SLM is a friendly, family run business with over 55 years of experience of dealing with properties between the two main partners.

Although our main focus is on being a very personally run estate agency, we also specialise in acting for clients on a one-to-one basis as property finders and are well known for helping individuals find and secure properties on or off the market which suit their requirements.

Whilst we are based on the main High Street in the town centre of Windsor, we love to help find, sell and rent properties for people in all surrounding areas, such as Old Windsor, Egham Englefield Green, Datchet, Winkfield, Ascot, Eton Wick and further afield.

Unlike most estate agents in Windsor, we actually live in Windsor and have personally lived in most of the above areas also. Therefore, we feel we are well qualified to offer sound advice and honestly answer any questions you may have.

We are very knowledgeable in the property field, as we have been dealing with high-end properties in Central London since the 1960’s. We felt that as we have been recently getting increasing enquiries regarding properties on The Wentworth Estate in Virginia Water and the St Georges Hill Estate in Weybridge, now was the perfect time to set us SLM, as a subsidiary company, to deal with these home county enquiries, and that Windsor was the best place for us to open in.

We understand that not everyone is always available during typical working hours, and therefore we offer a very flexible service and are happy to meet at all times, whether that be late at night, early in the morning or on weekends.

We love to help, and our ambition is to have happy clients who love to help us back by recommending our services to others.

Please do not hesitate to call or email us at any time, for anything.

Customer Testimonials

  • Simply the best!
    I wish I had used SLM sooner. After using a couple of high street agencies with no success, a friend recommended Sophie. Sophie and her dad Lance are very knowledgeable and know how to sell a house. They cut through the tyre kickers and time wasters and got us a sale to completion in under two months.
    Martin W. (Vendor) 26/07/2025
  • Exceptional Service
    SLM, goes above and beyond, I have worked with SLM now for over 20 years both purchased and sold properties with this firm. No other agents provide the level of care and service that this team consistently delivers. They have very high quality relationships with both buyers and sellers and they make things happen.
    Sasha (Vendor) 17/04/2025
  • Pleasure to deal with
    Sophie and Lance were both an absolute pleasure to deal with right from the start, all the way through to completion. Very professional. Would highly recommend.
    James 15/09/2023
  • SUPERB EXPERIENCE
    Superb experience dealing with SLM. Professional, courteous and swift to act. Being family run really adds a personal touch and level of service that you won't get elsewhere. Highly recommend.
    D. Cook 06/01/2023
  • THE BEST ESTATE AGENTS WE HAVE DEALT WITH
    Sophie and Lance were probably the best estate agents we dealt with on our journey to buying our house. They were always available to answer our questions and to show us the house on request. I would absolutely recommend them to anyone buying or selling a house!
    K. and S. Chagger 02/12/2022
  • Lance and Sophie offer a very personal service
    We would highly recommend SLM property for selling a property. They found us a buyer very quickly and efficiently, and worked tirelessly to progress the sale. Lance and Sophie offer a very personal service and were easily contactable at all times. If you are looking to sell your house in the Windsor area and beyond, look no further!!
    L. Usherwood 02/12/2022
  • Excellent Service From Sophie & Lance
    Brilliant family duo, work very well together. Lance & Sophie kept us in the loop. Very experienced couple. Would highly recommend them to future sellers. Five stars thank you.
    Dave (Vendor) 20/08/2022
  • Amazing service
    Thank you To the great team Sophie and lance did a great job with my property selling it. Made life easy and stress free Can't thank them enough They took care of everything for me until the end. I'll give them more star rating if I could. Thank you for everything you've done and I'll recommend your company to everyone you deserve it.
    Hanz-on 247 ltd (Buyer) 20/04/2022
  • CAN'T RECOMMEND THEM HIGHLY ENOUGH
    Brilliant, personal service from father and daughter. All problems solved, available almost 24 hours a day! They held my hand through what could have been a difficult time for me and made the whole process bearable and occasionally even enjoyable. Cant recommend them highly enough
    C. Cung 01/03/2022
  • Sophie and Lance are brilliant
    Wonderful estate agents. Lance and Sophie are brilliant.
    Mr A. Naik 01/07/2021

  Read more reviews

Meet The Team

Sophie Potter-Mordant

Sophie Potter-Mordant BA (Hons), ACMI

 01753 852 226

 sophie@slmproperty.com

Having graduated from the University of West London with a first-class degree in Business, Sophie has focussed her attention by working in the sales department for three Major Estate Agencies, all in Windsor Town Centre, where she sold a number of properties of varying styles and prices in local locations. Sophie prides herself on her approachable and friendly business manner, and aims to provide a service that she would like to receive if she herself was looking to acquire or dispose of a property. Having attended The Royal School (in Windsor Great Park), St Georges School Windsor Castle and Wellington College (in Crowthorne) as a student, as well as having worked in her gap years at Bishopsgate in Englefield Green and Brigidine/Queensmead School in Windsor, Sophie has a wonderful understanding and knowledge of the local schooling and is happy to provide any guidance. Additionally, having lived in Englefield Green, Winkfield and now Windsor Town Centre, Sophie considers herself well versed in her familiarity with all surrounding areas and would be more than happy to provide advice or give location information at any time.

Since graduating from Arnold House and Highgate Schools in London, Lance Mordant has focussed all of his professional attention to working in the Central London Property Industry. Following a brief stint at Hamptons, Lance opened his own office in his early twenties in Kings Road Chelsea, and then opened further offices in Belgravia, Fulham and Chiswick whilst other family members ran the three other North London offices, originally opened by Garnet Mordant, Lance’s Father. Lance Mordant has built up a very credible reputation over the years, working on a very personal basis for many private high-calibre clients, and prides himself of his ability to source and negotiate properties on and off the market in a very professional way. Most of Lance’s reputation and business has been created through personal recommendation from one client to another. Having lived in the home countries for the last 20 years, Lance Mordant felt the time was right to further pursue the family vibe and open another office based in Windsor on the High Street, which will be run in the same friendly way as the others, whilst still upholding traditional values. This office will seek to cover all areas surrounding Windsor town centre, however Lance Mordant will continue to operate in Central London in the property sector as well.

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