Backland Development
0800 088 6248Free to call Free plot appraisal

Build a home for family in your garden in Washington

The first question for any family in Washington thinking about building in the garden is usually this: annexe or proper house? The answer turns on the person moving in, how long they’re likely to stay, and whether you might ever want to sell or let the building on its own.

An annexe is used with your home and usually tied to it by condition. A separate dwelling stands alone, with its own permission and potentially its own title. Sunderland City Council assesses them on different terms, and council tax, CIL and VAT rules split along the same line. Our free plot appraisal sets out both, so you can decide with your family and your advisers.

Get a free appraisalCheck my garden
Single-storey garden home with wide glazed doors and a covered porch at the back of a family garden
Planning authority
Sunderland City Council
Postcodes
NE37, NE38
Noon sun, 21 March
About 35°
Shadow from a 5 m eaves line
About 7.1 m
Planning plan
Local Plan
County
Tyne and Wear

How it plays out in Washington

Daylight matters twice over when the new home is for a relative who spends much of the day indoors. At noon on 21 March the sun in Washington is about 35° above the horizon, so a two-storey eaves line around 5 m high casts a shadow of roughly 7.1 m. A single-storey annexe with eaves at half that height casts one about half as long, which is one reason low buildings often sit more easily in a garden. By late December the midday sun climbs only about 12°, so we test winter light on both homes, and on next-door gardens, before the layout is fixed.

Section showing noon sun and shadows in Washington: about 35 degrees on 21 March and 12 degrees on 21 December21 m21 Mar, noon: sun 35°, shadow 7.1 m21 Dec, noon: sun 12°, shadow 24.2 mExistingNew home
Noon sun in Washington on 21 March sits about 35° above the horizon, so a typical two-storey eaves line (about 5 m) throws a shadow of roughly 7.1 m. In December the sun is only about 12° up and shadows stretch much further. Drawn for a garden facing north, where it matters most.

The next steps, locally

From first call to keys, a family home in Washington follows a clear order. Free appraisal and site visit; measured survey and design around the person moving in; a planning application to Sunderland City Council; approval under the Building Regulations and any CIL exemption claimed before work starts; then the build, with you living next door throughout. You receive a written quote after design and survey, and we keep the household updated at each stage.

  1. Free plot appraisal

    We look at your plot, access and the planning picture from the desk, talk through who will live in the new home, and visit if it looks viable. There’s no cost and no obligation.

  2. Annexe or separate home

    We set out both routes for your plot, covering what each means for planning, ownership, council tax, CIL and VAT, so you can decide with your family and advisers before design starts.

  3. Planning and approvals

    We prepare and submit the planning application and manage it with the council, which makes the decision. Before work starts, approval under the Building Regulations is in place and any CIL exemption has been claimed.

  4. Build and handover

    We build while you carry on living next door, with access, deliveries and working hours agreed up front. At handover you get the completion certificate and the paperwork you’ll need for council tax, lenders and any VAT claim.

Worth checking early

  • An annexe tied by planning condition usually can’t be sold or let separately, which limits flexibility later.
  • VAT savings available on a separate dwelling often don’t apply to an annexe; take advice from a tax adviser before choosing.
  • Family plans change: agree ownership, costs and what happens if circumstances change in writing, with a solicitor.

Washington: questions to ask

Can I reclaim VAT on a family annexe in Washington?

Often not. HMRC’s guidance gives an annexe that can’t be used or sold separately from the main house as an example of work that can’t be zero-rated, and the DIY housebuilders refund scheme asks the same question. A separate dwelling is usually treated differently. Take advice from a tax adviser before you settle the planning route, because the wording of the permission matters.

Is CIL payable on a family home in Washington?

Only if Sunderland City Council has adopted the Community Infrastructure Levy, which its website will confirm, and we check it for you during the appraisal. Where it applies, self-build and residential annexe exemptions exist, but both must be claimed before work starts and can be withdrawn if the home is sold or let within three years of completion.

Will an annexe in Washington put up my council tax?

It might. Annexes can be banded separately, but exemptions exist for annexes lived in by certain dependent relatives, and in some cases a discount applies where family live there or the annexe is used as part of the main home. Who qualifies depends on the relative’s circumstances and how the annexe is used. Sunderland City Council’s council tax team can tell you how the rules apply to your household.

Do I need planning permission for a granny annexe in Washington?

Yes, almost always for a detached annexe with its own kitchen, bathroom and bedroom. Sunderland City Council will treat it as accommodation linked to your home and will usually add a condition so it can’t be let or sold separately. A garden building used only as a home office or gym is a different matter, but sleeping and cooking take it beyond those allowances.

Other options in Washington

Family home in your garden near Washington

Find out what your garden could become

Free garden plot appraisal. No cost, no obligation, and a straight answer if it won’t work.

Get my free appraisal 0800 088 6248