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Serving Southampton & Surrounding Areas

Architectural Design in Southampton

Hampshire Build is an architectural design practice proudly serving Southampton and the surrounding Hampshire area. We specialize in house extensions, loft conversions, and garage conversions.

With over 20 years experience and working knowledge of Southampton City Council requirements, we understand the unique challenges of working in Hampshire's largest city with its diverse range of property types.

20+ years’ experience

Why Southampton Homeowners Choose Us

  • Fixed-fee packages from £1,950 + VAT
  • Expert knowledge of local requirements
  • Complimentary feasibility consultation
  • Survey and drawing schedule agreed after instruction
  • City centre to suburbs expertise

Our Services in Southampton

Loft Conversions in Southampton

Transform your unused loft into a valuable bedroom, office, or living area. Perfect for Southampton's Victorian terraces and Edwardian semis.

From £1,950 + VAT

House Extensions in Southampton

Single-storey, two-storey, or wrap-around extensions designed to maximize your Southampton property's potential.

From £1,950 + VAT

Planning Permission in Southampton

Expert navigation of Southampton City Council planning requirements.

From £1,950 + VAT

Working with Southampton City Council

Southampton has a mix of urban and suburban planning requirements. From the Old Town conservation area to modern developments, we're experienced with Southampton's diverse planning landscape.

  • Planning portal: southampton.gov.uk/planning
  • Councils aim to decide householder applications within 8 weeks of validation. Timing is set by the council and is not guaranteed.
  • Conservation areas including Old Town, Portswood

Why Extend in Southampton?

With the university, cruise port, and excellent transport links, Southampton property is in high demand. More homeowners choose to extend rather than relocate.

Frequently Asked Questions - Southampton

Building costs depend on the surveyed property and agreed scope. Use our free Feasibility Check for an indicative budget, then obtain written contractor quotations. Our design packages start from £1,950 + VAT; building work and statutory fees are separate.

Many extensions fall under Permitted Development Rights. However, Southampton has several conservation areas including the Old Town. Explore your project with our Free Feasibility Study.

Standard planning applications with Southampton City Council typically take 8-12 weeks.

Rear extensions and loft conversions work exceptionally well for Southampton's terraced housing stock. We design practical extensions that maximize space.

Yes, we have a network of trusted builders across Hampshire. We can recommend reliable contractors for your Southampton project.

Ready to Transform Your Southampton Property?

Book a complimentary consultation today – no obligation, no hidden fees.

Nearby Areas We Serve

Extension design for Southampton's established neighbourhoods

Shirley, Bitterne, Bassett and Portswood include terraced and semi-detached homes where rear kitchen layouts, access and neighbouring windows need careful consideration. A loft or garage conversion may offer an alternative when garden space is limited.

Check the planning history and any conservation-area or Article 4 restrictions for the particular address before relying on permitted development. Southampton City Council determines local planning applications; no approval or council timetable is guaranteed.

Hampshire Build provides architectural design. Structural calculations are prepared by an independent qualified structural engineer.

Start your Project Feasibility Check