What Bath Building Society does

Bath Building Society (legal name: Bath Investment & Building Society; FCA/PRA Registration Number 206026) is a UK mutual building society founded in 1904 and headquartered at 15 Queen Square, Bath, operating continuously for over 120 years. The Society offers a specialist-focused retail financial services proposition across two product lines: mortgages and personal savings, plus business, charity, and trust deposit accounts. Its mortgage range targets underserved and niche segments that mainstream credit-scoring lenders typically decline, including Buy for Uni (up to 100% LTV with no deposit, Joint Borrower Sole Proprietor structure), Rent a Room (lodger income counted in affordability up to 50% of loan), Credit Repair (adverse credit to 70% LTV), Holiday Let, Retirement Interest Only (55+), Buy to Let, and Self-Build.

The Society runs a hybrid distribution model combining two physical branches in Bath (Wood Street and Oldfield Park), direct telephone advisory with no automated call centres, online banking (Bath Online) plus an iOS/Android mobile app, and a professional intermediary channel supported by a Broker Online portal (Laserfiche) with DocuSign-secured communications and a 0.4%/0.3% proc-fee structure. In 2026 the Society accelerated a digital transformation programme: Sikoia-based AI verification (March), new valuation system (April), Mortgage Intelligence panel onboarding (May), and the first phase of online mortgage origination (July). Revenue is generated primarily through the net interest spread between mortgage lending and member deposits, supplemented by product fees (£999-£2,999), broker commissions, and administrative fees such as early repayment charges and consent-to-let fees; the Standard Variable Rate is 7.24%.

Name

Bath Building Society

Legal name

Bath Investment & Building Society

Website

https://bathbuildingsociety.co.uk

Company type

Private

Founded year

1904

Operating status

Operating

Headcount range

101–250 employees

Short description

Bath Building Society is a 120-year-old UK mutual building society offering specialist mortgages (Buy for Uni, Credit Repair, Holiday Let, Retirement Interest Only, Buy to Let) and retail savings accounts to consumers across England, Wales, and Scotland, distributed through Bath branches, digital channels, and an intermediary broker panel.

Ownership category

akta.pro rank

Headquarters

HQ city

Bath

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Mortgage lending interest: Primary revenue from interest charged on mortgage loans including residential, buy-to-let, student/Buy for Uni, retirement, credit repair, holiday let, and self-build mortgages
2. Savings account interest spread: Revenue generated from the spread between interest paid to savers and interest earned on mortgage lending. Includes personal savings, business accounts, charity accounts, trust accounts, and ISA products
3. Mortgage product fees: Product fees charged on mortgage completion ranging from £999 to £2,999 depending on product type (individual vs limited company)
4. Broker proc fees: Commission paid by Society to intermediaries: 0.4% for new business, 0.3% for product transfers
5. Mortgage administration fees: Various fees including early repayment charges, funds release fee (£25), change of term (£50), change of borrower (£100), consent to let (£50), closing fee (£100), and solicitor/field agent costs for arrears cases

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels6 records

Core offering

Bath Building Society provides residential, buy-to-let, holiday let, self-build, student (Buy for Uni), retirement interest-only (RIO), credit repair and rent-a-room mortgage products, alongside personal savings accounts (Lifetime ISA, regular savers, instant access, fixed rate bonds, notice and children's accounts) and business, charity, trust, pension and client savings accounts. Distribution is delivered through Bath branches, Bath Online, a mobile app, telephone banking and the intermediary broker channel.

Product overview

Bath Building Society offers a comprehensive suite of financial products centered around mortgages and savings. Their mortgage portfolio includes specialized niche products: Buy for Uni (student mortgages with Joint Borrower Sole Proprietor), Rent a Room (lodger income mortgages), Credit Repair (adverse credit mortgages), Buy to Let, Holiday Let, Retirement Interest Only (RIO), Residential, and Self-Build mortgages. Their personal savings range includes Lifetime ISA, Regular Savers, Instant Access, Fixed Rate Bonds, Notice Accounts, and Children's accounts. Business services include accounts for sole traders, charities, and professional organisations. Digital services include Mobile App and Bath Online for account management, plus Mortgage Selection Tool and Affordability Calculator for customer guidance. The society recently launched online mortgage applications and AI-powered verification using Sikoia technology.

Differentiator

Problem solved

Functional benefit

Products and services

• Mortgages Range of mortgage products including residential, buy-to-let, holiday let, student/Buy for Uni, Credit Repair, Rent a Room, Retirement Interest Only (RIO), and Self-Build mortgages, served with a Mortgage Selection Tool and Affordability Calculator. Targeted at first-time buyers, students, retirees, landlords, holiday let investors, customers with adverse credit, and those using lodger income.
• Buy for Uni Mortgages Student mortgages allowing purchase of property while studying at university, using a Joint Borrower Sole Proprietor arrangement where parents are joint borrowers but not on the deeds. Allows rental income for affordability and up to 100% LTV with no deposit required. Maximum loan £500,000.
• Rent a Room Mortgages Mortgages up to 100% LTV where expected rental income from lodgers counts towards affordability calculations. Earn up to £7,500/year tax-free from letting furnished rooms. Rent a Room income can cover up to 50% of the loan amount in affordability.
• Credit Repair Mortgages Mortgages for customers with adverse credit history. Higher tolerance for defaults, CCJs and arrears. Rates and charges are higher due to perceived risk. Helps customers rebuild credit ratings. Up to 70% LTV; minimum 30% deposit.
• Buy to Let Mortgages Buy to Let and Limited Company Buy to Let mortgages for investment property purchases. Available as variable and fixed rate options. Rental income must cover 125–145% of stressed mortgage payments. Up to £500K at 80% LTV and up to £2M at 70% LTV.
• Holiday Let Mortgages Mortgages for properties rented to holiday makers. Personal use permitted up to 60 days. Properties can be listed on Airbnb during unoccupied periods. Max £1M at 75% LTV, £500K at 80% LTV.
• Retirement Interest Only (RIO) Mortgages Retirement mortgages for borrowers aged 55+ with no set end date. Requires minimum household income of £20,000. Allows borrowing up to 50% LTV (max £500,000). Offers a lifetime discount variable rate for peace of mind.
• Residential Mortgages Standard residential mortgages with a minimum 5% deposit, available up to 95% LTV. Includes Joint Borrower Sole Proprietor feature for family assistance without adding owners to the deeds. Increased borrowing available for energy-efficient homes with EPC rating A.
• Personal Savings Range of personal savings accounts including Lifetime ISA, Regular Savers, Instant Access, Fixed Rate Bonds, Notice Accounts, and Children's accounts, available via Bath Online and the Mobile App.
• Lifetime ISA Tax-free savings account for first-time buyers. Now accepting transfers in to all Cash ISA products as part of the personal savings portfolio.
• Regular Saver Accounts Regular savings accounts designed for consistent monthly deposits, part of the personal savings range.
• Instant Access Savings Accounts Easy access savings accounts including new Limited Access accounts, providing immediate access to funds at competitive rates.
• Fixed Rate Bonds Fixed term savings accounts with locked-in competitive rates; terms available for various periods.
• Children's Accounts Savings accounts designed for children, part of the personal savings portfolio.
• Notice Accounts Savings accounts requiring advance notice for withdrawals, part of the personal savings portfolio.
• Business, Professional & Charity Accounts Business savings accounts for sole traders, charities, partnerships, and incorporated organisations. Includes Business Instant Access, Business Notice, Business Fixed Term, Charity, Trust, Pension, and Client accounts.

Quantifiable outcome

• Up to 100% LTV available for Buy for Uni and Rent a Room products with no deposit required
• +3 more outcomes

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability2 records

Feature4 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Mortgage IntelligencecoreChannel Partner/ Reseller/ Distributor · 14 May 2026Bath Building Society officially joined the Mortgage Intelligence lender panel to enhance the range of specialist mortgage solutions available through the intermediary network.
• Dormant Assets SchememinorOthers · 1 May 2026Bath Building Society joined the Dormant Assets Scheme, which reunites customers with unclaimed assets across the financial services sector.
• SikoiacoreTechnology or Integration · 6 March 2026Bath Building Society partnered with Sikoia to automate mortgage document handling, income verification, and affordability checks using AI-powered technology. This partnership supports the Society's transition to a fully online mortgage application process.
• Team BathminorStrategic or Co-development PartnerCommunity partnership supporting Team Bath sports and community initiatives. Part of Society's commitment to investing back into the local Bath community.
• WizeUp Financial EducationminorStrategic or Co-development PartnerPartnership with WizeUp Financial Education to deliver financial education workshops to primary schools in Bath as part of the Society's community financial education programme.
• DocuSigncoreTechnology or IntegrationDocuSign is used as the secure means of sending broker communications, including Decision in Principle and mortgage application information, with Two-Factor Authentication for enhanced security.
• Julian HouseminorOthersJulian House was chosen by Members as Bath Building Society's Charity of the Year for 2025 through member voting process.
• Buildstore Mortgage ServicesminorStrategic or Co-development PartnerPartnership with Buildstore Mortgage Services for self-build mortgage products, helping people who want to build their own home.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Regional players

• West Bromwich Building Society: West Midlands mutual building society with a focus on savings-funded mortgage lending including specialist segments. Comparable in scale and mutual governance structure.
• Cumberland Building Society: Cumbria-based regional mutual building society offering mortgages and savings. Comparable in size, mutual structure, and community-focused regional banking model to Bath BS.
• Newcastle Building Society: North East England regional mutual building society offering residential, buy-to-let, and savings products. Comparable regional mutual model with a similar branch-plus-intermediary distribution approach.
• Nottingham Building Society: Mid-sized UK mutual building society offering residential and buy-to-let mortgages alongside savings. Similar size band and product mix make it a useful peer for unit economics benchmarking.
• Principality Building Society: Welsh regional mutual building society with a similar specialist mortgage focus and geographic concentration outside the M25. Comparable mutual model and regional strategy, though operating in a different UK region.

Direct peers

• Skipton Building Society: UK mutual building society offering a broad mortgage and savings range, with strong specialist products including buy-to-let and later-life lending. Closely comparable mutual structure and product breadth make Skipton the most directly comparable peer to Bath BS.
• Coventry Building Society: Mid-sized UK mutual building society with a strong savings franchise and mortgage lending including specialist segments. Similar mutual structure and mix of savings-funded mortgage lending make it a close peer.
• Leeds Building Society: UK mutual building society with a notable presence in specialist mortgage segments including complex income, self-build, and holiday let lending. Directly comparable specialist product mix.
• Yorkshire Building Society: One of the largest UK mutual building societies, offering residential, buy-to-let, and savings products through branches and intermediary channels. Comparable mutual model and reliance on broker distribution make it a strong comparable for Bath BS.

Broad incumbents

• Nationwide Building Society: The largest UK building society and a systemically important mortgage lender. Not a direct niche competitor, but defines the competitive set Bath BS operates within for branch banking, savings, and standard mortgages.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/BathBuildingSociety
• Instagraminstagram.com/bath_building_soc
• Xx.com/BathBuildingSoc
• LinkedInlinkedin.com/company/bath-building-society

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Bath Building Society