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Serving Stevenage & Surrounding Areas

Architectural Design in Stevenage

Hampshire Build serves Stevenage homeowners with expert architectural design. We specialize in house extensions and loft conversions for both New Town properties and period homes in the Old Town.

With a deep understanding of Stevenage Borough Council requirements, we deliver fixed-fee packages from £1,950 + VAT with no hidden costs.

20+ years’ experience

Why Stevenage Homeowners Choose Us

  • Fixed-fee packages from £1,950 + VAT
  • Old Town & New Town expertise
  • Complimentary feasibility consultation

Our Services in Stevenage

Loft Conversions in Stevenage

Transform your unused loft space. Perfect for Stevenage's New Town properties and period homes in the Old Town.

From £1,950 + VAT

House Extensions in Stevenage

Single-storey, two-storey, or wrap-around extensions designed for Stevenage properties.

From £1,950 + VAT

Planning Permission in Stevenage

Expert navigation of Stevenage Borough Council requirements for both Old Town and New Town properties.

From £1,950 + VAT

Working with Stevenage Borough Council

Stevenage's New Town heritage means many properties have unique design constraints. We're experienced with planning for both Old Town and New Town properties.

  • Planning portal: stevenage.gov.uk/planning-and-building-control
  • Councils aim to decide householder applications within 8 weeks of validation. Timing is set by the council and is not guaranteed.
  • Old Town conservation area

Why Extend in Stevenage?

With excellent rail links to London King's Cross, Stevenage offers great value. A well-designed extension adds space and value without the costs and stress of moving.

Frequently Asked Questions - Stevenage

A single-storey rear extension may qualify for permitted development up to 4 metres for a detached house or 3 metres for other houses, subject to all the rules. Larger home extensions may extend up to 8 metres or 6 metres respectively through the prior approval process. These are the limits described in our permitted development guide, not automatic permission for any property. Check Stevenage Borough Council's guidance and the property's planning history.

Conservation areas and Article 4 Directions can remove some permitted development rights. Check the property's planning history, heritage designations and any conditions or Article 4 Direction. Permitted development limits depend on the actual house and proposal. A lawful development certificate can provide evidence that qualifying works are lawful. Listed-building consent and other approvals may still be needed.

Our fixed-fee design packages are Pre-Build from £1,950 + VAT, Premium £2,950 + VAT and Premium Plus £3,950 + VAT. Building work and statutory fees are separate. Use the free feasibility study for an indicative project-specific cost check.

Building regulation drawings are prepared for Building Notice submission. The Pre-Build and Premium packages do not include that submission; Premium Plus does, with the council fee excluded. Building Control determines compliance. Structural calculations are prepared by an independent qualified structural engineer.

Councils aim to decide householder applications within 8 weeks of validation. Timing is set by the council and is not guaranteed.

Ready to Transform Your Stevenage Property?

Book a complimentary consultation today.

Nearby Areas We Serve

Public council planning decisions

Recent planning decisions near Stevenage

Updated 10 October 2026

In the 12 months to 10 October 2026, Stevenage planning authority decided 43 householder home-improvement applications near Stevenage in the cached public records — 41 approved.

Coverage: Within approximately 2 km of the town centre. Extensions, loft conversions, dormers, garage conversions and porches only. Records without clear householder classification, location or final decision are excluded. Proposal summaries describe the home-improvement element; see the council record for the full proposal. This is not a complete council-register census.

These are public council decisions about other people’s applications. They are not Hampshire Build projects and do not predict the outcome of your project.

Public information sourced from Stevenage planning authority planning registers. Data courtesy of PlanIt.

Check if your project needs planning