Yes, and in Sheering the ground beneath an extension is more likely to slow you down than the conservation officer. Seventeen buildings are listed. The area measured here has no conservation area. Most homes are ordinary houses on ordinary rules. The ground is clay that moves, and that is the bit to take seriously.
Historic England lists 17 buildings in the area: one at Grade I, one at Grade II* and 15 at Grade II. Listing covers the inside as well as the outside, so on those 17 a new window, a removed wall or a replacement staircase needs listed building consent on top of any planning permission, and doing the work without it is a criminal offence, not merely a planning dispute. Lower Sheering, the edge of the parish beside Sawbridgeworth, has a conservation area of its own. Across the rest of the area measured here there isn't one, which takes away the extra controls such an area places on demolition, trees and the look of a house from the street. If you own one of those 17 houses, you'll need consent for almost any change. Everyone else has far fewer hoops to jump through.
Planning records for the area log 1,060 applications between April 2024 and June 2026, 507 of them in the last twelve months. Those are applications made, and they reveal nothing about how many were approved. They do show that people here keep putting plans in.
The British Geological Survey rates shrink-swell clay at class 3 across all of Sheering's postcodes, a published hazard class meaning ground that swells when wet and shrinks when dry enough to matter for foundations. In practice that means deeper footings than on sandy ground, building control taking an interest, and nearby trees affecting the design because roots dry the clay out. Have a structural engineer look at the soil and any large trees near the proposed footprint while the extension is still a sketch. Here the clay has more say over your foundations than the council has over how the house looks.
For a house that is neither listed nor in a conservation area, many single-storey rear extensions, loft conversions and outbuildings can go ahead under permitted development, the national rights that allow some work without a full application, within limits on size and position. Flats get no such rights, though flats are rare here. Larger or two-storey extensions, anything on the front, and any work to a listed building go to Epping Forest District Council for consent. The council can also remove permitted development rights on particular streets or houses, so confirm which rules apply to a specific address with the council.
Sheering gives most owners a good deal of freedom to extend. The 17 listed buildings and the clay under the foundations are the only real limits.