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  • Welcome to

    Site Sage Chartered Building Consultancy

    Providing a fast and friendly service, covering the whole of London and the surrounding counties.

    About Us Services
  • Offering Comprehensive

    Residential & Commercial Building Surveys

    A bespoke service suitable for purchases of all residential and commercial properties.

    Surveys Contact
  • Offering Specialist

    Party Wall Act Advice

    Extensive knowledge of construction, as well as long experience and a thorough understanding of the Act.

    Party Wall Contact
  • A Range of

    Health & Safety Services

    Our skill lies in meeting the necessary statutory requirements effectively, yet minimizing bureaucracy and unnecessary paperwork.

    Health & Safety Contact
  • Expert Witness Reports (CPR 35)

    Expert Witness Reports (CPR 35) - Defendant Work

    Independent, CPR 35-compliant expert reports for defendants: housing associations, councils & insurers. Damp & mould, defects, workmanship, cost analysis, Scott Schedules.

    Expert Witness Contact

Expert Witness Reports for Housing Disrepair and Building Defect Claims

CPR 35 compliant reports for housing associations, local authorities, solicitors and Single Joint Expert appointments. Damp and mould, building defects, Scott Schedules and rebuttals. Inspection within 7 days, report within 14.

Expert Witness Reports

Chartered Building Consultancy for London and Essex
Building Surveys, Party Wall Matters, Damp, Mould and Defect Reports, and Construction Health and Safety for homebuyers, landlords, developers and public bodies.

  • Welcome to Site Sage

Site Sage is a Registered Chartered Building Consultancy based in Harlow, working across London, Essex and the surrounding counties. The practice is run by Dennis Brett MCIOB FFPWS LCGI MPTS, who has worked in construction since 1985.


Most of our work is for solicitors, housing associations and local authorities. We prepare CPR Part 35 expert witness reports and Scott Schedules in housing disrepair and building defect claims, for defendants, claimants and as single joint expert. We inspect within 7 days and report within 14.


We also act as party wall surveyor for building owners and adjoining owners. We prepare schedules of condition and dilapidations, diagnose building defects, damp and mould, carry out building surveys, and act as Principal Designer under CDM 2015.


We are a Corporate Member of the Chartered Institute of Building, the professional body for construction managers and consultants, founded in 1834. We are Fellows of the Faculty of Party Wall Surveyors and Members of the Pyramus and Thisbe Society, the learned society for party wall surveyors.


Every inspection and every report is done by Dennis himself. Clear advice, fair fixed fees and no VAT.

Site Sage Chartered Building Consultancy, Harlow, Essex.

Why Choose Site Sage?

  • Available throughout London and surrounding counties
  • Corporate members of the Chartered Institute of Building (CIOB)
  • Fellow members of the Faculty of Party Wall Surveyors (FPWS)
  • Members of the Pyramus and Thisbe Society
  • Professional, reliable and efficient
  • Fast and friendly service
  • Building Surveys

    Building Surveys

    Building Surveys

    Provide you full building surveys for both commercial and domestic properties throughout London and the Home Counties.

    More Info
  • Party Wall Act

    Party Wall Act

    Party Wall Act

    We have in-depth knowledge of construction as well as extensive experience and a thorough understanding of the Act.

    More Info
  • Access Agreements

    Access Agreements

    Access Agreements

    We specialise in preparing access agreements to enable building owners to carry out maintenance or improvement works.

    More Info
  • Health & Safety

    Health & Safety

    Health & Safety

    Current clients include property developers, architects, main contractors and property management companies.

    More Info
  • Schedules of Dilapidation

    Schedules of Dilapidation

    Schedules of Dilapidation

    Available for existing premises where the lease has expired or been terminated or renewed.

    More Info
  • Schedules of Condition

    Schedules of Condition

    Schedules of Condition

    We provide a Schedule of Condition for the acquisition of commercial leasehold premises reducing any future liabilities.

    More Info
  • Defects Diagnosis

    Defects Diagnosis

    Defects Diagnosis

    Site Sage will survey isolated building defects upon request, such as structural cracks, sagging roofs, dampness, insect attack etc.

    More Info
  • Expert Witness - defendants

    Expert Witness - defendants

    Expert Witness - defendants

    Now offering Expert Witness reports for defendants (housing associations & councils).

    More Info
View All FAQs

All Our Details

Telephone: 07793 056226 Email Address: enquiries@sitesage.co.uk Postal Address: 107 Westbury Rise, Church Langley, Harlow, Essex, CM17 9NT Dennis Brett MCIOB FFPWS LCGI MPTS
Registered Chartered Building Consultant
CIOB Corporate Member • Fellow FPWS • Member, Pyramus & Thisbe Society
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