord may not withhold unreasonably), or permitted-transfer carve-outs (affiliates, parent-subsidiary mergers, and asset sales are pre-approved without requiring consent at all). The reasonable-consent standard is the default negotiated position; the permitted-transfer list determines how much of the tenant's likely transaction universe bypasses the consent process entirely.

Flag: Confirm the consent standard (absolute vs. reasonable), the permitted-transfer list (which entities and transaction types are pre-approved), and whether the landlord must give reasons for a refusal.

Recapture rights

The landlord's option to take back the space rather than consent.

A recapture clause gives the landlord the right, when the tenant requests consent, to terminate the head lease (or the relevant portion) and deal directly with the proposed subtenant or assignee — effectively substituting its own deal for the one the tenant negotiated. The landlord benefits because it can capture a stronger occupant or reset rent to market. The tenant loses its deal and often its negotiating leverage. Recapture windows are typically 30–60 days from notice and may cover all or only a portion of the space.

Flag: Confirm whether a recapture right exists, whether it covers the whole space or just the sublet portion, the window to exercise, and whether a recapture terminates the tenant's liability for the recaptured space.

Profit-sharing provisions

Whether the landlord shares in excess rent the tenant collects.

When a tenant sublets or assigns at a rent above the head-lease rate (commonly called excess rent or bonus rent), many leases require the tenant to split that excess with the landlord — typically 50 / 50 after deducting the tenant's documented subletting costs (brokerage fees, fit-out costs, rent abatements). The definition of "excess rent" matters: some leases compute it against base rent only; others fold in escalations, CAM, and parking. The cost-deduction list and the sharing ratio are both negotiating points.

Flag: Confirm whether a profit-sharing clause exists, the sharing ratio, which costs are deductible before sharing, and how excess rent is defined (base rent only vs. all-in rent).

Deemed-approval timelines

Silence as consent — and the notice chain that triggers it.

A deemed-approval (or automatic-consent) clause provides that if the landlord does not respond to a consent request within a specified period — commonly 10–30 days after receipt of a complete request package — consent is deemed granted. The clause usually requires a second notice specifically referencing the deemed-approval trigger, with an additional shorter window (5–10 business days) before consent takes effect. Landlords often resist the clause; where they accept it, they negotiate the window up and the notice requirements down.

Flag: Confirm whether a deemed-approval clause exists, the response window, whether a second notice is required, what must be in the consent-request package, and whether deemed approval survives a landlord recapture right.

Holdmark surface

Every subletting and assignment field in the abstract is bound to the clause that produced it.

When a lease PDF is uploaded, Holdmark extracts subletting and assignment terms the same way it extracts CAM clauses and renewal options: the consent standard, the permitted-transfer list, the recapture trigger and window, the profit-sharing ratio and cost-deduction list, and the deemed-approval timeline. Each value lands as a string field in the abstract with the page number and section reference that produced it — auditors verify in one click rather than re-reading the PDF.

Flag: Audit trail in the abstract is the deliverable: a value without a page reference does not surface as bound to the source.

Four checks worth running before the subletting and assignment clause is signed.

Reasonable-consent standard and permitted-transfer carve-outs.

Push for a reasonable-consent standard if the lease reads as absolute discretion, and negotiate a broad permitted-transfer list: affiliates, parent-subsidiary mergers, sales of all or substantially all assets, and entity restructurings. The permitted-transfer list is the practical carve-out — most tenants' likely transactions will fall into it and will bypass the consent process entirely if it is broad enough. Confirm whether the landlord must give reasons for a refusal under the reasonable-consent standard, and whether silence within the deemed-approval window counts as a refusal.

Recapture rights — trigger conditions and exercise windows.

Negotiate the recapture right narrow: limit it to subleases covering more than a threshold share of the space (e.g. more than 50% of the premises) or to assignments, and set the exercise window short (15–30 days from receipt of a complete consent package). Confirm whether a recapture terminates the head lease in full or only for the recaptured portion, and whether the recapture right survives or lapses once the tenant withdraws its consent request — a landlord that lets the window pass and then recaptures at a later date is the ambiguity to close.

Profit-sharing formula and exclusions.

If a profit-sharing clause exists, negotiate the deductible cost list broadly (brokerage commissions, legal fees, tenant improvement allowances, rent abatements, and unamortised fit-out costs paid by the tenant) and confirm the sharing ratio (50 / 50 is common; 25 / 75 in favour of the tenant is the upper-end negotiated result). Confirm how excess rent is defined — a clause that computes it against base rent only is more tenant-favourable than one that folds in escalations, CAM, and parking charges.

Deemed-approval timelines and notice formalities.

Negotiate the response window down (10–15 business days from a complete package is achievable) and limit the contents of the required consent-request package so the clock does not restart on minor omissions. Confirm whether a second notice is required to trigger deemed approval and the form it must take. Confirm whether the deemed-approval right survives a landlord recapture right or is extinguished by the landlord's recapture election — a landlord that recaptures after the deemed-approval window has run is the timing trap to close.

Each value is bound to the page and section reference in the source lease — auditors verify it in one click. The per-lease notification schedule lives in alert preferences; plans and integrations live on the pricing page.

When you're ready to send the first PDF.

The early-access cohort opens through the intake page, or send an anonymised lease and Holdmark will return the records side by side. Holdmark surfaces subletting and assignment terms as explicit fields in the extracted abstract — the consent standard, the permitted-transfer list, the recapture trigger and window, the profit-sharing ratio and cost-deduction list, and the deemed-approval timeline — bound to the page and section reference in the source PDF, so the audit trail reads as a verification step rather than a guess. For a sense of how the structured record reads end-to-end, the pricing page includes a sample extraction from a 30-page office lease.