What documents does a lender need for a commercial mortgage application?
A commercial mortgage submission requires a broader and more layered document set than residential. The lender is underwriting the property, the tenant, the borrower, and the income stream — four separate risk assessments that all need supporting evidence.
Most broker submissions for commercial mortgages fail not because the deal is wrong, but because the pack is incomplete. A residential broker moving into commercial for the first time often submits the same type of pack they would for a BTL — borrower details, valuation, and income figures. That is about half of what a commercial lender needs. The other half is where the follow-up questions come from.
Here is the complete document set, broken into the categories a commercial lender’s credit committee will assess.
What property documents are required for a commercial mortgage?
The property documentation for a commercial mortgage goes well beyond a valuation and title report.
Commercial valuation report. This must be a Red Book (RICS) valuation from a surveyor with commercial property experience. Residential valuers revaluing a commercial asset is a common reason for lender rejection. The valuation should include the investment method, comparable evidence, and a clear opinion on marketability. For mixed-use properties, the valuation must break down the commercial and residential elements separately.
Title documents. Title register, title plan, and any charges or restrictions registered against the property. For leasehold commercial properties, the head lease must be included — lenders will want to see the unexpired term, any break clauses, and landlord obligations.
EPC (Energy Performance Certificate). Minimum E rating required for commercial lets under MEES regulations. If the property is below the threshold or approaching it, include evidence of planned works to bring it into compliance. Lenders are increasingly sensitive to this — a property that cannot legally be let is a property with no income.
Environmental and planning documentation. For industrial or former industrial sites, an environmental desktop study (Phase I) may be required. Planning consent confirming the current use class. If there has been a recent change of use, include the planning approval and any conditions. Flood risk assessments for properties in areas identified on the Environment Agency flood maps.
Building insurance. Evidence of current commercial building insurance with reinstatement value matching or exceeding the valuation figure.
What tenant and lease documents do commercial lenders require?
The income stream is the primary security for a commercial mortgage. Lenders will scrutinise the tenancy arrangements in detail.
Lease schedules. For multi-let properties, a full schedule showing each tenant, the demise, the lease start and end dates, break clauses, rent review dates, and current passing rent. This should be a structured document, not a stack of individual leases for the lender to sort through.
Full lease copies. The actual lease agreements for all tenants. Lenders will review the lease terms, repair obligations, alienation clauses, and any unusual provisions. Pay particular attention to any side letters or deed of variations that amend the original lease terms — include these as well.
Tenant covenant information. For commercial tenancies, the lender assesses the tenant’s ability to continue paying rent. This means the tenant’s most recent filed accounts (usually three years), or for smaller tenants, evidence of trading history. For government or listed company tenants, the covenant strength is self-evident. For SME tenants, this documentation is critical and frequently missing from submissions.
Rent roll and income verification. A current rent roll showing gross and net income, any rent-free periods, arrears history, and service charge contributions. Bank statements showing rent receipts for the past 6 to 12 months. If there are voids, include a void schedule with the broker’s commentary on re-letting prospects.
Tenancy deposit documentation. Evidence that tenant deposits are held appropriately and the amounts protected.
What borrower and sponsor documents are needed?
Commercial mortgage borrowers are almost always corporate entities, which adds a layer of documentation that personal borrowers do not require.
Company structure. Full corporate structure showing the borrowing entity, any holding companies, and ultimate beneficial owners. Companies House filings should be current. If the borrowing entity is an SPV, include details of the parent company and its financial position — a shell company with no assets other than the property does not give the lender comfort on its own.
Company accounts. Three years of filed accounts for the borrowing entity and, if relevant, the parent company or guarantor entity. Management accounts if the latest filed accounts are more than nine months old.
Personal guarantor information. Most commercial mortgage lenders require personal guarantees from the ultimate beneficial owners. That means personal asset and liability statements, proof of identity, proof of address, and source of wealth documentation. These are frequently the last documents to arrive and the first thing lenders chase.
Borrower CV or track record. Evidence that the borrower or sponsor has experience managing commercial property. Lenders differentiate between a borrower with a portfolio of 15 commercial units and a first-time commercial investor. The track record document should list properties owned or managed, acquisition and disposal dates, and outcomes.
AML documentation. Certified ID, proof of address, source of funds for the equity contribution, and source of wealth for the guarantors. Commercial lenders are subject to the same AML regulations as residential, but the corporate structure often means more individuals need to be verified.
How does a commercial mortgage pack differ from residential?
The fundamental difference is complexity of income verification. A residential BTL lender needs a tenancy agreement and a rental valuation. A commercial lender needs to understand the tenant’s financial health, the lease structure, the rent review mechanism, and the re-letting risk if the tenant leaves.
Commercial packs also require more property-level due diligence. Environmental risk, planning compliance, MEES regulations, and building condition all feature more prominently. A residential lender rarely asks for a Phase I environmental report. A commercial lender funding a former industrial unit will require one as standard.
The borrower documentation is more complex because commercial borrowers are typically corporate entities with layered structures. Each layer needs documenting — the SPV, the holding company, the guarantors, and the ultimate beneficial owners.
Finally, commercial mortgage lenders expect a more detailed deal summary. The summary should cover the investment thesis, the tenant profile, the income sustainability, the asset management plan, and the exit strategy. A two-paragraph summary that works for a residential remortgage will not satisfy a commercial credit committee.
What is the most common reason commercial mortgage submissions get sent back?
Incomplete tenant covenant documentation. Brokers include the leases and the rent roll but forget the tenant accounts. The lender cannot assess income security without understanding whether the tenant can continue to pay. This single gap generates more follow-up questions on commercial mortgage submissions than any other item.
The second most common gap is the corporate structure. If the lender cannot see who ultimately owns and controls the borrowing entity, the deal does not progress. Draw the structure, include the filings, and document every entity and individual in the chain.
A complete commercial mortgage pack is larger than a residential pack, but it is not harder to assemble if you know what the lender needs before you start collecting. Build the checklist from the lender’s perspective — property, tenant, income, borrower, legal — and work through each category systematically. The brokers who do this submit once and close. The brokers who do not submit twice and chase.