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The Commercial Drainage and Water Enquiry is an essential part of the conveyancing process for commercial property and development transactions. It provides the information a commercial buyer needs regarding water and sewerage connections on their property or land purchase and protects them from unnecessary risks and costs in the future. 

The COMMERCIALDW report is created from water company data, ensuring integrity and complete information.  

Backed by a £2 million liability cover, the COMMERCIALDW contains all the information necessary to protect the commercial buyer from unnecessary risks and costs in the future. The criteria for ordering this product varies by water company region. In the Anglian Water region the report covers sites up to two hectares.

For larger developments and high value transactions, please order the COMMERCIALDW Plus.

You can order the COMMERCIALDW from Geodesys for all water companies throughout England and Wales. Please note, however, that other water company areas may offer different variations of the COMMERCIALDW with regard to permitted land size, levels of liability and turnaround times.

Product Details

The COMMERCIALDW includes everything provided by the CON29DW but includes additional details such as consents to discharge trade effluent and details of easements. It comes with a £2 million liability cover. The information in a COMMERCIALDW includes:

Key features

Why is this important?

Details of water and drainage services at the property.

Not all properties are connected – so the occupiers may be reliant on an alternative way of disposing of sewage (eg septic tank) or the commercial purchaser may have to pay costly connection fees to the water company.

Two colour maps of the property or site, separately displaying all known public water and sewerage assets.

Provides a clear picture to the buyer of the proximity of assets.

The location of public water and sewerage assets in the proximity of the property or site, including those subject to an adoption agreement (or applications for adoption).

Commercial buyers need to know this if they are developing a site or planning an extension to existing buildings. There may also be issues around allowing a water company access to these mains or sewers.

Confirmation of whether any agreements or consents to build over public assets are in existence.

If no build over agreement is in place, the water company has the right to access the drain or sewer, disrupting the occupier and the property.

Consents to discharge trade effluent.

Important for industrial purchasers. 

Details of easements.

Easement rights to the property or site may restrict future commercial development. 

Information on internal sewer flooding.

Up-to-date information on whether sewers have flooded previously (due to overloading) can indicate whether there is a likely issue for the buildings or site in the future.

An analysis on the risk of receiving low water pressure.

Certain types of boilers and showers require a minimum water pressure to work.  The occupiers could also experience a sporadic water supply depending on usage in the area.

The location of pumping stations within the proximity of the property.

Private pumping stations installed before July 2011 and serving two or more properties were transferred to Water and Sewerage Company ownership on 1 October 2016. This means that the Company has taken on Rights of Way to access the pump, causing potential disruption when access is required for annual maintenance.

Is there a meter installed?

Confirmation of whether a water meter is at the premises.

Location of any nearby sewage treatment works.

A sewage treatment works in the vicinity can cause unsavoury odours and have an impact on how the buildings or site are used.

An assessment of water hardness.

This information is useful when considering hardness settings for domestic appliances such as dishwashers and washing machines.

  • 23 crucial questions
  • Identifies risk
  • Complete and guaranteed information
  • Consistent approach
  • Expert interpretation
  • Regularly updated
  • £2 million liability