Two-storey extensions in Tilbury
We design, get approval for and build two-storey extensions in Tilbury and the surrounding area. Choose the type of extension below or book a free site visit.
Tilbury at a glance
- Postcode districts
- RM18
- Area
- Essex, England
- Price region
- East of England
- Nearest towns
- Chadwell St Mary (1.3 miles), Gravesend (1.5 miles), Grays (1.7 miles), Swanscombe (2.3 miles)
- Distance to Southend-on-Sea
- about 16.2 miles
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission.
Around Tilbury we also work in Chadwell St Mary, Gravesend and Grays, and across the rest of Essex. Postcode district in and near Tilbury: RM18.
Extensions available in Tilbury
Two-storey rear extensions
Guide from £57,500 in Tilbury, including VAT.
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Two-storey side extensions
Our East of England guide starts at £88,500 for this type.
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Two-storey wraparound extensions
For homes in Tilbury: typical guide from £124,000.
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Part single, part two-storey extensions
From £74,000 in Tilbury. Free visit to firm it up.
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Extensions over a garage
Our East of England guide starts at £32,500 for this type.
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First-floor extensions
Design, approvals and build for Tilbury homes. Guide from £26,000.
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Two-storey extensions for semi-detached houses
For homes in Tilbury: typical guide from £57,500.
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Two-storey extensions for detached houses
Guide from £88,500 in Tilbury, including VAT.
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Kitchen extensions with bedrooms above
Tilbury guide price from £57,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
Tilbury guide price from £57,500 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Tilbury, with a rough idea of the approval route and cost for each.
Also available in Essex
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Party wall notices for extensions
- Design and build two-storey extensions
Rules for Tilbury
Tilbury is in England. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission. Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
The full England rules explained
Questions about extensions in Tilbury
Do you cover Tilbury?
Yes. We cover Tilbury (RM18) and the surrounding area, including Chadwell St Mary and Gravesend. The first site visit is free.
What does a two-storey extension cost in Tilbury?
Using our East of England guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £57,500–£78,000 including VAT. An extension over a garage is about £32,500–£47,500.
Which other places near Tilbury do you cover?
Everywhere around it, including Chadwell St Mary (1.3 miles), Gravesend (1.5 miles) and Grays (1.7 miles), and the rest of Essex.