Covering Grimsby
Grimsby sits 30 miles north-east of Lincoln, with Cleethorpes 2 miles to the east and Hull 16 miles to the north-west.
Homes in the East Midlands
The East Midlands combines red-brick terraces in the cities with a lot of post-war and modern estate housing, so rear extensions, garage conversions and loft conversions are all common.
What is a wraparound extension?
Because it removes two external walls, a wraparound needs careful structural design and a good plan for the corner where the steels meet. We design, apply for any permissions, build and finish the shell, and can fit the kitchen as part of the same contract.
- Design, planning drawings and structural calculations
- Party wall process with both neighbours if needed
- Steel frame or goalpost for the corner opening
How much does a wraparound extension cost in Grimsby?
Indicative costs for wraparound extensions. London and the South East usually sit towards the top of each range.
| Wraparound extensions | Guide price incl. VAT |
|---|---|
| Standard specification | £3,400 to £3,800 per m² |
| Good specification | £3,800 to £4,250 per m² |
| High specification | £4,250 to £4,700 per m² |
How is a wraparound extension approved in Grimsby?
English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.
In England a wraparound extension is treated as one extension, and because it covers both the side and the rear it does not normally fit within permitted development.
What can affect a wraparound extension?
- The corner steel connection is the critical detail and is designed by a structural engineer.
- Both neighbours may need party wall notices.
What are the steps?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
- Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
What people ask before starting
How long does a wraparound take?
Around 12 to 18 weeks on site after approvals.
Glazed roof or solid roof?
A mix usually works best: solid roof with rooflights over the kitchen and a glazed section over the dining area.
Do you work in Grimsby?
Yes. Grimsby is within our coverage for wraparound extensions, along with nearby Cleethorpes and Hull.
Other towns nearby
- Wraparound extensions in Cleethorpes
- Wraparound extensions in Hull
- Wraparound extensions in Scunthorpe
- Wraparound extensions in Beverley
Learn more about wraparound extensions, or see every project we cover in Grimsby.

