Two-storey extensions in Daventry
We design, get approval for and build two-storey extensions in Daventry and the surrounding area. Choose the type of extension below or book a free site visit.
Daventry at a glance
- Postcode districts
- NN11
- Area
- Northamptonshire, England
- Price region
- East Midlands
- Nearest towns
- Rugby (9 miles), Northampton (11.7 miles), Lutterworth (13.9 miles), Leamington Spa (15.3 miles)
- Distance to Northampton
- about 11.7 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.
We cover postcode district NN11 in and around Daventry, along with neighbouring Rugby, Northampton and Lutterworth.
Extensions available in Daventry
Two-storey rear extensions
Guide from £55,000 in Daventry, including VAT.
Learn more
Two-storey side extensions
Our East Midlands guide starts at £84,500 for this type.
Learn more
Two-storey wraparound extensions
Design, approvals and build for Daventry homes. Guide from £118,000.
Learn more
Part single, part two-storey extensions
From £70,500 in Daventry. Free visit to firm it up.
Learn more
Extensions over a garage
Guide from £31,000 in Daventry, including VAT.
Learn more
First-floor extensions
Guide from £24,500 in Daventry, including VAT.
Learn more
Two-storey extensions for semi-detached houses
Daventry guide price from £55,000, Standard spec.
Learn more
Two-storey extensions for detached houses
Our East Midlands guide starts at £84,500 for this type.
Learn more
Kitchen extensions with bedrooms above
From £55,000 (before kitchen units) in Daventry. Free visit to firm it up.
Learn more
Extra bedroom and en-suite extensions
From £55,000 (plus en-suite) in Daventry. Free visit to firm it up.
Learn moreWhich type suits your house?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Daventry we also design annexes, home offices and bedrooms over garages.
Also available in Northamptonshire
- 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 Daventry
Daventry 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 Daventry
Do you cover Daventry?
Yes. We cover Daventry (NN11) and the surrounding area, including Rugby and Northampton. The first site visit is free.
What does a two-storey extension cost in Daventry?
Using our East Midlands 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 £55,000–£74,000 including VAT. An extension over a garage is about £31,000–£45,000.
Which other places near Daventry do you cover?
Everywhere around it, including Rugby (9 miles), Northampton (11.7 miles) and Lutterworth (13.9 miles), and the rest of Northamptonshire.