House Extensions Tring

An extension in Tring is decided by two things: where the conservation area boundary runs, and what Dacorum Borough Council needs before it will validate the application. We appoint the structural engineer, build to the calculations, and coordinate the building control applications and inspections. Quotations are free and without obligation.

For Tring, on London-derived ranges a single-storey rear extension typically starts from £40,000, or £2,000 to £2,800 per m²; Hertfordshire work generally runs below that. GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Tring: the structural engineer we appoint designs the structure, we build it, and building control signs it off.

What needs planning permission inside the conservation area

More than outside it. Inside Tring conservation area, planning permission is required for any extension that would extend beyond a wall forming a side elevation of the original house. It is also required for any extension of more than one storey that would extend beyond the rear wall of the original house. Total or substantial demolition of an unlisted building over 115 cubic metres needs planning permission for relevant demolition as well; the appraisal still uses the pre-2013 name for it.

Outside the boundary, national permitted development rights apply in the ordinary way. Establishing which side of the line your house sits on is the first useful thing to do.

Housing in Tring

The Council Tax list puts Tring at about 7,420 homes, 12% flats against 88% houses; 20% went up before 1919, 6% between the wars and 73% after 1945. A rear extension on a terrace in Tring digs foundations close to both neighbours, so notices to both are normal, and 31% of homes here are terraced.

What Dacorum needs before an application is validated

The national list, plus the levy forms. Dacorum Borough Council states that it does not currently have any additional local validation requirements, so a planning application follows the national list published on the Planning Portal. It also states that Community Infrastructure Levy additional information forms must be included with the application, and that applications submitted without them will not be validated.

Trees carry their own notice period. The appraisal says that in most cases six weeks notice must be given to Dacorum before cutting down, topping, lopping or uprooting a tree inside the conservation area. The appraisal gives the threshold as 100mm in diameter, but the statutory figure is 75mm, measured at 1.5 metres above ground, so work to that. That is worth checking against the position of the extension before a programme is agreed.

How much listed and recorded fabric surrounds the site

Historic England's National Heritage List records 56 list entries within 800 metres of Tring town centre, of which 53 are Grade II, two are Grade II star and one is Grade I. Dacorum has identified twenty buildings of local importance inside the conservation area, counting a terrace or group as one entry. Hertfordshire County Council's Historic Environment Record lists 53 entries within the conservation area, the first of which covers the medieval and later town of Tring as a whole.

There are no scheduled monuments in the conservation area or in the town. The nearest are sections of Grim's Ditch, which Historic England maps to the south of the town centre near Hastoe. None of this stops an extension, but a listed neighbour can shape what is acceptable next door, and that is a conversation to have at design stage.

Green Belt, the Chilterns and the lie of the land

Neither designation reaches the bulk of the town's housing. The national planning data register returns no Chilterns National Landscape entity at the High Street, King Street or Miswell Lane. It does return the Chilterns designation, reference 5 with a start date of 1 March 1990, at Tring Park immediately south of the town, along with a Dacorum Green Belt entity at the same point.

Tring sits in a break in the Chiltern Hills known as the Tring Gap, at about 100 metres above sea level, with land rising gently to the east and west and sloping gradually from north to south. A sloping plot changes foundation depth and drainage falls, and the engineer sets both before we price the groundworks.

Kitchen extensions in Tring

56% of the houses in Tring are semi-detached or detached, which usually leaves room for a kitchen extension across the full rear width, with a steel beam over the opening into the house. The fit-out is priced on its own page, kitchen renovation in Tring; the build figures are in the table above.

Side return extensions in Tring

31% of homes in Tring are terraced houses and 20% of all homes were built before 1919; side returns are found on the older terraces, beside the back addition. A side extension is not permitted development in a conservation area, and elsewhere is limited to one storey, 4 metres high and half the house's width, so many go to Dacorum Borough Council as an application. Our side return extension page covers the build in detail, with build rates of £2,400 to £3,200 per m².

Double storey extensions in Tring

Under permitted development a two-storey rear extension can go no more than 3 metres beyond the original rear wall and must stay at least 7 metres from the rear boundary, and in a conservation area it is not permitted development at all. Many gardens are too short for the 7 metre rule, so a double storey extension in Tring often needs planning permission from Dacorum Borough Council. With 49% of homes here semi-detached or detached, the side of the house is often an option too. Our double storey extension page explains the build, at £1,800 to £2,600 per m² across both floors.

• Flat and pitched roofs with rooflights or lanterns
• Levels, drainage and landscaping made good around the new build
• Side-return and rear extensions

VOA Council Tax stock of properties, March 2025, for Tring North, Tring East, Wigginton & Aldbury and Tring West & Long Marston. Counts rounded by the VOA.

Plenty of Tring projects start with one job and grow, so it helps to see RSJ and steel beam installation in Tring, house extensions in Berkhamsted, double storey extensions, party walls and extensions, how we handle house extensions across London and Party Wall Act Explained.

Why Tring Homeowners Choose GS Renovation

Extensions here stall at validation rather than at determination. Dacorum states it has no additional local validation requirements, so the national list applies, but it will not validate an application that arrives without the Community Infrastructure Levy additional information forms. We coordinate the building control applications and inspections, appoint the structural engineer, and build to the calculations issued. We do not produce calculations and we are not architects or planning consultants. The quotation is free and without obligation.

• Programme planned around party wall notice periods before excavation near a neighbour
• Aftercare and snagging support once the job is finished
• Garden levels and access made good where the build meets outside

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254). Structural design is by the consulting engineer appointed to your project.