Built-to-suit (BTS) sits between two extremes: instead of taking a ready-built factory that does not fit the production line, the tenant commits to a long lease so the developer designs and builds a factory to its exact technical specifications on industrial park land. In exchange for that customisation come a long commitment and construction counterparty risk. This article sets out the selection criteria in that true order: partner and commitment structure first, specifications second.
1. Criterion 1 — the build-to-lease party’s capability and legal standing
The BTS party is usually the park’s infrastructure developer or a professional industrial real-estate developer. Check: its land lease is in force and long enough for your entire lease commitment (in-park land use terms follow the project term — clause 4 of Article 202 of Land Law No. 31/2024/QH15; a BTS contract cannot outrun that frame); financial capacity and on-time delivery record on earlier BTS projects (ask for the completed project list and reference contacts); and the land legal file plus approved 1/500 detailed planning of the intended construction plot. Where the developer is not the infrastructure owner, additionally check its own land lease chain with the infrastructure developer — the longer the rights chain, the deeper the legal diligence required.
2. Criterion 2 — customisation committed in writing
The BTS difference lives in the technical specification annexed to the contract: floor loading, height, column grid, floor and surface treatment, power capacity and auxiliary systems (compressed air, RO water, on-site wastewater pre-treatment), cleanroom or cold-storage requirements if any. The practical selection test: which developer accepts making the specification a binding contract annex, with acceptance testing against that specification (actual measurement, the right to refuse handover when deviation exceeds tolerance) and a transparent change-order pricing mechanism. A verbal “built to your requirements” promise with no specification annex is a signal to eliminate that developer.
3. Criterion 3 — schedule, minimum-term commitment and price structure
BTS only works economically with a long lease commitment (the market commonly starts from 10 years) because the builder recovers construction capital through rent. Three points to lock: (i) construction milestones and proportionate late-handover sanctions (the tenant plans equipment installation and hiring against these dates); (ii) post-completion rent — fixed from the start by unit price or formula (per m2, stating whether park service fees are included), avoiding a “price quoted after completion” model; (iii) the adjustment rule when construction costs move beyond a threshold — share materials risk between the parties instead of pushing it all onto the tenant through the final rent. Add the builder’s performance security (bank guarantee or payments retained against acceptance milestones).
4. Criterion 4 — the life cycle after handover
The BTS contract must pre-answer the questions of the next 10–20 years: works warranty and structural repair allocation during the term; expansion rights (phase-2 construction on the park’s reserved land) and priority leasing rights; buy-back of the factory or contract assignment on corporate restructuring; exit treatment (to what state the premises are restored, how tenant equipment is removed). Because the tenant is bound long-term, the contract also needs a clause for changes at the upper layer — infrastructure developer changes or park project transfers — ensuring the BTS contract and factory use rights are unaffected.
Frequently asked questions
How does BTS differ from subleasing park land and building our own factory?
Self-build: the enterprise subleases land, acts as construction investor itself, owns the factory and carries all construction risk, in exchange for full control of the asset. BTS: the developer is the construction investor and keeps ownership; the enterprise only leases use — lighter upfront capital and no construction risk, but no asset accumulation and a binding long commitment.
How long from BTS signing to factory handover?
It depends on scale and complexity: design, construction permitting, building and acceptance (including fire-protection acceptance) for a typical industrial factory is measured in many months to over a year. The only trustworthy number is the milestone schedule written into the contract with sanctions — never the seller’s verbal estimate.
May the tenant supervise construction quality?
This right should be agreed in the contract: the right to station a representative at phase acceptance milestones, receive progress reports and as-built files. Although the developer is the construction investor, the tenant bears the operating consequences for 10–20 years, so supervision rights at acceptance milestones are entirely legitimate.
If the company fails or withdraws midway, what happens to the BTS commitment?
This is the tenant’s biggest BTS risk: the long-term lease commitment remains a financial obligation, with the deposit and possibly a parent guarantee behind it. Before signing, negotiate a stepped early-termination clause (termination fees declining with time served), the right to assign the contract to a qualified third party, and sublease rights — the only “exits” when strategy changes.
