Conventional Office Space in Singapore: The Complete Enterprise Guide

Quick answer

A conventional Grade A office in Singapore means a direct lease (typically 3–5 years, sometimes longer) in a premium CBD tower — large floor plates, high ceilings, and full control over layout and branding — in exchange for a security deposit (commonly 3–6 months, scaled to your entity’s paid-up capital) and, at lease end, reinstatement costs to return the space to base-build condition (commonly S$20–30 per square foot). It suits companies with a committed multi-year headcount and budget for upfront fit-out capital; flexible workspace remains the better starting point if either of those isn’t yet settled.

Last verified: 24 September 2026.

Conventional Grade A, in plain terms

Grade A offices are Singapore’s premium commercial tier: CBD locations (Raffles Place, Marina Bay, Tanjong Pagar being the three core districts), large floor plates (typically 15,000–30,000 sq ft), high ceilings, and modern building systems, often with BCA Green Mark certification. See our Grade A office pillar page for the full building directory across all three districts.

What that pillar page doesn’t cover — and what this guide adds — is what actually happens commercially once you sign: the deposit, the lease term, the reinstatement obligation at the end, and how all of that compares to simply taking flexible workspace instead.

This guide focuses on conventional Grade A leasing specifically — the commercial framework, technical due diligence, and process. If you’re still deciding between flexible workspace and a direct lease, see our Enterprise Guide to Serviced Offices in Singapore for that comparison, or use our TCO calculator for a direct cost comparison between the two paths.

Singapore’s Grade A office market right now

As of Q2 2026, per CBRE, JLL, and Cushman & Wakefield:

Core CBD Grade A rents are in their sixth consecutive quarter of growth — CBRE puts Core CBD Grade A gross effective rent at approximately S$12.50 per sq ft/month (+0.8% quarter-on-quarter), while JLL’s broader CBD Grade A basket shows S$12.19 per sq ft/month (+1.1% quarter-on-quarter). Vacancy is tight: CBRE reports Core CBD Grade A vacancy at a record-low 3.3%; JLL’s vacancy excluding new supply sits at 5.6%, a nine-quarter low. Supply is genuinely constrained — Shaw Tower was the only major Grade A completion in 2026, and JLL identifies Newport Tower as the sole non-strata Grade A completion expected in 2027; the next meaningful wave isn’t expected until 2028. Cushman & Wakefield forecasts a further 4–5% rent growth across 2026.

Sources: JLL, CBRE, Cushman & Wakefield via Mingtiandi.

What a conventional lease actually costs beyond headline rent

• Security deposit: commonly 3–6 months of rent, generally scaled to the tenant entity’s paid-up capital — a newer or smaller entity should expect to sit toward the higher end of that range.
• Fit-out costs: conventional space is typically leased bare or with base-build finishes only; budget separately for a full fit-out, which flexible workspace avoids entirely.
• Reinstatement costs: at lease end, tenants are typically obligated to return the space to base-build condition, commonly costed at S$20–30 per square foot depending on the extent of fit-out done during the tenancy.
• Lease term: conventional Grade A leases in Singapore are commonly 3–5 years or longer, versus the month-to-month or short-term flexibility of serviced/flex space.
• Rent-free fit-out period: landlords commonly offer 1–2 months rent-free to cover your fit-out works before rent commences, though service charges typically still apply during that period. This can extend up to 6 months for a large-scale commitment — a multi-floor take-up of 100,000+ sq ft on a 5-year-plus lease — reflecting the larger fit-out scope and longer lease term, not a fixed rule.
• After-hours air-conditioning: standard service charges cover air-conditioning during normal business hours only (commonly 8am–6pm weekdays); requesting it outside those hours typically incurs a separate per-hour charge, commonly in the S$40–100 range depending on the building.
• Stamp duty and legal costs: a signed tenancy agreement in Singapore is subject to stamp duty under IRAS’s Lease Duty rules — 0.4% of the total rent payable for leases of 4 years or less, or 0.4% of four times the Average Annual Rent (AAR) for longer leases. Use IRAS’s own Renting a Property guidance and e-Stamping calculator to confirm the current method and calculate the exact figure for your lease, since AAR is based on the higher of contractual or market rent and the rate is set by IRAS. Separately, tenants typically pay the landlord’s lawyer to prepare the tenancy agreement — fees commonly range from S$2,500 to S$6,000, depending on the complexity of the agreement and whether amendments are required. Both are standard, budgetable parts of a conventional lease that flexible workspace generally doesn’t involve.

These figures are general market benchmarks, not quotes for any specific building — confirm current terms directly for any building you shortlist, since they vary by landlord and by your specific negotiated terms.

What to negotiate before you sign

A conventional Grade A lease has more room to negotiate than the headline rent alone suggests:

• Rent-free period length — often tied to lease commitment length and fit-out complexity; larger footprints can sometimes negotiate more.
• Service charge escalation caps — ask whether annual service charge increases are capped, rather than left open-ended.
• Reinstatement scope — clarify in writing exactly what “base-build condition” means for your specific unit before you fit it out, to avoid disputes at lease end.
• Renewal and expansion options — a right of first refusal on adjacent space, or a pre-agreed renewal rate, can matter more over a multi-year term than a small difference in the initial headline rent.

None of these are guaranteed — they are points worth raising during negotiation, and outcomes depend on the landlord, building, and market conditions at the time.

A CBD-wide view: where Grade A conventional space sits in Singapore

• Raffles Place — Singapore’s traditional financial-district core; see our district guide for building-level detail.
• Marina Bay — MBFC, Marina One, and Asia Square anchor this newer, purpose-built financial precinct.
• Tanjong Pagar — a strong concentration of Grade A towers including Guoco Tower, Capital Tower, CapitaSky, and Frasers Tower, increasingly popular with technology and multinational tenants.

Example buildings worth reviewing directly: Guoco Tower, Capital Tower, and CapitaSpring — each building hub carries current tenant mix, specifications, and asking-rent detail.

Sustainability certification and ESG reporting

For an MNC or regional HQ with its own sustainability commitments or investor ESG reporting requirements, the building’s certification tier is a genuine operational input, not just a marketing point.

BCA Green Mark (Singapore’s own scheme, mandatory for new commercial buildings over 5,000 sqm since 2008) rates buildings across four main tiers — Certified, Gold, GoldPLUS, and Platinum — assessed on energy efficiency, water efficiency, environmental protection, and indoor environmental quality, with newer Super Low Energy and Zero Energy tiers above Platinum for the most advanced buildings. Singapore’s Green Building Masterplan 3.0 targets 80% of all buildings (by floor area) certified by 2030, so certification coverage across Grade A CBD stock will keep expanding.

LEED (the US Green Building Council’s international scheme) uses a comparable Certified / Silver / Gold / Platinum structure and is sometimes held alongside Green Mark by buildings targeting international investors or MNC tenants who report against global rather than Singapore-specific frameworks.

What to ask before shortlisting: the specific certification tier (Gold and Platinum are materially different for reporting purposes), whether the certification covers the base building, the tenant’s own fit-out, or both, and whether the building publishes energy/water consumption data your sustainability team can cite directly in its own reporting.

Sources: BCA Green Mark Certification Scheme, Green Mark Certification Scheme explained.

Technical due diligence for enterprise occupiers

Beyond floor plate size and location, a technical evaluation for an enterprise-scale fit-out typically covers:

• Floor loading capacity — matters for server rooms, dense filing/archive areas, or specialised equipment
• Power supply and redundancy — available power density per floor, whether dual/backup power feeds exist, and headroom for future load growth
• Connectivity — fibre providers already terminating in the building, and lead time to bring in a new provider if needed
• HVAC zoning and after-hours capability — whether individual floors or zones can run after-hours air-conditioning independently, relevant for trading floors or teams with extended hours
• Floor plate efficiency — the ratio of usable to gross floor area, and how column placement affects your intended layout
• Security and access control — building-level access systems, and how they integrate with your own floor-level security requirements

These are exactly the questions worth raising during a building viewing, alongside the commercial terms already covered above — confirm current specifications directly with the building’s management, since they vary by building and can change with base-building upgrades.

How we manage the process for you

A conventional Grade A lease involves more moving parts than a flexible-workspace agreement — technical specifications, certification tiers, and landlord negotiation all need coordinating alongside the commercial terms. Here’s how we manage that on your behalf:

1. Requirements definition — headcount (current and projected), budget, timeline, technical needs (power, connectivity, floor loading), and sustainability/certification requirements, captured upfront so the shortlist is right the first time.
2. First shortlist within 24 hours, drawn from live availability across Raffles Place, Marina Bay, and Tanjong Pagar.
3. Comprehensive shortlist within 48–96 hours, including technical specifications and certification tier for each building where available.
4. Viewings, arranged directly with the landlord or agent — we coordinate technical due-diligence questions directly with building management alongside the viewing.
5. Negotiation and lease execution — we negotiate commercial terms (rent, rent-free period, escalation caps, renewal/expansion options) on your behalf; no fees are payable by your company in most transactions. Your own legal counsel reviews and finalises the lease document itself.

Throughout, we act as a single point of coordination across landlords, buildings, and technical questions — so your team isn’t managing multiple parallel conversations to get to a shortlist you can actually act on.

Frequently asked questions

How much deposit should we budget for a Grade A lease in Singapore?
Commonly 3–6 months of rent, generally scaled to your entity’s paid-up capital — confirm the specific requirement with your shortlisted landlord, as it varies by building and tenant profile.

What is reinstatement, and how much should we budget?
Reinstatement is the obligation to return your leased space to base-build condition at lease end. Budget commonly S$20–30 per square foot, depending on how extensive your fit-out was.

Should we start with flexible workspace or go straight to a conventional lease?
If your headcount and budget for the next 3–5 years are firm, a conventional lease is usually more cost-efficient over that period. If either is still uncertain, flexible workspace lets you start immediately without locking in a multi-year commitment.

Is your service really free for tenants?
Yes. Find Your Next Office’s fees are paid by landlords in most transactions, not by tenants, whether you choose conventional or flexible space.

Ready to move forward?

Book a confidential discussion with our Enterprise Workspace Advisory Team — we’ll walk through your headcount, budget and timeline, then shortlist genuinely available options and manage the process end-to-end on your behalf. No fees are payable by your company in most transactions.

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