Home extensions
Concept, planning and technical design for rear, side or multi-storey extensions to existing homes.
Architects Southampton
Find architects in Southampton
Planning an extension, conversion, refurbishment or new development in Southampton? Describe the property, site and goals once, then compare architects who cover the city.
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Up to 3 local responses
You choose who to hire
Looking for an architect near you in Southampton?
Enter the postcode and explain the existing property, proposed changes, approximate budget and whether you already have surveys or planning history. Suitable Southampton architects can then judge the design, planning and technical work required.
Common architect services
What can architects in Southampton help with?
Choose a professional whose experience matches the scale and practical requirements of your job.
Renovations & remodelling
Reworking internal layouts, circulation and spaces while coordinating structural and building-services requirements.
Planning applications
Drawings and design information for projects that require planning permission or specific local assessment.
Building Regulations design
Technical information and coordination needed to demonstrate compliance with relevant Building Regulations.
Listed & heritage buildings
Design work where listed-building consent, conservation context and historic fabric need special attention.
New-build design
Concept through technical design for new homes and other buildings where site, planning and construction constraints are considered together.
How much does an architect cost?
Fees depend on project value, complexity and which RIBA-style stages or services are included. Current 2026 UK guidance gives these broad examples:
£3,000–£5,000Extension planning drawings
£2,000–£7,500+Renovation projects
£5,000–£8,000Building regs & tender drawings
£5,000–£12,000Full house-extension fee guide
Indicative UK guidance checked August 2026 from MyJobQuote. Southampton architect fees vary with project value, survey information, planning complexity, heritage, structural coordination and how far the architect remains involved after approval.
Compare like for like
Compare the same design stages
One fee may cover planning drawings only while another includes technical design, tendering and site support. Compare scope before comparing price.
- State the project budget and what you want to achieve, not only the room dimensions.
- Ask which design stages, applications and revisions are included.
- Clarify structural engineer, surveyor and specialist-consultant costs separately.
- For heritage property, mention listing or conservation-area status from the start.
Cost sources: MyJobQuote 2026 architect cost guide
Southampton planning context
Early planning checks matter around heritage areas and constrained sites
Southampton's planning service encourages early advice on proposals that may face design, heritage or other constraints. The city also has substantial conservation and listed-building coverage.
The council offers formal pre-application planning advice
Southampton City Council says its pre-application service can identify key planning issues, flag design changes and reduce the risk of incomplete or difficult applications. For extensions, conversions or more complex projects, an architect can help decide whether early planning advice is worthwhile before detailed drawings are finalised.
Southampton has 20 conservation areas and more than 450 listed buildings
The council identifies 20 conservation areas and more than 450 listed buildings across Southampton. Listed-building protection can cover interiors as well as facades, so heritage status should be checked before assuming a standard extension or refurbishment route.
Local to Southampton
Architects covering Southampton
Architects may work across Southampton according to project type and scope. Example areas include:
PortswoodShirleyBitterneWoolstonBassettSwaythlingFreemantleBitterne Park
Share the site constraints at the beginning
Include listing or conservation status, nearby trees, previous applications, access limitations and any known structural issues. Early constraints can change the design long before a planning submission is made.
Ask what stage the quote covers. Concept design, planning drawings, Building Regulations information, tender support and contract administration are separate services, so compare architects on the same scope.
How it works
Describe the project once, then compare Southampton architects
Budget, site, design ambition and required stages help architects decide whether the project fits their practice.
Set out the project brief
Add the postcode, property type, intended changes, budget and any known planning or heritage constraints.
Hear from suitable architects
Up to three interested Southampton architects can respond.
Compare service stages
Check relevant experience and compare exactly which surveys, drawings, applications and construction-stage services are included.
Before you hire
What should you check before hiring an architect?
Relevant project experience and a clearly defined service are more useful than comparing headline percentage fees alone.
Compare similar project experience
Look for work with a similar property type, planning context, budget and technical complexity.
Define the service stages
Agree whether the appointment stops at planning or continues through technical design, tender and construction support.
Clarify other consultants
Ask who appoints structural, measured-survey, party-wall or specialist consultants and whether their fees are separate.
Questions
Architects in Southampton: common questions
Useful answers before you post the job.
How much does an architect cost in Southampton?
Fees depend on project value, complexity and the stages you appoint them for. Ask each architect to state whether the quote covers concept design, planning, technical drawings and later project support.
Do I need an architect for planning permission?
Not always, but an architect can be useful where design quality, heritage, constrained sites or more complex planning issues need to be resolved and presented clearly.
What is Southampton's pre-application advice service?
It is a council service that gives planning guidance before an application is submitted and can identify key issues or information requirements early.
Does listed-building status affect internal work?
Yes. Southampton City Council notes that listing covers the whole building, inside and out, and listed-building consent is usually required for works that affect its special character.
Do I have to hire an architect who responds?
No. Up to three interested local professionals can respond and there is no obligation to hire.
Ready to compare architects in Southampton?
Describe the property, project and planning position once, then compare interested Southampton architects and their proposals.
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