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Planning permission for extensions in Ipswich

For Ipswich homeowners we handle planning permission for extensions, with fees agreed in writing before any work starts.

  • Guide price in IpswichFrom £350 inc VAT
  • PlanningWe find the right route for you
  • Timescale8–13 weeks typical decision period
  • Postcode districtsIP1, IP2, IP3, IP4, IP5
Homeowners reviewing extension elevation drawings and a 3D view on a tablet

Local to Ipswich

Site visits are available across Ipswich (IP1, IP2, IP3, IP4, IP5, IP8). Neighbouring towns we cover include Woodbridge (10 miles), Felixstowe (11 miles), Stowmarket (11 miles), Sudbury (18 miles).

For homes towards Essex, Harwich is around 10 miles away. The East of England mixes market-town terraces, inter-war semis and modern estates. Clay soils are common in parts of the region, which can affect foundation design.

Planning rules that apply in Ipswich

In England the main routes are permitted development (ideally confirmed with a lawful development certificate, £274), larger home extension prior approval (£249, 42 days) and a householder planning application (£548, normally 8 weeks), with council fees as set from 1 April 2026.

In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.

Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.

If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.

Applications are decided by the local planning authority (your district, borough or unitary council).

Fees in Ipswich

These are guide fees for Ipswich, adjusted for East of England (×1.06) and including VAT. Council application and inspection fees are paid separately.

OptionWhat it coversGuide price
EssentialPermitted development confirmed in writing (certificate or notification)£350 – £700
StandardHouseholder planning application handled£600 – £1,200
PremiumApplication with heritage or design statements, and responses to the council£950 – £1,700

Our handling fee only. Council fees are extra: in England from 1 April 2026 a householder application is £548, a lawful development certificate for a proposed extension £274 and a larger home extension prior approval £249. Drawings are priced separately.

Want a range for your exact size? The guide-price tool takes about a minute.

Who this service is for

  • Homeowners who would rather not deal with the council themselves
  • Projects in conservation areas or with previous refusals
  • Anyone unsure whether their extension needs permission

A lawful development certificate is not compulsory for permitted development, but it is the cleanest proof that the extension was lawful when you come to sell. We usually recommend one.

What happens next

Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.

  1. Free site visit

    We visit your Ipswich home, measure up, talk through what you want and check the planning position.

  2. Design and approvals

    We produce the drawings and structural design, and manage the approvals so they are in place before work starts.

  3. Fixed written price

    You receive a written, itemised price and programme. Nothing starts until you are happy with it.

  4. Build and sign-off

    We build it with one project manager, book the building control inspections and hand over the completion certificate.

Questions answered

Who do I contract with in Ipswich?

Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.

Will my neighbours in Ipswich be involved?

If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.

Do I need building regulations approval in Ipswich?

Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.

What happens if planning is refused?

You can revise the design and reapply, or appeal. We read the officer’s report and tell you honestly which option has a better chance.

How much does planning permission cost?

In England, from 1 April 2026 the council fee is £548 for a householder application, £274 for a lawful development certificate for a proposed extension and £249 for larger home extension prior approval. Our handling fee is separate.

Book a free site visit in Ipswich

We will measure up, check the planning position and give you honest guide figures.

  • Free, no-obligation site visit
  • Planning route checked before you spend on drawings
  • Written price once the design is agreed
  • Building control sign-off at the end

Prefer to talk? Call 0800 088 6341 or .

Book a free site visit

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