Yes, unless the house is old, pretty, or standing next to something that is. Hundreds of buildings here are listed. Seventeen conservation areas cover the older streets. Half the ground moves with the weather. The neighbours keep applying anyway, and that is the part worth copying: apply properly, and assume nothing.
Reading has 653 listed buildings. Seven are Grade I, 35 are Grade II* and 611 are Grade II. Listing covers the whole building, inside and out, so changes that would be routine elsewhere need listed building consent, and that includes some that never touch the outside. Replacing windows, moving walls or stripping out old fittings can all need it. Carry on without it and you are not just breaking a planning rule. It is a criminal offence, and saying the builder assured you it was fine is no defence.
There are 17 conservation areas, running from Market Place and London Street in the centre to Eldon Square, Downshire Square and Alexandra Road. Inside them, the council looks harder at anything that changes how a street looks, and some work that needs no permission elsewhere may need it here. Check whether the house sits inside a boundary before the architect draws the rear extension you have already told your friends about.
There are 6 scheduled monuments in the area, including the remains of Reading Abbey. This is the strictest tier of protection, and it matters mainly if your garden backs onto one.
The neighbours are not deterred. Between July 2023 and June 2026 there were 11,875 planning applications, with 5,208 of them in the last twelve months. That is plenty of evidence that people alter homes here all the time. It says nothing about how many got what they asked for, so do not read it as a promise.
The ground is the quieter issue. The British Geological Survey rates shrink-swell clay in the area up to class 3, and about 52% of the area reaches that level. Clay like this swells when wet and shrinks when dry, which affects how deep an extension's foundations have to go. It is not a reason to panic. It is a reason to get a structural engineer's view before the builder quotes, because the quote changes when the trench gets deeper.
One listed building in the area is on Historic England's Heritage at Risk register. That means a building in poor condition, where repair work may attract grants and will certainly attract scrutiny. It is a problem for whoever owns that building, not a warning for someone buying an ordinary house down the road.
For a house outside a conservation area and not listed, some extensions can go ahead under permitted development without a full application. Inside a conservation area, or on a listed building, assume you need consent until the council tells you otherwise in writing. Before exchanging contracts, check the listing, the conservation area boundary and the planning history of the property, and ask the seller's solicitor whether earlier work had the consents it needed.
Freedom to alter a home is Reading's weak spot. On the older streets the planning officer has as much say as the owner, so budget for consents as well as the building work.