Estate Agents for Property Lettings and Sales in Marylebone, London

O’Sullivan Property is a leading real estate agent based in Marylebone, central London. We mainly deal with residential property lettings, property management and offer advice to our clients for purchasing both residential and investment properties.

You can find us in Central London at 96 Seymour Place, London, W1H 1NB, right at the heart of one the poshest residential areas in London.

Being one of the best estate agents in Marylebone, London, we have a dedicated team of staff who possess both experience and knowledge to provide you with industry leading services and ensure greater value for your money.

Our hardworking Marylebone letting agents will try to ensure that our client get top-rated service, despite unparalleled transparency. We offer a wide range of services which consists of:

  • Residential Sales
  • Residential Lettings
  • Short Term holiday rentals
  • Property Valuations
  • Portfolio Management
  • Block Management

What's your property worth

Looking to find out what your property is worth or what your rent yield could be? Get in touch for a free, no obligation valuation instantly or better still, carried out by one of our Marylebone based Estate Agents in Central London.


Looking to sell your property?

With most of our business stemming from recommendations, our London based clients know we offer a completely transparent property consultation service and go the extra mile when it comes to selling your most prized asset.


Looking to rent your property?

We understand that every landlord has individual requirements and no two tenancies are ever the same. You can be sure our letting agents are highly experienced and are happy to guide you through the process with minimal fuss.