GS Renovation fits bathrooms in Dartford, including the work behind the tiles: the drainage, the first fix, the waterproofing and the making good. A bathroom put in a new position, or added to a house that is going to be let, raises questions a straight replacement does not. Abdelaaziz Saaid brings over 30 years of hands-on experience, and quotations are free and carry no obligation.
Adding bathrooms for a Dartford HMO now needs planning permission
The permitted development right has been withdrawn north of the A2. Dartford Borough Council resolved at full Council on 8 December 2025 to bring into force immediately an Article 4 direction for houses in multiple occupation covering that area. The direction was confirmed by full Council on 23 February 2026. Adding en suites to a house there in order to let it as an HMO now sits behind a planning application.
South of the A2 the date is later. That direction was confirmed on 23 February 2026 and takes effect on 10 December 2026. From then, planning permission is required to convert a house into a house in multiple occupation for up to six occupants. If that is the plan for the property, the consent question comes before the bathroom specification.
Drainage in Dartford is treated as a flood risk question
The council's own evidence base treats it that way. The Dartford Strategic Flood Risk Assessment identifies surface water, groundwater and sewer flooding as potential sources of flood risk in the borough, alongside fluvial and tidal flooding. A new bathroom adds fixtures to a drainage system that was sized for fewer of them, so where it connects matters as much as what it connects to.
We look at the run before agreeing the layout. Falls, vent positions, the route to the existing stack and whether a pump is needed all decide where a shower or a WC can sensibly go. Moving a soil connection is the expensive part of a bathroom. It is better priced honestly at the survey than discovered under the floor once the room is stripped.
Owner occupied and rented bathrooms are specified differently
The difference is in what the room has to survive. The Dartford Plan to 2037 records 2021 census data on tenure in the borough. Owner occupied and mortgaged properties make up approximately two thirds of the housing stock, with private rented at 18.1 per cent and social rented at 13.8 per cent. What lasts in a family bathroom is not the same as what lasts in one used by a succession of tenants.
Waterproofing is where we would not economise either way. Tanking behind a shower, correct falls to the waste and a properly sealed junction between tray and wall are what stop a leak reaching the ceiling below. Tiles and taps are visible and easy to change later. The layer behind them is neither, so it gets specified first and it stays specified.
- Notifiable bathroom electrics certified under Part P
- Underfloor heating and heated towel rails
- Tanking membranes and waterproof boards behind tiles
- En-suite creation in bedrooms and loft rooms
- Ventilation and extraction ducted to outside
Trusted Bathroom Renovation in Dartford
Bathrooms fail in the parts you cannot see. GS Renovation prices the drainage, the first fix and the waterproofing as part of the job rather than as extras found halfway through. Where a new bathroom means cutting joists or forming an opening, the engineer we appoint designs it and Dartford Borough Council building control is notified. One team carries out the strip out, the pipework, the tiling and the making good. Abdelaaziz Saaid is your point of contact, and we are fully insured.
- Pipework pressure and leak tested before tiling starts
- Registered in England, Companies House no. 14611254
- Site left safe and secure at the end of every day
- Floors checked and stiffened before large-format tiles go down
- Founder-led team with 30+ years of hands-on experience
- A written scope and programme agreed before work starts