Get peace of mind from experienced property specialists
- 1-5 year leases available
- Get paid even if your property is empty
- No hassle fully managed service
- 0% Management fee
- 1-5 year leases available
- Get paid even if your property is empty
- No hassle fully managed service
- 0% Management fee
More than housing management
We deliver excellence across the spectrum of property investment and its support infrastructure
Become a Grand Master of property letting
Letting out a property can come with unexpected challenges — from complex legislation to difficult tenants and unreliable income — all of which can quickly eat into your profits and add unnecessary stress. If you’re new to the buy-to-let market, Theori can help you start with confidence and build a more secure, successful investment.
Theori’s Guaranteed Rent Scheme removes the uncertainty. We take care of everything, from compliance and tenant management to ensuring your rent is paid on time, every time. Our fully managed service has grown to become one of the largest in the South East because we deliver dependable income, expert support, and competitive returns — giving you complete peace of mind.
Theori operates one of the largest guaranteed rent schemes in the South East
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You might ask…
Are there any bills or fees that I have to pay instead of the occupier?
No. Under Theori’s leasing model, landlords do not pay the occupier’s day-to-day utility bills or tenant-related charges. Theori also does not charge a standard management fee for the service, unlike many traditional letting agents. Note however, that Landlords remain responsible for their own mortgage payments, buildings insurance, lender/freeholder notifications where required, structural repairs, and any compliance obligations agreed under the lease.
Do I have to furnish the property?
No. Properties do not need to be fully furnished. Theori will normally require the property to be clean, safe, compliant and supplied with suitable white goods, such as a cooker/oven and fridge freezer, with any additional appliances agreed during onboarding.
What happens if the tenant damages the property?
Theori will deal with occupier-related issues during the lease term. Where damage is confirmed as malicious damage caused by the occupier, Theori will cover the loss in line with the lease terms and agreed inventory/condition record. This does not include fair wear and tear, pre-existing defects, structural items or landlord responsibilities.
Are tenants allowed to decorate the property?
No. Occupiers are not permitted to decorate, alter or make changes to the property without written permission. This helps protect the landlord’s asset and ensures the property can be managed and handed back in line with the agreed lease terms.
Are tenants allowed pets?
No. Pets are not permitted as standard under Theori-managed arrangements. This helps reduce the risk of nuisance, additional wear and tear, damage to flooring or furnishings, and issues in blocks or shared accommodation settings.
Why landlords choose Theori
Landlords receive agreed rent in line with the lease, without the usual uncertainty of void periods or occupier non-payment.
Theori manages the day-to-day occupier relationship, property inspections, repairs coordination and local authority liaison.
Unlike many traditional letting agents, THM does not charge landlords a monthly management fee under its guaranteed rent model.
Theori works with a wide network of local authority partners across London and the South East, helping landlords access a more structured and professionally managed letting route.
Whether you own one property or a larger portfolio, Theori provides a practical, lower-hassle alternative to direct private letting.
Some of our partners

























