AIA (Annual Investment Allowance)
UK tax relief permitting 100% upfront tax deduction on qualifying commercial equipment, plant, and machinery up to statutory limits.
Tax, SPV & Structuring
Acorn Knowledge Desk · 60+ Specialist Finance Definitions
Clear, plain-English definitions for property investors, developers, and business owners. Covering BTL, Commercial Mortgages, Development, Bridging, Tax, Planning, and Compliance.
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Showing 79 of 79 definitions.
4 definitions
UK tax relief permitting 100% upfront tax deduction on qualifying commercial equipment, plant, and machinery up to statutory limits.
Tax, SPV & Structuring
A legal mechanism used by local planning authorities to remove specific Permitted Development rights in defined geographical areas (such as city centre office zones or high-density HMO areas). Where an Article 4 Direction is in place, developers must submit a full planning application instead.
UK Planning Use Classes & Development Terms
Rapidly deployed bridging capital designed to complete property purchases within strict 28-day auction deadlines.
Development & Refurb
The average fee charged per bed in care homes or supported living, and a fundamental driver of healthcare business valuations.
Valuations & Metrics
1 definition
A purchase price genuinely below the property's independently verified open market value. A small asking-price discount or refurbishment need does not by itself establish BMV.
Valuations & Metrics
16 definitions
Tax relief allowing commercial property owners to write off the capital cost of qualifying integral plant, fixtures, and fittings against taxable profits.
Tax, SPV & Structuring
Legal mechanisms, such as Section 162 or roll-over relief, that delay CGT liabilities when reinvesting or incorporating assets.
Tax, SPV & Structuring
A short-term regulated loan secured against property that allows a home buyer to complete a purchase when their sale chain collapses.
Development & Refurb
A mandatory charge levied by participating local authorities on qualifying new development floor space to fund local infrastructure.
Planning, Safety & Legal
Industrial processes other than those falling within Class E (light industrial). Covers heavier manufacturing, engineering, and industrial operations.
UK Planning Use Classes & Development Terms
Facilities used for storage or distribution, including general warehouses, logistics hubs, and self-storage centres.
UK Planning Use Classes & Development Terms
Hotels, boarding houses, and guest houses where no significant care is provided.
UK Planning Use Classes & Development Terms
Care homes, hospitals, nursing homes, boarding schools, residential colleges, and secure residential accommodation.
UK Planning Use Classes & Development Terms
Standard residential use for single households, families, or up to 6 residents living together as a single household receiving care. This includes single-family residential houses and individual self-contained flats/apartments.
UK Planning Use Classes & Development Terms
Use of a dwellinghouse by 3 to 6 unrelated residents who share basic amenities such as a kitchen, bathroom, or living area as their main residence.
UK Planning Use Classes & Development Terms
Introduced in September 2020, Class E combines former commercial categories into a single flexible class. It covers retail shops, financial & professional services, restaurants, cafes, office spaces, medical surgeries, creches, indoor sport/gyms, and light industrial uses. Properties in Class E can generally switch between these uses without requiring full planning permission.
UK Planning Use Classes & Development Terms
A planning sub-class covering office space, research and development, and light industrial processes compatible with residential areas.
UK Planning Use Classes & Development Terms
Schools, universities, museums, art galleries, public libraries, places of worship, and law courts.
UK Planning Use Classes & Development Terms
Shops under 280 sq m meeting local daily needs, community halls, outdoor sport/recreation areas, and swimming pools.
UK Planning Use Classes & Development Terms
A specific Permitted Development right introduced in 2021 that permits the change of use from Class E (commercial) to Class C3 (residential flats/houses), subject to local authority Prior Approval.
UK Planning Use Classes & Development Terms
The Care Quality Commission grade — Outstanding, Good, Requires Improvement, or Inadequate — which can directly affect healthcare commercial mortgage terms.
Commercial & Specialist Property
3 definitions
A lower-cost bridging loan used to clear expensive construction debt once practical completion is reached, allowing more time for sales or refinancing.
Development & Refurb
An accounting ledger tracking net funds lent to or borrowed from a company by its directors, potentially enabling tax-free capital extraction after incorporation.
Tax, SPV & Structuring
Net operating income divided by annual debt repayments. Lenders typically look for a minimum ratio between 1.20x and 1.35x.
Formula: net operating income ÷ annual debt service.
Valuations & Metrics
4 definitions
Earnings Before Interest, Taxes, Depreciation, and Amortisation. It is a core metric used to calculate going-concern commercial property values.
Valuations & Metrics
A safety report certifying the condition of electrical wiring and fixed installations in commercial and rented residential properties.
Planning, Safety & Legal
Energy Performance Certificate and Minimum Energy Efficiency Standards regulating legal minimum efficiency ratings — currently Band E, with commercial targets moving towards Band B.
Planning, Safety & Legal
An External Wall System fire-safety assessment used by lenders for certain multi-storey residential blocks with cladding.
Planning, Safety & Legal
3 definitions
Factoring includes outsourced credit control where the lender collects debt; Invoice Discounting can remain confidential, keeping billing and collection in-house.
Business & Cashflow
The sustainable net trading profit a reasonably efficient operator can achieve from a trading asset such as a pub or hotel.
Valuations & Metrics
A commercial lease where the tenant bears total financial responsibility for external and internal repairs, maintenance, and building insurance.
Commercial & Specialist Property
4 definitions
The statutory annual safety check required for gas appliances and flues in rented accommodation.
Planning, Safety & Legal
The total projected end market value of a property development once all construction works are fully completed.
Valuations & Metrics
Net Loan is the cash amount received in hand; Gross Loan is the total facility including rolled-up or retained interest, arrangement fees, and broker fees.
Valuations & Metrics
Gross Yield is annual rental income divided by purchase price. Net Yield subtracts operational expenses such as ground rent, service charges, and maintenance before calculating.
Valuations & Metrics
1 definition
A residential property let to three or more tenants forming more than one household who share amenities such as kitchens or bathrooms.
Commercial & Specialist Property
1 definition
A calculation used by BTL lenders to ensure gross rent covers interest costs at a stressed rate — typically 125% for SPVs and 145% for personal names.
Formula: gross annual rent ÷ stressed annual interest × 100.
Valuations & Metrics
4 definitions
Legal enquiries made to local councils during conveyancing to check planning history, highway adoption, environmental risks, and local burdens.
Planning, Safety & Legal
The proportion of total project costs — land purchase, build costs, and professional fees — funded by a development lender.
Formula: lender funding ÷ total project costs × 100.
Valuations & Metrics
The percentage of total senior development debt compared to the estimated final market value of the completed scheme.
Formula: senior development debt ÷ gross development value × 100.
Valuations & Metrics
The ratio of the mortgage amount borrowed relative to the appraised market value of the property, expressed as a percentage.
Formula: loan amount ÷ property value × 100.
Valuations & Metrics
5 definitions
The additional economic value unlocked when combining two connected interests, such as merging a sitting tenant's operating lease with the freehold.
Commercial & Specialist Property
Working capital advanced against future credit and debit card sales, repaid through an automatic percentage sweep of daily point-of-sale receipts.
Business & Cashflow
An independent chartered surveyor appointed by the lender to inspect initial development plans and verify ongoing construction drawdowns.
Development & Refurb
Predictable, contracted subscription or retainer income used to support non-dilutive business funding lines.
Business & Cashflow
A single freehold property containing multiple self-contained residential flats on one title without individual leaseholds.
Commercial & Specialist Property
1 definition
Recourse debt allows lenders to claim personal or corporate assets outside the collateral; Non-recourse limits recovery strictly to the pledged asset, subject to agreed carve-outs.
Planning, Safety & Legal
4 definitions
The inspection grade for educational facilities and children's care homes that can influence lender appetite and interest-rate margins.
Commercial & Specialist Property
The estimated price a property would sell for on the open market between a willing buyer and seller in an arm's-length transaction.
Valuations & Metrics
A corporate model separating trading operations in an operating company from physical property assets in a property company to ring-fence risk and optimise tax.
Tax, SPV & Structuring
An election made to HMRC by a commercial property owner to charge 20% VAT on rents and sales, allowing recovery of qualifying input VAT on expenses.
Tax, SPV & Structuring
6 definitions
Alternative corporate financing using pension assets, including qualifying loanbacks or intellectual-property purchases, to fund business growth without conventional high-street debt.
Business & Cashflow
A national grant of planning permission that allows specific building works or changes of use to take place without submitting a full planning application.
UK Planning Use Classes & Development Terms
A legal commitment signed by business directors agreeing to personally repay corporate debt if the company defaults.
Planning, Safety & Legal
Outline permission approves the general development concept in principle; Full permission provides detailed architectural and engineering approval.
Planning, Safety & Legal
The formal contractual stage where construction works are substantially completed and the building is ready for occupation or handover, aside from minor defects.
Development & Refurb
A streamlined planning assessment where the local authority evaluates specific technical impacts of a Permitted Development scheme (such as transport impact, flood risk, contamination, noise insulation, daylight standards, and fire safety) within a statutory 56-day window.
UK Planning Use Classes & Development Terms
5 definitions
A reusable credit limit that can be drawn, repaid and redrawn as cash flow requires, with interest charged only on the balance in use.
Business & Cashflow
An official property valuation conducted by an independent RICS registered valuer adhering to formal professional and regulatory standards.
Valuations & Metrics
Short-term loan interest calculated for the full term and deducted upfront from the gross advance, meaning zero monthly payments during the loan term.
Valuations & Metrics
A percentage of development drawdowns, typically 5%–10%, withheld by the lender or developer until the defects liability period expires.
Development & Refurb
Interest added to the loan balance monthly and compounded, with the total balance settled in full upon exit or refinance.
Valuations & Metrics
12 definitions
Specific Stamp Duty Land Tax provisions that can mitigate or reduce SDLT when transferring genuine property partnerships into corporate structures.
Tax, SPV & Structuring
The tax payable on purchases of property and land in England and Northern Ireland. Rates differ for residential, non-residential and additional-property purchases; confirm liabilities with a solicitor or tax adviser.
Tax, SPV & Structuring
A legally binding planning deed requiring developers to contribute towards local infrastructure, affordable housing, or community amenities.
Planning, Safety & Legal
Tax relief allowing landlords transferring an active property business into a Limited Company SPV to defer Capital Gains Tax.
Tax, SPV & Structuring
UK tax legislation restricting individual landlords from deducting mortgage interest from rental income before calculating Income Tax.
Tax, SPV & Structuring
Standard monthly interest payments made by the borrower throughout the term of the loan.
Valuations & Metrics
The Companies House classification for ‘Renting and operating of own or leased property’, commonly used for specialist Limited Company SPV BTL mortgages.
Tax, SPV & Structuring
Raising funds against one selected unpaid invoice, or a small batch, rather than committing the whole sales ledger to a facility.
Business & Cashflow
A soft credit search leaves no visible footprint to other lenders; a hard credit search records a formal enquiry on the applicant's credit file.
Planning, Safety & Legal
A legal facility allowing a SSAS pension scheme to lend up to 50% of its net fund value back to the sponsoring employer as secured capital, subject to HMRC rules.
Business & Cashflow
Legal provisions allowing a lender to assume control of a development project if the borrower defaults or the developer becomes insolvent.
Development & Refurb
Latin for “of its own kind.” Refers to property uses that do not fit into standard Use Classes due to their operational impact, noise, or public footprint. Examples include: • Large HMOs (7 or more unrelated occupants) • Public houses, wine bars, and drinking establishments • Hot food takeaways (where consumption is mostly off-site) • Cinemas, music venues, dance halls, and bingo halls • Scrap yards, fuel stations, and car showrooms
Lender Note: Converting a property into or out of a Sui Generis use almost always requires full planning permission and specialised underwriting.
UK Planning Use Classes & Development Terms
3 definitions
Official Land Registry documents proving legal property ownership and listing registered mortgages, burdens, notices, or restrictions.
Planning, Safety & Legal
The legal division of a single freehold property into individual leasehold titles, often used to unlock a higher combined market value.
Commercial & Specialist Property
An HMRC provision permitting commercial property with sitting tenants to be transferred without charging 20% VAT, subject to specific conditions.
Tax, SPV & Structuring
1 definition
The market value of a commercial property assuming it is entirely unencumbered by leases or occupying tenants.
Valuations & Metrics
1 definition
The average remaining duration of leases across a commercial property portfolio, weighted by rental income.
Commercial & Specialist Property
Acorn.finance is a specialist credit broker authorised and regulated by the FCA (#660207), not a tax advisory firm, law firm, or accountant. Definitions in this glossary are provided for educational purposes and general guidance only. Lending criteria, tax legislation (including SDLT, Section 24, and Capital Allowances), and planning regulations evolve over time. Always seek independent advice from a qualified chartered accountant, solicitor, or IFA before executing transactions.
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