How Do I Get a Landlord Work Letter and Turn It Into a Fixed-Price Construction Contract in 2027?

The numbers you should expect

A work letter is a lease exhibit, not a favor, and its economics are fairly predictable across most North American markets. The core number is the tenant improvement (TI) allowance, quoted in dollars per rentable square foot. For second-generation office space with usable partitions already standing, allowances commonly land in the range of roughly $20 to $60 per square foot. For cold shell or vanilla shell retail and restaurant space, where you are building from a concrete slab and a demised box, allowances run higher — often $50 to $100+ per square foot — because the landlord knows the tenant is carrying HVAC distribution, electrical branch work, plumbing, and finishes that a shell simply does not have. Industrial and flex space is the opposite: allowances are thin or zero, because a warehouse tenant is usually taking the building close to as-is.

Set against that allowance is your actual construction cost, which is the number that determines whether the deal works. A straightforward office fit-out with an open plan, a handful of offices, a conference room, and a kitchenette typically prices somewhere in the $80 to $180 per square foot band depending on market labor rates, finish level, and how much mechanical and electrical work is required. Medical, dental, and lab space climbs sharply from there because of plumbing at every operatory, specialty gas, lead shielding, and dedicated exhaust. Restaurants are the most expensive per foot of any common commercial use because of hoods, grease interceptors, make-up air, and heavy electrical service.

The gap between allowance and cost is what you fund out of pocket, amortize into rent, or negotiate away. A useful sanity check: multiply the annual base rent by the lease term to get total contract value, then look at the allowance as a percentage of it. Landlords are generally willing to reinvest a meaningful slice of a long-term lease's value in improvements, and a ten-year deal supports a far richer allowance than a three-year one because the landlord has more term over which to earn the capital back. If your allowance is a trivial fraction of the rent you are committing to, you have room to push.

Also budget for the costs that never appear in the construction contract but always appear on your credit card: architectural and engineering design fees (commonly a percentage of construction cost, often in the mid-to-high single digits for a fit-out), permit and plan review fees, low-voltage cabling, security and access control, audiovisual, furniture, signage, moving, and the project manager or owner's representative if you hire one. Furniture alone frequently rivals a meaningful share of the construction number and is almost never an allowance-eligible expense unless you negotiate it that way explicitly.

Finally, expect a contingency. On a fixed-price contract the contractor carries their own risk contingency inside the price, but you should still hold five to ten percent of the construction budget as an owner's contingency for changes you initiate, conditions nobody could see behind a wall, and the inevitable municipal inspector who wants something the plans did not show.

What drives those numbers

Four variables move a fit-out budget more than anything else, and understanding them changes how you negotiate the letter itself.

The delivery condition. This is the single largest driver, and it is exactly what a work letter is supposed to nail down. "Cold dark shell" means bare slab, unfinished walls, a stubbed utility, and nothing else — you buy the HVAC units, the electrical distribution, the restrooms, and the ceiling. "Warm shell" or "vanilla box" typically means demising walls finished and taped, a basic HVAC system installed, restrooms built to code, a finished ceiling grid, and electrical service to a panel. The difference between those two conditions can be tens of dollars per square foot. A work letter that says "landlord delivers vanilla shell" without defining vanilla shell is a dispute waiting to happen, because the term has no universal legal definition. The letter must enumerate: HVAC tonnage and whether distribution ductwork is included, electrical service size and panel location, whether the ceiling grid and tile are installed, whether the floor is sealed concrete or leveled and ready for finish, whether restrooms exist and whether they are code-compliant for your occupancy, whether sprinklers are installed and at what head density, and whether the space is separately metered.

Code and accessibility upgrades. A change of use — turning retail into a clinic, or office into assembly — can trigger accessibility upgrades, occupancy separations, additional exits, upgraded fire alarm coverage, and sometimes a sprinkler retrofit for the whole floor. These are the classic budget killers because they are invisible until a plan reviewer names them. Whether the landlord or the tenant pays for code compliance in the base building is a negotiable clause and belongs in the letter in writing.

Mechanical, electrical, and plumbing. MEP routinely eats a third to half of a fit-out budget. Moving plumbing across a slab, adding a supplemental cooling unit for a server room, or upgrading a panel because your equipment load exceeds what the base building provides are all expensive and all discoverable early if your engineer walks the space before you sign.

Schedule and market conditions. Compressed schedules cost money — overtime, premium-time inspections, expedited material. Long-lead items (switchgear, rooftop units, custom glass, certain lighting packages) can stretch delivery well beyond what a naive schedule assumes, and a contractor pricing a compressed job will price the risk.

An honest early estimate — even a rough one from a contractor walking the space with your architect before the lease is signed — is worth more than any rule of thumb, because it turns the allowance negotiation from a guess into an argument backed by a number.

Lease, TI allowance, and negotiation levers

The work letter is where the commercial deal and the construction deal meet, and the leverage you have is almost entirely front-loaded. Once the lease is executed, you are negotiating from a much weaker position, so everything below should be settled before signature.

Ask for the work letter explicitly, early, and in writing. It is standard practice for landlord counsel to attach one as an exhibit, but it is not automatic on smaller deals, and a broker focused on rent and term may not push for detail. Request it during the letter of intent stage. The LOI should already name the allowance number, the delivery condition, and who performs the work; the work letter then becomes the detailed version of what the LOI promised. If a landlord will not put delivery condition in writing, that is information about how the rest of the tenancy will go.

Decide who builds. There are two basic structures. In a landlord-build (turnkey) deal, the landlord's contractor does the work to an agreed plan and the tenant takes delivery of finished space; the tenant's risk is that the finish level is whatever the landlord's standard specifies, and change orders are priced by a contractor who is not competing for the work. In a tenant-build deal, the tenant hires the architect and general contractor and draws against the allowance through a reimbursement process. Tenant-build gives control over quality, schedule, and price competition; it also puts the administrative burden and cost overruns on the tenant. Most tenants with any real design requirements prefer to build.

Get the allowance mechanics in writing. An allowance is worthless if you cannot access it. Specify: how draws are requested (typically monthly against a schedule of values), what documentation is required (lien waivers from the general contractor and subcontractors, sworn statements, invoices, inspection sign-off), how many days the landlord has to fund after a complete draw package, whether the last portion is held until final completion and delivery of a certificate of occupancy, and what interest or offset right you have if the landlord simply does not pay. A tenant with no offset right and a slow-paying landlord is financing the landlord's building.

Negotiate what the allowance may be spent on. Landlords often try to restrict the allowance to hard construction costs affixed to the real property. Push to include architectural and engineering fees, permit fees, project management, low-voltage cabling and data, and — where possible — a carve-out for moving costs or furniture. Also negotiate the treatment of unused allowance: the strongest position is a rent credit for anything unspent, the weakest is forfeiture.

Get free rent and the construction period right. Rent commencement should not begin while you are still building. Standard structures tie commencement to the earlier of substantial completion, certificate of occupancy, opening for business, or a fixed outside date. Ask for an abatement period long enough to cover permitting plus construction, and negotiate a delay provision: if the landlord's base building work runs late, your commencement date pushes day for day, and after some threshold you get additional free rent or a termination right.

Pin down restoration. Many leases require the tenant to remove alterations at expiration and restore the premises. That is a real, sometimes large, end-of-term liability. Negotiate that any improvements built under the approved work letter plans are deemed acceptable and need not be removed, or at minimum require the landlord to designate at approval time which items must come out.

Other levers worth naming: approval of the tenant's plans within a defined number of business days with deemed-approval if silent; no landlord supervision or construction management fee, or a capped one (a percentage of hard cost is common but negotiable and sometimes waivable); free use of the freight elevator, loading dock, and building HVAC during construction; landlord cooperation on permit applications since the owner's signature is often required; and clear allocation of who pays for base building code compliance triggered by your work.

Sequencing the buildout

Converting the letter into a fixed price is a sequence, and most cost overruns trace to skipping a step or running steps out of order.

Step one: define scope with drawings, not adjectives. A contractor cannot give you a real fixed price against a narrative description. Hire an architect to produce a test fit first (a single-line plan proving your headcount and program fit the space), then design development, then a permit-ready construction set with mechanical, electrical, plumbing, and structural drawings, plus a finish schedule, door and hardware schedule, and specifications. The specification level matters enormously: "carpet tile" invites the cheapest carpet tile made; a named product, weight, and pattern gives you what you actually want and gives every bidder the same target.

Step two: pre-qualify bidders. Ask for three general contractors who have built your use, in your building type, in your market, at your size. Check licensing, bonding capacity, insurance limits, and whether they have worked in your specific building — a GC who already knows the property manager, the loading dock rules, and the local inspectors is genuinely faster. Ask each for references on projects that went badly, not just well.

Step three: bid the same documents to everyone. Issue an identical bid package with a defined due date, a required bid form, and a required schedule of values broken down by trade so proposals are comparable line by line. Require that allowances (the contractor's placeholder amounts for undecided items) be itemized and that assumptions, exclusions, and clarifications be stated explicitly. Most bid disputes come from exclusions buried in a cover letter.

Step four: level the bids. Never take the low number at face value. Put the three schedules of values side by side and find where one bidder is dramatically low — that is usually a scope gap, not efficiency. Ask every bidder the same clarifying questions in writing and require written responses. Confirm each has priced the same permit fees, the same general conditions duration, the same overtime assumptions, and the same long-lead equipment.

Step five: write the contract. For a fixed-price outcome you want a stipulated-sum agreement — a single lump sum for a defined scope, with the drawings and specifications incorporated by reference as contract documents. The alternative structures are cost-plus with a guaranteed maximum price, which gives you open books and shared savings but caps rather than fixes your exposure, and pure cost-plus, which fixes nothing. Standard industry form agreements published by the American Institute of Architects and by ConsensusDocs are widely used and well understood by contractors and their insurers; starting from one of those forms and negotiating amendments is usually cheaper and faster than a bespoke contract.

The clauses that actually protect you in a fixed-price contract: an exhaustive list of contract documents by drawing number and date, so "which set did you price?" never becomes an argument; a change order process requiring written authorization before work proceeds, with pre-agreed markup percentages on labor and material; unit prices for likely quantity variations; a substantial completion date with liquidated damages or at minimum a defined remedy for delay; a payment schedule tied to a schedule of values with retainage (commonly a percentage held from each payment until completion); conditional and unconditional lien waivers required from the GC and every subcontractor with each payment application; insurance and indemnity requirements naming you and the landlord as additional insureds; a warranty period, typically one year on workmanship with manufacturer warranties passed through; and a defined closeout deliverable list — as-builts, operation and maintenance manuals, warranties, and the certificate of occupancy.

Run permitting in parallel with bidding wherever the jurisdiction allows it, and confirm early whether your municipality offers expedited or third-party plan review — on a tight schedule, weeks of review time are often the cheapest weeks to buy back.

Where tenants get hurt

The failure patterns repeat, and nearly all of them are preventable at the work letter stage.

Undefined delivery condition. You assumed the landlord's HVAC would serve your layout; it turns out the base building provides a rooftop unit and no distribution, and now ductwork is your cost. Written enumeration in the letter prevents this entirely.

Signing the lease before any pricing exists. If your first real construction number arrives after the lease is executed, you have no leverage to fix a bad allowance. Get a contractor's rough order-of-magnitude estimate against a test fit before signature. It costs almost nothing and occasionally kills a bad deal, which is the point.

Change orders as a business model. In a landlord-build turnkey deal without competitive pricing, every deviation from the landlord's standard is priced without competition. Negotiate pre-agreed change order markups and unit prices, or take the tenant-build route.

Allowance you cannot draw. Restrictive draw conditions, slow funding, and no offset right can leave you carrying the entire construction cost on your own balance sheet for months while the landlord's obligation sits unenforced. Time limits and offset rights fix this.

Scope gaps between the architect's set and the contractor's price. The single most common source of "surprise" cost is something nobody drew: data cabling, security, kitchen equipment connection, signage electrical, fire alarm device changes, or building-standard finishes the landlord requires. A responsibility matrix listing every scope item and naming who buys it — landlord, tenant, GC, or vendor — eliminates the argument before it starts.

Restoration liability discovered at the end. Years later, at lease expiration, a demand to remove the internal staircase and restore the slab arrives with a price tag nobody budgeted. Handle it at signing.

Ignoring the adjacent workflows. The construction contract is one thread in a larger project. Furniture lead times, IT and network provisioning, carrier circuit installation (frequently the longest lead item on the entire project and routinely the thing that delays occupancy), signage permitting, insurance certificates, and the actual move all need their own schedules that tie back to substantial completion. Comparable dynamics show up in franchise buildouts, clinic expansions, and warehouse racking projects — the same discipline of written scope, competitive pricing, and a fixed-sum agreement applies, only the trade mix changes.

No owner's representative on a project big enough to need one. If the fit-out is large or your team has no construction experience, a project manager or owner's rep typically earns their fee back in bid leveling and change order discipline alone.

Related questions

What is the difference between a work letter and a construction rider?

They usually describe the same thing: a lease exhibit defining who builds what, to what standard, on what schedule, and who pays. "Work letter" is more common in office leasing; "construction rider" or "construction exhibit" appears in retail and industrial leases. Read the substance, not the title.

Should I take a turnkey buildout or the cash allowance?

Take turnkey when your requirements are generic and you lack construction bandwidth. Take the allowance and build it yourself when design quality, schedule control, or price competition matter — competitive bidding among three general contractors usually beats a landlord's sole-source contractor on both cost and finish level.

Can I use the tenant improvement allowance for furniture or IT?

Only if the work letter says so. Landlords default to restricting the allowance to improvements permanently affixed to the property. Negotiate an explicit carve-out for cabling, audiovisual, furniture, or moving costs during LOI stage — after execution, the answer is almost always no.

How long does a typical office fit-out take?

Budget several weeks for design, several more for permitting depending on jurisdiction, and roughly two to four months of construction for a modest office fit-out, longer for medical, restaurant, or lab. Long-lead mechanical and electrical equipment, not labor, is usually what sets the floor.

What happens if the contractor's fixed price comes in over the allowance?

You value-engineer, fund the gap yourself, or ask the landlord to amortize the overage into rent at an agreed interest rate over the term. Amortization is common and negotiable; getting a second competitive bid first almost always improves your position.

FAQ

Who actually writes the work letter?

The landlord's counsel typically drafts it as an exhibit to the lease, using the owner's standard form. That form is written to protect the owner, so expect it to be silent or vague on delivery condition, draw timing, and restoration. Your broker and real estate attorney should mark it up and return comments alongside the lease comments, not after — the two documents negotiate together.

What is the difference between a stipulated-sum contract and a guaranteed maximum price?

A stipulated sum is a single fixed price for a defined scope; the contractor keeps any savings and absorbs any overrun within that scope. A guaranteed maximum price is a cost-reimbursable contract with a ceiling: you see actual costs, pay a fee, and typically share savings below the cap. Stipulated sum gives budget certainty and requires complete drawings; GMP allows an earlier start on incomplete documents and gives transparency, but your final number is not truly fixed until the scope is fully bought out.

Do I need permit drawings before bidding?

You need a complete, coordinated construction set — effectively the permit set — to get a genuine fixed price. Bidding schematic drawings produces bids full of assumptions and exclusions that turn into change orders. If schedule pressure forces early bidding, use a GMP structure and convert to a fixed sum after the documents are complete and the scope is bought out.

How much retainage should I hold?

A percentage withheld from each progress payment until substantial completion is standard practice, with the balance released after punch list completion and delivery of closeout documents and lien waivers. Some jurisdictions cap retainage by statute on certain project types, so confirm local law. Reducing retainage at a high completion threshold is a reasonable concession that keeps subcontractors motivated at the end of the job.

What protects me from mechanic's liens on the space I lease?

Require conditional lien waivers with each payment application and unconditional waivers with each payment, from the general contractor and every subcontractor and major supplier. Confirm what your lease requires — many leases obligate the tenant to bond off or discharge any lien within a set number of days. Some landlords also require a notice of non-responsibility to be posted, which protects the fee owner's interest from tenant-initiated work.

Can I negotiate the landlord's construction management fee?

Yes. A supervision or construction management fee charged on tenant-build work is common but is a negotiated item, not a fixed cost of doing business. Push to cap it, to apply it only to hard costs, or to waive it entirely in exchange elsewhere in the deal. In softer commercial leasing markets it is among the first concessions a landlord will give.

Sources

• https://www.aiacontracts.com/ — American Institute of Architects standard contract documents, including stipulated-sum and cost-plus/GMP owner–contractor agreements.
• https://www.consensusdocs.org/ — ConsensusDocs standard construction contract forms developed by a coalition of industry associations.
• https://www.agc.org/ — Associated General Contractors of America: contracting practices, industry guidance, and construction market resources.
• https://www.iccsafe.org/ — International Code Council: model building codes and the code triggers that drive change-of-use upgrade costs.
• https://www.ada.gov/ — U.S. Department of Justice ADA information, including the ADA Standards for Accessible Design applicable to commercial alterations.
• https://www.bls.gov/ppi/ — U.S. Bureau of Labor Statistics Producer Price Index, used to track construction material and input cost movement.
• https://www.census.gov/construction/c30/c30index.html — U.S. Census Bureau Construction Spending data.
• https://www.boma.org/ — Building Owners and Managers Association: standards for measuring rentable and usable area, which determine allowance math.
• https://www.sba.gov/business-guide/manage-your-business/buy-assets-equipment — U.S. Small Business Administration guidance on leasing versus buying space and equipment.
• https://www.nar.realtor/commercial — National Association of Realtors commercial real estate research and market reports.

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