Property Investment
The True Cost of a UK Buy-to-Let: Every Line Item to Budget For
A practical breakdown of the upfront, ongoing and exit costs of a UK buy-to-let, from stamp duty surcharges to voids, maintenance and tax.
8 min read
The landlord & tenant app · England
Run your rentals from one calm workspace.
Repairs, inspections, inventories, documents and records for self-managing landlords — with free access for tenants.
Preview only — accounts, billing and real data are not live yet.
What the app does
Built for landlords and tenants
For landlords
See what needs attention, track repairs and contractors, and keep receipts and records per property.
Open the landlord demoFor tenants
Report repairs, confirm visits and see documents your landlord shares. Always free for tenants.
Open the tenant demoInteractive inspections
Room-by-room inventories, check-in, mid-tenancy and check-out with side-by-side comparison.
Try an inspectionYour own reports
Create documents in the app and download or print the reports you made — no separate template packs.
Create a document
Demo features use fictional records. Reports are illustrative, not legal documents. England only.
Start here
Choose your pathway
For self-managing landlords · England
Landlord Workspace
Stage 1 demo · fictional properties · compliance requires verification
About
Architecture meets property investment
Sapphire is led by Sabreena, an architectural designer of 22+ years, property investor and self-managing landlord. The aim here is simple: share structured, practical knowledge so you can make better decisions.
On YouTube
Sapphire Property Investments & Ventures
Follow real property journeys — buying, renovating, renting and selling — seen through a designer's and landlord's eyes.
The guide library
Explore the guides
Property Investment
Rental Yield vs ROI: Which Number Actually Tells You If a Deal Works?
How gross yield, net yield, cash-on-cash return and ROI differ, how to calculate each, and why comparing them properly matters for UK property investors.
7 min read
Property Investment
Property Due Diligence Checklist for UK Investors
A structured due diligence checklist covering location, legal title, building condition, planning, lettability and finance before you buy a UK investment property.
9 min read
Property Investment
HMO Considerations: Licensing, Planning and Practicalities
What UK investors should understand before buying or converting a house in multiple occupation: definitions, licensing, Article 4, fire safety and management.
8 min read
Landlord Resources
Landlord Compliance in the UK: The Core Obligations Checklist
An overview of core UK landlord legal obligations — gas and electrical safety, EPCs, deposits, alarms, Right to Rent and tenancy reforms — with links to official guidance.
9 min read
Landlord Resources
Rental Property Maintenance: A Planned, Preventative Approach
How UK landlords can plan rental property maintenance — seasonal checks, repair responsibilities, reserves and record keeping — to protect tenants and the asset.
7 min read