Architectural design and planning in Hanworth

Covering Hanworth

Our coverage around Hanworth (TW13) also includes Feltham (2 miles to the north-west) and Sunbury-on-Thames.

Homes in London

Much of London’s housing is Victorian and Edwardian terraces, which is why side return extensions, rear dormers and mansards are so common. Many streets are in conservation areas, and several boroughs use Article 4 directions that remove some permitted development rights.

What does architectural design and planning involve?

Designing and building under one roof means the drawings are priced as they are drawn, so there are fewer surprises when the quote arrives. If you only need drawings and a planning application, we can do that and you are free to use any builder.

Design options and 3D views
Planning or lawful development certificate drawings
Structural engineer’s calculations

How much does architectural design and planning cost in Hanworth?

Guide prices for architectural design and planning, including VAT where it applies. Your fixed price is confirmed in writing after the survey.

Architectural design and planning	Guide price incl. VAT
Measured survey and existing drawings	£500 to £1,200
Planning drawings and application	£1,200 to £3,000
Building regulations drawings and specification	£1,000 to £2,500
Structural calculations	£500 to £2,000

What approvals does architectural design and planning need in England?

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.

We confirm whether your project is permitted development, needs prior approval or needs a householder application, and prepare the right submission.

What can change the price or programme?

Planning and building regulations are separate approvals; most projects need building regulations even when planning is not needed.
Pre-application advice from the council can help on sensitive sites.

What happens after I enquire?

Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

What people ask before starting

How much do extension plans cost?

Typically £3,000 to £7,000 including VAT from measured survey to building regulations drawings, plus council fees.

Do I need a structural engineer?

For steels, new openings, lofts and extensions, yes. We arrange the calculations.

How do I get a price for architectural design and planning in Hanworth?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Architectural design and planning in nearby towns

Learn more about architectural design and planning, or see every project we cover in Hanworth.