House Extensions in Pinner, HA5
Rear, side-return, wraparound and double-storey extensions for houses in Pinner, designed, approved and built by one team.
Covered under one contract
- Architectural and structural design
- Planning or lawful development certificate
- Foundations, walls, roof and steels
- Glazing, rooflights and doors
- Kitchen designed and fitted
- Building control and party wall handled
House Extensions in Pinner.
An extension is the surest way to get the open-plan kitchen and dining room most families want, and the houses in Pinner generally lend themselves to it: a side return to fill, a rear garden to build into, or on larger plots room for a full-width or double-storey addition.
We design the extension around how you will use it, not around the maximum footprint the rules allow. That means thinking about light, the level change to the garden, where the kitchen sits, how the old and new parts of the house meet and what happens to the rooms you already have. The structural engineering, party wall matters and building control inspections are all handled by us.
Approvals are checked on the first visit. Many single-storey rear extensions fall within permitted development, but the London Borough of Harrow applies tighter rules in conservation areas and to flats and listed buildings, so we confirm the route before any drawings are produced and then manage the application if one is needed.
- Area
- Pinner, HA5
- Council
- London Borough of Harrow
- Housing
- Timber-framed and Georgian houses in the village, 1930s Metroland semis and detached houses, larger houses on the Pinner Hill estate
- Transport
- Pinner (Metropolitan)
- Rear or side return, on site
- 10 to 16 weeks
- Design and approvals
- 8 to 14 weeks before start
- Glazing lead time
- 6 to 10 weeks, ordered early
- Consent
- Permitted development or householder application
- Party wall
- Notices served by us
Pinner: the houses and the planning rules.
Pinner is Metroland with a medieval village at its centre: a High Street of timber-framed and Georgian buildings running up to the church, surrounded by streets of well-built 1930s houses and, on the hill, larger detached homes on generous plots. The Metropolitan line makes it one of the most sought-after suburbs in north-west London.
Most of the work is to the inter-war houses: rear and side extensions that turn a small kitchen into a family room, hip-to-gable and rear dormer lofts, and full refurbishments that modernise services and layouts while keeping the bay windows and brickwork that give the streets their character.
The Pinner High Street and Pinnerwood Park conservation areas cover the village and its garden estate; most other streets are unrestricted.
London Borough of Harrow
Harrow decides applications. Outside the two conservation areas, most rear extensions and lofts fall within permitted development, confirmed by a lawful development certificate.
Pinner village
Within the High Street conservation area and around listed buildings, external changes need a full application and careful materials.
Larger extensions
Double-storey and wraparound extensions need a householder application and are assessed on their effect on neighbours and the street.
Approvals for house extensions in Pinner.
Many single-storey rear extensions are permitted development within the 3 or 4 metre limits, or 6 and 8 metres under prior approval. Conservation areas, flats, listed buildings and larger schemes need a householder application, and every extension needs building regulations approval.
Harrow decides applications. Outside the two conservation areas, most rear extensions and lofts fall within permitted development, confirmed by a lawful development certificate.
What house extensions in Pinner includes.
- Architectural and structural design
- Planning or lawful development certificate
- Foundations, walls, roof and steels
- Glazing, rooflights and doors
- Kitchen designed and fitted
- Building control and party wall handled
From site visit to handover.
- 01
Site visit & consultation
We visit, listen and measure. Brief, budget and constraints understood before any advice is given.
- 02
Design & itemised quote
Our architects and engineers draw the scheme, and from that we provide a transparent, itemised quotation for your approval.
- 03
Planning & approvals
Planning applications, building control and party wall matters handled for you.
- 04
Build, managed weekly
Our own trades, sequenced by a site manager. Progress reported every week.
- 05
Handover & aftercare
Joint snagging walk-through, documentation, and a guarantee on our workmanship.
House Extensions in Pinner: your questions.
Do I need planning permission for an extension in Pinner?
Not always. Permitted development covers many single-storey rear extensions on houses, but the London Borough of Harrow removes those rights in some conservation areas, and flats and listed buildings always need an application. We confirm the route at the site visit.
How long does an extension take to build?
Ten to sixteen weeks on site for a single-storey extension once approvals are in place, plus the design and approval period beforehand. Glazing has the longest lead time, so we order it early.
Which parts of Pinner do you cover?
All of Pinner and HA5, including High Street, Paines Lane, Waxwell Lane, West End Lane, Pinner Hill Road, Cecil Park, and the neighbouring districts. We are based in London and our teams work across central, north, north-west, west and south-west London.
Other services in Pinner.
House Refurbishment in Pinner
Read more
Flat Refurbishment in Pinner
Read more
Structural Alterations in Pinner
Read more
Loft Conversions in Pinner
Read more
Basement Conversions in Pinner
Read more
Kitchen Renovation in Pinner
Read more
Bathroom Renovation in Pinner
Read more
Bespoke Joinery & Fitted Furniture in Pinner
Read more
Architectural & Interior Design in Pinner
Read more
Planning Permission & Building Regulations in Pinner
Read moreHouse Extensions across London.
Central London
All of Central LondonNorth London
All of North LondonNorth-West London
All of North-West LondonTalk to us about an extension in Pinner.
We will visit, listen and explain what is possible for your property and how it would be approved. No pressure, no sales pitch.