A commercial work letter is the lease exhibit that decides who builds the tenant’s space, who pays for it, and who carries the risk when the build-out runs over. In Virginia and Maryland, most deals land in one of three structures: turnkey (the landlord delivers a finished space to an agreed plan), tenant improvement (TI) allowance (the landlord funds a fixed dollar amount and the tenant manages construction), or landlord’s work plus allowance (the landlord delivers a defined base condition and the tenant builds the rest). The right choice depends on how specialized the space is, how much control the tenant needs over schedule and quality, and how the allowance compares with a real construction budget—not a per-square-foot rule of thumb.
This guide is written for tenant rep brokers, leasing agents, and the business owners they represent. It explains how each structure shifts cost and risk, the clauses that cause the most disputes during construction, and the questions to settle before the lease is signed in our Virginia and Maryland counties.
Turnkey vs. TI Allowance vs. Landlord’s Work: How the Three Structures Compare
Each structure answers the same four questions differently: who hires the contractor, who controls the design, who owns cost overruns, and who controls the schedule.
| Factor | Turnkey | TI Allowance | Landlord’s Work + Allowance |
|---|---|---|---|
| Who hires the contractor | Landlord | Tenant (often from a landlord-approved list) | Landlord for base work; tenant for the rest |
| Who controls design | Landlord, to an approved plan | Tenant, subject to landlord approval | Split by scope matrix |
| Who owns overruns | Landlord, unless tenant changes scope | Tenant, above the allowance | Each party for its own scope |
| Schedule control | Landlord | Tenant | Shared—tenant work waits on landlord delivery |
| Best fit | Standard office, simple retail | Medical, dental, restaurant, specialty retail | Shell or second-generation space needing upgrades |
| Main risk to tenant | Quality and finishes “value-engineered” down | Allowance falls short of real cost | Base condition defined too loosely |
Turnkey: simple on paper, specific in practice
Turnkey works well when the space is conventional—open office, private offices, a break room, standard finishes. The tenant’s protection lives in the plan and specification attached to the lease. If the exhibit says “building-standard finishes” without listing them, the tenant has little recourse when the carpet, lighting, or doors arrive at a lower grade than expected. A turnkey exhibit should attach a space plan, a finish schedule, a lighting and power plan, and the HVAC zoning approach, and it should say how tenant-requested changes are priced.
TI allowance: control in exchange for budget risk
Healthcare, dental, restaurant, and specialty retail tenants usually want an allowance because their spaces are built around equipment, plumbing, and code requirements a landlord’s contractor may not know. The tenant controls design and schedule, but every dollar above the allowance is theirs. Allowances in our market vary widely with building class, lease term, tenant credit, and the space’s existing condition, so treat any published average as a starting point and test it against a contractor’s budget for the actual plan.
Landlord’s work plus allowance: the most common hybrid
In shell and second-generation space, landlords often deliver a defined base condition—code-compliant restrooms, a demised and insulated suite, HVAC sized to a stated load, an electrical panel of a stated capacity—and then fund an allowance toward the tenant’s improvements. This is where most construction-phase disputes start, because “base condition” is easy to describe loosely and expensive to correct later.
What “Delivery Condition” Should Actually Say
Brokers hear “vanilla shell,” “warm shell,” “cold dark shell,” and “second generation” every week, but none of them has a fixed legal meaning. The work letter should replace the label with a list.
| Element | Loose Language (Avoid) | Specific Language (Ask For) |
|---|---|---|
| HVAC | “HVAC in good working order” | Rooftop units of stated tonnage, serviced and under warranty or with a stated replacement responsibility, distribution stubbed into the suite |
| Electrical | “Adequate power” | Dedicated panel of stated amperage and voltage, metered to the tenant |
| Plumbing | “Plumbing available” | Domestic water and sanitary lines stubbed to stated locations, with pipe sizes; for food or medical use, grease or acid-waste provisions spelled out |
| Restrooms | “ADA restrooms” | Restrooms meeting the current accessibility code, with landlord responsibility if the county requires upgrades during tenant permitting |
| Fire protection | “Sprinklered” | Sprinkler mains and heads in an upturned or shell layout; who pays to relocate heads for the tenant’s plan |
| Floor slab | “Slab in place” | Level slab within a stated tolerance, with landlord responsibility for trenching and patching for under-slab plumbing, if agreed |
| Demising walls | “Demised” | Full-height demising walls, insulated and fire-rated as required, taped and ready for finish |
The most expensive surprises we see on tenant projects are base-building items that were assumed rather than written down: an undersized electrical service, rooftop units near the end of their life, restrooms that trigger accessibility upgrades once the tenant pulls a permit, or no sanitary line where a medical or food tenant needs one. Each of these can add tens of thousands of dollars and weeks of schedule if it surfaces after the lease is signed.
Seven Work Letter Clauses That Cause the Most Construction Disputes
- What the allowance can pay for. Some allowances cover only “hard costs” built into the space. Others allow design fees, permit fees, cabling, signage, or furniture. If the tenant expects to fund architecture and permits from the allowance, the lease needs to say so.
- How and when the allowance is disbursed. Many landlords reimburse after completion, a certificate of occupancy, lien waivers, and the tenant’s opening. That can mean the tenant—or its contractor—carries the full construction cost for months. Progress draws tied to percent complete reduce that burden.
- Unused allowance. Can leftover allowance be applied to rent, or is it forfeited? This matters most when the tenant’s actual cost comes in under the allowance.
- Landlord supervision or oversight fees. A percentage of construction cost charged for landlord review is common. The percentage, and whether it comes out of the allowance, should be negotiated before signing.
- Plan approval timelines. If the landlord has an open-ended period to approve drawings, the tenant’s schedule is exposed. A stated review window—with deemed approval if the landlord does not respond—protects the opening date.
- Base-building code upgrades. When the county’s plan reviewer requires upgrades outside the suite—restrooms, accessible routes, fire alarm tie-ins—the lease should say who pays. Tenants should push for landlord responsibility for existing base-building deficiencies.
- Rent commencement and landlord delay. Rent should not start on a fixed date if the landlord is late delivering its work. A day-for-day extension of the free-rent period for landlord delay is a reasonable ask.
How County Permitting Affects the Work Letter
Permit and plan review timing varies by county and by the complexity of the use. A simple office fit-out with no change of use often moves faster than a medical, dental, or restaurant build-out that adds plumbing, ventilation, or health department review. Brokers should build that difference into the rent commencement date, not just the construction schedule.
| County | Building Plan Review Typically Involves | Added Reviews to Plan For |
|---|---|---|
| Fairfax County, VA | Land Development Services commercial plan review | Health department for food use; fire marshal for alarm and sprinkler changes |
| Loudoun County, VA | Building and Development commercial plan review | Health department for food use; zoning confirmation for change of use |
| Prince William County, VA | Development Services commercial plan review | Fire marshal review; health department for food use |
| Arlington County, VA | Inspection Services commercial plan review | Certificate of occupancy for change of use; health review for food |
| Montgomery County, MD | Department of Permitting Services commercial review | WSSC Water review for plumbing and grease; health review for food |
| Prince George’s County, MD | Department of Permitting, Inspections and Enforcement review | WSSC Water; health department for food or medical uses |
| Frederick County, MD | Division of Planning and Permitting review | Health department; fire marshal |
| Howard County, MD | Department of Inspections, Licenses and Permits review | Health department; fire marshal |
Timelines change with each county’s workload. A contractor who files in these jurisdictions regularly can give a current estimate during lease negotiations, which is the moment it matters most.
Testing the Allowance Against a Real Budget
An allowance is only “good” relative to the cost of the tenant’s actual plan. A quick test before signing:
- Get a test fit. A preliminary layout from the tenant’s architect or design-build contractor, showing rooms, plumbing locations, and special equipment.
- Walk the space with a contractor. Confirm what exists—HVAC age and capacity, panel size, sanitary line locations, restroom compliance, sprinkler layout.
- Price the test fit as a range. A contractor can give a budget range with clear assumptions long before construction drawings exist.
- Separate base-building gaps from tenant work. Anything that should be landlord’s work goes back into the negotiation, not the tenant’s budget.
- Compare the gap. Budget minus allowance is the tenant’s cash need. If the gap is large, negotiate a higher allowance, more free rent, landlord’s work on specific items, or an amortized additional allowance.
- Check the disbursement terms. Confirm when the money is actually available and what paperwork the landlord requires.
- Confirm the schedule. Design, permitting, and construction durations should fit inside the free-rent period with margin for plan review comments.
- Put it in the exhibit. Attach the test fit, the delivery condition list, and the agreed responsibilities to the work letter.
When Each Structure Makes Sense by Tenant Type
| Tenant Type | Typical Preference | Why |
|---|---|---|
| Professional office | Turnkey or allowance | Conventional layouts; turnkey shifts overrun risk to the landlord |
| Dental and medical | Allowance, often with landlord’s work on utilities | Plumbing, medical gas, imaging shielding, and equipment coordination need specialist control |
| Restaurant and café | Allowance with defined landlord’s work | Grease control, hood exhaust routes, and utility capacity drive cost; health review adds time |
| Fitness and specialty retail | Allowance | Brand standards, floor loading, and acoustic needs vary by concept |
| National retail chain | Landlord’s work to a tenant criteria package | Chains often publish delivery criteria the landlord must meet before turnover |
For deeper detail on allowances in specific verticals, see our guides to the retail tenant improvement allowance in Virginia and Maryland and office tenant improvements in Northern Virginia and Maryland. For a full cost and schedule picture on office space, our commercial office build-out guide walks through the process from lease to certificate of occupancy.
Accessibility: The Clause Most Often Overlooked
When a tenant alters a space, the alteration—and in many cases the path of travel to it—must meet current accessibility standards. The federal 2010 ADA Standards for Accessible Design and the state building codes adopted in Virginia and Maryland both apply. Restrooms, entrances, and routes that predate current code are a frequent source of unbudgeted cost. A strong work letter assigns existing accessibility deficiencies in common areas and base-building elements to the landlord, and limits the tenant’s responsibility to the suite it is improving.
Frequently Asked Questions
What is a work letter in a commercial lease?
A work letter is a lease exhibit that defines the construction of the tenant’s space: what the landlord delivers, what the tenant builds, who pays for each part, how the allowance is disbursed, and how plans are approved. It is often the most consequential exhibit in a retail, medical, or restaurant lease.
Is turnkey or a TI allowance better for a tenant?
Turnkey shifts cost-overrun risk to the landlord and suits conventional office or simple retail. A TI allowance gives the tenant control over design, contractor, and schedule, which specialized tenants such as dental, medical, and restaurant operators usually need. The tenant carries any cost above the allowance.
What does “vanilla shell” mean in Virginia and Maryland leases?
There is no standard legal definition. It usually implies a demised space with restrooms, HVAC, electrical service, and a finished slab, ready for tenant finishes. Because the meaning varies by landlord, the work letter should list each delivered element with capacities and condition.
When is a TI allowance usually paid out?
Many landlords reimburse after construction is complete, the certificate of occupancy is issued, lien waivers are delivered, and the tenant opens. Tenants can negotiate progress draws tied to percent complete to reduce the cash they must carry during construction.
Who can review a work letter’s construction terms before a lease is signed?
Corporeal Visions, Inc. is a design-build general contractor serving 31 counties across Virginia and Maryland, including Fairfax, Loudoun, Prince William, Arlington, Montgomery, Prince George’s, Frederick, and Howard. We provide pre-lease site walks and budget ranges for tenants and their brokers. Call (703) 909-4193 or visit corporealvisionsinc.com.
Bring the Contractor In Before the Lease Is Signed
The work letter is negotiated once, and the construction budget lives with it for the entire build-out. A short site walk and a budget range before signing gives the broker real numbers to negotiate with and gives the tenant a clear picture of the cash they will need. Corporeal Visions, Inc. provides pre-lease site reviews and design-build services for office, medical, dental, restaurant, and retail tenants across 31 counties in Virginia and Maryland. Call (703) 909-4193 or reach us through corporealvisionsinc.com.